Carrier 542E- Manuals

Page 2 - Figure 3—542E Dimensional Drawing

542E REQUIRED CLEARANCE (Inches) Top of unit.................................. 48 Blower access door end ______ 30 Duct side of unit......................... 12 End opposite blower Compressor access door access end...........................12 side......................................... 30 Bottom ...

Page 4 - Figure 5—542E Suggested Rigging; inches above the highest probable snow level to prevent block; Rooftop Installation

USE SPREADER BARS TO PROTECT UNIT USE SPREADER BARS TO PROTECT UNIT A79148 Figure 5—542E Suggested Rigging I. MOVING AND SETTING UNIT IN PLACE CAUTION: Use spreader bars when rigging the unit to be lifted to protect the top and sides. Model 542E must be rigged for lifting as shown in Figure 5. Model...

Page 7 - Figure 10—Field Low-Voltage Connections Using Room; HEAT PUMP; D. Heat Anticipator Settings; compressor; A. Prestartup Procedures

A79245 Figure 10—Field Low-Voltage Connections Using Room Thermostat P/N 34427DP115 or P/N 34427DP118 HEAT PUMP LOW-VOLTAGE TERMINAL BOARD АГ9246 Figure 11—Field Low-Voltage Connections Using Room Thermostat P/N 34427DP87 board as shown in Figure 10 or 11, depending on which recommended room thermos...

Page 8 - plate for required charge. Be sure to add extra; VI. STARTUP AND ADJUSTMENTS; Sec; A. Checking Unit Operation

A80089 Figure 12—Removing Belt-Drive Blower Shipping Bracket 3. Read the following instructions on all WARNING, CAUTION, and INFORMATION labels attached to unit; for example, blower rotation labels, etc. 4. Refer to Figure 12 and remove shipping bracket from belt-drive blower units as follows: a. Lo...

Page 9 - too; B. Checking and Adjusting Refrigerant Charge

TABLE IV-HEATING PERFORMANCE PRESSURES Air Temp at Indoor Coil Inlet |°F DB) Pressure Designation (Psig) 54ZED24 542E030 542E036 Air Temperature at O utdoor C oil F°DB Air Temperature at O utdoor C oii °FDB Air Temperature at O utdoor C oil °FDB 60 50 40 30 20 10 0 -10 60 50 40 30 20 10 0 -10 60 50 ...

Page 12 - Outdoor Fan Thermostat—This control, which is; VII. SEQUENCE OF OPERATION

TABLE VII-MODEL 542D060 & 542E060- 3-PHASE UNITS-MOTOR PULLEY SETTINGS FOR AIR DELIVERY AT INDICATED EXTERNAL SP & VOLTAGE WITH WET COIL N O TE S : 542E 060 S TA N D A R D D R IV E R A N G E { 208 Volts—Standard Motor Pulley & Belt | Airflow (Ft3/Min) 0.30 0.40 0.50 0.60 0.70 0.80 0.90 T...

Page 15 - Figure 13—Typical Line-to-Line Wiring Diagram

LE G E N D I B-Transformer 2A-lndoor Blower Relay SPST (N.O.) 2C-Outdoor Fan Relay SPOT 2D-Compressor Contactor DPST (N.O.) 2P-Defrost Relay TPDT 3D1-Outdoor Fan Motor 3D2-lndoor Blower Motor 3F-Com pressor 3M-Defrost Timer 4A1-Fan Motor Capacitor 4A2-Blower Motor Capacitor 5B-Reversing Valve Soleno...

Page 16 - Pan

Clean and lubricate the direct-drive blower motor and wheel as follows; 1. Remove and disassemble blower assembly as follows; a. Remove blower and control access panels. b. Refer to unit wiring label and disconnect blower motor leads from their termination points in unit control hox. (Be sure to mar...

Page 17 - TABLE Vlll-TROUBLESHOOTING CHART-HEATING CYCLE; that blades clear the motor by H4 inch. If the blade assembly; G. Electrical Controls and Wiring

TABLE Vlll-TROUBLESHOOTING CHART-HEATING CYCLE on the insulation, motor, wiring, or air filter(s). If the drain tube is restricted, clear it with a “plumber’s snake” or similar probe device. F. Outdoor Fan CAUTION: Keep the outdoor fan free from all obstructions to ensure proper operation. Never pl...

Page 18 - TABLE IX-TROUBLESHOOTING CHART-COOLING CYCLE; H. Refrigerant Circuit; sure that all supply-and return-air grilles ae open and free

TABLE IX-TROUBLESHOOTING CHART-COOLING CYCLE ally. Be sure to disconnect the electrical power to the unit. Remove the control, blower, and compressor compartment access panels to locate all the electrical controls and wiring. Check all electrical connections for tightness. Tighten all screw connecti...