Lennox LGH300S Packaged Rooftop Unit Manuals

Manuals and User Guides for Lennox LGH300S Packaged Rooftop Unit. We have 3 Lennox LGH300S Packaged Rooftop Unit manuals available for free PDF download: Unit Information, Installation Instructions Manual

Lennox LGH300S 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 MB

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

Lennox LGH300S Unit Information (120 pages)

Brand: Lennox | Category: Air Conditioner | Size: 14 MB

Lennox LGH300S Installation Instructions Manual (79 pages)

13/15/17.5/20/25 Ton

Brand: Lennox | Category: Air Conditioner | Size: 2 MB

Table of Contents
1
Top View
2
End View
2
Side View
2
Dimensions
2
Parts Arrangements
5
Shipping and Packing List
6
General
6
Unit Support
7
Duct Connection
8
Rigging Unit for Lifting
8
Condensate Drains
8
Condensate Drain Connection
9
Gas Piping
9
Bottom Entry Gas Piping
9
Pressure Test Gas Piping
10
High Altitude Derate
10
Electrical Connections
10
Power Supply
10
Field Wire Routing
11
Control Wiring
11
Blower Operation and Adjustments
13
Blower Data
18
Cooling Start-Up
20
Condenser Fans
55
Gas Heat Start-Up
57
For Your Safety Read before Lighting
57
Heating Operation and Adjustments
59
Electric Heat Start-Up
59
Variable Air Volume Start-Up
60
Multi-Staged Air Volume Start-Up
62
Multi-Staged Air Volume Operation
65
Hot Gas Reheat Operation and Start-Up
67
Service
71
Vent Connector
73
Unit Controller Parameter Settings
73
Start-Up Report
79

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