Installation, Operation and Maintenance Manual
VariCool EZ-Fit
3
Subject to change without notice.
Contents
Contents � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Wiring Diagram � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
Safety Introduction and Labeling Guide � � � � � � � � � � � � 5
General Information � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Inspection of Equipment
6
Handling
6
Location
6
Application Data
6
Service Clearances� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
Single Modules
7
Dual Modules
7
Condensate Drain� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Physical Data � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Dimensions & Weight� � � � � � � � � � � � � � � � � � � � � � � � � � � 10
Mounting and Placement� � � � � � � � � � � � � � � � � � � � � � � � 11
Mounting Options 12
Cabinet Vibration Isolation Method Options 12
Suggested Assembly Sequence
14
Evaporator Section
14
Gasket Material
14
Compressor / Condensing Section
14
Resealable Refrigerant Fittings
15
3D-Intelliclamps
16
Blower Section
19
Duct Connections
19
Water Requirements
19
Water Piping 20
Electrical and Controls 21
Power Wiring 21
Transformer 22
Voltage Unbalance 22
High Duct Static Pressure Switch 22
Low Voltage Control Devices 22
Wall Display 22
BMS Applications 23
Static Pressure Transducer 23
Supply Air Temperature Sensor 23
Return Air Temperature Sensor 23
Sequence of Operation Manuals 23
Single-Zone Variable Air Volume 23
Multi-Zone Variable Air Volume 23
Constant Air Volume 23
Water Flow Switch Installation 24
Maintenance Procedures� � � � � � � � � � � � � � � � � � � � � � � � 25
Filters 25
DWDI Blowers 25
Lubrication 25
Belt Driven (DWDI) 25
Belt Tensioning 26
Direct Drive Blowers 26
Drain Pan 24
Evaporator Coil 27
Condenser 27
Water Side Economizer Coil 28
Water Valves 28
Refrigerant Systems 28
Operations Verification Check List
� � � � � � � � � � � � � � � � 29
Troubleshooting Guide � � � � � � � � � � � � � � � � � � � � � � � � � 30
Limited Warranty � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 33
Water-Cooled Unit � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 34
Start-Up Procedures � � � � � � � � � � � � � � � � � � � � � � � � � � � 36
Product Nomenclature� � � � � � � � � � � � � � � � � � � � � � � � � � 40
Maintenance Log � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 41
Summary of Contents for VariCool EZ-Fit Series
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