Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 535-00094
Printed in U.S.A.
Form 50RWS-2SI
Pg 1
5-03
Replaces: 50RWS-1SI
Book 1
4
Tab
5a 5a
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . .1,2
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Step 1 — Check Jobsite
. . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 — Location of Unit
. . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 — Mounting the Unit
. . . . . . . . . . . . . . . . . . . . . . 6
Step 5 — Piping Connections
. . . . . . . . . . . . . . . . . . . . 6
• WATER SUPPLY AND QUANTITY
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
• HOT WATER GENERATOR APPLICATIONS
Unit Load Piping
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Step 6 — Electrical Wiring
. . . . . . . . . . . . . . . . . . . . . . . 10
• POWER CONNECTION
• SUPPLY VOLTAGE
• EXTERNAL LOOP POWER CONNECTION
• EXTERNAL PUMP HWG POWER CONNECTION
• 208-VOLT OPERATION
Step 7 — Low Voltage Wiring
. . . . . . . . . . . . . . . . . . . . 18
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
System Checkout
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
FIELD SELECTABLE INPUTS
. . . . . . . . . . . . . . . .19,20
Complete C Control Jumper Settings
. . . . . . . . . . . 19
Complete C Control DIP Switches
. . . . . . . . . . . . . . 19
Deluxe D Control Jumper Settings
. . . . . . . . . . . . . 19
Deluxe D Control DIP Switches
. . . . . . . . . . . . . . . . 20
Deluxe D Control Accessory Relay
Configurations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22
Operating Limits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unit Start-Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Scroll Compressor Rotation
. . . . . . . . . . . . . . . . . . . . . 21
Flow Regulation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning and Flushing
. . . . . . . . . . . . . . . . . . . . . . . . . . 21
Antifreeze
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cooling Tower/Boiler Systems
. . . . . . . . . . . . . . . . . . 22
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems
. . . . . . . . . . . . . . . . 22
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22,23
Power Up Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Page
Units with Aquazone™ Complete C Control
. . . . . 22
Units with Aquazone Deluxe D Control
. . . . . . . . . . 23
SYSTEM TEST
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-25
Test Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Retry Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Aquazone Deluxe D Control LED Indicators
. . . . . 23
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25,26
Water Coil
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Refrigerant System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Condenser Cleaning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Checking System Charge
. . . . . . . . . . . . . . . . . . . . . . . 26
Refrigerant Charging
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Air Coil Fan Motor Removal
. . . . . . . . . . . . . . . . . . . . . 26
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . 26-28
Thermistor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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.
Water-to-Water
Water Source Heat Pump Units
50RWS036-360
TM
