Trane CCAF - Page 24

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24 CGWF-SVX01A-EN

Installation Mechanical

Figure 7 CGWF 20, 25, 30 Ton Unit Dimensions, Recommended Clearances, Mounting Locations,

Electrical, Water Connection Size and Locations

Main Page

Table of Contents3
General Information7
Literature Change History7
Unit Identification7
Nameplates7
Unit Nameplates7
Compressor Nameplate7
Evaporator Nameplate7
Condenser Nameplate8
Unit Inspection8
Inspection Checklist8
Loose Parts Inventory8
Unit Description8
Unit Model Number8
Installation Overview12
Installation Mechanical17
Unit Storage17
Location Requirement17
Noise Consideration17
Foundation17
Ventilation17
Drainage17
Rigging17
Lifting Procedure for 20-50 Ton CGWF 20-60 and Ton CCAF Units18
Lifting Procedure for 60 Ton Units20
Alternate Moving Methods21
Access Restrictions21
Recommended Clearances22
Unit Isolation22
Direct Mounting22
Neoprene Isolator Mounting22
Neoprene Isolator Data22
Unit Leveling23
Unit Piping29
General Water Piping Recommendations29
Water System29
Water Flow Rates29
Pressure Drop Measurement29
Evaporator Water Piping32
Evaporator Water Connections32
Evaporator Piping Components32
Flow Sensing Devices32
Evaporator Drain33
Condenser Water Piping33
Condenser Water Connections33
Condenser Piping Components33
Condenser Drains34
Water Regulating Valve35
Water Pressure Relief Valves37
Low Temperature Operation37
Pressure Relief Valve Venting38
Refrigerant Piping (CCAF Only)40
Liquid Line Components and Connections40
Liquid Line Sizing40
Discharge (Hot Gas) Lines40
Leak Test42
System Evacuation42
Refrigerant Charging42
Installation Electrical43
General Recommendations43
Power Supply Wiring43
Unit Power Supply43
Equipment Grounds43
Terminal Lugs, Circuit Breakers and Non-Fused Disconnect Switches43
Scroll Compressor Electrical Phasing47
Correcting Improper Electrical Phase Sequence47
Unit Voltage48
Voltage Imbalance48
Control Power Supply48
Modules Connections for Interconnecting Wiring48
Chilled Water Flow Switch49
Chilled Water Pump Control49
Condenser Water Loss of Flow Protection49
Condenser Water Pump Starter49
Programmable Relays49
External Auto/Stop50
Compressor Inhibit/ High Ambient Operation50
Condenser Water Temperature Sensor Connections50
Chilled Water Rest50
External Chilled Water Setpoint Option51
Ice Machine Control Option51
Communications Interface Options51
Optional Tracer Communications Interface51
Lontalk Communications Interface for Chillers (LCI-C) Option52
CCAF - Fan Control54
Outdoor Air Temperature Control54
Operating System55
Controls Interface57
CH530 Communications Overview57
Dynaview57
Techview57
Dynaview Interface58
Key Functions58
Radio Buttons58
Spin Value Buttons58
Action Buttons59
File Folder Tabs59
Display Screens59
Basic Screen Format59
Keypad/Display Lockout Feature60
Main Screens61
Reports Screen65
Settings Screen67
Diagnostics Screen69
Techview Interface69
Software Download70
Instructions for First Time Techview Users70
Diagnostics73
Unit Start-Up77
Pre-Start Checklist77
Unit Power up79
Checking Operating Conditions79
System Superheat80
System Subcooling80
Unit Shutdown81
Normal Unit Shutdown81
Extended Shutdown Procedure81
System Restart after Extended Shutdown82
Unit Maintenance83
Periodic Maintenance83
Weekly Maintenance83
Monthly Maintenance83
Annual Maintenance83
Maintenance Procedures84
Mechanical Cleaning84
Chemical Cleaning84
Cleaning the Evaporator (Chiller)84
Water Treatment85
Wiring Schematics89
Schematics90
Component Location94
Field Wiring Diagram95
Field Layout Diagram96

Trane CCAF - Page 24

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