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664B
13 SEER SINGLE--PACKAGED HEAT PUMP SYSTEM
WITH R--22 REFRIGERANT SINGLE AND THREE PHASE
2--5 NOMINAL TONS (SIZES 024--060)
Installation Instructions
NOTE: Read the entire instruc tion manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.........................
INTRODUCTION 2...................................
RECEIVING AND INSTALLAT ION 2--7..................
Check Equipment 2..................................
Identify Unit 2....................................
Inspect Shipme nt 2.................................
Provide Unit Support 2...............................
Slab Mount 2.....................................
Ground Mount 2..................................
Provide Clearances 2.................................
Place Unit 2........................................
Select and Install Ductwork 2...........................
Configuring Units for Downflow (Vertical) Discharge 3....
Connect Condensate Drain 3...........................
Install Electrical Connections 6.........................
High-- Voltage Connections 6.........................
Routing Power Leads Into Unit 6......................
Connecting Ground Lead to Unit Ground 6..............
Routing Control Power Wires 6......................
Accessory Electric Heat Wiring 6......................
PRE --START--UP 7....................................
START--UP 8 --17......................................
Check for Refrigerant Leaks 8..........................
Start-- Up Cooling and Make Adjustments 8................
Checking Cooling and Heating Control Operation 8.......
Refrigerant Charge 8.................................
No Charge 8......................................
Low Charge Cooling 8..............................
Heating Mode Charge 8.............................
Indoor Airflow and Airflow Adjustments 9................
Unit Controls 9.....................................
High-- Pressure Relief Valve 9.........................
L o s s -- o f -- C h a r g e S w i t c h 9...........................
Compressor Ove rload 10............................
Compressor Rotation 10...............................
Sequence of Operation 10.............................
Fan Operation 10..................................
A05194
Fig. 1 -- Unit 664B
Cooling Operation 10, 17............................
Heating Operation 17...............................
Continuous Fan 17.................................
Defrost 17.......................................
Electric Resistanc e Heating 17........................
MAINTENANCE 17--20................................
Air Filter 18........................................
Unit Top Removal 18.................................
Indoor Blower and Motor 18...........................
Outdoor Coil, Indoor Coil, and Condensate Drain Pan 19.....
Outdoor Fan 19.....................................
Electrical Controls and Wiring 19.......................
Refrige rant Circuit 20.................................
Indoor Airflow 20...................................
Metering Devices 20.................................
Liquid Line Strainers 20...............................
High Flow Valves 20.................................
TROUBLESHOOTING 20..............................
START--UP CHECKLIST 20............................