Name: Lennox G71MPP
Brand: Lennox
Rating: 5 (1 reviews)

Default Chapter1

1 I Unit Components16

Electronic Ignition17
Thermostat Selection Modes17
Two−Stage17
Variable Capacity17
Integrated Control Diagram18
Integrated Control Configuration Guide19
Blower off Delay Switch Settings20
Continuous Indoor Fan20
Heating Operation DIP Switch Settings20
Indoor Blower Operation DIP Switch Settings20
Blower Speed Adjustment21
Cooling Mode Blower Speed Ramping21
Ramping Options21
High Heat Blower Speeds22
Low Heat Blower Speeds22
Diagnostic LED23
Diagnostic Push Button23
Error Code Recall Mode/Field Test Mode23
On−Board Links23
Field Test Menu Options24
Idle Menu Options24
LED 7 Segment Status / Error Code25
Operating Sequence Table26
Blower Compartment28
- Blower Motor28
- Initial Power up28
- Internal Operation28
- Secondary Limit28
- Blower B3 Harness Connectors29
- Motor Start-Up29
- Power Choke29
Heating Components30
- Troubleshooting30
- Flame Sensor31
- Harmony III31
- Heating Components31
- Ignitor31
- Duralock Heat Exchanger32
- Flame Rollout Switches32
- Primary Limit Control32
- Backup Secondary Limit Control33
- Gas Valve33
- Variable Speed Combustion Air Inducer Pressure Switch33
- Measuring Pressure Differential34
- Vent Calibration34
- Dual Pressure Switch35
- Single Pressure Switch35
- Outdoor Termination Kits and Corresponding Equivalencies36
- Placement and Installation36
- Exhaust Pipe Offset37
- Maximum Vent Length37
- Vent Piping Guidelines37
- Joint Cementing Procedure38
- Maximum Vent Pipe Lengths38
- Minimum Vent Pipe Lengths38
- Exhaust Piping39
- Venting Practices39
- Intake Piping40
- Typical Exhaust Pipe Connections and Condesate Trap Installation40
- Typical Air Intake Pipe Connections41
- Vent Termination Clearances (USA and Canada)42
- Details of Intake and Exhaust Piping Terminations43
- Exhaust Pipe Termination Size Reduction43
- Direct Vent Concentric Rooftop Termination44
- Direct Vent Concentric Wall Termination44
- Direct Vent Wall Ring Termination44
- Direct Vent Wall Termination Kit44
- Condensate Piping45
- Condensate Trap Locations45
- Direct Vent Application Using Existing Chimney45
- Direct Vent Termination Diagram45
- Condensate Assembly46

2 II Installation47

3 Start up47

4 Heating System Service Checks48

5 Typical Operating Characteristics51

To Measure Temperature Rise51

6 Maintenance52

7 Wiring and Sequence of Operation54

Brand	Lennox
Model	G71MPP
Category	Furnace
Language	English

Lennox G71MPP Unit Information

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