2 | Table of contents TW Series Water to Water
TW Series Water to Water6720220047 (2016/02) Subject to change without prior notice
TABLE OF CONTENTS
Key to Symbols..................................................................3
Safety Warnings................................................................3
Model Nomenclature.......................................................... 4
Standard TW package ........................................................ 5
General Description ..................................................... 5
Moving and Storage........................................................... 5
Initial Inspection.......................................................... 5
Location..................................................................... 5
Installation.........................................................................5
Piping............................................................................... 6
Electrical .......................................................................... 6
Safety Devices and the UPM Controller ........................... 7
Options............................................................................. 9
Heat Recovery Package (HRP) ....................................... 9
DPS Water Flow Proving ............................................... 9
Pump Relay................................................................. 9
Comfort Alert Module ................................................... 9
Heat Recovery Package ................................................... 10
Water Tank Preparation.............................................. 10
HR Water Piping ........................................................ 10
Water Tank Refill........................................................ 10
Initial Start-Up........................................................... 10
Sequence Of Operation.................................................... 11
Cooling Mode............................................................ 11
Heating Mode............................................................ 11
Sequence Of Operation Flow........................................12
Application Considerations .............................................. 13
Well Water Systems ................................................... 13
Cooling Tower/Boiler Systems.....................................13
Geothermal Systems.................................................. 14
System Checkout ............................................................15
Considerations...........................................................15
Unit Start-Up................................................................... 16
Maintenance ................................................................... 16
Decommissioning.............................................................16
Water To Water Unit Controller..........................................16
Features....................................................................16
Unit Sensors.....................................................................16
Water Sensor.............................................................16
Changeover Sensor.....................................................16
Modes Of Operation..........................................................16
Off Mode...................................................................16
Heating Mode.............................................................16
Cooling Mode.............................................................17
Auto Changeover Mode................................................17
Unit Protection...........................................................17
Manual Lockout................................................................18
Lead-Lag...................................................................18
Pump Cycling.............................................................18
Operating Instructions......................................................18
User Interface............................................................18
UP Button..................................................................18
Down Button..............................................................18
LED Indicators............................................................19
User Adjustable Settings Chart..........................................19
Setting up the controller....................................................19
Initial Configuration..........................................................20
Unit Check-out sheet........................................................21
Troubleshooting ..............................................................22
Unit Troubleshooting...................................................22
Confort Alert Module-Flash Codes.................................23
HRP Troubleshooting...................................................24
Unit Lockouts ............................................................24
Electrical Data Table ........................................................25
UPM Board LED Indicators.................................................25
Water Quality Table..........................................................26
Wiring Diagrams..............................................................27
Dimensional Drawings......................................................33
Terminology ....................................................................36
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