CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
•STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Location of Unit . . . . . . . . . . . . . . . . . . . . . . . . 3 Step 4 — Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . 6 Step 5 — Condensate Drain . . . . . . . . . . . . . . . . . . . . . . 6 Step 6 — Piping Connections . . . . . . . . . . . . . . . . . . . . 6
•WATER LOOP APPLICATIONS
•GROUND-WATER APPLICATIONS
•GROUND-LOOP APPLICATIONS
Step 7 — Electrical Wiring. . . . . . . . . . . . . . . . . . . . . . . . 7
•SUPPLY VOLTAGE
•208-VOLT OPERATION
•BLOWER SELECTION
Step 8 — Low Voltage Wiring. . . . . . . . . . . . . . . . . . . . 14
•THERMOSTAT CONNECTIONS
•WATER FREEZE PROTECTION
•AIR COIL FREEZE PROTECTION
•ACCESSORY CONNECTIONS
•WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14,15 System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .15,16
C Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 15
C Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 15
D Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 15
D Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 15
D Control Accessory Relay Configurations . . . . . 16
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 16
Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 16
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-18
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 17
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 17
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 17
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 18
Ground Coupled, Closed Loop and Plateframe Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 18
Page
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Units with Aquazone™ Complete C Control . . . . . 19 Units with Aquazone Deluxe D Control . . . . . . . . . . 19
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19,20 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Aquazone Deluxe D Control LED Indicators . . . . . 20
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 21 Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 21 Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 22 Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . 22-25 Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . CL-1, CL-2
IMPORTANT: Read the entire instruction manual before starting installation.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo- nents. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func- tions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precau- tions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.
Improper installation, adjustment, alteration, service, main- tenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individ- ual instructions packaged with the kits or accessories when installing.
