Carrier Weathermaster 48P2030-100 Controls, Start-Up, Operation, Service, And Troubleshooting
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Carrier Weathermaster 48P2030-100 Controls, Start-Up, Operation, Service, And Troubleshooting

Carrier Weathermaster 48P2030-100 Controls, Start-Up, Operation, Service, And Troubleshooting

Single package large rooftop units with comfortlink version 7.x controls
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Controls, Start-Up, Operation,
Service and Troubleshooting
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Conventions Used in This Manual . . . . . . . . . . . . . . . 4
BASIC CONTROL USAGE . . . . . . . . . . . . . . . . . . . . . 4
ComfortLink Controls . . . . . . . . . . . . . . . . . . . . . . . . . 4
Scrolling Marquee . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Accessory Navigator™ Display . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Pilot™ Interface . . . . . . . . . . . . . . . . . . . . . . . 7
CCN Tables and Display . . . . . . . . . . . . . . . . . . . . . . . 7
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Accessory Installation . . . . . . . . . . . . . . . . . . . . . . . . 8
Crankcase Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Evaporator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CONTROLS QUICK START . . . . . . . . . . . . . . . . . . . 33
Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . 33
Economizer Options . . . . . . . . . . . . . . . . . . . . . . . . . 34
Indoor Air Quality Options . . . . . . . . . . . . . . . . . . . . 34
Exhaust Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Set Clock on VFD (If Installed) . . . . . . . . . . . . . . . . . 35
Programming Operating Schedules . . . . . . . . . . . . 35
SERVICE TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Service Test Mode Logic . . . . . . . . . . . . . . . . . . . . . 36
Independent Outputs . . . . . . . . . . . . . . . . . . . . . . . . 36
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
®
System . . . . . . . . . . . . . . . . . . . . . . . 38
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
THIRD PARTY CONTROL . . . . . . . . . . . . . . . . . . . . . 39
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Alarm Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
VFD Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Supply Air Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Demand Limit Control . . . . . . . . . . . . . . . . . . . . . . . . 40
CONTROLS OPERATION . . . . . . . . . . . . . . . . . . . . . 41
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480241-01
Printed in U.S.A.
Form 48/50P-8T
Single Package Large Rooftop Units with
ComfortLink Version 7.X Controls
Unit Configuration Submenu . . . . . . . . . . . . . . . . . .44
Cooling Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Heating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Static Pressure Control . . . . . . . . . . . . . . . . . . . . . . .69
Fan Status Monitoring . . . . . . . . . . . . . . . . . . . . . . . .72
Dirty Filter Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Economizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Building Pressure Control . . . . . . . . . . . . . . . . . . . .80
Smoke Control Modes . . . . . . . . . . . . . . . . . . . . . . . .83
Indoor Air Quality Control . . . . . . . . . . . . . . . . . . . . .84
Humidification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Dehumidification and Reheat . . . . . . . . . . . . . . . . . .88
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Temperature Compensated Start . . . . . . . . . . . . . . .93
Carrier Comfort Network® (CCN) . . . . . . . . . . . . . . .93
Alert Limit Configuration . . . . . . . . . . . . . . . . . . . . . .94
Sensor Trim Configuration . . . . . . . . . . . . . . . . . . . .95
Discrete Switch Logic Configuration . . . . . . . . . . . .96
Display Configuration . . . . . . . . . . . . . . . . . . . . . . . .97
VFD Configurations . . . . . . . . . . . . . . . . . . . . . . . . . .97
Remote Control Switch Input . . . . . . . . . . . . . . . . . .99
Hot Gas Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Space Temperature Offset . . . . . . . . . . . . . . . . . . . .99
TIME CLOCK CONFIGURATION . . . . . . . . . . . . . . .100
Hour and Minute (HH.MM) . . . . . . . . . . . . . . . . . . . .100
Month of Year (MNTH) . . . . . . . . . . . . . . . . . . . . . . .100
Day of Month (DOM) . . . . . . . . . . . . . . . . . . . . . . . .100
Day of Week (DAY) . . . . . . . . . . . . . . . . . . . . . . . . . .100
Year (YEAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Local Time Schedule (SCH.L) . . . . . . . . . . . . . . . . .100
Local Holiday Schedules (HOL.L) . . . . . . . . . . . . .100
Daylight Savings Time (DAY.S) . . . . . . . . . . . . . . .100
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .102
Complete Unit Stoppage . . . . . . . . . . . . . . . . . . . . .102
Single Circuit Stoppage . . . . . . . . . . . . . . . . . . . . .102
Service Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Restart Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .102
Humidi-MiZer® Troubleshooting . . . . . . . . . . . . . .102
Thermistor Troubleshooting . . . . . . . . . . . . . . . . . .102
Transducer Troubleshooting . . . . . . . . . . . . . . . . .111
Forcing Inputs and Outputs . . . . . . . . . . . . . . . . . .111
Run Status Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .111
Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . .118
MAJOR SYSTEM COMPONENTS . . . . . . . . . . . . . .129
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Factory-Installed Components . . . . . . . . . . . . . . . .129
Pg 1
Weathermaster
48/50P2,P3,P4,P5030-100
8-19
Replaces: 48/50P-7T
®

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Summary of Contents for Carrier Weathermaster 48P2030-100

  • Page 1: Table Of Contents

    Crankcase Heaters ......8 Carrier Comfort Network® (CCN) ....93 Evaporator Fan .

  • Page 2: Safety Considerations

    Accessory Control Components ....149 SERVICE ........151 WARNING Service Access .
  • Page 3 WARNING WARNING DO NOT USE TORCH to remove any component. System ELECTRICAL SHOCK HAZARD contains oil and refrigerant under pressure. Before performing service or maintenance operation on To remove a component, wear protective gloves and gog- unit, turn off and lock off main power switch to unit. Elec- gles and proceed as follows: trical shock can cause personal injury and death.

  • Page 4: General

    Occupied and Un- vice can be done through a unit-mounted scrolling marquee. occupied schedule modes. This control also manages: Access can also be done through the Carrier Comfort Net- work ® using ComfortVIEW™ software, Network Service •...

  • Page 5: Scrolling Marquee

    Unit- mounted actuators provide digital feedback data to the unit control. The ComfortLink controller is fully communicating and cable- ready for connection to the Carrier Comfort Network ® (CCN) building management system. The control provides high-speed communications for remote monitoring.
  • Page 6 Table 2 — Scrolling Marquee Menu Display Structure SERVICE TIME OPERATING TEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATION ALARMS STATUS TEST CLOCK MODES Auto View of Service Test Mode Air Pressures Occupied Heat General Inputs Fans Unit Time of Day System Currently Run Status (TEST)

  • Page 7: System Pilot™ Interface

    SELECT the 3V™ system and can serve as a user-interface and configu- ration tool for all Carrier communicating devices. The System Pilot interface can be used to install and commission a 3V zon- ing system, linkage compatible air source, universal controller, and all other devices operating on the Carrier communicating network.

  • Page 8: Accessory Installation

    Use the following steps for the controls: Accessory Installation Set any control configurations that are required (field- Check to make sure that all accessories, including space ther- mostats and sensors, have been installed and wired as required installed accessories, etc.). The unit is factory configured by the instructions and unit wiring diagrams.
  • Page 9 Table 3 — Fan Performance — 48P2,P3,P4,P5030 and 50P2,P3030 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 6,000 0.59 0.91 1.27 1.66 2.07 2.50 2.93 3.38 7,500 0.94 1.28 1.68 2.11 2.57 3.05 3.54 4.05 9,000 1.46 1.80 2.22...
  • Page 10 Table 4 — Fan Performance — 48P2,P3,P4,P5035 and 50P2,P3035 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 7,000 0.84 1.19 1.58 2.01 2.46 2.93 3.40 3.90 8,000 1.14 1.50 1.92 2.37 2.85 3.35 3.87 4.39 10,000 1.98 2.36 2.80...
  • Page 11 Table 5 — Fan Performance — 48P2,P3,P4,P5040 and 50P2,P3040 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 8,000 0.98 1.33 1.72 2.14 2.58 3.06 3.55 4.07 10,000 1.67 2.11 2.55 3.01 3.51 4.03 4.58 5.16 12,000 2.65 3.18 3.70...
  • Page 12 Table 6 — Fan Performance — 48P2,P3,P4,P5050 and 50P2,P3050 Units without Discharge Plenum AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 9,000 1.34 1.73 2.15 2.60 3.08 3.58 4.11 4.66 10,000 1.74 2.17 2.62 3.09 3.59 4.12 4.68 5.26 12,000 2.76 3.29 3.81...
  • Page 13 Table 7 — Fan Performance — 48P2,P3,P4,P5055 and 50P2,P3055 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 10,000 1.04 1.50 2.03 2.66 3.41 4.26 5.20 6.20 12,500 1.69 2.23 2.78 3.40 4.10 4.88 5.75 6.70 15,000 2.59 3.23 3.85...
  • Page 14 Table 8 — Fan Performance — 48P2,P3,P4,P5060 and 50P2,P3060 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 12,000 1.54 2.03 2.57 3.20 3.93 4.74 5.63 6.58 15,000 2.65 3.27 3.88 4.53 5.24 6.04 6.91 7.85 18,000 4.22 5.00 5.73...
  • Page 15 Table 9 — Fan Performance — 48P2,P3,P4,P5070 and 50P2,P3070 Units without Discharge Plenum* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 14,000 2.23 2.80 3.38 4.02 4.73 5.53 6.42 7.37 17,500 3.92 4.67 5.39 6.10 6.84 7.64 8.50 9.42 21,000 6.36 7.29 8.18...
  • Page 16 Table 10 — Fan Performance — 50P2,P3030 Units with Discharge Plenum and 50P4,P5030 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 6,000 0.95 1.35 1.82 2.35 2.92 3.52 4.14 4.78 7,500 1.51 1.93 2.41 2.94 3.51 4.13 4.78 5.46 9,000 2.28 2.73...
  • Page 17 Table 11 — Fan Performance — 50P2,P3035 Units with Discharge Plenum and 50P4,P5035 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 7,000 1.35 1.78 2.26 2.80 3.38 4.00 4.66 5.34 8,000 1.81 2.25 2.75 3.29 3.87 4.50 5.16 5.86 10,000 3.04 3.52...
  • Page 18 Table 12 — Fan Performance — 50P2,P3040 Units with Discharge Plenum and 50P4,P5040 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 8,000 1.62 2.10 2.62 3.18 3.76 4.36 4.97 5.60 10,000 2.66 3.19 3.76 4.36 4.99 5.64 6.31 7.00 12,000 4.09 4.68...
  • Page 19 Table 13 — Fan Performance — 50P2,P3050 Units with Discharge Plenum and 50P4,P5050 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 9,000 2.15 2.67 3.23 3.83 4.44 5.08 5.73 6.40 10,000 2.74 3.28 3.87 4.48 5.12 5.78 6.46 7.16 12,000 4.23 4.82...
  • Page 20 Table 14 — Fan Performance — 50P2,P3055 Units with Discharge Plenum and 50P4,P5055 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 10,000 1.21 1.71 2.29 2.97 3.76 4.63 5.56 6.51 12,500 2.01 2.63 3.26 3.95 4.71 5.58 6.52 7.54 15,000 3.13 3.90...
  • Page 21 Table 15 — Fan Performance — 50P2,P3060 Units with Discharge Plenum and 50P4,P5060 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 12,000 1.82 2.41 3.04 3.72 4.47 5.26 6.11 7.01 15,000 3.14 3.87 4.61 5.38 6.19 7.05 7.95 8.90 18,000 5.03 5.92...
  • Page 22 Table 16 — Fan Performance — 50P2,P3070 Units with Discharge Plenum and 50P4,P5070 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 14,000 2.64 3.32 4.02 4.76 5.55 6.39 7.27 8.20 17,500 4.67 5.54 6.39...
  • Page 23 Table 17 — Fan Performance — 48/50P2,P3,P4,P5075 Units with Forward-Curved Fan AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (Cfm) 14,000 2.35 3.06 3.80 4.59 5.43 6.30 7.21 8.15 16,000 3.27 4.06 4.88 5.74 6.65 7.59 8.57 9.58 18,000 4.42 5.31 6.21 7.14 8.11...
  • Page 24 Table 18 — Fan Performance — 48/50P2,P3,P4,P5075 Units with Airfoil Fan* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 (Cfm) 15,000 3.02 3.91 4.83 5.80 6.81 7.87 8.97 10.10 3.52 4.45 5.41 6.42 7.47 8.56 9.69...
  • Page 25 Table 19 — Fan Performance — 48/50P2,P3,P4,P5090 Units with Forward-Curved Fan* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (Cfm) 16,000 3.27 4.06 4.88 5.74 6.65 7.59 8.57 9.58 18,000 4.42 5.31 6.21 7.14 8.11 9.12 10.17 11.25 20,000 5.83 6.82 7.81 8.82 9.86...
  • Page 26 Table 20 — Fan Performance — 48/50P2,P3,P4,P5090 Units with Airfoil Fan* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 (Cfm) 17,000 4.07 5.05 6.06 7.10 8.18 9.31 10.47 11.68 4.68 5.71 6.76 7.84 8.96 10.12 11.32...
  • Page 27 Table 21 — Fan Performance — 48/50P2,P3,P4,P5100 Units with Forward-Curved Fan* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 20,000 5.83 6.82 7.81 8.82 9.86 10.94 12.05 13.20 22,000 7.53 8.62 9.70 10.80 11.92 13.07 14.25 15.46 24,000 9.55 10.75 11.93 13.11 14.31...
  • Page 28 Table 22 — Fan Performance — 48/50P2,P3,P4,P5100 Units with Airfoil Fan* AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 (Cfm) 20,000 6.08 7.22 8.36 9.52 10.71 11.94 1019 13.20 1054 14.51 7.75 9.00 10.24 11.49 1008...
  • Page 29 Table 23 — Fan Performance — Standard Capacity Power Exhaust 48/50P2,P3,P4,P5030-050 Units AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 (cfm) Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 6,000 0.95 468 1.47 543...
  • Page 30 Table 24 — Fan Performance — Optional High-Capacity Power Exhaust (48/50P2,P3,P4,P5075-100) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW (cfm) 14,000 3.79 4.28 4.86 5.48 6.11 16,000 5.37 5.86 6.47 7.12 7.80 18,000 7.37 7.84 8.45 9.14 9.86 20,000 9.81 10.26 10.87 11.57 12.32...
  • Page 31 Table 25 — Component Pressure Drops (in. wg) SIZE 030-050 UNITS AIRFLOW (cfm) COMPONENT 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000 ECONOMIZER 0.06 0.09 0.12 0.16 0.20 0.25 0.30 0.35 FILTERS 30% Pleated (2-in.) 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03...
  • Page 32 NOTES: shown in the Motor Limitations table will not result in nuisance trip- 1. Extensive motor and electrical testing on the Carrier units has ping or premature motor failure. Unit warranty will not be affected. ensured that the full horsepower range of the motor can be utilized 2.

  • Page 33: Controls Quick Start

    See the Economizer Options section on page 34 for addi- CONTROLS QUICK START tional economizer option configurations. The following section will provide a quick user guide to setting See the Exhaust Options section on page 34 for addition up and configuring the P Series units with ComfortLink con- exhaust option configurations.

  • Page 34: Economizer Options

    Economizer Options Exhaust Options  Under the Configuration ECON submenu, the following set The following exhaust options should be configured. points should be configured: EXHAUST TYPE EC.EN Economizer Enabled? High- Modulating UNIT Capacity Return EC2.E Econ Act.2 Installed? Power Power Exhaust Exhaust EC.MN...

  • Page 35: Set Clock On Vfd (If Installed)

      Configuration BP.CF=5 (Return/Exhaust — Fan change the parameter setting. Press OK (SOFT KEY 2) to Tracking Control) save the configuration and return to the Clock Set menu.  Use UP or DOWN keys to highlight SET DATE and press Under Configuration BP, the following configuration may be adjusted:...

  • Page 36: Service Test

    The first schedule is now complete. If a second schedule is immediately turn off the compressors and 5 seconds later the con- troller would honor the requested heat stages. needed, such as for weekends or holidays, scroll down and repeat the entire procedure for period 2 (PER.2). If addi- However, it is important to note that the user can leave a Ser- tional schedules are needed, repeat the process for as many vice Test mode to view any of the local display menus (Run...
  • Page 37 Table 29 — Service Test ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS TEST Service Test Mode ON/OFF MAN_CTRL STOP Local Machine Disable YES/NO UNITSTOP config S.STP Soft Stop Request YES/NO SOFTSTOP forcible FAN.F Supply Fan Request YES/NO SFANFORC forcible INDP TEST INDEPENDENT OUTPUTS HUM.R...

  • Page 38: Humidi-Mizer System

    The controller then keeps track of the valve’s position for normal ® Humidi-MiZer System operation. During this calibration phase, a light ratcheting sound In the Humidi-MiZer (HMZR) sub-menu, it will be possible to may be heard and will serve as proof of valve operation and clo- control and calibrate the Humidi-MiZer modulating valves sure.

  • Page 39: Heating

    ON. To manually exercise this valve without an active Circuit THIRD PARTY CONTROL  B compressor, see the section titled Service Test  Thermostat HMZR RHV. To view the actual valve position at any time,   use the Outputs menu (Outputs COOL RHV).

  • Page 40: Demand Limit Control

    If the switch is open, the economizer will be commanded to the Demand Limit Control IAQ Demand Vent Minimum Position. If the outdoor flow sta- The term demand limit control refers to the restriction of the tion is installed and outdoor air cfm can be read, the economiz- machine’s mechanical cooling capacity to control the amount er will move to the IAQ Demand Vent Minimum Flow CFM of power that a machine may use.

  • Page 41: Controls Operation

    CONTROLS OPERATION IQ.A.F = 0 IAQ analog sensor input cannot start the sup- ply fan Modes IQ.A.F = 1 IAQ analog sensor input can start the supply The ComfortLink controls operate under a hierarchy of com- fan in occupied mode only mand structure as defined by three essential elements: the Sys- IQ.A.F = 2 IAQ analog sensor input can start the supply...
  • Page 42  SYSTEM MODES (OPERATING MODES SYS.M) HVAC Mode — SHUTTING DOWN (2) The unit is transitioning from a mode to the OFF mode. System Mode Off HVAC Mode — SOFTSTOP REQUEST (3) When the system mode is OFF, all outputs are to be shut down and no machine control is possible.
  • Page 43 Unit not in factory System Mode = test AND fire-smoke OFF? control mode is Fire- alarming? System Smoke Mode Control Inputs -> FIRE -> HVAC Mode = OFF Inputs -> FIRE -> Inputs -> FIRE -> FSD in alarm? (Disabled) PRES in alarm? EVAC in alarm? HVAC Mode = OFF...

  • Page 44: Unit Configuration Submenu

    HVAC Mode — FIRE SHUT DOWN (19) HVAC Mode — HEATING DEHUMID (29) The unit has been stopped due to a fire shutdown input (FSD) The unit is operating in the Heating Dehumidification mode. from two or more of the fire control modes, purge, evacuation, Unit Configuration Submenu or pressurization.
  • Page 45 Unit Size (SIZE) Fan Fail Shuts Downs Unit (SFS.S) There are several unit sizes (tons) for the P Series control. Make When fan status monitoring is configured on, this configura- sure this configuration matches the size called out by the model tion will determine whether the unit should shut down on a number of the unit.

  • Page 46: Cooling Control

    an effect depending on the installed elevation of the unit. If the SETTING UP THE SYSTEM rooftop is installed at a particularly high altitude and enthalpy or   Machine Control Type (Configuration UNIT C.TYP) cfm are being calculated, set this configuration to the current ele- The most fundamental cooling control configuration is located vation of the installed rooftop.
  • Page 47 SUPPLY AIR RESET CONFIGURATION Reset Limit (LIMT) This configuration is used when RS.CF is set to 1 or 2. This Supply air reset can be used to modify the current cooling sup- configuration places a clamp on the amount of supply air reset ply air set point.
  • Page 48 Table 35 — Cooling Configuration ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT COOL COOLING CONFIGURATION A1.EN Enable Compressor A1 Enable/Disable CMPA1ENA Enable A2.EN Enable Compressor A2 Enable/Disable CMPA2ENA Enable A3.EN Enable Compressor A3 Enable/Disable CMPA3ENA Enable B1.EN Enable Compressor B1 Enable/Disable CMPB1ENA Enable...
  • Page 49 (dehumidification or reheat). The unit will immediately start a cir- capacity will continue to follow the values defined by Configu-     cuit B compressor when a Humidi-MiZer mode is initiated. ration COOL DS.AP and Configuration COOL DS.AD. MotorMaster Control? (M.M.) Dig Scroll Max Only OAT (DS.MO) The condenser fan staging control for the unit is managed di-...
  • Page 50  VAV Cool Mode Selection during the Occupied Period NOTE: There is a sub-menu at the local display (Run Status   (C.TYP = 1,2 and Operating Modes MODE OCC =ON) TRIP) that allows the user to see the exact trip points for both the heating and cooling modes without having to calculate them.
  • Page 51  Operating modes are under Operating Modes MODE. regardless of demand. This is not applicable to VAV control types (C.TYP=1 and 2) in the occupied period. As long as a LOW COOL mode is making progress in cooling the space, the control ITEM EXPANSION RANGE...
  • Page 52 The only configuration parameter for the SumZ algorithm is Table 37 — Run Status Mode Trip Helper   located at the local display under Configuration COOL Z.GN. See Table 35. ITEM EXPANSION UNITS POINT Capacity Threshold Adjust (Z.GN) TRIP MODE TRIP HELPER This configuration affects the cycling rate of the cooling stages UN.C.S...
  • Page 53 Next Stage EDT Decrease (ADD.R) available shortly after the control goes into an occupied mode (after a warm unoccupied mode). This variable represents (if adding a stage of cooling) how much the temperature should drop (in degrees) depending on Slow Change Cap Override (SLOW) the R.PCT calculation and exactly how much additional capac- With a rooftop unit, the design rise at 100% total unit capacity ity is to be added.
  • Page 54 Previous implementations of SumZ made static assumptions Mixed Air Temperature Calculation (MAT) about the actual size of the next capacity jump up or down. This The mixed-air temperature is calculated and is a function of the control uses a “rise per percent capacity” technique in the calcu- economizer position.
  • Page 55 DEMAND LIMIT CONTROL The following table illustrates the demand limiting (Run Sta-   COOL DEM.L) that will be in effect based on the logic Demand Limit Control may override the cooling algorithm and of the applied switches: clamp or shed cooling capacity during run time. The term De- mand Limit Control refers to the restriction of the machine ca- ...
  • Page 56 A redline command or loadshed command will stay in effect A and circuit B), the following logic is used: in order to add a until a Cancel redline or Cancel loadshed command is re- fan stage, the SCT of either circuit must be above SCT.H for ceived, or until the configurable Maximum Loadshed time 30 seconds and in order to subtract a stage, the SCT of both cir- (SH.TM) has elapsed.
  • Page 57 Fig. 7 — Condenser Fan Staging Sequence...
  • Page 58 Fig. 7 — Condenser Fan Staging Sequence (cont)
  • Page 59 Fig. 7 — Condenser Fan Staging Sequence (cont)

  • Page 60: Heating Control

    Heating Control Type (HT.CF) Heating Control The heating control types available are selected/configured The P Series ComfortLink controls offer control for five differ- with this variable. ent types of heating systems to satisfy general space heating re- quirements: 2-stage gas heat, 2-stage electric heat, multiple- 0 = No Heat stage gas heat, modulating gas heat, and hydronic heat.
  • Page 61 HEAT MODE SELECTION PROCESS TEMPERATURE DRIVEN HEAT MODE EVALUATION There are two possible heat modes that the control will call out This section discusses the technique for selecting a heating mode for heating control: HVAC Mode = LOW HEAT and HVAC based on temperature.
  • Page 62 Demand Level Low Heat Off Offset (L.H.OF) Table 42 — Mode Trip Helper Table This is the heating set point offset above [the heating set point ITEM EXPANSION UNITS CCN POINT minus L.H.ON] at which point the Low Heat mode ends. TRIP MODE TRIP HELPER To enter into a LOW HEAT mode, if the controlling tempera-...
  • Page 63 MODULATING GAS HEAT CONTROL (HT.CF = 3 AND NOTE: The PID values should be not be modified without ap- proval from Carrier. HT.ST = 3, 4, OR 5)   Freeze Status Switch Logic (Inputs GEN.I...
  • Page 64 It is not used on SCR electric heat units. NOTE: The PID values should not be modified without approval from Carrier. Limit Switch High Temp (SW.H.T) This configuration is the temperature limit above which stages of heat will be shed.
  • Page 65 staging patterns. Since each stage has a range of capacities, and the capacities of some stages overlap, the control selects the IMPORTANT: When gas or electric heat is used in a VAV highest stage with sufficient minimum capacity. application with third party terminals, the HIR relay output must be connected to the VAV terminals in the system in order Similarly, as the modulating gas control desired capacity drops, to enforce a minimum heating cfm.
  • Page 66 Table 47 — Staged Gas Heat Control Steps (HT.ST = 0) RELAY OUTPUT Heat 1 Heat 2 Heat 3 Heat 4 Heat 5 Heat 6 CAPACITY STAGE MBB-RLY8 MBB-RLY7 SCB-RLY1 SCB-RLY2 SCB-RLY3 SCB-RLY4 IGC1 MGV1 IGC2 MGV2 IGC3 MGV3 Table 48 — Staged Gas Heat Control Steps (HT.ST = 1) RELAY OUTPUT Heat 1 Heat 2...
  • Page 67 Table 52 — Modulating Gas Heat Control Steps (HT.ST = 5) RELAY OUTPUT CAPACITY Heat 1 Heat 2 Heat 3 Heat 4 Heat 5 Heat 6 STAGE MBB-RLY8 TR1-CR SCB-RLY1 SCB-RLY2 SCB-RLY3 SCB-RLY4 IGC2 MGV2 IGC1 MGV1 IGC3 MGV3 OFF/ON* OFF/ON* OFF/ON* OFF/ON*...
  • Page 68 Installing a New Sensor start-up sequence, powers the SC30, sets the induced-draft mo- Procure a duct-mount temperature sensor (Carrier P/N tor speed, and provides the main gas valve high fire input. 33ZCSENPAT or equivalent 10,000 ohms at 25C NTC [nega- When the start-up sequence is complete, the TR1 checks the tive temperature coefficient] sensor).

  • Page 69: Static Pressure Control

    counteract this low supply-air temperature. This is referred to Recovery from a tempering mode (MODETEMP) will occur as the tempering mode. when the EDT rises above the trip point. On any change in HVACMODE, the tempering routine will re-assess the temper- Setting up the System ing set point which may cause the control to continue or exit The relevant set points for tempering are located at the local...
  • Page 70 OPERATION FOR CV Static Pressure High Range (SP.HI) This is the maximum static pressure that the sensor will mea- On CV units equipped with a VFD (staged air volume) when sure. Commonly, this will be 5 in. wg. The ComfortLink con- SP.CF, SP.SV, and SP.S are configured, the ComfortLink con- trols will map this value to a 20 mA sensor input.
  • Page 71 As the system the existing settings before making changes, and seek technical operates, if the most open damper opens more than 90%, the assistance from Carrier before making significant changes to system recalculates the pressure reduction variable and Con- these factors.

  • Page 72: Fan Status Monitoring

    PL34, which is located in the supply fan com-  FLT.S partment. See Carrier accessory literature for more details. For Monitoring of the filter status switch is disabled in the Service any unit with a factory-installed duct static pressure sensor, it is Test mode and when the supply fan is not commanded on.
  • Page 73 • Return air humidity sensor SAT has not decreased by S.CHG degrees F SAT_SET/2 seconds after opening the economizer at least EC.ST%, • Outside airflow control taking into account whether the entire movement has NOTE: All these options require the CEM. occurred within the range 0-ET.MN%.
  • Page 74 the outside air temperature will be compared to the return-air EC.DT WAITING temperature to disallow free cooling as shown in Table 63. S.VFD 20.0% TORQ 17.5% Table 63 — Differential Dry Bulb Cutoff Control ECN.P DDB.C OAT/RAT DDBC EC2.P E.SEL (ECON_SEL) (EC_DDBCO) Comparison (DDBCSTAT)
  • Page 75 T24 Econ Move SAT Change (S.CHG) Excess Air CFM (X.CFM) The minimum amount (in degrees F) SAT is expected to The max allowed excess air in CFM. Used to detect excess out- change based on economizer position change of T24ECSTS side air.
  • Page 76 Table 64 — Economizer Configuration Table ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT EC.EN Economizer Installed? Yes/No ECON_ENA EC2.E Econ.Act.2 Installed? Yes/No ECON_TWO EC.MN Economizer Min.Position 0 to 100 ECONOMIN EC.MX Economizer Max.Position 0 to 100 ECONOMAX E.TRM Economzr Trim For SumZ ? Yes/No ECONTRIM E.SEL...
  • Page 77 ECONOMIZER OPERATION ECONOMIZER CHANGEOVER SELECT (E.SEL) There are four potential elements which are considered concur- The control is capable of performing any one of the following rently which determine whether the economizer is able to pro- changeover types in addition to both the dry bulb lockout and vide free cooling: the standard external input: Dry bulb changeover (outside-air temperature qualification)
  • Page 78 learned through calibration is less than C.A.L1 or C.A.L2, an alert will occur and the actuator will not function. NOTE: This configuration does not typically need adjustment. It is configurable for the small number of jobs which may require a custom solution or workaround.
  • Page 79 If all of the above conditions are satisfied, Unoccupied Econo- Economizer Minimum Flow Deadband (O.C.DB) mizer Free Cooling will start when both of the following con- This option defines the deadband of the cfm control logic. ditions are true: The configurable deadband is added to the economizer’s {SPT >...

  • Page 80: Building Pressure Control

    Table 65 — Economizer Run Status Table ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS ECN.P Economizer Act.Curr.Pos. 0 to 100 ECONOPOS EC2.P Economzr 2 Act.Curr.Pos. 0 to 100 ECON2POS ECN.C Economizer Act.Cmd.Pos. 0 to 100 ECONOCMD forcible ACTV Economizer Active ? YES/NO ECACTIVE DISA...
  • Page 81 Table 66 — Building Pressure Configuration ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT BUILDING PRESS. CONFIGS BP.CF Building Press. Config 0 to 5 BLDG_CFG BP.S Building Pressure Sensor Enable/Disable BPSENS Disable* BP.R Bldg. Press. (+/-) Range 0.10 to 0.25 " H2O BP_RANGE 0.25 BP.SP...
  • Page 82 BP.CF = 1 (Constant Volume 2-Stage Control) NOTE: Do not change values of PID set point without approval from Carrier. Two exhaust fan relays will be turned on and off based on econo- mizer position to maintain building pressure control. The two trip BP.CF = 4 (High-Capacity Exhaust Control)

  • Page 83: Smoke Control Modes

      (Outputs FANS P.E.1) and a second power exhaust relay NOTE: These configurations are used only if Fan Tracking Learn-   (Outputs FANS P.E.2) which controls a single speed fan ing is enabled. When Fan Tracking Learning is enabled, the con- which is equal in capacity to the VFD running at full speed.

  • Page 84: Indoor Air Quality Control

    Each mode must be energized individually on discrete inputs Indoor Air Quality Control and the corresponding alarm is initiated when a mode is acti- The indoor air quality (IAQ) function will admit fresh air into vated. The fire system provides a normally closed dry contact the space whenever space air quality sensors detect high levels closure.
  • Page 85 and EC.MN as shown in Fig. 13. The relationship is a linear re- SETTING UP THE SYSTEM lationship but other non-linear options can be used. The damp- The IAQ configuration options are under the Local Display er position will never exceed the bounds specified by IAQ.M ...
  • Page 86 AQ.S.R EC.MN) IQ.R.L) This is the fully occupied minimum economizer position. This is the reference that will be used with a to non-Carrier   IAQ Demand Vent Min Pos. (Configuration IAQ sensor that may have a different characteristic curve. It ...

  • Page 87: Humidification

    There are three set point configurations: OQ.R.H) O.C.MN — Econ OACFM DCV Min Flow This is the reference that will be used with a non-Carrier OAQ O.C.MX — Econ OACFM DCV Max Flow sensor that may have a different characteristic curve. It rep- O.C.DB —...

  • Page 88: Dehumidification And Reheat

    Table 68 — Humidity Configuration ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT HUMD HUMIDITY CONFIGURATION HM.CF Humidifier Control Cfg. 0 to 4 HUMD_CFG HM.SP Humidifier Setpoint 0 to 100 HUSP H.PID HUMIDIFIER PID CONFIGS HM.TM Humidifier PID Run Rate 10 to 120 HUMDRATE HM.P Humidifier Prop.
  • Page 89 SETTING UP THE SYSTEM Dehumidification Sensor (D.SEN) The sensor can be configured for the following settings: The settings for dehumidification can be found at the local dis-  play at Configuration DEHU. See Table 70. • D.SEN = 1 — Initiated by return air relative humidity sensor. Dehumidification Configuration (D.SEL) •...

  • Page 90: Humidi-Mizer® Adaptive Dehumidification

    Dehumidity RH Set Point (D.RH.S) can result in overcooling of the space. To alleviate this, re- heat is added to raise the leaving air temperature to a Vent, This is the dehumidification relative humidity trip point. Cool or Heat set point. The reheat will control the leaving Dehumidify RH Deadband (DH.DB) air to a Vent, Cool to Heat supply air temperature.
  • Page 91 Dehumidification Configuration (D.SEL) OPERATION The dehumidification configuration for Humidi-MiZer is Mode Qualifications D.SEL = 4 (DH – HUMDZR). An HVAC: Off, Vent, Cool, or Heat mode must be in effect to Dehumidification Sensor (D.SEN) launch a Humidi-MiZer mode. The sensor can be configured for the following settings: Sensor Failure •...
  • Page 92 Heating Dehumidification Reheat Mode Cool Set Point (D.C.SP COOL) in order to meet the latent load and reheat the air to the required cooling or reheat set point. There This mode is used when dehumidification is required and heat-  ...

  • Page 93: Temperature Compensated Start

    SETTING UP THE SYSTEM It is possible to configure the ComfortLink controls to partici- The settings for temperature compensated start can be found in pate as an element of the Carrier Comfort Network (CCN) sys-  the local display under Configuration UNIT.

  • Page 94: Alert Limit Configuration

    CCN OAQ Broadcast (OAQ.B) SPT Override Enabled? (SPT.O) If this configuration is set to ON, the control will periodically If a space sensor is present, then it is possible to override an broadcast its outside air quality reading at a rate of once every unoccupied period by pushing the override button on the T55 30 minutes.

  • Page 95: Sensor Trim Configuration

    Doing so may If the outside-air temperature measured by the OAT thermistor impair or negatively affect the Carrier product warranty. is below the configurable OAT Low Alert Limit (OAT.L) then alert T316 will be generated.

  • Page 96: Discrete Switch Logic Configuration

    However, if a field-installed switch is used that is differ- This variable is used to adjust the limit switch temperature sen- ent from the Carrier switch, these settings may need adjustment. sor reading. The sensor reading can be adjusted ±10°F to match the actual measured temperature.

  • Page 97: Display Configuration

    This configuration defines the nominal motor voltage. This val- Carrier service engineering representative. ue must equal the value on the motor rating plate. This value sets the maximum drive output voltage supplied to the motor.
  • Page 98 Table 77 — Display Configuration ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT TEST Test Display LEDs ON/OFF TEST METR Metric Display ON/OFF DISPUNIT LANG Language Selection 0-1(multi-text strings) LANGUAGE PAS.E Password Enable ENABLE/DISABLE PASS_EBL Enable PASS Service Password 0000-9999 PASSWORD 1111 Table 78 —...

  • Page 99: Remote Control Switch Input

    A to the Carrier service engineering representative. suction line of circuit A. An additional thermistor in the suc- Remote Control Switch Input tion line allows the unit control to monitor suction superheat.

  • Page 100: Time Clock Configuration

      FRIDAY IN PERIOD (PER.X DAYS FRI) TIME CLOCK CONFIGURATION This variable is used to include or remove Friday from the This section describes each Time Clock menu item. Not every schedule. Each period is assigned an occupied on and off time. point will need to be configured for every unit.
  • Page 101   Daylight Savings Start Week (DS.ST ST.WK) Daylight Savings Stop Month (DS.SP SP.MN) This is the start week of the month for daylight savings. The This is the stop month for daylight savings time. The numbers week can be set from 1 to 5. 1 to 12 correspond to the months of the year (e.g., January = 1).

  • Page 102: Troubleshooting

    Current Alarms and Alarm History for any unresolved alarm TROUBLESHOOTING codes and correct. Verify Humidi-MiZer configuration settings The scrolling marquee display shows the actual operating con- are correct for the site requirements. If alarm conditions are cor- ditions of the unit while it is running. If there are alarms or rected and cleared, then operation of the compressors, fans, and there have been alarms, they will be displayed in either the cur- Humidi-MiZer valves may be verified by using the Service Test...
  • Page 103 Table 84 — Cooling Service Analysis PROBLEM CAUSE REMEDY Compressor and Fan Will Not Power failure. Call power company. Start. Fuse blown or circuit breaker tripped. Check CB1, Replace fuse or reset circuit breaker. CB2, and CB3. Disconnect off. Power disconnect. Compressor time guard to prevent short cycling.
  • Page 104 ® Table 85 — Humidi-MiZer Service Analysis PROBLEM CAUSE REMEDY Circuit B compressors unavailable Check alarm history for general cooling mode operation problems. See Table 84. Check for Circuit B compressors locked out. General Cooling Mode problem See Table 84. Check that a relative humidity sensor is connected and that the appropriate Humidi-MiZer relative humidity sensor not ...
  • Page 105 ® Table 85 — Humidi-MiZer Service Analysis (cont) PROBLEM CAUSE REMEDY Faulty wire connections Check that the valve wiring is properly connected from the valve, entering the control box and at the EXV board. EXV board malfunction Check alarm history for A169 (Expansion Valve Control Board Comm Failure). Valve is stuck open/closed Use Service Test to manually manipulate the valve position and confirm supply air temperature changes during operation.
  • Page 106 24 VOLTS DEFECTIVE 1 FLASH - INDOOR FAN DELAY BETWEEN FLASHING LED is IGC BOARD MODIFIED (HEATING) R & C ON J2? 2 FLASHES - OPENING OF LIMIT SWITCH 1. BLOWN 5 AMP FUSE 3 FLASHES - FLAME SENSOR 2. DEFECTIVE 24V TRANS. INDICATES FLAME WITH 3.
  • Page 107 Table 88 — 10K Thermistor vs Resistance (T55, T56, T58, OAT, SAT, RAT, CCT, LAT Sensors) (F) TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE (Ohms) (Ohms) (Ohms) (Ohms) 5,095 1,375 –25 196,453 25,396 4,984 1,350 –24 189,692 24,715 4,876 1,326 24,042 –23...
  • Page 108 Table 89 — 10K Thermistor vs Resistance (T55, T56, T58, OAT, SAT, RAT, CCT, LAT Sensor) (C) TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE (Ohms) (Ohms) (Ohms) (Ohms) –32 200,510 24,171 4,544 1,177 23,013 –31 188,340 4,370 1,140 21,918 –30 177,000 4,203...
  • Page 109 Table 91 — 5K Thermistor vs. Resistance (RGTA) (F) TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE (Ohms) (Ohms) (Ohms) (Ohms) –25 98,010 2,713 13,449 –24 94,707 2,655 13,084 –23 91,522 12,730 2,597 –22 88,449 2,542 12,387 –21 85,486 2,488 12,053 –20 82,627...
  • Page 110 Table 92 — 5K Thermistor vs. Resistance (RGTA) (C) TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE (Ohms) (Ohms) (Ohms) 7,855 1,158 –32 100,260 7,499 1,118 –31 94,165 7,161 1,079 –30 88,480 6,840 1,041 –29 83,170 6,536 1,006 –28 78,125 6,246 –27 73,580 5,971 –26...

  • Page 111: Transducer Troubleshooting

      Run Status VIEW EC.C.P Transducer Troubleshooting Displays the current economizer control point value (a target The electronic control uses 2 suction pressure transducers to value for air temperature leaving the evaporator coil location). measure the suction pressure of circuits A and B. The pressure/ voltage characteristics of these transducers are in shown in ...
  • Page 112 Table 93 — Pressure Transducer (psig) vs. Voltage (SSP-A, SSP-B) PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) 0.466 1.509 2.543 3.576 0.476 1.519 2.553 3.586 0.486 1.529 2.562 3.596 0.495...
  • Page 113 Table 94 — Discharge Pressure Transducer (psig) vs. Voltage PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) PRESSURE (PSIG) VOLTAGE DROP (V) 14.5 0.500 0.993 1.490 1.987 0.509 1.000 1.496 1.993 0.515 1.006 1.502 1.999 0.521...
  • Page 114 Table 94 — Discharge Pressure Transducer (psig) vs. Voltage (cont) PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE (PSIG) DROP (V) (PSIG) DROP (V) (PSIG) DROP (V) (PSIG) DROP (V) 2.483 2.992 3.501 4.010 2.489 2.998 3.507 4.016 2.495 3.004 3.513 4.022 2.502...
  • Page 115 Table 95 — Auto View of Run Status Display Table ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS VIEW AUTO VIEW OF RUN STATUS HVAC ascii string spelling out the hvac modes string OCC Occupied ? YES/NO OCCUPIED forcible MAT Mixed Air Temperature EDT Evaporator Discharge Tmp...
  • Page 116 Table 97 — Cooling Information Display Table ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS COOL COOLING INFORMATION C.CAP Current Running Capacity CAPTOTAL CUR.S Current Cool Stage COOL_STG REQ.S Requested Cool Stage CL_STAGE MAX.S Maximum Cool Stages CLMAXSTG DEM.L Active Demand Limit DEM_LIM forcible SUMZ...
  • Page 117 Slow Change Cap Override (SLOW) CCN/LINKAGE DISPLAY TABLE With a rooftop unit, the design rise at 100% total unit capacity is The CCN/Linkage display table provides information on unit generally around 30F. For a unit with 4 stages, each stage rep- linkage.

  • Page 118: Alarms And Alerts

    Table 100 — CCN/Linkage Display Table ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS LINK CCN - LINKAGE MODE Linkage Active - CCN ON/OFF MODELINK L.Z.T Linkage Zone Control Tmp L.C.SP Linkage Curr. Cool Setpt LCSP L.H.SP Linkage Curr. Heat Setpt LHSP Table 101 —...
  • Page 119 Table 104 — Alert and Alarm Codes ALARM OR ALERT DESCRIPTION ACTION TAKEN BY CONTROL RESET METHOD NUMBER CktA, Oil Return Not Reliable With Only One Comp Circuit shut down Automatic T048 Available CktB, Oil Return Not Reliable With Only One Comp Circuit shut down Automatic T049...
  • Page 120 Table 104 — Alert and Alarm Codes (cont) ALARM OR ALERT DESCRIPTION ACTION TAKEN BY CONTROL RESET METHOD NUMBER T170 Compressor Expansion Board Comm Failure Compressors A3 and B3 disabled Automatic A171 Staged Gas Control Board Comm Failure Staged gas control disabled Automatic T172 Control Expansion Module Comm Failure...
  • Page 121 Table 104 — Alert and Alarm Codes (cont) ALARM OR ALERT DESCRIPTION ACTION TAKEN BY CONTROL RESET METHOD NUMBER A620 Economizer 2 Actuator Out of Calibration Alarm only Automatic A621 Economizer 2 Actuator Comm Failure No IGV functions Automatic T622 Economizer 2 Actuator Control Range Increased Alert only Automatic...
  • Page 122 If the CSB is always detecting current, then verify that the the value recorded on any previous high pressure switch trip, the upper horizontal portion of the compressor operating envelope compressor is on. If the compressor is ON, check the con- (see Fig.
  • Page 123 SST (F) Fig. 18 — High Pressure/SCT Alarm Upper Envelope T076 (Outside Air Relative Humidity Sensor Failure) T092 (Circ A Suction Press Transducer Failure) T093 (Circ B Suction Press Transducer Failure)   Failure of this sensor (Inputs REL.H OA.RH) will disable any elements of the control which requires its use.
  • Page 124 compressor on the circuit is shut down, at which time the circuit circuit going off entirely, not reducing capacity and recovering. will be shut down with alert (T120, T121). Therefore it is possible that multiple P126 and P127 alerts may be stored in alarm history but not broadcast.
  • Page 125 T153 (Real Time Clock Hardware Failure) A175 (Supply Fan VFD Communication Failure) The RTC clock chip on the MBB is not responding. Recovery The supply fan is disabled until communication with the sup- is automatic but typically board replacement may be necessary. ply fan VFD is re-established.
  • Page 126 either a faulty sensor, wiring error, or damaged input on the T310 (Supply Duct Pressure Below Limit) CEM control board. If the unit is a VAV unit with a supply duct pressure sensor and the   T246 (Supply Air Cfm Sensor Failure) measured supply duct static pressure (Pressures AIR.P SP) is...
  • Page 127 A406 (Pressurization Emergency Mode) actuator. Reset is automatic on economizers with only one actua- tor. Manual reset is required on economizers with two actuators. If the pressurization input on the CEM is energized, a pressuriza- tion mode occurs which flags an alarm. This mode attempts to T421 (Thermostat Y2 Input On without Y1 On) raise the pressure of a space to prevent smoke infiltration from If Y2 is on and Y1 is off, then this alert condition is initiated.
  • Page 128 for failure may be a faulty current sensor board, incorrect wir- T617 Econ 1 (Outside) Damper Stuck Or Jammed ing, or a damaged input on the MBB control board. The actuator is no longer moving and the actual position is T610 (Economizer Actuator Out of Calibration) greater than or less than E.GAP% of the commanded position A620 (Economizer 2 Actuator Out of Calibration)

  • Page 129: Major System Components

    VFDs, IGVs, hydronic valves, and hu- ries. See Table 112. The circuit breakers for the low voltage con- midifier valves. The MBB also interfaces with the Carrier trol transformers, interface connection for the Carrier Comfort Comfort Network ®...
  • Page 130 Fig. 19 — Typical Power Schematic (Sizes 040-075 Shown)
  • Page 131 Fig. 20 — Main Base Board Input/Output Connections...
  • Page 132 Fig. 21 — RXB, EXB, CEM, SCB Input/Output Connections...
  • Page 133 Fig. 22 — Typical Gas Heat Unit Control Wiring (48P030-100 Units Shown)
  • Page 134 Fig. 23 — Typical Electric Heat Wiring (50P030-100 Units Shown)
  • Page 135 Fig. 24 — Typical Power Wiring (115-V)
  • Page 136 Fig. 25 — Typical Gas Heat Section (Size 030-050 Units Shown)
  • Page 137 Fig. 26 — Typical Modulating Gas Heat Section (Size 030-050 Units Shown)
  • Page 138 Fig. 27 — Component Arrangement (Size 030,035 Units)
  • Page 139 Fig. 28 — Component Arrangement (Size 040-075 Units)
  • Page 140 Fig. 29 — Component Arrangement (Size 090,100 Units)
  • Page 141 High Voltage — Communications RED LED - STATUS YELLOW LED - GREEN LED - LEN (LOCAL EQUIPMENT NETWORK) CCN (CARRIER COMFORT NETWORK) INSTANCE JUMPER (SET TO 1) CEPL130346-01 HK 50AA029 CE BO 430346 STATUS Fig. 30 — Main Base Board (MBB)
  • Page 142 Table 105 — Main Control Board (MBB) Inputs and Outputs CONNECTOR POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME PIN NO. INPUTS IGCFAN IGC IFO input Switch Input J6, 3-4 Fire Shutdown Switch, RA/SA Smoke Detector Switch Input J6, 5-6 Thermostat ‘G’...
  • Page 143 Fig. 31 — Economizer Control Board (EXB) and Rooftop Control Board (RXB) Table 106 — Rooftop Control Board (RXB) Inputs and Outputs CONNECTOR POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME PIN NO. INPUTS RMTIN Remote Occupancy Switch Switch Input J4, 1-2 ENTH...
  • Page 144 Table 107 — Economizer Control Board (EXB) Inputs and Outputs CONNECTOR POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME PIN NO. INPUTS Plenum Pressure Switch Switch Input J4, 1-2 Not Used — — J4, 3-4 SACFM Supply Air CFM 4-20 Transducer (4-20 mA) J5, 1-3 RACFM...
  • Page 145 CEBD430351 STATUS TEST 2 GREEN LED - ADDRESS RED LED - STATUS LEN (LOCAL EQUIPMENT NETWORK) DIP SWITCH (ALL ON) Fig. 33 — Controls Expansion Board (CEM) Table 109 — Control Expansion Module (CEM) Inputs and Outputs POINT NAME POINT DESCRIPTION TYPE OF I/O I/O POINT NAME CONNECTOR PIN NO.
  • Page 146 Communication CCN - Communication SHIELD Ground Ground Local Equipment Network Communication Carrier Comfort Network Communication TB202 - FIELD CONNECTIONS CEM (in Main Control Box) Not Used — Not Used — Space Humidity 4-20 mA (-) 4 to 20 mA signal...
  • Page 147 Table 113 — IGC Board Inputs and Outputs CONNECTOR MODE POINT NAME POINT DESCRIPTION PIN NO. Run Status INPUTS Service Test 24 Volt Power Supply RT,C Temperature Pressures Heat Demand Setpoints Alarm Status Inputs Outputs Limit Switch ESCAPE ENTER Configuration Rollout Switch Time Clock Operating Modes...
  • Page 148 Terminal X1 LEN connection from ComfortLink Fig. 35 — VFD Wiring section so that the air can either be discharged horizontally out Table 116 — VFD Terminal Designations the back of the unit or discharged through the return air section of the economizer.

  • Page 149: Accessory Control Components

    Table 117 — Thermistors and Unit Operation Control Pressure Transducers SENSOR DESCRIPTION AND LOCATION PART NO. Thermistors Cooling Coil Thermistor input. Provided with factory-option hydronic heat. Located on face of the hydronic HH79NZ039 (4) heating coil. Consists of 4 thermistors wired into a 2x2 array. Limit Switch Thermistor.
  • Page 150 • Custom curves (a combination of an enthalpy/dewpoint Yellow LED curve and a dry bulb curve). The MBB has one yellow LED. The Carrier Comfort Net- The units are equipped as standard with an outdoor air enthalpy work ® (CCN) LED will blink during times of network commu- control.

  • Page 151: Service

    HVAC EQUIPMENT COMFORT CONTROLLER AIR DISTRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV) LEGEND — Carrier Comfort Network ® — ComfortLink™ Controls — Digital Air Volume HVAC — Heating, Ventilation, and Air Conditioning — Terminal Control Unit Fig. 37 — CCN System Architecture...
  • Page 152 COMPRESSORS RETURN AIR FILTERS Sizes 030,035 Access to these filters is through the door marked FILTER SECTION. Access to the compressors is below the unit control box. Sizes 040-060 UNIT CONTROL BOX Access to the compressors is through the doors on the condens- Access to this component is through the doors marked ELEC- er end of the unit.
  • Page 153 LIMIT SWITCH NO. 1 FLUE OUTLET SECTION 2 GAS VALVE FLUE FLUE OUTLET OUTLET SECTION 3 SECTION 1 GAS VALVE GAS VALVE Fig. 45 — Burner Section Detail — 2-Stage and Staged Gas Units LIMIT SWITCH NO. 2 Fig. 43 — Gas Section Detail, Sizes 055-100 (High Heat) PRESSURE 0.120/0.140...

  • Page 154: Adjustments

    25% OUTDOOR-AIR DAMPER Access to adjust the damper is through the hoods. Remove fil- CERAMIC ters to gain access into unit to adjust linkage arms. BAFFLE MODULATING POWER EXHAUST DAMPER MOTOR CLIP The modulating power exhaust damper motor is located in the return-air end of the unit.
  • Page 155 Adjust motor plate so belts can be installed without stretching over the grooves of the pulley. (Forcing the belts can result in uneven belt stretching and a mismatched set of belts.) Before tensioning the belts, equalize belt slack so that it is on the same side of the belt for all belts.

  • Page 156: Cleaning

    TRANSDUCER INPUT OUTPUT OUTPUT PART RANGE USAGE RANGE AT 0 IN. WG NUMBER (in. wg) Supply Duct/ HK05ZG019 0 to 5 4 to 20 mA 4 mA Air Foil Fan Cfm Forward HK05ZG020 0 to 1 4 to 20 mA 4 mA Curved Fan Cfm...

  • Page 157: Lubrication

    Clean screens with steam or hot water and a mild detergent. Do Amount of refrigerant charge is listed on unit nameplate. Refer to not use disposable filters in place of screens. Carrier GTAC II; Module 5; Charging, Recovery, Recycling, and Reclamation section for charging methods and procedures. Lubrication...
  • Page 158 30 Ton STD CAP CIRCUIT A Charging Chart a48-8518 All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 159 30 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 160 35 Ton STD CAP CIRCUIT A Charging Chart a48-8522 All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 161 40 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 162 40 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 163 50 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 164 50 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 165 55 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 166 55 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 167 60 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 168 60 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 169 70 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 170 70 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 171 75 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 172 75 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 173 90 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 174 90 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 175 100 Ton STD CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.
  • Page 176 100 Ton HIGH CAP CIRCUIT A Charging Chart All Compressors on a Circuit Must be Operating All Outdoor Fans Must be Operating SST= 60 F SST= 45 F SST= 30 F Reduce Charge if Above Curve Add Charge if Below Curve Outdoor Air Temperature (deg F) Fig.

  • Page 177: Gas System Adjustment (48P Only)

    To Use the Cooling Charging Chart Remove -in. pipe plug from manifold or gas valve pres- sure tap connection. Install a suitable pressure-measuring Use the outdoor air temperature, saturated suction temperature device. and saturated condensing temperature (available on the Com- fortLink display), and find the intersection point on the cooling Switch main gas valve to ON position.

  • Page 178: Moisture/Liquid Indicator

    Yellow — moisture above 130 ppm (wet) Change filter driers at the first sign of moisture in the system. See Carrier Charging Handbook for more information. IMPORTANT: Unit must be in operation at least 12 hours before moisture indicator can give an accurate reading.

  • Page 179: Temperature Relief Devices

    Control Circuit, 24 V This control circuit is protected against overcurrent by two 10 amp and four 3.2 amp circuit breakers. Breakers can be reset. If a breaker trips, determine cause of trouble before resetting. Gas Heat (48P Only) LIMIT SWITCHES The maximum supply-air temperature is controlled by a limit switch located in the gas section.

  • Page 180: Appendix A - Local Display Tables

    APPENDIX A — LOCAL DISPLAY TABLES Table A — MODE — RUN STATUS ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS PAGE NO. VIEW AUTO VIEW OF RUN STATUS HVAC ascii string spelling out the hvac modes string 111,115 OCC Occupied ? YES/NO OCCUPIED...
  • Page 181 APPENDIX A — LOCAL DISPLAY TABLES Table A — MODE — RUN STATUS (cont) ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS PAGE NO. VFDS VFD INFORMATION S.VFD SUPPLY FAN VFD (VFD 1) S.VFDSPD VFD1 Actual Speed % VFD1_SPD S.VFDRPM VFD1 Actual Motor RPM VFD1RPM S.VFDFREQ...
  • Page 182 APPENDIX A — LOCAL DISPLAY TABLES Table B — MODE — SERVICE TEST ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS PAGE NO. TEST Service Test Mode ON/OFF MAN_CTRL STOP Local Machine Disable YES/NO UNITSTOP config S.STP Soft Stop Request YES/NO SOFTSTOP forcible...
  • Page 183 APPENDIX A — LOCAL DISPLAY TABLES Table C — MODE — TEMPERATURES ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS AIR.T AIR TEMPERATURES  CTRL CONTROL TEMPS   CTRL Evaporator Discharge Tmp   CTRL Leaving Air Temperature  ...
  • Page 184 APPENDIX A — LOCAL DISPLAY TABLES Table F — MODE — INPUTS ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS GENERAL INPUTS GEN.I  FLT.S Filter Status Input DRTY/CLN FLTS forcible  G.FAN Fan Request From IGC ON/OFF IGCFAN  REMT Remote Input State RMTIN...
  • Page 185 APPENDIX A — LOCAL DISPLAY TABLES Table G — MODE — OUTPUTS ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS FANS FANS  S.FAN Supply Fan Relay ON/OFF SFAN  S.VFD Supply Fan VFD Speed 0-100 SFAN_VFD  E.VFD Exhaust Fan VFD Speed 0-100 EFAN_VFD ...
  • Page 186 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. UNIT UNIT CONFIGURATION C.TYP Machine Control Type 1 to 4 (multi-text strings) CTRLTYPE 33, 41, 44-47, 49-52, 56, 60- 62, 80, 88, 90, 99 SIZE Unit Size (30-100)
  • Page 187 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION (cont) ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. SG.CFLAT.L LAT Limit Config 0 to 20 HTLATLIM 60, 63, 64, 67 SG.CFLIM.M Limit Switch Monitoring? Yes/No HTLIMMON 60, 63, 64, 65, 67 SG.CFSW.H.T Limit Switch High Temp...
  • Page 188 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION (cont) ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. ACTCC.A.L2 Ecn2 Ctrl Angle Lo Limit 0 to 90 ECN2CALM 76, 78 T.24.C TITLE 24 CONFIGS T.24.CLOG.F Log Title 24 Faults Yes/No T24LOGFL 74, 76...
  • Page 189 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION (cont) ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. L.C.ON Dmd Level Lo Cool On -1 to 2 DMDLCON 50, 51, 61 H.C.ON Dmd Level(+) Hi Cool On 0.5 to 20.0 DMDHCON 50, 51, 61...
  • Page 190 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION (cont) ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. CCN CONFIGURATION CCNA CCN Address 1 to 239 CCNADD CCNB CCN Bus Number 0 to 239 CCNBUS BAUD CCN Baud Rate 1 to 5 (multi-text strings) CCNBAUDD 3...
  • Page 191 APPENDIX A — LOCAL DISPLAY TABLES Table H — MODE — CONFIGURATION (cont) ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT PAGE NO. S.VFD SUPPLY FAN VFD CONFIG N.VLT VFD1 Nominal Motor Volts 0 to 999 Volts VFD1NVLT 460* 97, 98 N.AMP VFD1 Nominal Motor Amps 0 to 999...
  • Page 192 APPENDIX A — LOCAL DISPLAY TABLES Table J — MODE — OPERATING MODES ITEM EXPANSION RANGE UNITS CCN POINT SYS.M ascii string spelling out the system mode string HVAC ascii string spelling out the hvac modes string CTRL ascii string spelling out the “control type” string MODE MODES CONTROLLING UNIT...

  • Page 193: Appendix B - Ccn Tables

    All P Series units with ComtfortLink controls have a port for inter- In the following tables, the structure of the tables that are used with the Service Tool as well as the names and data that are in- face with the Carrier Comfort Network ® (CCN) system. On TB3, cluded in each table are shown.
  • Page 194 APPENDIX B — CCN TABLES Table L — STATUS DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS ECONOMZR Economizer Act.Curr.Pos. ECONOPOS Economizer 2 Act.Curr.Pos. ECON2POS Economizer Act.Cmd.Pos. ECONOCMD forcible Economizer Active ? ECACTIVE Economizer Control Point ECONCPNT Outside Air Temperature forcible...
  • Page 195 APPENDIX B — CCN TABLES Table L — STATUS DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS MODEDISP (cont) IAQ pre-occ purge active On/Off MODEIQPG Linkage Active - DAV On/Off MODELINK Mech.Cooling Locked Out On/Off MODELOCK HVAC Mode Numerical Form number MODEHVAC...
  • Page 196 APPENDIX B — CCN TABLES Table L — STATUS DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS UOUTPUTS FANS Supply Fan Relay On/Off SFAN Supply Fan Commanded % 0-100 SFAN_VFD Supply Fan Request Yes/No SFANFORC forcible Exhaust Fan Commanded % 0-100 EFAN_VFD...
  • Page 197 APPENDIX B — CCN TABLES Table L — STATUS DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS VFD_DATA (cont) VFD1 DI4 State Open/Close VFD1_DI4 VFD1 DI5 State Open/Close VFD1_DI5 VFD1 DI6 State Open/Close VFD1_DI6 VFD1 AI1 (% of range) VFD1_AI1 VFD1 AI2 (% of range) VFD1_AI2...
  • Page 198 APPENDIX B — CCN TABLES Table N — CONFIG TABLES TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT BRODEFS CCN Time/Date Broadcast Off/On CCNBC CCN OAT Broadcast Off/On OATBC CCN OARH Broadcast Off/On OARHBC CCN OAQ Broadcast Off/On OAQBC Global Schedule Broadcst Off/On GSBC Daylight Savings Start:...
  • Page 199 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT ALLM SPT lo alert limit/occ -10-245 SPLO SPT hi alert limit/occ -10-245 SPHO SPT lo alert limit/unocc -10-245 SPLU SPT hi alert limit/unocc -10-245 SPHU EDT lo alert limit/occ...
  • Page 200 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT BP__ (cont) BP2 Cntrl Angle Lo Limit 0-90 BP2_CALM COOL Enable Compressor A1 Enable/Disable CMPA1ENA Enable Enable Compressor A2 Enable/Disable CMPA2ENA Enable Enable Compressor A3 Enable/Disable...
  • Page 201 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT DLVT (cont) Dmd Level(-) Lo Cool Off 0.5 to 2.0 DMDLCOFF Cool Trend Demand Level 0.1 to 5.0 CTRENDLV Heat Trend Demand Level 0.1 to 5.0 HTRENDLV Cool Trend Time...
  • Page 202 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT HEAT (cont) Heat Rise dF/sec Clamp 0.05 to 0.2 HTSGRISE 0.06 LAT Limit Config 0 to 20 HTLATLIM Limit Switch Switch Monitoring? Yes/No HTLIMMON Limit Switch High Temp...
  • Page 203 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT SP__ Static Pressure Control Enable/Disable STATICFG Disable Staged Air Volume Control Enable/Disable STGAVCFG Disable Static Pressure Sensor Enable/Disable SPSENS Disable Static Press. Low Range -10 to 0 SP_LOW Static Press.
  • Page 204 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT TRIM Air Temp Lvg SF Trim -10 to 10 SAT_TRIM RAT Trim -10 to 10 RAT_TRIM OAT Trim -10 to 10 OAT_TRIM SPT Trim -10 to 10...
  • Page 205 APPENDIX B — CCN TABLES Table O — SERVICE-CONFIG TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME DEFAULT VFD_CFG VFD1 Nominal Motor Volts volts VFD1NVLT VFD1 Nominal Motor Amps amps VFD1NAMP VFD1 Nominal Motor Freq VFD1NFRQ VFD1 Nominal Motor RPM VFD1NRPM VFD1 Nominal Motor HPwr VFD1NPWR...
  • Page 206 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS ALARMS01 Active Alarm ascii ALARM_01 ------------------------ ascii Active Alarm ascii ALARM_02 ------------------------ ascii Active Alarm ascii ALARM_03 ------------------------ ascii Active Alarm ascii ALARM_04 ------------------------...
  • Page 207 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS COMPRESR (cont) CSB B3 Feedback Alarm Enable/Disable CSB_B3EN config Comp B3 Locked Out ? Yes/No CMPB3LOK Compressor B3 Strikes CMPB3STR Enable Compressor B3 Enable/Disable...
  • Page 208 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS EC_DIAG Economizer Active ? Yes/No ECACTIVE Conditions which prevent economizer being active: Econ Act. Unavailable? Yes/No ECONUNAV Econ 2 Act. Unavailable? Yes/No ECN2UNAV Enth.Switch Read High ?
  • Page 209 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS HUMIDITY Space Relative Humidity SPRH forcible Return Air Rel.Humidity RARH forcible Humidifier Relay HUMIDRLY Humidifier Act.Curr.Pos. HUMDRPOS Humidifier Command Pos. HUMDCPOS Humidifier Setpoint HUSP...
  • Page 210 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS OCCDEFME Current Day, Time and Date: ascii date and time TIMEDATE Occupancy Controlled By: ascii text OCDFTXT1 ascii text OCDFTXT2 ascii text OCDFTXT3...
  • Page 211 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS STRTHOUR Compressor A1 Run Hours hours HR_A1 config Compressor A2 Run Hours hours HR_A2 config Compressor A3 Run Hours hours HR_A3 config...
  • Page 212 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS T24_DIAG Economizer Installed ? Yes/No ECON_ENA config Econ.Act.2 Installed ? Yes/No ECON_TWO config Return Air Temperature forcible Air Temp Lvg Supply Fan Outside Air Temperature forcible Occupied?
  • Page 213 APPENDIX B — CCN TABLES Table P — MAINTENANCE DISPLAY TABLES (cont) TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS TESTFANS Fan Test Automatic? YES/NO FANAUTO Economizer Act.Cmd.Pos. ECONFANS Supply Fan Relay ON/OFF SFAN_TST Supply Fan Commanded % 0-100 SFVFDTST Power Exhaust Relay 1 ON/OFF...

  • Page 214: Appendix C - Unit Staging Tables

    APPENDIX C — UNIT STAGING TABLES Table R — ADAPTIVE CV STAGING SEQUENCE Table U — VAV DIGITAL COMPRESSOR STAGING (Sizes 030,035) SEQUENCE (Size 040) SEQUENCE SEQUENCE STAGE STAGE COMP Compressor Status COMP Compressor Status UNIT Capacity 48/50P 100% UNIT Capacity 48/50P 100% 23% to 47%...
  • Page 215 APPENDIX C — UNIT STAGING TABLES Table Y — VAV AND ADAPTIVE CV STAGING SEQUENCE (Sizes 090-100) SEQUENCE STAGE COMP Compressor Status UNIT Capacity 48/50P 100% 100% *Minimum load valve. Table Z — VAV (WITH DIGITAL COMPRESSOR) STAGING SEQUENCE (Sizes 090-100) SEQUENCE STAGE COMP...

  • Page 216: Appendix D - Vfd Information

    VFD is located in the supply fan section (030-050 size the drive. This can be accomplished by running the Carrier As- units) or mixing box section (055-100 size units) behind an ac- sistant through the VFD keypad (see START UP WITH THE cess door.
  • Page 217 APPENDIX D — VFD INFORMATION Table AB — VFD Parameters Configured by Carrier Assistant PARAMETER GROUP PARAMETER TITLE PARAMETER INDEX HVAC DEFAULT CARRIER DEFAULT Options COMM PROT SEL 9802 NOT SEL (0) LEN (6) EFB PROTOCOL ID 5301 0000 hex...
  • Page 218 APPENDIX D — VFD INFORMATION Table AE — VFD ComfortLink Control Variables CCN POINT CCN POINT PARAMETER GROUP PARAMETER TITLE PARAMETER INDEX SUPPLY FAN VFD EXHAUST FAN VFD Actual Signals FB STS WORD 1 VFD1STAT VFD2STAT Not Available SPEED (%) Not Available VFD1_SPD VFD2_SPD...
  • Page 219 Use the UP or DOWN keys to highlight Roof Top and press OK (SOFT KEY 2). VFD Modes c. The Carrier Assistant will ask “Is this a Hi E or Pre- The VFD has several different modes for configuring, operat- mium E motor?” : ing, and diagnosing the VFD.
  • Page 220 DOWN keys simultaneously. To restore the default factory set- To upload and store parameters in the control panel from the tings, select the Carrier application macro. VFD, perform the following procedure: Select MENU (SOFT KEY 2). The Main menu will be displayed.
  • Page 221 APPENDIX D — VFD INFORMATION Use the UP or DOWN keys to highlight DOWNLOAD Use the UP or DOWN keys to highlight DATE FORMAT TO DRIVE ALL and press SEL (SOFT KEY 2). and press SEL (SOFT KEY 2). Use the UP or DOWN keys The text “Restoring Parameters”...
  • Page 222 (not flashing), press RESET from the control panel or turn off start appearing. Replacement fans are available from Carrier. the power for 5 minutes. Depending on the value of parameter 1604 (FAULT RESET SELECT), digital input or serial com- To replace the main fan for frame sizes R1 through R4, per- munication could also be used to reset the drive.
  • Page 223 APPENDIX D — VFD INFORMATION To replace the internal enclosure fan for frame sizes R5 or R6, perform the following: Remove power from drive. Remove the front cover. Lift the fan out and disconnect the cable. Install the fan in reverse order. Restore power.
  • Page 224 UNDERLOAD UNDERLOAD CURVE. THERM FAIL Internal fault. The thermistor measuring the internal temperature of the drive is open or shorted. Contact Carrier. OPEX LINK Internal fault. A communication-related problem has been detected between the OMIO and OINT boards. Contact Carrier.
  • Page 225 APPENDIX D — VFD INFORMATION Table AH — Alarm Codes ALARM ALARM NAME DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION CODE IN PANEL Reserved 2001 — Reserved 2002 — Reserved 2003 — The change in direction being attempted is not allowed. Do not attempt to change the direction of motor rotation, 2004 DIR LOCK or Change parameter 1003 DIRECTION to allow direction change (if reverse operation is safe).

  • Page 226: Appendix E - Mode Selection Process

    APPENDIX E — MODE SELECTION PROCESS The following section is to be used in conjunction with Fig. 4 on page 43. To help determine why the unit controls are in a HVAC mode: (“Static Pres.Fail”) OFF certain mode, the programming logic is provided below. The software will proceed, step by step, until a mode is reached.
  • Page 227 APPENDIX E — MODE SELECTION PROCESS — This is a normal cooling mode when a low cooling demand exists. HVAC mode: (“High Cool ”) — This is a normal cooling mode when a high cooling demand exists. HVAC mode: (“Low Heat ”) —...

  • Page 228: Appendix F - Upc Open Controller

    APPENDIX F — UPC OPEN CONTROLLER The following section is used to configure the UPC Open con- troller. The UPC Open controller is mounted in a separate en- closure below the main control box. 10's To Address the UPC Open Controller The user must give the UPC Open controller an address that is unique on the BACnet network.
  • Page 229 See Fig. H, J, and K. The example in Fig. I shows the BAS Port DIP Switches set for To wire the UPC Open controller to the BAS network: 76.8k (Carrier default) and MS/TP. Pull the screw terminal connector from the controller's BAS Port.
  • Page 230 These are accessory items and do not come with the UPC Open If there are problems wiring or addressing the UPC Open con- controller. troller, contact Carrier Technical Support. The BACview unit connects to the local access port on the COMMUNICATION LEDS UPC Open controller.
  • Page 231 APPENDIX F — UPC OPEN CONTROLLER Table AL — MS/TP Wiring Recommendations SPECIFICATION RECOMMMENDATION Cable Single twisted pair, low capacitance, CL2P, 22 AWG (7x30), TC foam FEP, plenum rated cable Conductor 22 or 24 AWG stranded copper (tin plated) Insulation Foamed FEP 0.015 in.
  • Page 232 APPENDIX F — UPC OPEN CONTROLLER Fig. L — BACview Device Connection Table AN — LED Status Indicators STATUS Lights when power is being supplied to the controller. The UPC Open controller is protected by internal solid-state polyswitches on the Power incoming power and network connections.
  • Page 233 APPENDIX F — UPC OPEN CONTROLLER Table AP — NETWORK POINTS LIST CCN POINT READ/ DEFAULT BACNET BACNET OBJECT POINT DESCRIPTION UNITS RANGE NAME WRITE VALUE OBJECT ID NAME Active Demand Limit DEM_LIM 0 to 100 AV:9 dem_lim_1 Air Temp Lvg Evap Coil -40 to 240 AV:11 cct_1...
  • Page 234 APPENDIX F — UPC OPEN CONTROLLER Table AP — NETWORK POINTS LIST (cont) CCN POINT READ/ DEFAULT BACNET BACNET OBJECT POINT DESCRIPTION UNITS RANGE NAME WRITE VALUE OBJECT ID NAME Demand Limit In Effect MODEDMLT 0 to 1 BV:31 modedmlt_1 Demand Limit Sw.1 Setpt.
  • Page 235 APPENDIX F — UPC OPEN CONTROLLER Table AP — NETWORK POINTS LIST (cont) CCN POINT READ/ DEFAULT BACNET BACNET OBJECT POINT DESCRIPTION UNITS RANGE NAME WRITE VALUE OBJECT ID NAME Mixed Air Temperature –40 to 240 AV:1500 ma_temp_1 Modulating Gas Capacity HTMG_CAP 0 to 100 AV:65...
  • Page 236 APPENDIX F — UPC OPEN CONTROLLER Table AP — NETWORK POINTS LIST (cont) CCN POINT READ/ DEFAULT BACNET BACNET OBJECT POINT DESCRIPTION UNITS RANGE NAME WRITE VALUE OBJECT ID NAME Temp Comp Start Cool Factor TCSTCOOL 0 to 60 AV:159 tcstcool_1 Temp Comp Start Heat Factor TCSTHEAT...

  • Page 237: Appendix G - Optional Motormaster

    ® APPENDIX G — OPTIONAL MOTORMASTER V CONTROL which adjusts condenser fan motor speed in response to varying GENERAL liquid refrigerant pressure. A properly applied Motormaster V This appendix contains instructions for the start-up and service of control extends the operating range of air-conditioning systems the optional Motormaster V (MMV) control on 48/50P030-100 and permits operation at lower outdoor ambient temperatures.
  • Page 238 ® APPENDIX G — OPTIONAL MOTORMASTER V CONTROL MOTORMASTER CONTROL Fig. O — MMV Control Location — 48/50P050-060 Units MOTORMASTER A CONTROL MOTORMASTER B CONTROL Fig. P — MMV Control Location — 48/50P070,075 Units...
  • Page 239 ® APPENDIX G — OPTIONAL MOTORMASTER V CONTROL MOTORMASTER A CONTROL MOTORMASTER B CONTROL Fig. Q — MMV Control Location — 48/50P090,100 Units backward, lock out all power, then swap 2 leads AFTER the ® Configure Motormaster V Control Motormaster V control. The Motormaster V control is configured for proportional inte- gral (PI) control mode.
  • Page 240 It is strongly recommended that the user NOT change any Press MODE to store the new setting and also exit the programming without consulting Carrier service personnel. Unit damage may occur from improper programming. PROGRAM mode. To change another parameter, press the...
  • Page 241 VFD. Table AR. Loss of CCN Communications The MMV control also provides real time monitoring of key Carrier Comfort Network (CCN) communications with exter- ® inputs and outputs. The collective group is displayed through nal control systems can be affected by high frequency electri- parameters P50 to P56 and all values are read only.
  • Page 242 DESCRIPTION MODE 1 MODE 2 MODE 4 Line Voltage: 01 = low line, 02 = high line Carrier Freq: 01 = 4 kHz, 02 = 6 kHz, 03 = 8 kHz Startup mode: flying restart Stop mode: coast to stop...
  • Page 243 The control board has sensed a Consult factory. problem Data Fault Manual User data and Carrier defaults in the Restore factory defaults by toggling P48 to EPM are corrupted. another mode. Then set P48 to desired mode to restore all defaults for that mode.

  • Page 244: Index

    ® system Two-stage gas and electric heat control 38, 90 Copyright 2019 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480241-01 Printed in U.S.A.
  • Page 245 CONTROLS SET POINT AND CONFIGURATION LOG MODEL NUMBER: Software Version SERIAL NUMBER: CESR131461-- DATE: CESR131465-- TECHNICIAN: CESR131465-- NAVI CESR130227-- CESR131226-- CESR131174-- MARQ CESR131171-- CESR131173-- CESR131172-- ITEM EXPANSION RANGE DEFAULT SETTING UNIT UNIT CONFIGURATION C.TYP Machine Control Type 1 to 4 (multi-text strings) SIZE Unit Size (30-100) 3 to 100...
  • Page 246 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING COOL (cont) COOLING CONFIGURATION SCT.H Maximum Condenser Temp 100 to 150 dF SCT.L Minimum Condenser Temp 40 to 90 dF DG.A1 A1 is a Digital Scroll Yes/No MC.A1 A1 Min Digital Capacit 10 to 100% DS.AP...
  • Page 247 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING ECON ECONOMIZER CONFIGURATION EC.EN Economizer Installed? Yes/No EC2.E Econ.Act.2 Installed? Yes/No EC.MN Economizer Min.Position 0 to 100% EC.MX Economizer Max.Position 0 to 100% E.SEL Econ ChangeOver Select 0 to 3 (multi-text strings) DDB.C Diff Dry Bulb RAT Offset 0 to 3...
  • Page 248 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING BUILDING PRESS. CONFIGS BP.CF Building Press. Config 0 to 5 (multi-text strings) BP.S Building Pressure Sensor Enable/Disable Disable BP.R Bldg. Press. (+/-) Range 0.10 to 0.25 " H2O 0.25 BP.SP Building Pressure Setp.
  • Page 249 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING INDOOR AIR QUALITY CFG. DCV.C DCV ECONOMIZER SETPOINTS DCV.CEC.MN Economizer Min.Position 0 to 100% DCV.CIAQ.M IAQ Demand Vent Min.Pos. 0 to 100% DCV.CO.C.MX Economizer Min.Flow 0 to 20000 CFM 2000 DCV.CO.C.MN IAQ Demand Vent Min.Flow...
  • Page 250 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING CCN CONFIGURATION CCNA CCN Address 1 to 239 CCNB CCN Bus Number 0 to 239 BAUD CCN Baud Rate 1 to 5 (multi-text strings) BROD CCN BROADCST DEFINITIONS BRODTM.DT CCN Time/Date Broadcast ON/OFF...
  • Page 251 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION RANGE DEFAULT SETTING SW.LG SWITCH LOGIC: NO / NC FTS.L Filter Status Inpt-Clean Open/Close Open IGC.L IGC Feedback - Off Open/Close Open RMI.L RemSw Off-Unoc-Strt-NoOv Open/Close Open ENT.L Enthalpy Input - Low Open/Close Close SFS.L...

  • Page 252: Unit Start-Up Checklist

    CIRCUIT NO. 2 __________ PSIG CIRCUIT NO. 2 __________ PSIG  _______________________VERIFY REFRIGERANT CHARGE. Copyright 2019 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480241-01 Printed in U.S.A.

This manual is also suitable for:

Weathermaster 48p3030-100Weathermaster 48p4030-100Weathermaster 48p5030-100Weathermaster 50p2030-100Weathermaster 50p3030-100Weathermaster 50p4030-100 ... Show all

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