Trane CVHH Installation, Operation And Maintenance Manual page 6

Table of Contents
Current Transform er and Potential Transform -
er Wire Sizing . . . . . . . . . . . . . . . . . . . . . . . . 50
Pow er Supply Wiring
Three-Phase Pow er . . . . . . . . . . . . . . . . . 51
Circuit Breakers and Fused Disconnects
CE for Control Pow er Transform er (CPTR) Op-
tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
CE for Starter or Drive . . . . . . . . . . . . . . . 52
Control Pow er Transform er (CPTR) Option
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Pow er Factor Correction Capacitors (Optional)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Interconnecting Wiring
Starter to M otor Wiring (Rem ote-M ounted
Starters Only) . . . . . . . . . . . . . . . . . . . . . . . . 57
Ground Wire Term inal Lugs . . . . . . . . . . 57
Term inal Clam ps . . . . . . . . . . . . . . . . . . . 58
Wire Term inal Lugs . . . . . . . . . . . . . . . . . 58
Bus Bars . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Starter to Control Panel Wiring
M edium Voltage Installation
M edium Voltage M otor . . . . . . . . . . . . . . 60
M otor Term inal Box . . . . . . . . . . . . . . . . . 60
M otor Supply Wiring
System Control Circuit Wiring (Field Wiring)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Water Pum p Interlock Circuits and Flow
Sw itch Input . . . . . . . . . . . . . . . . . . . . . . . 64
Tem perature Sensor Circuits
Optional Control and Output Circuits . . . 66
Optional Tracer Com m unication Interface 66
Unit Start-up/Com m issioning
Starter M odule Configuration
Schem atic Wiring Draw ings
Operating Principles
General Requirem ents
Cooling Cycle
. . . . . . . . . . . . . . . . . . . . . . . . 67
Oil and Refrigerant Pum p
M otor Cooling System
Tracer AdaptiView Display
RuptureGuard . . . . . . . . . . . . . . . . . . . . . . . . 71
EarthWise Purge
. . . . . . . . . . . . . . . . . . . . . . 71
6
. . . . . . . . . . . . . . . . . . . 51
. 52
. . . . . . . . . . . . . . . . 56
. . . . . . . . . 59
. . . . . . . . . . . . . 60
. . . . . . . . . . . . . . . . . . 61
. . . . . . . . . . . 65
. . . . . . . . . . 66
. . . . . . . . . . 66
. . . . . . . . . . . . 66
. . . . . . . . . . . . . . . . . . . . 67
. . . . . . . . . . . . . . . . 67
. . . . . . . . . . . . . . 68
. . . . . . . . . . . . . . . . 70
. . . . . . . . . . . . . 70
How a Purge System Works . . . . . . . . . . .71
Start-up and Shut-dow n
Chiller Sequence of Operation
Softw are Operation Overview Diagram . .75
Start-up Sequence of Operation-Wye-Delta
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Pow er Up Diagram . . . . . . . . . . . . . . . . . . .78
Ice M achine Control
Free Cooling Cycle
Hot Water Control
Control Panel Devices and Unit-M ounted De-
vices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Unit Control Panel . . . . . . . . . . . . . . . . . . .81
User-Defined Language Support . . . . . . .81
Unit Start-up and Shut-dow n Procedures
Daily Unit Start-up . . . . . . . . . . . . . . . . . . .82
Seasonal Unit Start-up . . . . . . . . . . . . . . .82
Daily Unit Shut-dow n . . . . . . . . . . . . . . . .82
EarthWise Purge Sequence of Operations
Purge Operating M odes . . . . . . . . . . . . . .83
Air Rem oval . . . . . . . . . . . . . . . . . . . . . . . .87
Pum p-out Operating Sequence . . . . . . . .87
Carbon Tank and Regeneration Subsystem
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Recom m ended M aintenance
Record Keeping Form s . . . . . . . . . . . . . . .91
Norm al Operation . . . . . . . . . . . . . . . . . . .92
Com pressor Oil Change
Leak Checking Based on Purge Pum p Out
Tim e
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
RuptureGuard M aintenance
EarthWise Purge M aintenance
Weekly M aintenance . . . . . . . . . . . . . . . . .94
Sem i-Annual M aintenance . . . . . . . . . . . .95
Annual M aintenance . . . . . . . . . . . . . . . . .95
Inspecting the M oisture Indicator . . . . . . .95
M aintaining the M oisture-Indicating Sight
Glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Rem oving Air After Servicing the Chiller .95
Recom m ended System M aintenance . . .96
. . . . . . . . . . . . . . . . . .75
. . . . . . . . . .75
. . . . . . . . . . . . . . . . . . .78
. . . . . . . . . . . . . . . . . . . . .80
. . . . . . . . . . . . . . . . . . . . .80
. . . . . . . . . . . . .91
. . . . . . . . . . . . . . . .93
. . . . . . . . . . . . .94
. . . . . . . . . .94
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