Lennox LGH180U Manuals

Manuals and User Guides for Lennox LGH180U. We have 1 Lennox LGH180U manual available for free PDF download: Installation Instructions Manual

Lennox LGH180U Installation Instructions Manual

Lennox LGH180U Installation Instructions Manual (60 pages)

13 Ton, 15 Ton, 17.5 Ton, 20 Ton, 25 Ton ROOFTOP PACKAGED UNITS

Brand: Lennox | Category: Air Conditioner | Size: 1.9 MB

Table of Contents

Table of Contents
1
Unit Dimensions
2
Parts Arrangement Diagram
5
Requirements
6
Shipping and Packing List
6
General
6
Downflow Discharge Application
7
Unit Support
7
Horizontal Discharge Applications
8
Duct Connection
8
Rigging Unit for Lifting
8
Condensate Drains
8
Connect Gas Piping
9
Pressure Test Gas Piping
10
High Altitude Derate
10
Electrical Connections
10
- Wire Routing
  11
- Zone Sensor Mode
  11
- Thermostat Location
  11
- Control Wiring
  11
- Hot Gas Reheat Units Only
  12
- Humidity Sensor Cable Applications
  12
- Minimum and Maximum Pulley Adjustment
  13
- Blower Access
  13
Blower Operation and Adjustments
13
- Blower Belt Adjustment
  14
- Blower Assembly - no Tensioner
  14
- Location of Static Pressure Readings
  14
- Pulley Alignment - no Tensioner
  15
- Pulley Alignment - with Tensioner
  15
- Check Belt Tension
  16
- Field-Furnished Blower Drives
  16
- Blower Data
  17
- Blower Data
  18
- Preliminary Checks
  20
Cooling Start-Up
20
Heating Operation and Adjustments
42
Supply Air Inverter Start-Up
42
- Set Blower Speeds
  43
- Set Damper Minimum Position
  43
- Blower CFM Design Specifications
  43
- Inverter Bypass Option
  44
- Minimum and Maximum CFM
  44
Supply Air Inverter Operation
46
- Hot Gas Reheat Start-Up and Operation
  48
- Humidity Sensor
  48
- Default Reheat Operation
  48
- Reheat Setpoint
  48
- Refrigerant Routing Diagrams
  49
- Reheat Operation
  51
- Lubrication
  52
- Burners (Gas Units) Maintenance
  52
- Filters
  52
Service
52
Unit Controller Parameter Settings
54
- Configuration ID 1
  58
- Configuration ID 2
  59

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