Table of Contents
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Installation, Start-Up and Service
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . .
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field-Fabricated Ductwork . . . . . . . . . . . . . . . . . .
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Coil Shipping Covers . . . . . . . . . .
Install Outdoor Hoods . . . . . . . . . . . . . . . . . . . . . .
Make Electrical Connections . . . . . . . . . . . . . . . . 14
Field Electrical Connections . . . . . . . . . . . . . . . . 14
Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• SPACE TEMPERATURE SENSOR (T55)
(CV Applications Only)
• SPACE TEMPERATURE AVERAGING
• HEAT INTERLOCK RELAY (VAV Units Only
- Not Necessary For DAV Applications)
Carrier Comfort Network Interface . . . . . . . . . . 23
Air Pressure Tubing . . . . . . . . . . . . . . . . . . . . . . . . 24
Gas Piping (48 Series Units Only) . . . . . . . . . . . . 26
(48MP Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . 26
Fan Isolator Adjustment . . . . . . . . . . . . . . . . . . . . 27
Check Compressor Mounting . . . . . . . . . . . . . . . 27
Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 27
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-38
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
and Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Controls Configuration and Quick Test . . . . . . 35
• ENTER JOB SET POINT VALUES
• QUICK TEST FUNCTION
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 1
PC 111
Catalog No. 534-893
Tab
1a 1b
Single Package Electric Cooling Units
and Gas Heating/Electric Cooling Units
With Product Integrated Controls
Instructions
CONTENTS
Page
Gas Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . 38
2
Check Supply Fan Rotation . . . . . . . . . . . . . . . . . 38
2
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-42
Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3
Operating Sequences . . . . . . . . . . . . . . . . . . . . . . 39
3
3
3
• COOLING (All Units)
3
3
3
3
• ADAPTIVE OPTIMAL START
(48MP Units Only)
Control Loop Checkout . . . . . . . . . . . . . . . . . . . . . 41
IAQ Control Loop Adjustment . . . . . . . . . . . . . . . 42
Lead/Lag Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 42-45
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
• PROCESSOR MODULE NO. 1
• PROCESSOR MODULE NO. 2
Default Set Points/Changing Set Points . . . . . 43
Motor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Variable Frequency Drive (VFD) . . . . . . . . . . . . . 43
• DISPLAY AND KEYPAD
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-55
Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
• UNIT CONTROL BOX
FILTER DRIERS, AND SIGHT GLASSES
• GAS HEAT SECTION
• UNIT CONTROL BOX
• ECONOMIZER DAMPER MOTORS
• RETURN-AIR FILTERS
• CONDENSER FANS AND FAN MOTORS
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printed in U.S.A.
Form 48/50MP-1SI
48MPD,MPE62L-10R
50MP62L-10R
Pg 1
12-98
Replaces: 50MP-1SI
Page
46
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Summary of Contents for Carrier 48MPD
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Page 1: Table Of Contents
• OPTION AND ACCESSORY CONTROL WIRING Carrier Comfort Network Interface ..23 Air Pressure Tubing ......24 Gas Piping (48 Series Units Only) . -
Page 2: General
Lubrication ....... . 47 • COMPRESSORS • FAN SHAFT BEARINGS •... -
Page 3: Installation
INSTALLATION Jobsite Survey — Complete the following checks be- fore installation. 1. Consult local building codes and the NEC (National Electrical Code) (ANSI/NFPA [National Fire Protection Association] 70) for special installation requirements. 2. Determine unit location (from project plans) or select unit location. - Page 4 Gas Input (Btuh) Manifold Pressure (in. wg) — Natural Gas Gas Valve Input Pressure Range in. wg psig LOW HEAT (48MPD)/HIGH HEAT (48MPE) Number of Sections Gas Input (Btuh) Stage 1 Stage 2 Efficiency (Steady State %) Temperature Rise Range (F) Minimum Heating Airflow (cfm)
- Page 5 Gas Input (Btuh) Manifold Pressure (in. wg) — Natural Gas Gas Valve Input Pressure Range in. wg psig LOW HEAT (48MPD)/HIGH HEAT (48MPE) Number of Sections Gas Input (Btuh) Stage 1 Stage 2 Efficiency (Steady State %) Temperature Rise Range (F) Minimum Heating Airflow (cfm)
- Page 6 Table 2 — Optional Power Exhaust Specifications UNIT 48/50MP Type 100% Mod Motor Hp Motor Frame Size Efficiency at Full Load (%) Standard Efficiency High Efficiency Fan Pulley Pitch Diameter (in.) Motor Pulley Pitch Diameter (in.) Fan Rpm Belts Quantity...Model No. Center Distance Range (in.) 19.9-23.3 Maximum Allowable Rpm...
- Page 7 1. To prevent the hazard of stagnant water build-up in the drain pan on the indoor section, unit cannot exceed leveling tolerances shown. 2. If a Carrier roof curb is not used, curb cross rails must be postioned to clear unit base rail locations shown.
- Page 8 1. To prevent the hazard of stagnant water build-up in the drain pan on the indoor section, unit cannot exceed leveling tolerances shown. 2. If a Carrier roof curb is not used, curb cross rails must be postioned to clear unit base rail locations shown.
- Page 9 Economizer end — 6 -0 (except power exhaust units — 10 -0 ). For smaller service and operational clearances, contact Carrier Application Engineering Department. 5. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
- Page 10 Sides — 6 -0 (except on return fan equipped units — 10 -0 ). Economizer end — 6 -0 (except power exhaust units — 10 -0 ). For smaller service and operational clearances, contact Carrier Application En- gineering Department. 5. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
- Page 11 Economizer End — 6 -0 (Except power exhaust units 10 -0 ). Control Box End — 6 -0 For smaller service and operational clearances, contact Carrier Application Engineering department. 5. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
- Page 12 Economizer End — 6 -0 (Except power exhaust units 10 -0 ). Control Box End — 6 -0 For smaller service and operational clearances, contact Carrier Application Engineering department. 5. Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.
- Page 13 WEIGHT UNIT Unit 48MP Unit 50MP SIZE 16,810 7 624 16,550 7 507 18,060 8 190 17,800 8 074 22,660 10 295 22,400 10 161 24,660 11 203 24,750 11 227 25,110 11 408 25,100 11 385 NOTE: All lifting lugs must be used when rigging with eight or ten cables and spread with four or five 95 in.
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Page 14: Make Electrical Connections
PITCH DRAIN LINE SEALANT TO OFFSET LINE FRICTION 2" MIN. 7" MIN. SLAB MOUNT DRAIN Fig. 9 — Condensate Drain Piping Details Make Electrical Connections POWER SUPPLY — Electrical characteristics of available power supply must agree with unit nameplate rating. Supply voltage must be within the limits shown in Table 5. - Page 15 Disconnect must be located within sight of the unit and read- ily accessible from the unit in compliance with NEC Article 440-14. All field wiring must comply with NEC and all local codes. Size wire based on MCA (Minimum Circuit Amps) value shown on the unit informative plate.
- Page 16 VOLTAGE COMP UNIT VOLTAGE RANGE NO. A1 48MP/ 3 Ph, 60 Hz 50MP 65.4 46.8 43.6 43.6 43.6 LEGEND COMP — Compressor — Full Load Amps — Nominal Horsepower — Locked Rotor Amps — Minimum Circuit Amps (for wire sizing) MOCP —...
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Page 17: Space Temperature Averaging
(TB1), a jumper between pins E2 and E3, and an RJ11 female connector. The RJ11 connector is used to tap into the Carrier Comfort Network (CCN) at the sensor. See RJ11 Plug Wiring section on page 24 to con- nect the RJ11 connector to the CCN. - Page 18 Fig. 13 — Space Temperature Sensor Wiring LEGEND COM — Common — Switch — Terminal — Terminal Block — Thermostat Heating Accessory Field Wiring *Constant volume applications only.
- Page 19 TO PROCESSOR MODULE NO. 1 SENSOR 1 SPACE TEMPERATURE AVERAGING — 4 SENSOR APPLICATION TO PROCESSOR MODULE NO. 1 LEGEND TB — Terminal Block Factory Wiring Field Wiring SPACE TEMPERATURE AVERAGING — 9 SENSOR APPLICATION Fig. 14 — Space Temperature Sensor Averaging SENSOR 2 SENSOR 1 SENSOR 2...
- Page 20 DSIO2 CHANNEL LEGEND TB — Terminal Block Field Wiring Component Terminal Terminal Block Terminal Fig. 15 — Heat Interlock Relay ENTHALPY CONTROL REMOVE RESISTOR Fig. 16 — Differential Enthalpy Sensor LEGEND DSIO — Relay Module Fig. 17 — Remote Start FIELD CONTROL WIRING...
- Page 21 Component Terminal Terminal Block Terminal Fig. 21 — Outdoor Airflow Control Fig. 22 — Timed Discrete Output PSIO NO. 2 HUM VLV CARRIER PART NO. HK35AA001 LEGEND TB — Terminal Block Field Wiring Component Terminal Fig. 23 — Humidifier PSIO NO.
- Page 22 DPT1 DPT2 SPT1 SPT2 LEGEND DPT — Duct Pressure Transducer SPT — Suction Pressure Transducer — Terminal Block TRANSDUCER ACCESSORY SUCTION GAS TEMPERATURE THERMISTOR SUCTION GAS TEMPERATURE THERMISTOR Fig. 27 — Transducer/Thermistor COMM CCN NETWORK LEVEL II COMMUNICATIONS BUS (COMM) Fig.
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Page 23: Carrier Comfort Network Interface
PSIO1 CHANNEL 15 Fig. 29 — Optional VFD — Wiring Connections Carrier Comfort Network Interface 48/50MP units can be connected to the CCN if desired. The communication bus wiring is supplied and installed in the field. It consists of shielded, 3-conductor cable with drain wire. -
Page 24: Air Pressure Tubing
CCN connector, and run new cable if nec- essary. A short in one section of the bus can cause problems with all system elements on the bus. LEGEND — Carrier Comfort Network — Common COMM — Communications — Ground *Constant volume applications only. - Page 25 Fig. 31 — Auxiliary Control Box Location VARIABLE FREQUENCY DRIVE DUCT PRESSURE TRANSDUCER BUILDING PRESSURE TRANSDUCER (HIDDEN) Fig. 32 — Auxiliary Control Box (50MP70M Unit Shown) FACTORY INSTALLED TUBING LEGEND BPC — Building Pressure Controller DPC — Duct Pressure Controller Fig.
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Page 26: Gas Piping (48 Series Units Only)
3 flue hoods, 3 flue deflector hoods, and one inlet air hood to be field installed. See Fig. 35. The low heat units (48MPD) have 2 flue hoods, 2 flue deflector hoods, and one inlet air hood. Remove the shipping block offs and shipping tape from the flue openings in the access panel and the corner post. -
Page 27: Fan Isolator Adjustment
FLUE DEFLECTOR BAFFLE PUSH BAFFLE DOWN SO THESE 2 HOLES ALIGN Fig. 38 — Flue Deflector Baffle (Assembled) Fan Isolator Adjustment — Remove shipping hard- ware from both the supply fan and the optional exhaust fan. The indoor fan shipping blocks on both the supply fan and the optional power exhaust fan (4 per fan) must be removed from each corner of the fan sled before starting unit. -
Page 28: Installation
24 hours. Oil Charge section on page 49 for Carrier-approved oils. 9. Perform leak test. Be sure there are no refrigerant leaks. All units are shipped with a complete operating charge of R-22 and should be under sufficient pressure for leak testing after installation. -
Page 29: Compressor Oil
Refer to Table 1 for factory-supplied wheel speeds and drive set data. If different wheel speeds are required for an application, Carrier recommends that the installer contact the nearest Brown- ing dealer. The Browning dealer can develop the required information for the fan drive set. - Page 30 Table 8 — Fan Performance (Forward Curved) — 48/50MP62L* AIRFLOW 0.50 (Cfm) 16,000 18,000 20,000 22,000 24,000 11.0 26,000 14.2 28,000 18.0 30,000 22.5 32,000 27.9 AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) AIRFLOW 2.00 (Cfm) 16,000 10.1 18,000 11.5 20,000 13.4 22,000 15.8...
- Page 31 Table 10 — Fan Performance (Forward Curved) — 48/50MP82N* AIRFLOW 0.50 (Cfm) 22,000 24,000 26,000 28,000 11.0 30,000 13.1 32,000 15.5 34,000 18.2 36,000 21.2 38,000 24.6 40,000 28.3 42,000 32.5 AIRFLOW 2.00 (Cfm) 22,000 15.0 24,000 16.6 26,000 18.6 28,000 20.8 30,000...
- Page 32 Table 12 — Fan Performance (Forward Curved) — 48/50MP10R* AIRFLOW 0.50 (Cfm) 26,000 28,000 11.2 30,000 13.2 32,000 15.6 34,000 18.4 36,000 21.5 38,000 24.9 40,000 28.7 42,000 33.0 44,000 37.6 46,000 42.6 48,000 48.1 50,000 54.0 52,000 60.5 AIRFLOW 2.00 (Cfm) 26,000...
- Page 33 Table 14 — Fan Performance (Air Foil) — 48/50MP70M* AIRFLOW 0.50 0.75 (Cfm) 18,000 20,000 22,000 24,000 10.0 11.0 26,000 12.3 13.4 28,000 14.8 16.0 1002 30,000 1011 17.4 1034 18.8 1056 32,000 1071 20.7 1093 22.1 1114 34,000 1129 24.3 1150 25.7...
- Page 34 Table 16 — Fan Performance (Air Foil) — 48/50MP90P* AIRFLOW 0.50 0.75 (Cfm) 24,000 5.70 6.78 26,000 8.78 7.93 28,000 7.98 9.20 30,000 9.36 10.6 32,000 10.6 12.2 34,000 12.5 13.9 36,000 14.3 15.8 38,000 16.3 18.0 40,000 18.5 20.1 42,000 20.9 22.5...
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Page 35: Supply Fan Status Switch (Fs
48/50MP 50% Air 62L, 70M 82N, 90P, 10R Table 21 — Air Quantity Limits (cfm) MINIMUM UNIT GAS HEATING SIZE MINIMUM MAXIMUM (Low Heat 48/50MP Units) 48MPD 16,000 32,000 12,850 18,000 36,000 12,850 21,000 42,000 14,700 23,000 46,000 14,700 26,000... -
Page 36: Keypad And Display Module (Hsio) Configuration
CONTROL POINT CONTROL (Approx Deg F) CURVE AT 50% RH Fig. 46 — Psychrometric Chart for Enthalpy Control NOTES: 1. Switches shown in high enthalpy state. Terminals 2 and 3 close on enthalpy decrease. 2. When standard economizer is used with accessory differential enthalpy sen- sor, set enthalpy control to ‘‘D’’... -
Page 37: Configure Unit Controls And Functions
If the unit is being used in a CV application, then perform the following: 1. Enter the configuration function by pressing 2. Scroll down to unit type. TYPE 1 will be displayed. 3. Press to change the unit type to CV. ENTER 4. -
Page 38: Gas Pressure Check
SET POINT SUBFUNCTION Unit Type CV Fan Mode Economizer Minimum Damper Position Heating Occupied* Cooling Occupied Cooling Unoccupied Heating Unoccupied Static Pressure Supply Air Temperature Date and Time Override Schedules† Schedule I Periods LEGEND — Constant Volume VAV — Variable Air Volume *Requires Occupied Heating function enabled. -
Page 39: Economizer
General NOTE: If unit is equipped with REMOTE START function, place the LOCAL/REMOTE switch in the LOCAL (Off) position. 1. Put the ON/OFF switch in the ON position. Close the con- trol circuit breaker (CCB), which will energize the con- trol circuit and the crankcase heaters. -
Page 40: Unoccupied Cooling
The 48MPD units have 2 gas heat sections. The 48MPE units have 3 gas heat sections. Each individual section op- erates in the same manner. -
Page 41: Control Loop Checkout
Control Loop Checkout The checkout and adjustment of control loops should only be done by certified Carrier Comfort Network (CCN) technicians. The following checkout procedure is offered as a guide and presumes the user has obtained basic knowledge of controls through CCN training. -
Page 42: Iaq Control Loop Adjustment
NOTE: For better tuning, the building supervisor or service tool should be used to adjust the proportional and integral terms. Contact your Carrier representative for more details. IAQ Control Loop Adjustment — air quality) control loop is different from the other control loops. -
Page 43: Keypad And Display Module (Hsio)
KEYPAD AND DISPLAY MODULE (HSIO) IMPORTANT: The HSIO (human sensor input/output) keypad and display module is required for initial start-up of these units. All units are shipped in standby mode, and the HSIO must be used to change the unit to run mode. - Page 44 Table 29 — HSIO Keypad and Display Module Functions and Subfunctions Status FUNCTION Current Alarms Current Alerts Current Operating Modes Capacity Stages Current Operating Set Points System Temperatures System Pressures Inputs Analog Outputs Discrete Outputs Run/ Standby — — — —...
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Page 45: Service
Table 30 — Variable Frequency Drive (VFD) Display DISPLAY ACTION Fref Not used. Displays the output frequency at which the VFD is cur- Fout rently operating. This is a display only function. The user cannot change this displayed value. Displays the level of output current that the VFD is cur- lout rently producing. -
Page 46: Compressors
Fig. 50 — Door Latch UNIT CONTROL BOX — Viewed facing compressors, the control box is at the left end of the unit. Incoming power for controls, refrigerant system, and fan system enters through the control box. The control box contains power compo- nents and electronic controls. -
Page 47: Lubrication
MAIN BURNERS (48MP Only) — At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames. Refer to Main Burners section on page 52. FLUE GAS PASSAGEWAYS (48MP Only) — The flue col- lector box and heat exchanger cells may be inspected by re- moving heat exchanger access panel (Fig. - Page 48 Fig. 55 — Charging Chart — Unit 48/50MP62L Fig. 56 — Charging Chart — Unit 48/50MP70M Fig. 57 — Chrging Chart — Unit 48/50MP82N...
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Page 49: Oil Charge
Chartreuse — 45 to 130 ppm (caution!) Yellow 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 accu- rate reading. -
Page 50: Liquid Line Service Valve
Replace the filter cores whenever the moisture/liquid in- dicator shows moisture in the system. Follow instructions on the packaging for the replacement cores for disassembling and reassembling the filter assem- blies and housings. Liquid Line Service Valve — ahead of the filter drier, this valve has a tion for field charging. - Page 51 CYLINDER HEADS SIGHT RAIL PRESSURE RELIEF GLASS VALVE NOTE: Units 48/50MP62L compressors are pan mounted. Units 48/50MP70M and 82N compressors are mounted on rails. MUFFLER CRANKCASE EQUALIZER HEATER LINE Fig. 60 — 06E Compressors, Typical Fig. 61 — Motor Plate Adjustment HIGH- PRESSURE SWITCH...
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Page 52: Pulley Alignment
PULLEY ALIGNMENT — For proper belt life, the motor and fan pulleys must be properly aligned. To check, first turn off unit power. Place a straightedge against the motor and fan pulleys. See Fig. 62. If the pulleys are properly aligned, the straightedge should be parallel to the belts. -
Page 53: Variable Frequency Drive (Vfd)
CONDENSER-FAN MOTOR PROTECTION — Each condenser-fan motor is internally protected against over- temperature. They are also protected against a severe over- current condition by manual reset, calibrated trip, magnetic circuit breakers on a common circuit. As with the circuit break- ers, do not bypass connections or increase breaker size to correct trouble. -
Page 54: Processor Module(S) (Psio)
Processor Module(s) (PSIO) INPUTS — Each input channel has 3 terminals; 2 are used. OUTPUTS— Output of the PSIO module is 24 vdc or 4 to 20 mA dc. There are 3 terminals; 2 are used. REPLACING DEFECTIVE PSIO MODULES — The re- placement part number is printed on a label on the front of the PSIO module. -
Page 55: Hot Gas Bypass
Hot Gas Bypass — An optional hot gas bypass system may be factory installed on circuit no. 1. This system will introduce discharge vapor from the compressor discharge line into the distributors and evaporator coil circuits on circuit no. 1 when suction pressures drop to damaging levels. No field adjustments of the hot gas bypass valve should be required. -
Page 56: Troubleshooting And Diagnostics
TROUBLESHOOTING AND DIAGNOSTICS PROBLEM COMPRESSOR DOES NOT RUN Contactor Open 1. Power off. 2. Fuses blown in field power circuit. 3. Alarm tripped. 4. No control power. 5. Compressor circuit breaker tripped. 6. Safety device lockout circuit active. 7. Low-pressure switch open. 8. -
Page 57: Troubleshooting
TROUBLESHOOTING AND DIAGNOSTICS (cont) PROBLEM COMPRESSOR RUNNING BUT COOLING INSUFFICIENT Suction Pressure Low 1. Refrigerant charge low. 2. Head pressure low. 3. Air filters dirty. 4. Expansion valve power head defective. 5. Indoor coil partially iced. 6. Indoor airflow restricted. Suction Pressure High 1. - Page 58 Refer to Fig. 65 for IGC troubleshooting information. LEGEND IGC — Integrated Gas Unit Controller PIC — Product Integrated Control Fig. 65 — IGC Control (Heating) — 48MP Units Only...
- Page 60 Course descriptions and schedules are in our catalog. [ ] Packaged Service Training Copyright 1998 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 1 PC 111 Catalog No.
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Page 61: Start-Up Checklist
MODEL NO.: DATE: I. PRE-START-UP: VERIFY THAT UNIT IS LEVEL VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT LOOSEN ALL SHIPPING HOLDDOWN BOLTS AND REMOVE SHIPPING BRACKETS PER INSTRUCTIONS VERIFY THAT COMPRESSOR SUSPENSION SPRINGS HAVE BEEN LOOSENED PER INSTRUCTIONS VERIFY ASSEMBLY OF ECONOMIZER HOOD VERIFY INSTALLATION OF EXHAUST HOOD VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS... - Page 62 III. PRELIMINARY CHECKLIST ITEMS (cont) CHANGES TO DEFAULT VALUES RECORD ALL CHANGES MADE TO FACTORY DEFAULT VALUES IV. START-UP CHECK EVAPORATOR FAN SPEED AND RECORD. CHECK CONDENSER FAN SPEED AND RECORD. AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS: OIL PRESSURE SUCTION PRESSURE SUCTION LINE TEMP...
- Page 63 KEYBOARD ENTRY ENTER ENTER ENTER ENTER ENTER ENTER through through NOTE: Data in brackets [ ] is default value. CONTROL CONFIGURATION DISPLAY VALUES IN [ ] INDICATE FACTORY DEFAULTS LOG ON Enter password followed by LOGGEDON Logged on okay FACT CFG Factory configuration TYPE X Unit type (0 = CV, 1 = VAV) [Default is 1]...
- Page 64 KEYBOARD ENTRY ENTER ENTER NOTES: Copyright 1998 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 1 PC 111 Catalog No. 534-893 1a 1b CONSTANT VOLUME CONTROL CONFIGURATION...
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