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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. 04-53500080-01 Printed in U.S.A. Form 50VQP-C1SI Pg 1 11-10 Replaces: New
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 6
• DISCHARGE CONFIGURATION CONVERSION
• CONTROL BOX/MOTOR ACCESS
CONFIGURATION CONVERSION
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . . . 9
• SOU ND ATTEN UATION
• EXISTING DUCT SYSTEM
Step 6 — Install Condensate Drain . . . . . . . . . . . . . . . 9
• VENTING
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . . . 10
• WATER LOOP APPLICATIONS
• GROUND-LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . . 11
• POWER CONNECTION
• SUPPLY VOLTAGE
• 420-VOLT OPERATION
Step 9 — Wire Field Controls. . . . . . . . . . . . . . . . . . . . 17
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-32
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Airflow and External Static Pressure . . . . . . . . . . . 18
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .33,34
Complete C Control Jumper Settings. . . . . . . . . . . 33
Complete C Control DIP Switches. . . . . . . . . . . . . . 33
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 33
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 33
Deluxe D Control Accessory Relay
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-36
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 35
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 35
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Page
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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 . . . . . . . 37
Units with Aquazone Deluxe D Control . . . . . . . . . . 37
COMPLETE C AND DELUXE D BOARD
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-39
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Aquazone Deluxe D Control LED Indicators . . . . . 39
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39,40
Filters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Water Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 39
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 39
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 40
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
50VQP 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™
50VQP084-300
Vertical Large Capacity Water Source Heat Pumps
with PURON
®
Refrigerant (R-410A)
50 Hz