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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. 04-53500007-01 Printed in U.S.A. Form 50R-5SI Pg 1 6-07 Replaces: 50R-4SI
Book 1 4
Ta b 5 a 5 a
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . 14
• FIELD CONVERSION OF DISCHARGE AIR
Step 4 — Mounting the Unit . . . . . . . . . . . . . . . . . . . . . 15
• HORIZONTAL UNITS
• VERTICAL UNITS
Step 5 — Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• SOU ND ATTEN UATION
• EXISTING DUCT SYSTEM
Step 6 — Condensate Drain . . . . . . . . . . . . . . . . . . . . . 16
• HORIZONTAL UNITS
• VERTICAL UNITS
• VENTING
Step 7 — Piping Connections . . . . . . . . . . . . . . . . . . . 16
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
Step 8 — Field Power Supply Wiring . . . . . . . . . . . . 18
• POWER CONNECTION
• SUPPLY VOLTAGE
• 208-VOLT OPERATION
Step 9 — Field Control Wiring. . . . . . . . . . . . . . . . . . . 18
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-30
System Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PSC Blower Speed Selection . . . . . . . . . . . . . . . . . . 27
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 30-32
C Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30
C Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30
D Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30
D Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30
Units with Modulating Hot Water Reheat
(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
D Control Accessory Relay Configurations . . . . . 32
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 32
Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 32
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-36
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 33
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 33
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 34
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Page
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 36
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 36
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Units with Aquazone Complete C Control . . . . . . . 36
Units with Aquazone Deluxe D Control . . . . . . . . . . 36
Units with HWR Option. . . . . . . . . . . . . . . . . . . . . . . . . . 37
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37,38
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Aquazone Deluxe D Control LED Indicators . . . . . 38
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-40
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Water Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 38
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Fan Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . 39
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condenser Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking System Charge . . . . . . . . . . . . . . . . . . . . . 39
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 40
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-42
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
50RHC,RVC,RHR,RHS,RVR,RVS,RDS
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, mainte-
nance, or use can cause explosion, fire, electrical shock or other
conditions which may cause personal injury or property dam-
age. Consult a qualified installer, service agency, or your distrib-
utor or branch for information or assistance. The qualified in-
staller or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instruc-
tions packaged with the kits or accessories when installing.
IMPORTANT: Read the entire instruction manual before
starting installation.
AQUAZONE™
50RHC,RVC,RHR,RHS,
RVR,RVS,RDS006-060
Water Source Heat Pump Units