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Lennox Fhm 170

Lennox Fhm 170
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Providing indoor climate comfort
FLEXY & FLEXY WSHP
Installation, operating
and maintenance
FLEXYII-WSHP-IOM-0909-E

Table of Contents

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Lennox Fhm 170 Specifications

General IconGeneral
BrandLennox
ModelFhm 170
CategoryHeat Pump
LanguageEnglish

Summary

Installation

Transport - Handling

Procedures for safe delivery and movement of the unit.

Dimensions and Weights

Technical specifications for unit size and weight.

Lifting the Units

Methods and precautions for lifting the equipment.

Preliminary Checks

Essential checks before unit installation.

Minimum Clearance Around the Unit

Required space for service and airflow.

Duct Connections

Guidelines for connecting air ducts to the unit.

Water Connection (Water Source Heat Pump)

Instructions for connecting water supply and return lines.

Water Loop Configuration (Water Source Heat Pump)

Diagrams and details of water loop setups.

Installation on Roof Mounting Frame

Steps for mounting the unit on a roof frame.

Curbing and Flashing

Details on installing roof curbs and flashing.

Non-Adjustable Non-Assembled Roof Curb Installation

Installation guide for a specific roof curb type.

Non-Adjustable Roof Curb - Installation Instructions

Step-by-step instructions for non-adjustable roof curb.

Adjustable Roof Curb

Specifications and diagrams for adjustable roof curbs.

Multidirectional Roof Curb

Details for multidirectional roof curb installation.

Return Roof Curb

Installation guide for return roof curbs.

Return Horizontal Roof Curb

Installation of horizontal return roof curbs.

Transition Roof Curb

Information on transition roof curb types.

Energy Recovery

Details on the energy recovery system.

Economiser and Extraction

Operation of economizer and extraction systems.

Commissioning

Before Connecting the Power

Preparatory steps before powering the unit.

CLIMATIC

Procedures related to the CLIMATIC controller.

Powering the Unit

Steps for safely powering up the unit.

Run Test

Procedures for performing operational run tests.

Ventilation

Belt Tension

Instructions for checking and adjusting belt tension.

Mounting and Adjusting Pulleys

Procedures for mounting and adjusting fan pulleys.

Airflow Balancing

Methods for balancing airflow and system performance.

Filters

Information on filter replacement and maintenance.

Air Sock Control

Explanation of the air sock control system.

UV Light

Details on the UV light option for air purification.

Heating Options

Hot Water Coils

Information on hot water coil installation and operation.

Electric Heater

Details regarding electric heater specifications and installation.

Gas Burners

Preliminary checks and starting procedures for gas burners.

Modulating Gas Burners

Information on modulating gas burner operation and adjustment.

Electrical Data: Wiring Diagrams

Diagram Reference Legend

Key to symbols and references in wiring diagrams.

Main Current Diagram TRI400 V50 Hz + T

Electrical diagram for main power supply.

CLIMATIC 50 Controller

Diagram for the Climatic 50 control unit.

CLIMATIC 50 Input

Input wiring for the Climatic 50 controller.

CLIMATIC 50 Output

Output wiring for the Climatic 50 controller.

DAD Smoke Detector

Wiring diagram for the DAD smoke detector.

General Customer Connection (TCB)

Wiring for standard customer connections.

Gas Burner 60 kW and Hot Water Coil

Wiring diagram for gas burner and hot water coil.

Gas Burner 120 kW

Wiring diagram for 120kW gas burner.

Gas Burner 180240 kW

Wiring diagram for 180/240kW gas burner.

Electric Heater

Wiring diagram for the electric heater.

General Customer Connection Diagram

General diagram for customer connections.

Electrical Data Control Variables

List of control variables and their functions.

Refrigeration Circuit

R410 A

Information about R410A refrigerant.

Advanced Scroll Temperature Protection (ASTP)

Explanation of compressor protection system.

Principle Sketches

Diagrams illustrating refrigeration circuit principles.

Hot Water Coil Diagram

Maintenance Diagnostic

Refrigeration

Troubleshooting for refrigeration system faults.

LP Problems and LP Cut Outs

Troubleshooting for low-pressure issues.

HP Problems and HP Cut Outs

Troubleshooting for high-pressure issues.

Indoor Fan Blower

Troubleshooting for indoor fan blower issues.

Outdoor Axial Fan

Troubleshooting for outdoor fan issues.

Electric Heater

Troubleshooting for electric heater issues.

Water Leaks

Troubleshooting for water leaks in various sections.

DC 50 & DS 50

Troubleshooting for control display issues.

Maintenance Plan

Warranty

Certificates

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