McQuay SWT028C

44 pages

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

IM709 23

Typical Wiring Schematics

Figure 19. Power Schematic

Table of Contents

Default Chapter2
- Table of Contents2
Introduction3
- General Description3
- Inspection3
Installation4
- Handling4
- Vibration Isolators4
- Location/Service Access4
- Removal of Shipping Restraints and Construction Filter4
- Disassembly of Sections5
- Field Mounting of Sensors6
  - Units with Fan Section Shipped Separate (Code 21=*M)6
  - Units Ordered for Modular Construction (Code 32=1)6
Refrigerant Piping7
- Pressure Relief Valves7
Water Connections8
- General8
- Condenser Piping8
- Condensate Drain Connection10
Duct Connections11
- Supply Air11
- Return Air12
Physical Data13
Dimensional Data15
Unit Weights18
Field Wiring19
- General19
- Unit Disconnect19
- Return Air and Outside Air Sensor19
- Supply Power Wiring20
- Lug Sizes for Single Disconnect or Power Block20
Control Center21
Electrical Legend22
Typical Wiring Schematics23
- (4 Compressors /4, 5 or 6 Stage)29
Standard Controls30
- High Pressure Switches30
- Low Pressure Switches30
- Compressor Motor Protector30
- Proof of Airflow Switch30
- Frost Protection Switches30
- Clogged Filter Switch30
Unit Options31
- Duct High Limit31
- Phase Fail/Under Voltage Protection31
- Duct Static Pressure Sensor31
- Building Static Pressure Sensor31
- Building Pressurization Applications32
- Freezestat32
- Condenser Water Flow Switch32
- Water Side Economizer32
- Condenser Water, Head Pressure Control32
- Variable Inlet Vanes33
- Variable Frequency Drive33
- Disconnect Switch33
- Dual Power Supply33
- Electric Heat33
- Hot Water Control33
System Check, Test and Start34
- General34
- Pre Start-Up34
- Start-Up34
System Maintenance38
- Preventative Maintenance38
- Motor Bearings38
Replacement Parts39
Service and Warranty Procedure40
- In Warranty Return Material Procedure40
- Replacement Parts40
- Product Warranty40
System Check, Test and Start Form41

Related product manuals

Preview: McQuay SWT C Series

McQuay SWT C Series

Preview: McQuay SWP 018

Preview: McQuay SWP Series

McQuay SWP Series

Preview: McQuay SB250B

McQuay seasoncon ALP-067A

Preview: McQuay M5WMY10LR

McQuay M5WMY10LR