CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
•STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 4 — Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 5 — Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . 5
•WATER SUPPLY AND QUALITY
•WATER LOOP APPLICATIONS
•GROUND-WATER APPLICATIONS
•GROUND-LOOP APPLICATIONS
•UNIT LOAD PIPING
Step 6 — Wire Electrical Connections . . . . . . . . . . . . 7
•POWER CONNECTION
•SUPPLY VOLTAGE
•EXTERNAL LOOP POWER CONNECTION
•220-V OPERATION
•380-V OPERATION
Step 7 — Wire Low Voltage Connections . . . . . . . . 12
•THERMOSTAT CONNECTIONS
•WATER FREEZE PROTECTION
•ACCESSORY CONNECTIONS
•WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .13,14
Complete C Control Jumper Settings. . . . . . . . . . . 13
Complete C Control DIP Switches. . . . . . . . . . . . . . 13
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 13
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 13
Deluxe D Control Accessory Relay
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 14
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 16
Ground Coupled, Closed Loop and Plateframe Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 16
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Units with Aquazone Complete C Control . . . . . . . 16 Units with Aquazone Deluxe D Control . . . . . . . . . . 16 SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16,17
Page
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Aquazone Deluxe D Control LED Indicators . . . . . 17
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18,19
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 19
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 19-21
50PSW 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- tion of cleaning coils. All other operations should be performed by trained service personnel. When working on air-condition- ing equipment, observe precautions 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.
Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC, U.S.A.) for special installation requirements.
Understand the signal words — DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARN- ING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.
