Name: Lennox Fhm 170
Brand: Lennox
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ENERGY RECOVERY INSTALLATION

FLEXYII_WSHP-IOM-0909-E Page 38

STEP 5 : Fixing

And fix the top of the module to the rooftop by using self-driling screws 19mm

Self-drilling screws 19mm D6.3

When the module is well fitted, fix the corner structures to the rooftop by using self-

drilling screws 32mm

Self-drilling screws 32mm D4.8

Table of Contents4
FLEXYII_WSHP-IOM-0909-E Page4
FLEXYII_WSHP-IOM-0909-E Page5
Transport - Handling12
Dimensions and Weights14
Lifting the Units16
Preliminary Checks17
Minimum Clearance Around the Unit18
Duct Connections19
Water Connection (Water Source Heat Pump)20
Minimum Water Content21
Water Loop Configuration (Water Source Heat Pump)22
Installation on Roof Mounting Frame24
Curbing and Flashing25
Non-Adjustable Non-Assembled Roof Curb Installation26
NON ADJUSTABLE ROOFCURB - Installation Instructions27
Adjustable Roofcurb28
Non Adjustable Non Assembled Roofcurb29
Multidirectional Roofcurb30
Return Roofcurb31
Return Horizontal Roofcurb32
Transition Roof Curb33
Energy Recovery34
Economiser and Extraction46
Commissioning47
- Before Connecting the Power47
- Climatic48
- Powering the Unit48
- Run Test49
VENTILATION Belt Tension50
- Mounting and Adjusting Pulleys51
- Airflow Balancing52
- Filters60
- Air Sock Control61
- UV Light62
- Hot Water Coils63
- Electric Heater65
- Gas Burners66
- Modulating Gas Burners77
Electrical Data: Wiring Diagrams86
- Diagram Reference Legend86
- Main Current Diagram Tri/400V/50Hz + T87
- CLIMATIC 50 Controller89
- CLIMATIC 50 Input90
- CLIMATIC 50 Output91
- DAD Smoke Detector92
- General Customer Connection Tcb93
- General Customer Connection with Advanced Control Pack (ADC)94
- Gas Burner 60 Kw and Hot Water Coil95
- Gas Burner 120 Kw96
- Gas Burner 180/240 Kw97
- Electric Heater98
- General Customer Connection Diagram99
- Electrical Data Control Variables100
- R410A101
- Advanced Scroll Temperature Protection (ASTP)102
- Principle Sketches103
Hot Water Coil Diagram109
Maintenance Diagnostic110
Maintenance Plan114
Commissioning Sheet115
Warranty117
Certificates118

Lennox Fhm 170 User Manual

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Brand	Lennox
Model	Fhm 170
Category	Heat Pump
Language	English