CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
• STORAGE
• PROTECTION
• EXISTING DUCT SYSTEM
• INSTALLATION
• VENTING
• GROUND-WATER APPLICATIONS
• EXTERNAL LOOP POWER CONNECTION
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-20
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500077-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Horizontal Water Source Heat Pumps
with PURON
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Page
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24,25
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25,26
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-29
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Air Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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
Form 50HQP-C1SI
AQUAZONE™
50HQP072-120
®
Refrigerant (R-410A)
Pg 1
11-10
50 Hz
Page
Replaces: New