Page 1: Table Of Contents
Controls, Start-Up, Operation, Service and Troubleshooting CONTENTS SAFETY CONSIDERATIONS ..... . 2 GENERAL ........3,4 Conventions Used in this Manual .
Page 2: Safety Considerations
(CCN)....79 ® Carrier Comfort Network Alert Limit Configuration ......80 Sensor Trim Configuration .
Page 3: General
Access to the unit con- trols for configuration, set point selection, schedule creation, and service can be done through a unit-mounted scrolling mar- quee. Access can also be done through the Carrier Comfort Network using ComfortVIEW™ software, Network Service ®...
Page 4: Basic Control Usage
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 via the Internet.
Page 5: Operation
These keys face (33PILOT-01) is a component of the 3V™ system and serves as a user-interface and configuration tool for all Carrier communicating devices. The System Pilot interface can be used to install and commission a 3V zoning system, linkage compatible air source, universal controller, and all other devic- es operating on the Carrier communicating network.
Page 6 Table 2 — Scrolling Marquee Menu Display Structure SERVICE TEMPERATURES STATUS TEST Auto View of Service Test Mode Run Status (TEST) Temperatures ↓ (VIEW) (AIR.T) ↓ ↓ Software Econ Command Refrigerant Run Status Disable Temperatures (ECON) (STOP) (REF.T) ↓ ↓ Cooling Soft Stop Information...
Page 7: Start-Up
IMPORTANT: The computer system software (ComfortVIEW™, Service Tool, etc.) that is used to interact with CCN controls always saves a template of items it considers as static (e.g., limits, units, forcibil- ity, 24-character text strings, and point names) after the software uploads the tables from a control. There- after, the software is only concerned with run time data like value and hardware/force status.
Page 8 Table 3 — Fan Performance — 48ZG,ZN030 and 50ZG,ZN030 Units Without Discharge Plenum* AIRFLOW (Cfm) 6,000 0.59 0.91 7,500 0.94 1.28 9,000 1.46 1.80 10,500 2.16 2.52 12,000 3.08 3.44 13,500 4.25 4.62 15,000 5.69 6.06 AIRFLOW (Cfm) 6,000 3.84 4.30 7,500 4.57...
Page 9 Table 4 — Fan Performance — 48ZG,ZN035 and 50ZG,ZN035 Units Without Discharge Plenum* AIRFLOW (Cfm) 7,000 0.84 1.19 8,000 1.14 1.50 10,000 1.98 2.36 12,000 3.20 3.60 14,000 4.87 5.28 15,000 5.89 6.31 AIRFLOW (Cfm) 7,000 4.40 8,000 4.94 10,000 6.16 12,000 7.67...
Page 10 Table 5 — Fan Performance — 48ZG,ZN040 and 50ZG,ZN040 Units Without Discharge Plenum* AIRFLOW (Cfm) 8,000 0.98 1.33 10,000 1.67 2.11 12,000 2.65 3.18 14,000 3.96 4.61 16,000 5.67 6.44 18,000 7.84 8.72 20,000 10.51 11.51 AIRFLOW (Cfm) 8,000 4.60 5.14 10,000 5.75...
Page 11 Table 6 — Fan Performance — 48ZG,ZN050 and 50ZG,ZN050 Units Without Discharge Plenum* AIRFLOW (Cfm) 9,000 1.34 1.73 10,000 1.74 2.17 12,000 2.76 3.29 14,000 4.15 4.79 16,000 5.96 6.71 18,000 8.26 9.12 20,000 11.10 12.06 AIRFLOW (Cfm) 9,000 5.23 5.81 10,000 5.85...
Page 12 Table 7 — Fan Performance — 48ZG,ZN055 and 50ZG,ZN055 Units Without Discharge Plenum* AIRFLOW (Cfm) 10,000 1.04 1.50 12,500 1.69 2.23 15,000 2.59 3.23 17,500 3.78 4.52 20,000 5.31 6.15 22,500 7.23 8.16 25,000 9.59 10.60 AIRFLOW (Cfm) 10,000 7.27 8.39 12,500 7.73...
Page 13 Table 8 — Fan Performance — 48ZG,ZN060 and 50ZG,ZN060 Units Without Discharge Plenum* AIRFLOW (Cfm) 12,000 1.54 2.03 15,000 2.65 3.27 18,000 4.22 5.00 21,000 6.36 7.29 24,000 9.19 10.24 27,000 12.80 13.93 30,000 17.29 18.50 AIRFLOW (Cfm) 12,000 7.56 8.57 15,000 8.87...
Page 14 Table 9 — Fan Performance — 48ZG,ZN070 and 50ZG,ZN070 Units Without Discharge Plenum* AIRFLOW (Cfm) 14,000 2.23 2.80 17,500 3.92 4.67 21,000 6.36 7.29 24,500 9.74 10.80 28,000 14.18 15.35 30,000 17.29 18.50 AIRFLOW (Cfm) 14,000 8.39 9.46 17,500 10.42 11.48 21,000 13.56...
Page 15 Table 10 — Fan Performance — 50ZG,ZN030 Units With Discharge Plenum and 50Z2,Z3030 Units AIRFLOW (Cfm) 6,000 0.95 1.35 7,500 1.51 1.93 9,000 2.28 2.73 10,500 3.28 3.76 12,000 4.56 5.07 13,500 6.12 6.66 15,000 7.99 8.58 AIRFLOW (Cfm) 6,000 5.43 6.09 7,500...
Page 16 Table 11 — Fan Performance — 50ZG,ZN035 Units With Discharge Plenum and 50Z2,Z3035 Units AIRFLOW (Cfm) 7,000 1.35 1.78 8,000 1.81 2.25 10,000 3.04 3.52 12,000 4.74 5.26 14,000 6.98 7.55 15,000 8.33 8.92 AIRFLOW (Cfm) 7,000 6.03 6.74 8,000 6.58 7.32 10,000...
Page 17 Table 12 — Fan Performance — 50ZG,ZN040 Units With Discharge Plenum and 50Z2,Z3040 Units AIRFLOW (Cfm) 8,000 1.62 2.10 10,000 2.66 3.19 12,000 4.09 4.68 14,000 5.97 6.62 16,000 8.32 9.06 18,000 11.20 12.04 20,000 14.66 15.59 AIRFLOW (Cfm) 8,000 6.23 6.87 10,000...
Page 18 Table 13 — Fan Performance — 50ZG,ZN050 Units With Discharge Plenum and 50Z2,Z3050 Units AIRFLOW (Cfm) 9,000 2.15 2.67 10,000 2.74 3.28 12,000 4.23 4.82 14,000 6.17 6.83 16,000 8.63 9.34 18,000 11.65 12.44 20,000 15.28 16.14 AIRFLOW (Cfm) 9,000 7.08 7.77 10,000...
Page 19 Table 14 — Fan Performance — 50ZG,ZN055 Units With Discharge Plenum and 50Z2,Z3055 Units AIRFLOW (Cfm) 10,000 1.21 1.71 12,500 2.01 2.63 15,000 3.13 3.90 17,500 4.64 5.55 20,000 6.64 7.64 22,500 9.20 10.25 25,000 12.39 13.48 AIRFLOW (Cfm) 10,000 7.48 8.46 12,500...
Page 20 Table 15 — Fan Performance — 50ZG,ZN060 Units With Discharge Plenum and 50Z2,Z3060 Units AIRFLOW (Cfm) 12,000 1.82 2.41 15,000 3.14 3.87 18,000 5.03 5.92 21,000 7.61 8.66 24,000 10.97 12.20 27,000 15.23 16.65 30,000 20.52 22.11 AIRFLOW (Cfm) 12,000 7.94 8.91 15,000...
Page 21 Table 16 — Fan Performance — 50ZG,ZN070 Units With Discharge Plenum and 50Z2,Z3070 Units AIRFLOW (Cfm) 14,000 2.64 3.32 17,500 4.67 5.54 21,000 7.61 8.66 24,500 11.61 12.87 28,000 16.88 18.35 30,000 20.52 22.11 AIRFLOW (Cfm) 14,000 9.17 10.19 17,500 12.07 13.14 21,000...
Page 22 Table 17 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9075 AIRFLOW (Cfm) 14,000 2.35 3.06 16,000 3.27 4.06 18,000 4.42 5.31 20,000 5.83 6.82 22,000 7.53 8.62 24,000 9.55 10.75 26,000 11.91 13.22 28,000 14.65 16.06 30,000 17.78 19.31 AIRFLOW (Cfm) 14,000 9.12 10.10...
Page 23 Table 18 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9075 AIRFLOW 0.30 0.60 (Cfm) 15,000 3.32 4.27 16,000 3.86 4.85 18,000 5.11 6.20 20,000 6.60 7.80 22,000 8.37 9.66 24,000 10.42 11.73 26,000 1015 12.73 1047 14.26 28,000 1088 15.52 1118 17.15 30,000 1162...
Page 24 Table 19 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9090 AIRFLOW (Cfm) 16,000 3.27 4.06 18,000 4.42 5.31 20,000 5.83 6.82 22,000 7.53 8.62 24,000 9.55 10.75 26,000 11.91 13.22 28,000 14.65 16.06 30,000 17.78 19.31 32,000 21.36 22.99 34,000 25.39 27.13 AIRFLOW (Cfm)
Page 25 Table 20 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9090 AIRFLOW 0.30 0.60 (Cfm) 17,000 4.45 5.50 18,000 5.11 6.20 20,000 6.60 7.80 22,000 8.37 9.66 24,000 10.42 11.73 26,000 1015 12.73 1047 14.26 28,000 1088 15.52 1118 17.15 30,000 1162 18.68 1190 20.43...
Page 26 Table 21 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9105 AIRFLOW (Cfm) 20,000 5.83 6.82 22,000 7.53 8.62 24,000 9.55 10.75 26,000 11.91 13.22 28,000 14.65 16.06 30,000 17.78 19.31 32,000 21.36 22.99 34,000 25.39 27.13 36,000 29.92 31.77 38,000 34.96 36.91 40,000 40.54...
Page 27 Table 22 — Fan Performance — 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9105 AIRFLOW 0.30 0.60 (Cfm) 20,000 6.60 7.80 22,000 8.37 9.66 24,000 10.42 11.73 26,000 1015 12.73 1047 14.26 28,000 1088 15.52 1118 17.15 30,000 1162 18.68 1190 20.43 32,000 1235 22.25 1262 24.12 34,000...
Page 28 Table 23 — Fan Performance — Standard Capacity Power Exhaust AIRFLOW 0.20 0.40 (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 8,000 1.69 523 2.40 591 10,000...
Page 29 Table 25 — Fan Performance — High-Capacity Power Exhaust AIRFLOW (Cfm) 14,000 3.79 16,000 5.37 18,000 7.37 20,000 9.81 22,000 12.75 24,000 16.21 26,000 20.24 28,000 24.87 30,000 30.15 32,000 36.10 34,000 42.76 36,000 1013 50.17 38,000 1067 58.36 40,000 1121 67.37 AIRFLOW...
Page 30 BkW — Brake Kilowatts NOTES: 1. Extensive motor and electrical testing on the Carrier units has ensured that the full horsepower range of the motor can be utilized with confidence. Using your fan motors up to the horsepower ratings shown in the Motor Limitations table will not result in nuisance tripping or premature motor failure.
Page 31 BkW — Brake Kilowatts NOTES: 1. Extensive motor and electrical testing on the Carrier units has ensured that the full horsepower range of the motor can be utilized with confidence. Using your fan motors up to the horsepower ratings shown in the Motor Limitations table will not result in nuisance tripping or premature motor failure.
Page 32 Table 30A — Component Pressure Drops (in. wg) COMPONENT 6,000 ECONOMIZER 0.06 INLET GUIDE VANES 0.01 FILTERS Pleated (2-in.) 0.01 Bags With Prefilters* 0.36 POWER EXHAUST 0.07 LOW GAS HEAT 0.04 HIGH GAS HEAT 0.13 ELECTRIC HEAT† 36 kW 0.03 72 kW 0.03 108 kW...
Page 33: Controls Quick Start
CONTROLS QUICK START The following section will provide a quick user guide to set- ting up and configuring the Z Series units with ComfortLink™ controls. See Basic Control Usage section on page 4 for infor- mation on operating the control. Two-Stage Constant Volume...
Page 34: Multi-Stage Constant Volume Units With
4. See the Economizer Options section on this page for ad- ditional economizer option configurations. 5. See the Exhaust Options section on this page for addition- al exhaust option configurations. Multi-Stage Constant Volume Units with To configure the unit, perform the Space Sensor —...
Page 35: Set Clock On Vfd (If Installed)
→ → Configuration BF.CF=2 (Modulating Exhaust with Two LEN Actuators Option) — For modulat- → ing exhaust, the Configuration BP submenu, configure the following: BP.SP Building Pressure Set point BP.SO BP Set point Offset → → Under Configuration B.V.A the following configu- rations may be adjusted: BP.FS VFD/Act.
Page 36: Programming Operating Schedules
Programming Operating Schedules — ComfortLink™ controls will accommodate up to eight differ- ent schedules (Periods 1 through 8), and each schedule is assigned to the desired days of the week. Each schedule includes an occupied on and off time. As an example, to set an occupied schedule for 8 AM to 5 PM for Monday through Friday, the user would set days Monday through Friday to ON for Period 1.
Page 37 ITEM EXPANSION TEST Service Test Mode STOP Local Machine Disable S.STP Soft Stop Request FAN.F Supply Fan Request INDP TEST INDEPENDENT OUTPUTS →HUM.R Humidifier Relay →ALRM Remote Alarm/Aux Relay FANS TEST FANS →F.MOD Fan Test Automatic? →E.POS Econo Damper Command Pos →S.FAN Supply Fan Relay →I.POS...
Page 38: Service Test Mode Logic
Operation in the Service Service Test Mode Logic — Test mode is sub-menu specific except for the INDP sub- menu. Leaving the sub-menu while a test is being performed and attempting to start a different test in the new sub-menu will cause the previous test to terminate.
Page 39: Third Party Control
THIRD PARTY CONTROL The method of control would be through Thermostat — the thermostat inputs: Y1 = first stage cooling Y1 and Y2 = first and second stage cooling W1 = first stage heating W1 and W2 = first and second stage heating G = supply fan The alarm output (not available when Alarm Output —...
Page 40: Controls Operation
If the switch is closed, the IAQ reading will be high and the economizer will be commanded to the Economizer Minimum Position. If the outdoor airflow station is installed and outdoor air cfm can be read, the economizer will move to the Econo- mizer Minimum Flow CFM control setting.
Page 41: System Modes
the control are located at the local displays under Operating Modes. See Table 32. Table 32 — Operating Modes Display Table ITEM EXPANSION SYS.M ascii string HVAC ascii string CTRL ascii string MODE MODES CONTROLLING UNIT Currently Occupied ON/OFF MODEOCCP T.OVR Timed Override in Effect ON/OFF MODETOVR DCV Resetting Min Pos...
Page 42: Unit Configuration Submenu
HVAC Mode — VENT (09) — This is a normal operation mode where no heating or cooling is required and outside air is being delivered to the space to control IAQ levels. HVAC Mode — HIGH COOL (10) — This is a normal cool- ing mode where a high cooling demand is required.
Page 43 System Mode = OFF? System Mode Inputs -> FIRE -> HVAC Mode = OFF FSD in alarm? (Disabled) HVAC Mode = OFF (Fire Shutdown) Exceptions Config->UNIT-> C.TYP changed while unit running? 15-second delay HVAC Mode = OFF (Disabled) Config->SP-> SP.CF = 1 OR 2 and static pressure sensor has failed...
Page 44 ITEM EXPANSION UNIT UNIT CONFIGURATION C.TYP Machine Control Type CV.FN Fan Mode (0=Auto, 1=Cont) RM.CF Remote Switch Config CEM Module Installed TCS.C Temp.Cmp.Strt.Cool Factr TCS.H Temp.Cmp.Strt.Heat Factr SFS.S Fan Fail Shuts Down Unit SFS.M Fan Stat Monitoring Type VAV.S VAV Unocc.Fan Retry Time SIZE Unit Size (30-105) 50.HZ...
Page 45: Cooling Control
50 Hertz Unit? (50.HZ) — Some units are designed to run at 50 Hertz instead of 60 Hertz. Make sure this configuration matches the frequency called out by the model number of the unit. This is important as the cooling stage tables are directly determined based on both the SIZE and 50.HZ configurations.
Page 46: Machine Dependent Configurations
COOL or a HIGH COOL mode and maintain a low or high cool supply air set point. • C.TYP = 4 (TSTAT – 2 STG) This configuration will force the control to monitor the ther- mostat inputs to make a determination of mode. •...
Page 47: Supply Air Reset Configuration
ITEM EXPANSION OHSP Occupied Heat Setpoint OCSP Occupied Cool Setpoint UHSP Unoccupied Heat Setpoint UCSP Unoccupied Cool Setpoint Heat-Cool Setpoint Gap V.C.ON VAV Occ. Cool On Delta V.C.OF VAV Occ. Cool Off Delta SASP Supply Air Setpoint SA.HI Supply Air Setpoint Hi SA.LO Supply Air Setpoint Lo SA.HT...
Page 48 VAV Cool Mode Selection during the Occupied Period → (C.TYP = 1,2 and Operating Modes — There is no difference in the selection of a cooling mode for either VAV-RAT or VAV-SPT in the occupied period. The actual selection of a cool mode, for both control types, is based upon the controlling return-air temperature (Temperatures →...
Page 49 Operating modes are under Operating Modes ITEM EXPANSION MODE MODES CONTROLLING UNIT Currently Occupied ON/OFF MODEOCCP T.C.ST Temp.Compensated Start ON/OFF MODETCST Cool Mode Evaluation Logic — The first thing the control determines is whether the unit is in the occupied mode (OCC) or is in the temperature compensated start mode (T.C.ST).
Page 50 COOL MODE DIAGNOSTIC HELP — To quickly deter- mine the current trip points for the cooling modes, the Run Status sub-menu at the local display allows the user to view the calculated start and stop points for both the cooling and heating trip points.
Page 51 ITEM EXPANSION COOL COOLING INFORMATION C.CAP Current Running Capacity CUR.S Current Cool Stage REQ.S Requested Cool Stage MAX.S Maximum Cool Stages DEM.L Active Demand Limit SUMZ COOL CAP. STAGE CONTROL Capacity Load Factor ADD.R Next Stage EDT Decrease SUB.R Next Stage EDT Increase R.PCT Rise Per Percent Capacity Y.MIN...
Page 52 MAT Calc Config (MAT.S) — This configuration gives the user three options in the processing of the mixed-air tempera- ture (MAT) calculation: • MAT.S = 0 The control will not attempt to learn MAT over time. The control will simply calculate MAT based on the position of the economizer, outside and return air temperature, linearly.
Page 53: Economizer Integration With
ITEM EXPANSION DMD.L DEMAND LIMIT CONFIG. DM.L.S Demand Limit Select D.L.20 Demand Limit at 20 ma SH.NM Loadshed Group Number SH.DL Loadshed Demand Delta SH.TM Maximum Loadshed Time D.L.S1 Demand Limit Sw.1 Setpt. D.L.S2 Demand Limit Sw.2 Setpt. CCN Loadshed Demand Limiting (DM.L.S = 3) — If the unit has been configured for CCN Loadshed Demand Limiting, then the demand limiting variable (Run Status DEM.L) is controlled via CCN commands.
Page 54: Heating Control
If the economizer is able to provide free cooling at the start of a cooling session, the mechanical cooling algorithm (SumZ), checks the economizer’s current position (Run Status → → ECON ECN.P) and compares it to the economizer’s → maximum position (Configuration ECON Once the economizer has opened beyond this point a 150 sec- ond timer starts.
Page 55: Temperature Driven Heat Mode Evaluation
Heating Control Type (HT.CF) — The heating control types available are selected/configured with this variable. 0 = No Heat 1 = Electric Heat 2 = 2 Stage Gas Heat 3 = Staged Gas Heat 4 = Hydronic Heat Heating Supply Air Set Point (HT.SP) — In a low heat mode for either staged gas or hydronic heat, this is the supply air set point for heating.
Page 56: Two-Stage Gas And Electric Heat Control
Related operating modes are under Operating Modes MODE. ITEM EXPANSION RANGE MODE MODES CONTROLLING UNIT Currently Occupied ON/OFF T.C.ST Temp.Compensated Start ON/OFF The first thing the control determines is whether the unit is in the occupied mode (OCC) or in the temperature compen- sated start mode (T.C.ST).
Page 57: Staged Gas Heating Control
D = K * HW.D * (error – error last time through) Where K = HW.TM/60 to normalize the effect of changing the run time rate. NOTE: The PID values should be not be modified without approval from Carrier. → Freeze Status Switch Logic (Inputs GEN.I...
Page 58 Staged Gas Capacity Calculation = “P + D” + old Staged Gas Capacity Calculation NOTE: The PID values should not be modified without approval from Carrier. IMPORTANT: When gas or electric heat is used in a VAV application with third party terminals, the HIR relay output must be connected to the VAV terminals in the system in order to enforce a minimum heating cfm.
Page 59 Limit Switch Temperature Monitoring (LIM.M) — Variable air volume applications in the low heat or tempering mode can experience low airflow and as a result it is possible for nuisance trips of the gas heat limit switch, thereby shutting off all gas stages.
Page 60 2 Flashes Installing a New Sensor — Procure a duct-mount temperature 3 Flashes sensor (Carrier P/N 33ZCSENPAT or equivalent 10-kilo-ohm at 25C NTC [negative temperature coefficient] sensor). Install 4 Flashes the sensor through the side wall of the duct and secure.
Page 61: Tempering Mode
Setting up the System — The relevant set points for temper- ing are located at the local display under Setpoints: ITEM EXPANSION RANGE UNITS Tempering –20-80 T.PRG Purge SASP Tempering in 5-75 T.CL Cool SASP Tempering Vent –20-80 T.V.OC Occ SASP Tempering Vent –20-80 T.V.UN...
Page 62 Table 52 — Static Pressure Control Configuration ITEM EXPANSION SUPPLY STATIC PRESS.CFG. →SP.CF Static Pressure Config →SP.S Static Pressure Sensor →SP.LO Static Press. Low Range →SP.HI Static Press. High Range →SP.SP Static Pressure Setpoint →SP.MN VFD-IGV Minimum Speed →SP.MX VFD-IGV Maximum Speed →SP.FS VFD-IGV Fire Speed Over.
Page 63 Note the existing settings before making changes, and seek technical assistance from Carrier before making significant changes to these factors. → Static Pressure PID Run Rate (S.PID number of seconds between duct static pressure readings taken by the ComfortLink PID routine.
Page 64: Static Pressure Reset
determine the actual set point required and deliver the required airflow to every terminal under the current load conditions. As the conditions and airflow requirements at each terminal change throughout the operating period, so will SP.RS and the unit’s effective static pressure set point. In the unlikely chance that both static pressure reset control signals are simultaneously present, the CCN signal will take precedence.
Page 65: Economizer
Table 55 — Dirty Filter Switch Points ITEM EXPANSION → Configuration UNIT Filter → → SENS FLT.S Stat.Sw.Enabled ? → Inputs GEN.I Filter Status Input DRTY/CLN FLTS → FLT.S Monitoring of the filter status switch is disabled in the Service Test mode and when the supply fan is not commanded on.
Page 66: Outdoor Air Cfm Control
ITEM EXPANSION EC.EN Economizer Installed? EC2.E Econ.Act.2 Installed? EC.MN Economizer Min.Position EC.MX Economizer Max.Position E.TRM Economzr Trim For SumZ ? E.SEL Econ ChangeOver Select OA.E.C OA Enthalpy ChgOvr Selct OA.EN Outdr.Enth Compare Value OAT.L High OAT Lockout Temp O.DEW OA Dewpoint Temp Limit ORH.S Outside Air RH Sensor CFM.C...
Page 67 outdoor air dewpoint temperature and will compare this temperature against the outside air dewpoint temperature → limit configuration (Configuration ECON outdoor air dewpoint temperature is greater than O.DEW, free cooling will not be allowed. Fig. 10 shows a horizontal limit line in the custom curve of the psychrometric chart.
Page 68: Economizer Operation Configuration
Control Angle Alarm Configuration — The economizer ac- tuator determines its end stops through a calibration at the factory. Field-installed actuators may be calibrated in the Service Test mode. When an actuator learns its end stops through calibration, it also determines its control angle. The actuator will resolve this control angle and express its operation in a percent (%) of this learned range.
Page 69: Building Pressure Control
The economizer’s reported and commanded positions are also viewable, as well as outside air temperature, relative humidity, enthalpy and dew point temperature. The following information can be found under the Local → Display Mode Run Status ECON. See Table 57. Economizer Control Point Determination Logic —...
Page 70: Building Pressure Control Operation
BUILDING PRESSURE CONFIGURATION — The build- ing pressure configurations are found at the local display under → Configuration BP. See Table 58. Building Pressure Config (BP.CF) — This configuration se- lects the type of building pressure control. • BP.CF = 0, No building pressure control •...
Page 71 VFD control signal (clamped between BP.MN and BP.MX%) = P + I + D NOTE: Do not change values of PID set point without approval from Carrier. BP.CF = 4 (High-Capacity Exhaust Control) — Control is accomplished with a VFD and two exhaust fan relays. High-...
Page 72: Configuring The Building Pressure
Controlling high-capacity power exhaust differs from nor- mal power exhaust in the following ways: • The integral term is not used. The percentile commanded position of the VFD is used instead. • A “clamp percent” configuration is added (BP.CL) to create a deadband that will assist the algorithm in controlling the second power exhaust relay.
Page 73: Fire Smoke Inputs
contact closure. Multiple smoke control inputs, sensed by the control will force the unit into a Fire Shutdown mode. FIRE SMOKE INPUTS — These discrete inputs can be → found on the local display under Inputs ITEM EXPANSION RANGE FIRE FIRE-SMOKE INPUTS Fire Shutdown Input ALRM/NORM FSD...
Page 74 damper position will never exceed the bounds specified by IAQ.M and EC.MN during IAQ control. If the building is occupied and the indoor fan is running and the differential between IAQ and OAQ is less than DAQ.L, the economizer will remain at IAQ.M. The economizer will not close completely.
Page 75 AQ.CF IAQ Low Reference (Configuration IQ.R.L) — This is the reference that will be used with a to non-Carrier IAQ sensor that may have a different characteristic curve. It represents the CO High →...
Page 76: Humidification
OAQ Low Reference (Configuration → OQ.R.L) — This is the reference that will be used with a non-Carrier OAQ sensor that may have a different characteris- tic curve. It represents the CO level at 4 mA. OAQ High Reference (Configuration OQ.R.H) —...
Page 77: Configuring The Humidifier Actuator
ITEM EXPANSION HUMD HUMIDITY CONFIGURATION HM.CF Humidifier Control Cfg. HM.SP Humidifier Setpoint H.PID HUMIDIFIER PID CONFIGS HM.TM Humidifier PID Run Rate HM.P Humidifier Prop. Gain HM.I Humidifier Integral Gain HM.D Humidifier Deriv. Gain ACT.C HUMIDIFIER ACTUATOR CFGS SN.1 Humd Serial Number 1 SN.2 Humd Serial Number 2 SN.3...
Page 78: Temperature Compensated Start
ITEM EXPANSION DEHU DEHUMIDIFICATION CONFIG. D.SEL Dehumidification Config D.SEN Dehumidification Sensor D.EC.D Econ disable in DH mode? D.V.CF Vent Reheat Setpt Select D.V.RA Vent Reheat RAT offset D.V.HT Vent Reheat Setpoint D.C.SP Dehumidify Cool Setpoint D.RH.S Dehumidify RH Setpoint • D.SEL = 1 — The control will perform both dehumidifi- cation and reheat with modulating valve (hydronic).
Page 79: Temperature Compensated Start Logic
(CCN) — to configure the ComfortLink™ controls to participate as an el- ement of the Carrier Comfort Network (CCN) system directly from the local display. This section will deal with explaining the various programmable options which are found under the CCN sub-menu in the Configuration mode.
Page 80: Alert Limit Configuration
ITEM EXPANSION CCN CONFIGURATION CCNA CCN Address CCNB CCN Bus Number BAUD CCN Baud Rate BROD CCN BROADCST DEFINITIONS TM.DT CCN Time/Date Broadcast OAT.B CCN OAT Broadcast ORH.B CCN OARH Broadcast OAQ.B CCN OAQ Broadcast G.S.B Global Schedule Broadcst B.ACK CCN Broadcast Ack'er SC.OV CCN SCHEDULES-OVERRIDES...
Page 81: Sensor Trim Configuration
This is used when field-supplied switches or input devices are used instead of Carrier devices. The normally open or normally closed setting may be different on a field-supplied device.
Page 82: Display Configuration
The defaults for this switch logic section will not normally need changing. However, if a field-installed switch is used that is different from the Carrier switch, these settings may need adjustment. IMPORTANT: Many of the switch inputs to the control can be configured to operate as normally open or nor- mally closed.
Page 83: Remote Control Switch Input
ITEM EXPANSION TEST Test Display LEDs METR Metric Display LANG Language Selection PAS.E Password Enable PASS Service Password Remote Control Switch Input — input is located on the RCB board and connected to TB201 terminals 1 and 2. The switch can be used for several remote control functions.
Page 84: Time Clock Configuration
TIME CLOCK CONFIGURATION This section describes each Time Clock menu item. Not every point will need to be configured for every unit. Refer to the Controls Quick Start section for more information on what set points need to be configured for different applications. The Time Clock menu items are discussed in the same order that they are displayed in the Time Clock table.
Page 85: Troubleshooting
ITEM TIME TIME OF DAY HH.MM Hour and Minute DATE MONTH,DATE,DAY AND YEAR MNTH Month of Year Day of Month Day of Week YEAR Year SCH.L LOCAL TIME SCHEDULE PER.1 PERIOD 1 PER.1→DAYS DAY FLAGS FOR PERIOD 1 PER.1→DAYS→MON Monday in Period PER.1→DAYS→TUE Tuesday in Period PER.1→DAYS→WED...
Page 86: Transducer Troubleshooting
determining the resistance with unit shut down and thermistor disconnected from J8. Compare the values determined with the value read by the control in the Temperatures mode using the scrolling marquee display. Transducer Troubleshooting — trol uses 2 suction pressure transducers to measure the suction PROBLEM Compressor and Fan Will Not Power failure.
Page 87 PROBLEM Burners Will Not Ignite. Active alarm. No power to unit. No power to IGC (Integrated Gas Control). Heaters off due to time guard to prevent short cycling. Thermostat or occupancy schedule set point not calling for Cooling. No gas at main burners. Water in gas line.
Page 88 Table 74 — 10K Thermistor vs Resistance (T55, T56, OAT, RAT, EDT, LAT Sensors) (F) TEMP VOLTAGE RESISTANCE DROP (V) (Ohms) –25 4.758 196,453 –24 4.750 189,692 –23 4.741 183,300 –22 4.733 177,000 –21 4.724 171,079 –20 4.715 165,238 –19 4.705 159,717 –18...
Page 89 Table 75 — 10K Thermistor vs Resistance (T55, T56, OAT, RAT, EDT, LAT Sensor) (C) TEMP VOLTAGE RESISTANCE DROP (V) (Ohms) –32 4.762 200,510 –31 4.748 188,340 –30 4.733 177,000 –29 4.716 166,342 –28 4.700 156,404 –27 4.682 147,134 –26 4.663 138,482 –25...
Page 90: Forcing Inputs And Outputs
Table 77 — Discharge Pressure Transducer Pressure (psig) vs Voltage PRESSURE VOLTAGE DROP (psig) 0.466 0.564 0.663 0.761 0.860 0.958 1.056 1.155 1.253 1.352 1.450 1.549 1.647 1.745 1.844 1.942 2.041 2.139 2.238 2.336 2.434 2.533 2.631 2.730 2.828 2.927 3.025 3.124 3.222...
Page 91 LEGEND IDM — Induced-Draft Motor IGC — Integrated Gas Unit Controller NOTE: Thermostat Fan Switch in the “AUTO” position. Fig. 13 — IGC Service Analysis Logic...
Page 92: Auto View Of Run Status
Table 78 — Auto View of Run Status Display Table ITEM EXPANSION VIEW AUTO VIEW OF RUN STATUS →HVAC ascii string spelling out the hvac modes →OCC Occupied ? →MAT Mixed Air Temperature →EDT Evaporator Discharge Tmp →LAT Leaving Air Temperature →EC.C.P Economizer Control Point →ECN.P...
Page 93: Economizer Run Status
Table 79 — Economizer Run Status Display Table ITEM ECON ECONOMIZER RUN STATUS →ECN.P Economizer Act.Curr.Pos. →EC2.P Economzr2 Act.Curr.Pos. →ECN.C Economizer Act.Cmd.Pos. →ACTV Economizer Active ? →DISA ECON DISABLING CONDITIONS →DISA→UNV.1 Econ Act. Unavailable? →DISA→UNV.2 Econ2 Act. Unavailable? →DISA→ENTH Enth. Switch Read High ? →DISA→DBC DBC - OAT Lockout? →DISA→DEW...
Page 94: Ccn/Linkage Display Table
ITEM EXPANSION LINK CCN - LINKAGE →MODE Linkage Active - CCN →L.Z.T Linkage Zone Control Tmp →L.C.SP Linkage Curr. Cool Setpt →L.H.SP Linkage Curr. Heat Setpt Table 83 — Compressor Run Hours Display Table ITEM EXPANSION COMPRESSOR RUN HOURS →HR.A1 Compressor A1 Run Hours →HR.A2 Compressor A2 Run Hours...
Page 97 DIAGNOSTIC ALARM CODES CAUSES T051 (Circuit A, Compressor 1 Failure) T052 (Circuit A, Compressor 2 Failure) T055 (Circuit B, Compressor 1 Failure) T056 (Circuit B, Compressor 2 Failure) NOTE: These alerts only occur on units with a current sensor board (CSB) (48/50Z105 only). If the current sensor board reads OFF while the compressor relay has been commanded ON for a period of 4 continuous seconds, an alert is generated.
Page 98 T073 (Outside Air Temperature Thermistor Failure) — Fail- → ure of this thermistor (Temperatures AIR.T able any elements of the control which requires its use. Econo- mizer control beyond the vent position and the calculation of mixed air temperature for the SumZ algorithm will not be pos- sible.
Page 99 T136 (Compressor A1 Low Differential Pressure) T137 (Compressor A2 Low Differential Pressure) T138 (Compressor B1 Low Differential Pressure) T139 (Compressor B2 Low Differential Pressure) — If the pressure differential between the discharge and suction pres- sure transducers is less than 50 psig for more than 15 minutes when the circuit is running, an alert will be issued and the cir- cuit shut down.
Page 100 override. Recovery is automatic. Reason for error is either a faulty sensor, wiring error, or damaged input on the MBB con- trol board. This error only occurs when the unit is configured for minimum position override and a 4-20 mA signal is not present.
Page 101 T316 (OAT Below Limit) — If the outside-air temperature measured by the OAT thermistor (Temperatures OAT) is below the configurable OAT Low Alert Limit (Con- → → figuration ALLM OAT.L) for 5 minutes then the alert will be broadcast. T317 (OAT Above Limit — If the outside-air temperature measured by the OAT thermistor (Temperatures OAT) is above the configurable OAT High Alert Limit →...
Page 102: Major System Components
VFDs, IGVs, hydronic valves, and humidifier valves. The MBB also interfaces with the Carrier Comfort Network tem through the CCN communications port located on the COMM3 board. The COMM3 board has permanent terminals as well as a J11 jack for temporary connections.
Page 103 a48-8408...
Page 104 a48-8409 Fig. 16 — Main Base Board Input/Output Connections...
Page 105 a48-8410 Fig. 17 — RCB, ECB, CEM, SCB Input/Output Connections...
Page 106 a48-8411 Fig. 18 — Typical Gas Heat Unit Control Wiring (48Z055-105 Units Shown)
Page 107 a50-8248 Fig. 19 — Typical Electric Heat Unit Control Wiring (50Z055-105 Units Shown)
Page 108 a48-8412 Fig. 20 — Typical Power Wiring (115-V) (48Z Units)
Page 109 a50-8249 Fig. 21 — Typical Power Wiring (115-V) (50Z Units)
Page 110 a48-8413...
Page 114 Return Air Thermistor — Rooftop Control Board YELLOW LED - CCN (CARRIER COMFORT NETWORK) Fig. 26 — Main Base Board (MBB) cfm. This board is located in the main control box. Input and output assignments are summarized in Table 89.
Page 115 Table 87 — Main Control Board (MBB) Inputs and Outputs POINT POINT DESCRIPTION NAME INPUTS IGCIFO IGC IFO input Fire Shutdown Switch Thermostat G input Thermostat W2 input Thermostat W1 input Thermostat Y2 input Thermostat Y1 input CSB_A1 Compressor A1 Feedback CSB_B1 Compressor B1 Feedback CSB_A2...
Page 116 Table 88 — Rooftop Control Board (RCB) Inputs and Outputs POINT POINT DESCRIPTION NAME INPUTS RMTIN Remote Input State ENTH Enth. Switch Read High ? Supply Fan Status Switch CIRCAHPS Circ A High Press.Switch CIRCBHPS Circ B High Press.Switch Freeze Status Switch Building Pressure Static Pressure Air Temp Lvg Evap Coil...
Page 117 See Table 92. The circuit breakers for the low voltage control transformers, interface connection for the Carrier Comfort Network communication, and interface connection for the Local Equip- ment Network (LEN) communication are also located on the low voltage terminal strip.
Page 118 CEBD430351 STATUS RED LED - STATUS Fig. 29 — Controls Expansion Board (CEM) Table 91 — Control Expansion Module (CEM) Inputs and Outputs POINT POINT DESCRIPTION NAME INPUTS DHDISCIN Dehumidify Switch Input DMD_SW1 Demand Limit Switch 1 DMD_SW2 Demand Limit Switch 2 PRES Pressurization EVAC...
Page 119 BOARD TERMINAL NUMBER TB-1 - POWER CONNECTION OR DISCONNECT (in Main Control Box) L1 power supply L2 power supply L3 power supply NEUTRAL (in Main Control Box) Neutral Neutral Power CCN COMMUNICATIONS (in Main Control Box) LEN + LEN C LEN –...
Page 120 Table 92 — Field Terminal Connections (cont) BOARD TERMINAL NUMBER TB204 - FIELD CONNECTIONS (in Main Control Box) Demand Limit Redline 24 vac out Demand Limit Redline 24 vac in Demand Limit Loadshed 24 vac out Demand Limit Loadshed 24 vac in Fire Pressuration 24 vac out Fire Pressuration 24 vac in Fire Evacuation 24 vac out...
Page 121 – Table 94 — VFD Terminal Designations TERMINAL FUNCTION Three-Phase Main Circuit Input Power Supply Three-Phase AC Output to Motor, 0 V to Maximum Input Voltage Level X1-11 (GND) X1-12 (COMMON) Factory-supplied jumper X1-10 (24 VDC) X1-13 (DI-1) Run (factory-supplied jumper) X1-10 (24 VDC) Start Enable 1 (factory-supplied jumper).
Page 122: Accessory Control Components
Table 95 — Thermistors and Unit Operation Control Pressure Transducers SENSOR Thermistors Cooling Coil Thermistor input. Provided with factory-option hydronic heat. Located on face of the hydronic heating coil. Consists of 4 thermistors wired into a 2x2 array. Limit Switch Thermistor. Provided with Staged Gas Control option. Located in the heating compartment.
Page 123 J4 connectors). A 3-wire sensor bus accomplishes commu- nication between modules. These 3 wires run in parallel from module to module. Yellow LED — The MBB has one yellow LED. The Carrier Comfort Network ® (CCN) LED will blink during times of network communication.
Page 124 REMOTE AUTODIAL CCN SITE GATEWAY NON CARRIER HVAC EQUIPMENT COMFORT CONTROLLER LEGEND — Carrier Comfort Network ® — ComfortLink™ Controls — Digital Air Volume HVAC — Heating, Ventilation, and Air Conditioning — Terminal Control Unit ROOFTOP UNIT ROOFTOP UNIT HEATING/COOLING UNITS...
Page 125: Service
SERVICE All unit components can be reached Service Access — through clearly labeled hinged access doors. These doors are not equipped with tiebacks, so if heavy duty servicing is need- ed, either remove them or prop them open to prevent accidental closure.
Page 126 Fig. 34 — Door Latch Fig. 35 — Typical Filter Drier and Liquid Service Valve Access Fig. 36 — Modulating Power Exhaust Motor Access (Both Sides) NOTE: High heat consists of sections 1 and 2. Low heat consists of section 1 only. Fig.
Page 127 Fig. 39 — Burner Section Detail CERAMIC BAFFLE CLIP HEAT EXCHANGER TUBES NOTE: One baffle and clip will be in each upper tube of the heat exchanger. Fig. 40 — Removing Heat Exchanger Ceramic Baffles and Clips Fig. 41 — Combustion Blower Removal INLET GUIDE VANE MOTOR Fig.
Page 128: Adjustments
Adjustments RETURN/EXHAUST FAN MOTOR PLATE Adjust using a -in. wrench on the adjusting bolts: 1. Loosen holddown bolts. (See Fig. 43). 2. Turn the adjusting bolts to move the motor mounting plate toward or away from the fan to loosen or tighten the belts.
Page 129: Cleaning
Fig. 45 — Pulley Alignment Fig. 46 — Condenser-Fan Adjustment (Standard Units) CONDENSER FAN ADJUSTMENT (Sizes 050,070,075 With High-Capacity Evaporator Coil Option) — Each fan is supported by a formed wire mount bolted to a fan deck and covered with a wire guard. The exposed end of the fan motor shaft is protected from weather by grease.
Page 130: Lubrication
Oil Charge — ceptable oil level for each compressor is shown in Table 96. When additional oil or a complete charge is required, use only Carrier-approved compressor oil. Approved oils are: Petroleum Specialties, Inc. — Cryol 150A (factory oil charge) Texaco, Inc.
Page 131: Gas System Adjustment (48Z Only)
Yellow — moisture above 130 ppm (wet) Change filter driers at the first sign of moisture in the sys- tem. 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 132: Relief Devices
IMPORTANT: After a prolonged shutdown or service job, energize the crankcase heaters for 24 hours before starting the compressor. EVAPORATOR-FAN MOTOR PROTECTION — A manu- al reset, calibrated trip, magnetic circuit breaker protects against overcurrent. Do not bypass connections or increase the size of the breaker to correct trouble.
Page 133: Appendix A - Local Display Tables
APPENDIX A — LOCAL DISPLAY TABLES ITEM EXPANSION VIEW AUTO VIEW OF RUN STATUS → HVAC ascii string spelling out the hvac modes → Occupied ? → Mixed Air Temperature → Evaporator Discharge Tmp → Leaving Air Temperature → EC.C.P Economizer Control Point →...
Page 134 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM EXPANSION TEST Service Test Mode STOP Local Machine Disable S.STP Soft Stop Request FAN.F Supply Fan Request INDP TEST INDEPENDENT OUTPUTS → HUM.R Humidifier Relay → ALRM Remote Alarm / Aux Relay FANS TEST FANS →...
Page 135 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM AIR.T AIR TEMPERATURES → CTRL CONTROL TEMPS → → CTRL Evaporator Discharge Tmp → → CTRL Leaving Air Temperature → → CTRL Mixed Air Temperature → → CTRL R.TMP Controlling Return Temp →...
Page 136 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM EXPANSION GEN.I GENERAL INPUTS → FLT.S Filter Status Input → G.FAN Fan Request From IGC → REMT Remote Input State → ENTH Enth. Switch Read High ? → S.FN.S Supply Fan Status Switch →...
Page 137 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM EXPANSION FANS FANS → S.FAN Supply Fan Relay → S.VFD Supply Fan VFD Speed → E.VFD Exhaust Fan VFD Speed → P.E.1 Power Exhaust Relay 1 → P.E.2 Power Exhaust Relay 2 →...
Page 138 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM EDT.R EVAP.DISCHRGE TEMP RESET → RS.CF EDT Reset Configuration → RTIO Reset Ratio → LIMT Reset Limit → RES.S EDT 4-20 ma Reset Input HEAT HEATING CONFIGURATION → HT.CF Heating Control Type →...
Page 139 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM BUILDING PRESS. CONFIGS → BP.CF Building Press. Config → BP.S Building Pressure Sensor → BP.R Bldg. Press. (+/-) Range → BP.SP Building Pressure Setp. → BP.SO BP Setpoint Offset → BP.P1 Power Exhaust On Setp.1 →...
Page 140 APPENDIX A — LOCAL DISPLAY TABLES (cont) ITEM EXPANSION HUMD HUMIDITY CONFIGURATION → HM.CF Humidifier Control Cfg. → HM.SP Humidifier Setpoint → H.PID HUMIDIFIER PID CONFIGS → → H.PID HM.TM Humidifier PID Run Rate → → H.PID HM.P Humidifier Prop. Gain →...
Page 141: Appendix A — Local Display Tables
APPENDIX A — LOCAL DISPLAY TABLES (cont) ACRONYM TIME TIME OF DAY → HH.MM Hour and Minute DATE MONTH,DATE,DAY AND YEAR → MNTH Month of Year → Day of Month → Day of Week → YEAR Year SCH.L LOCAL TIME SCHEDULE →...
Page 142: Appendix B - Ccn Tables
All Z series units with ComtfortLink™ controls have a port for interface with the Carrier Comfort Network tem. On TB3 there is a J11 jack which can be used for tempo- rary connection to the CCN network or to computers equipped with CCN software like the Service Tool.
Page 143 TABLE DISPLAY NAME ECONOMZR Economizer Act.Curr.Pos. Economizer 2 Act.Curr.Pos. Economizer Act.Cmd.Pos. Economizer Active ? Economizer Control Point Outside Air Temperature Evaporator Discharge Tmp Controlling Return Temp Econo Current Min. Pos. Econo Current Min. CFM Outside Air CFM GENERAL Occupied ? Static Pressure Building Pressure Outside Air CFM...
Page 144 TABLE DISPLAY NAME TEMPS Air Temp Lvg Supply Fan Return Air Temperature Outside Air Temperature Space Temperature Space Temperature Offset Staged Gas LAT Sum Staged Gas LAT 1 Staged Gas LAT 2 Staged Gas LAT 3 Staged Gas Limit Sw.Temp Air Temp Lvg Evap Coil Cir A Sat.Condensing Tmp Cir B Sat.Condensing Tmp...
Page 145 TABLE DISPLAY NAME SET_PNT Occupied Heat Setpoint Occupied Cool Setpoint Unoccupied Heat Setpoint Unoccupied Cool Setpoint Heat-Cool Setpoint Gap VAV Occ. Cool On Delta VAV Occ. Cool Off Delta Supply Air Setpoint Supply Air Setpoint Hi Supply Air Setpoint Lo Heating Supply Air Setpt Tempering Purge SASP Tempering in Cool SASP...
Page 146 TABLE DISPLAY NAME SCHEDOVR Schedule Number Accept Global Holidays? Override Time Limit Timed Override Hours Accepting an Override: SPT Override Enabled ? T58 Override Enabled ? Allowed to Broadcast a Global Sched. Override ? SET_PNT Occupied Heat Setpoint Occupied Cool Setpoint Unoccupied Heat Setpoint Unoccupied Cool Setpoint Heat-Cool Setpoint Gap...
Page 147 TABLE DISPLAY NAME BP__ (cont) Bldg.Pres.PID Run Rate Bldg.Press. Prop. Gain Bldg.Press. Integ. Gain Bldg.Press. Deriv. Gain BP 1 Serial Number 1 BP 1 Serial Number 2 BP 1 Serial Number 3 BP 1 Serial Number 4 BP 1 Serial Number 5 BP1 Cntrl Angle Lo Limit BP 2 Serial Number 1 BP 2 Serial Number 2...
Page 148 TABLE DISPLAY NAME ECON Economizer Installed ? Econ. Act.2 Installed ? Economizer Min.Position Economizer Max.Position Economzr trim for sumZ ? Econ ChangeOver Select OA Enthalpy ChgOvr Selct Outdr.Enth Compare Value High OAT Lockout Temp OA Dewpoint Temp Limit Outside Air RH Sensor Outdoor Air CFM Sensor Economizer Min.Flow IAQ Demand Vent Min.Flow...
Page 149 TABLE DISPLAY NAME IAQ_ Economizer Min.Position IAQ Demand Vent Min.Pos. Economizer Min.Flow IAQ Demand Vent Min.Flow Econ.Min.Flow Deadband IAQ Analog Sensor Config IAQ 4-20 ma Fan Config IAQ Discrete Input Config IAQ Disc.In. Fan Config OAQ 4-20ma Sensor Config IAQ Econo Override Pos. IAQ Override flow Diff.Air Quality LoLimit Diff.
Page 150 TABLE DISPLAY NAME UNIT Machine Control Type Fan Mode (0=auto, 1=cont) Remote Switch Config CEM Module Installed Temp.Cmp.Strt.Cool Factr Temp.Cmp.Strt.Heat Factr Fan fail shuts down unit Fan Stat Monitoring Type VAV Unocc.Fan Retry time Unit Size (30-105) 50 Hertz Unit ? MAT Calc Config Type Reset MAT Table Entries? MAT Outside Air Default...
Page 151 TABLE COMPRESR (cont) Enable Compressor B1 Compressor B2 Relay Compressor B2 Feedback Curr.Sens.Brd. B2 Status CSB B2 Feedback Alarm Comp B2 Locked Out ? Compressor B2 Strikes Enable Compressor B2 COMPTRIP Comp. Security Password Low SP Circ.A Trip 48.0 Low SP Circ.B Trip 48.0 MOP 1/3 Lo SP Trip 28.0 MOP 1/3 Lo DP Trip 242.7 MOP 1/3 Hi SP Trip 75.0...
Page 152 TABLE DISPLAY NAME EC_DIAG Economizer Active ? Conditions which prevent economizer being active: Econ Act. Unavailable? Econ 2 Act. Unavailable? Enth.Switch Read High ? DBC - OAT lockout? DEW - OA Dewpt. lockout? DDBC- OAT > RAT lockout? OAEC- OA Enth Lockout? DEC - Diff.Enth.Lockout? EDT Sensor Bad ? OAT Sensor Bad ?
Page 153 TABLE DISPLAY NAME LEN_ACTU Economizer Act.Curr.Pos. Economzr 2 Act.Curr.Pos. Economizer Act.Cmd.Pos. IGV Actuator Current Pos. IGV Actuator Command Pos Humidifier Act.Curr.Pos. Humidifier Command Pos. Ht.Coil Act.Curr.Pos. Ht.Coil Command Position BP 1 Actuator Curr.Pos. BP 1 Command Position BP 2 Actuator Curr.Pos. BP 2 Command Position Find LEN bus actuator ? BELx...
Page 154 TABLE DISPLAY NAME PRESBLDG Building Pressure Return Air CFM Supply Air CFM Power Exhaust Relay 1 Power Exhaust Relay 2 BP 1 Actuator Curr.Pos. BP 1 Command Position BP 2 Actuator Curr.Pos. BP 2 Command Position Exhaust Fan VFD Speed Building Pressure Setp.
Page 155 TABLE SYSTEM Reset All Current Alarms Reset Alarm History Reset the Device Local Machine Disable Soft Stop Request Emergency Stop CEM AN4 10K temp J5, 7-8 CEM AN5 10K temp J5, 9-10 CEM AN6 10K temp J5, 11-12 CEM AN1 10K temp J5, 1-2 CEM AN4 4-20 ma J5, 7-8 CEM AN5 4-20 ma J5, 9-10 CEM AN6 4-20 ma J5, 11-12...
Page 156: Appendix C - Unit Staging Tables
Allowable Entries: Day not selected = 0 Day selected = 1 Period 1: Period 2: Period 3: Period 4: Period 5: Period 6: Period 7: Period 8: STAGING SEQUENCE — SIZE 030 UNITS — 60 Hz CIRCUIT A STAGE Lead LEGEND 0 —...
Page 157 APPENDIX C — UNIT STAGING TABLES (cont) STAGING SEQUENCE — SIZE 040 UNITS — 60 Hz CIRCUIT A STAGE Lead LEGEND 0 — Off a,b — Compressor Circuit Designation 1 — On — Unloader STAGING SEQUENCE — SIZE 040 UNITS — 50 Hz CIRCUIT A STAGE Lead...
Page 158 APPENDIX C — UNIT STAGING TABLES (cont) STAGING SEQUENCE — SIZE 055 UNITS — 50 Hz CIRCUIT A STAGE Lead LEGEND 0 — Off a,b — Compressor Circuit Designation 1 — On — Unloader STAGING SEQUENCE — SIZE 060 UNITS — 60 Hz CIRCUIT A STAGE Lead...
Page 159: Appendix C — Unit Staging Tables
APPENDIX C — UNIT STAGING TABLES (cont) STAGING SEQUENCE — SIZE 070 AND 075 UNITS CIRCUIT A STAGE Lead LEGEND 0 — Off a,b — Compressor Circuit Designation 1 — On — Unloader CIRCUIT A STAGE Lead LEGEND 0 — Off a,b —...
Page 160: Appendix D - Vfd Information
On variable air volume units with optional VFD, the supply fan speed is controlled by a 3-phase VFD. The VFD is located in the supply fan section (030-050 units) or mixing box section (055-105 units) behind an access door. The VFD speed is controlled directly by the ComfortLink™...
Page 161 RUN ENABLE START ENABLE 1 OVERRIDE SEL OVERRIDE FREQ OVERRIDE SPEED OVER PASS CODE OVERRIDE STOP FUNCTION ACCELER TIME 1 DECELER TIME 1 SWITCHING FREQ CARRIER DEFAULT 9901 ENGLISH 9902 USER 1 9904 SCALAR: FREQ 9905 460v 9906 *TBD* 9907...
Page 162 The Carrier Assistant will ask “Is this an Air Handler or Rooftop?” Select “Rooftop.” b. The Carrier Assistant will ask “Is this a High E or Premium E motor?” Select the correct efficiency type.
Page 163 APPENDIX D — VFD INFORMATION (cont) Fig. C — Standard Display Example START-UP ASSISTANT MODE — To use the Start-Up Assistant, perform the following procedure: 1. Select MENU (SOFT KEY 2). The Main menu will be displayed. 2. Use the UP or DOWN keys to highlight ASSISTANTS on the display screen and press ENTER (SOFT KEY 2).
Page 164 APPENDIX D — VFD INFORMATION (cont) CLOCK SET MODE — The clock set mode is used for setting the date and time for the internal clock of the VFD. In order to use the timer functions of the VFD control, the internal clock must be set.
Page 165 UNDERLOAD LOAD 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 166 APPENDIX D — VFD INFORMATION (cont) To reset a fault indicated by a flashing red LED, turn off the power for 5 minutes. To reset a fault indicated by a red LED (not flashing), press RESET from the control panel or turn off the power for 5 minutes.
Page 167 If installed in an appropriate envi- VFD Maintenance — ronment, the VFD requires very little maintenance. Table E lists the routine maintenance intervals recommend- ed by Carrier. Table E — Maintenance Intervals MAINTENANCE Heat Sink Temperature Every 6 to 12 months (depending...
Page 168: Appendix D — Vfd Information
APPENDIX D — VFD INFORMATION (cont) 3. The housing that holds the fan in place has barbed retain- ing clips at each corner. Press all four clips toward the center to release the barbs. 4. When the clips/barbs are free, pull the housing up to re- move from the drive.
Page 169: 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 certain mode, the programming logic is provided below. The software will proceed, step by step, until a mode is reached.
Page 170: Appendix E - Mode Selection
APPENDIX E — MODE SELECTION PROCESS (cont) HVAC mode: ("Vent — This is a normal operation mode where no heating or cooling is required and outside air is being delivered to the space to control IAQ levels. HVAC mode: ("Low Cool —...
Page 171: Index
Fire/smoke modes Alarm output Alarms and alerts Alert limit configuration Auto view of run status Basic control usage Building pressure configuration Building pressure control Carrier Comfort Network ® (CCN) CCN tables and display 5, 142-156 CCN/Linkage display table 93, 94 Cleaning ComfortLink™...
Page 172 Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480039-01 Printed in U.S.A. Form 48/50Z-5T Pg 172 7-08 Replaces: 48/50Z-4T...
Page 173: Controls Set Point And Configuration Log
CONTROLS SET POINT AND CONFIGURATION LOG MODEL NUMBER: SERIAL NUMBER: DATE: TECHNICIAN: ITEM UNIT UNIT CONFIGURATION →C.TYP Machine Control Type →CV.FN Fan Mode (0=Auto, 1=Cont) →RM.CF Remote Switch Config →CEM CEM Module Installed →TCS.C Temp.Cmp.Strt.Cool Factr →TCS.H Temp.Cmp.Strt.Heat Factr →SFS.S Fan Fail Shuts Down Unit →SFS.M Fan Stat Monitoring Type...
Page 174 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM HEAT HEATING CONFIGURATION →HT.CF Heating Control Type →HT.SP Heating Supply Air Setpt →OC.EN Occupied Heating Enabled →LAT.M MBB Sensor Heat Relocate →SG.CF STAGED GAS CONFIGS →SG.CF→HT.ST Staged Gas Heat Type →SG.CF→CAP.M Max Cap Change per Cycle →SG.CF→M.R.DB S.Gas DB min.dF/PID Rate →SG.CF→S.G.DB...
Page 175 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM ECON ECONOMIZER CONFIGURATION →EC.EN Economizer Installed? →EC2.E Econ.Act.2 Installed? →EC.MN Economizer Min.Position →EC.MX Economizer Max.Position →E.TRM Economzr Trim For SumZ ? →E.SEL Econ ChangeOver Select →OA.E.C OA Enthalpy ChgOvr Selct →OA.EN Outdr.Enth Compare Value →OAT.L High OAT Lockout Temp →O.DEW...
Page 176 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM BP (cont) →FAN.T FAN TRACKING CONFIG →FAN.T→FT.CF Fan Track Learn Enable →FAN.T→FT.TM Fan Track Learn Rate →FAN.T→FT.ST Fan Track Initial DCFM →FAN.T→FT.MX Fan Track Max Clamp →FAN.T→FT.AD Fan Track Max Correction →FAN.T→FT.OF Fan Track Internl EEPROM →FAN.T→FT.RM Fan Track Internal RAM...
Page 177 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM IAQ (cont) →AQ.SP AIR QUALITY SETPOINTS →AQ.SP→IQ.O.P IAQ Econo Override Pos. →AQ.SP→IQ.O.C IAQ Override Flow →AQ.SP→DAQ.L Diff.Air Quality LoLimit →AQ.SP→DAQ.H Diff. Air Quality HiLimit →AQ.SP→D.F.OF DAQ PPM Fan Off Setpoint →AQ.SP→D.F.ON DAQ PPM Fan On Setpoint →AQ.SP→IAQ.R Diff.
Page 178 CONTROLS SET POINT AND CONFIGURATION LOG (cont) ITEM EXPANSION CCN (cont) →SC.OV→SPT.O SPT Override Enabled ? →SC.OV→T58.O T58 Override Enabled ? →SC.OV→GL.OV Global Sched. Override ? ALLM ALERT LIMIT CONFIG. →SP.L.O SPT lo alert limit/occ →SP.H.O SPT hi alert limit/occ →SP.L.U SPT lo alert limit/unocc →SP.H.U...
Page 179: Unit Start-Up Checklist
MODEL NO.: _________________________________ SOFTWARE VERSION _________________________ DATE: _______________________________________ PRE-START-UP: VERIFY THAT DIP SWITCH SETTINGS ARE CORRECT VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT REMOVE ALL COMPRESSOR SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTRUCTIONS VERIFY INSTALLATION OF ECONOMIZER HOOD VERIFY INSTALLATION OF ALL OPTIONS AND ACCESSORIES VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT CHECK GAS PIPING FOR LEAKS (48Z ONLY)
Page 180 Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480039-01 Printed in U.S.A. Form 48/50Z-5T CL-8 7-08 Replaces: 48/50Z-4T...

Carrier WEATHERMASTER 48/50Z030-105 Operation And Service Manual

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