Carrier 50ZH024-060 Manuel d'instructions

50ZH024-060Packaged Heat Pump UnitsInstallation, Start-Up and Service InstructionsNOTE: Read the entire instruction manual before starting theinstalla

Step 1—Check for Refrigerant LeaksLOCATE AND REPAIR REFRIGERANT LEAKS ANDCHARGE THE UNIT AS FOLLOWS:1. Using both high- and low-pressure ports, locate

charts to determine what the suction temperature should be. Ifsuction temperature is high, add refrigerant. If suction temperatureis low, carefully re

NOTE: Be sure that all supply- and return-air grilles are open,free from obstructions, and adjusted properly.Disconnect electrical power to the unit a

Table 3—Electrical Data—50ZHUNIT 50ZHSIZE(–SERIES, IFUSED)V-PH-HZVOLTAGERANGECOMPRESSOROFMFLAIFMFLAELECTRIC HEAT SINGLE POINT POWER SUPPLYMIN MAX RLA

NOTE: Some units are equipped with a time-delay relay. Onthese units, the indoor fan remains on for 30 seconds after G or Yis deenergized.COOLINGWith

supplemental electric heat. When thermostat is satisfied, contactsopen, deenergizing contactor and relay; motors and heaters deen-ergize. The IFM may

NOTE TO EQUIPMENT OWNER: Consult your local dealerabout the availability of a maintenance contract.The ability to properly perform maintenance on this

mild detergent-and-water-solution. Rinse coils with clear water,using a garden hose. Be careful not to splash water on motors,insulation, wiring or ai

Step 6—Electrical Controls and WiringInspect and check the electrical controls and wiring annually. Besure to turn off the electrical power to the uni

Check valves are also located in the liquid lines near the strainers.The Strainers are the larger of the two components.Step 12—High Flow ValvesLocate

equipment, pay attention to precautions in the literature, tags, andlabels attached to the unit, and other safety precautions that mayapply.Follow all

Fig. 24–Typical Heat Pump Operation, Cooling ModeC95044STRAINERACCUMULATORCOMPRESSORSTRAINERLCSOUTDOOR COILINDOOR COILABDCCheck ValvesAClosedBOpenCClo

Fig. 25–50ZH Balance Point ChartC01038Balance Point Worksheet01000020000300004000050000600007000080000-100 102030405060Outdoor Air Temp (Deg F)0240300

Table 8—Troubleshooting—Cooling and HeatingSYMPTOM CAUSE REMEDYCompressor and outdoor fan will not start.Power Failure Call power companyLoss of Charg

START-UP CHECKLIST(REMOVE AND STORE IN JOB FILE)I. PRELIMINARY INFORMATIONModel No ...

Copyright 2003 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 50zh5siManufacturer reserves the right to discontinue, or change at any tim

Fig. 2—Unit Base Dimensions, 50ZH024-030UNIT ELECTRICAL CHARACTERISTICSUNIT WEIGHT CENTER OF GRAVITY IN. (MM)lb kg X Y Z50ZH024 208/230-1-60 232 106 1

Fig. 3—Unit Base Dimensions, 50ZH036–048UNIT ELECTRICAL CHARACTERISTICSUNIT WEIGHT CENTER OF GRAVITY IN. (MM)lb kg X Y Z50ZH036208/230-1-60, 208/230-3

Fig. 4—Unit Base Dimensions, 50ZH060UNIT ELECTRICAL CHARACTERISTICSUNIT WEIGHT CENTER OF GRAVITY IN. (MM)lb kg X Y Z50ZH060 208/230-1-60, 208/230-3-60

INSTALL FLANGES FOR DUCTWORK CONNECTIONS(50ZH060 ONLY)The 50ZH060 units are shipped with flanges which must befield-installed on the unit.To install u

Unit removes condensate through a 1 3/64-in. ID hole (using3/4-in. OD piping or tubing) which is located at the end of the unit.See Fig. 2-4 for locat

The field-supplied disconnect may be mounted on the unit over thehigh-voltage inlet hole. See Fig. 2-4.Operation of unit on improper line voltage cons

4. Connect the RED lead to the BLK wire from which the ORGlead was disconnected. Insulate with wirenut from Step 1.5. Using the wirenut removed from t