Page 2 - INSPECT EQUIPMENT; Step 2—Install on a Solid, Level Mounting Pad; Unit must be level to within; Step 3—Clearance Requirements; Fig. 2—Connecting Tubing Installation; Fig. 4—Accessory Support Feet
INSPECT EQUIPMENT File claim with shipping company prior to installation if shipmentis damaged or incomplete. Locate unit rating plate on unit cornerpanel. It contains information needed to properly install unit.Check rating plate to be sure unit matches job specifications. Step 2—Install on a Solid...
Page 3 - Fig. 5—Positioning of Sensing Bulb
Step 6—Thermostatic Expansion Valve For proper unit operation and reliability, units must beinstalled with field-supplied hard shutoff TXV. Do not installwith evaporator coils having capillary tube metering devicesor pistons. Due to system design, this unit must be installed with afactory-listed ind...
Page 4 - Step 9—Make Electrical Connections; Table 2—Accessory Usage
For buried-line applications greater than 36 in., consult your localdistributor. If refrigerant tubes or indoor coil are exposed to atmosphere, theymust be evacuated to 500 microns to eliminate contamination andmoisture in the system. OUTDOOR UNIT CONNECTED TO FACTORY-APPROVEDINDOOR UNIT Outdoor uni...
Page 5 - Fig. 8—Line Power Connections; CONTACTOR
The unit cabinet must have an uninterrupted or unbrokenground to minimize personal injury if an electrical faultshould occur. The ground may consist of electrical wire ormetal conduit when installed in accordance with existingelectrical codes. Failure to follow this warning can result in anelectric ...
Page 10 - WIRING DIAGRAM NOTES:; LEGEND; FIELD SPLICE CONNECTION
WIRING DIAGRAM NOTES: 1. CARRIER THERMOSTAT WIRING DIAGRAMS ARE ONLY ACCU- RATE FOR MODEL NUMBERS BEGINNING WITH TSTAT _ _ _ _ __ _. 2. WIRING MUST CONFORM TO NEC OR LOCAL CODES. 3. SOME UNITS ARE EQUIPPED WITH PRESSURE SWITCH(ES), TEM- PERATURE SWITCH, OR 5-MINUTE COMPRESSOR CYCLE PRO-TECTION. CONN...
Page 11 - Step 13—Check Charge; Fig. 14−Defrost Control
providing electrical potential to second heater sequencer (if used).If outdoor temperature falls below setting of outdoor thermostat(field-installed option), contacts close to complete circuit and bringon second bank of supplemental electric heat. When thermostat is satisfied, its contacts open, de-...
Page 12 - Step 14—Final Checks; Before leaving job, be sure to do the following:; CARE AND MAINTENANCE; LIQUID
Step 14—Final Checks IMPORTANT: Before leaving job, be sure to do the following: 1. Securely fasten all panels and covers. 2. Tighten service valve stem caps to 1/12-turn past finger tight. 3. Leave User’s Manual with owner. Explain system operation and periodic maintenance requirements outlined in ...