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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500070-01 Printed in U.S.A. Form 50RTP-1SI Pg 1 7-10 Replaces: New
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 — Install Condensate Drain . . . . . . . . . . . . . . . 8
Step 6 — Make Piping Connections . . . . . . . . . . . . . . 8
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
Step 7 — Connect Electrical Wiring . . . . . . . . . . . . . . 9
• SUPPLY VOLTAGE
• 208-VOLT OPERATION
• BLOWER SELECTION
Step 8 — Connect Low Voltage Wiring . . . . . . . . . . 34
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .35,36
Complete C Control Jumper Settings. . . . . . . . . . . 35
Complete C Control DIP Switches. . . . . . . . . . . . . . 35
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 35
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 35
Deluxe D Control Accessory Relay
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 36
Outside-Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 36
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-40
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up with WHSP Open Controls . . . . . . . . 38
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
System Claening and Flushing. . . . . . . . . . . . . . . . . . 39
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 40
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 40
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Page
Units with Aquazone™ Complete C Control . . . . . 40
Units with Aquazone Deluxe D Control . . . . . . . . . . 40
Units with WSHP Open Protocol . . . . . . . . . . . . . . . . 40
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Aquazone Deluxe D Control LED Indicators . . . . . 45
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 45
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45,46
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Water Coil
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 45
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 46
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 46
Replacing the WSHP Open Controller’s
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 47-49
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
APPENDIX A — WSHP OPEN SCREEN
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 50-55
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . CL-1, CL-2
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.
IMPORTANT: Read the entire instruction manual before
starting installation.
AQUAZONE™
50RTP03-20
Rooftop Water Source Heat Pumps
with PURON
®
Refrigerant (R-410A)