Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500145-01
Printed in U.S.A.
Form 50PSW-4SI
Pg 1
11-21
Replaces: 50PSW-3SI
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 —
Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 —
Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 —
Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 —
Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 —
Connect Piping . . . . . . . . . . . . . . . . . . . . . . 8
• WATER SUPPLY AND QUALITY
• COOLING TOWER/BOILER APPLICATION
• WELL WATER SYSTEMS
• EARTH COUPLED GEOTHERMAL SYSTEMS
Step 6 —
Wire Field Power Supply . . . . . . . . . . . . . 13
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Step 7 —
Wire Control Connections . . . . . . . . . . . . 23
• COMPLETE C AND DELUXE D CONTROL
• AUXILIARY RELAY (DELUXE D ONLY)
• ENERGY MANAGEMENT SWITCH (DELUXE D
ONLY)
• PHASE MONITOR
• ALARM OUTPUT
• W2W OPEN CONTROL
• CONTROL TRANSFORMER
Step 8 —
Configure Unit Control Components . . . 23
• UPM CONFIGURATION
• UPM FEATURES
• CONSIDERATIONS
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
• ENVIRONMENT
• POWER SUPPLY
Scroll Compressor Rotation . . . . . . . . . . . . . . . . . . 26
Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . 27
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
• FREEZE PROTECTION
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
• FLOW VERIFICATION
• FLOW REGULATION
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . 28
Ground Coupled, Closed Loop and Plateframe Heat
Exchanger Well Systems . . . . . . . . . . . . . . . . . . . 28
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Unit Protection Model (UPM) . . . . . . . . . . . . . . . . . .31
Units with Complete C or Deluxe Controls . . . . . . .31
• COOLING MODE
• HEATING MODE
Units with W2W Open Controls . . . . . . . . . . . . . . . .31
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . .31
WSHP Open W2W . . . . . . . . . . . . . . . . . . . . . . . . . . .31
• OCCUPANCY
• BAS (BUILDING AUTOMATION SYSTEM) ON/OFF
• REMOTE OCCUPANCY CONTACT
• SHUTDOWN
• POWER FAIL RESTART DELAY
• CHANGEOVER TIMEGUARD
• LOAD PUMP
• SOURCE WATER ISOLATION VALVE/SOURCE
WATER PUMP OUTPUT
• COOLING (SINGLE MODULE)
• ADDITIONAL COOLING FUNCTIONS
• COOLING CONTROL MODES
• HEATING (SINGLE MODULE)
• ADDITIONAL HEATING FUNCTIONS
• HEATING CONTROL MODES
• MUTLI-UNIT MASTER
• EQUIPMENT ALARM
• SERVICE TEST
Configuring Multiple W2W WSHP for
Master/Slave Operation . . . . . . . . . . . . . . . . . . . . .38
• W2W MASTER CONFIGURATION PARAMETERS
• W2W SLAVE CONFIGURATION
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . .40
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .40
• GRAVITY FLOW METHOD
• FORCED CIRCULATION METHOD
Checking System Charge . . . . . . . . . . . . . . . . . . . . .41
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . .41
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .41
50PSW START-UP CHECKLIST. . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
IMPORTANT: Read the entire instruction manual before
starting installation.
Aquazone
™
50PSW025-420
Water-to-Water Source Heat Pump
with Puron
®
Refrigerant (R-410A)
Summary of Contents for Aquazone 50PSW025
Page 15: ...15 Fig 9 Unit Size 122 1 Phase Complete C Deluxe D Control Package DWG No 50PSW120000 Rev 3 ...
Page 17: ...17 Fig 11 Unit Sizes 122 1 Phase W2W Open Control Package DWG No 50PSW120001 Rev 4 ...
Page 21: ...21 Fig 15 Unit Size 122 240 420 3 Phase W2W Open Control Package DWG No 50PSW320001 Rev 3 ...
Page 36: ...36 Fig 22 W2W Open Control Board ...
Page 37: ...37 Fig 23 Unit Protection Module UPM Sequence Of Operation ...
