Reznor LCSA-3 Installation Commissioning Servicing & User Instructions

Reznor LCSA-3 Installation Commissioning Servicing & User Instructions

Gas-fired, balanced-flue or power-vented unit heater

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12-3, 20-3, 30-3, 35-3, 45-3, 60-3
75-3, 100-3, 120-3, 145-3
Gas-Fired, Balanced-Flue or Power-Vented Unit Heater
Improper installation, adjustment, alteration, service, or maintenance can cause property damage,
injury, or death. All work must be carried out by appropriately qualified persons.
The manufacturer does not take any responsibility in the event of non-observance of the
regulations concerning the connection of the apparatus causing a dangerous operation of the
apparatus, possibly resulting in damage to the apparatus and/or environment in which the unit is
installed.
Please read this document carefully before commencing installation commissioning and/or
servicing. Leave it with the user or attached to the appliance or gas service meter after installation.
Reznor U.K. limited – Park Farm Road – Folkestone – Kent (UK)
Tel : 01303-259141 - Fax : 01303-850002
LCSA-3, 1502
®
LCSA-3
Installation, Commissioning,
Servicing & User instructions
These appliances meet the following EC Directives
DIR 2009/142/EC:GAD
DIR 2004/108/EC: EMC
DIR 2006/95/EC: LVD
DIR 2006/42/EC MD
WARNING
1502LCSA-3GBEN
Subject to modifications
1/21

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  • Page 1 Please read this document carefully before commencing installation commissioning and/or servicing. Leave it with the user or attached to the appliance or gas service meter after installation. Reznor U.K. limited – Park Farm Road – Folkestone – Kent (UK) Tel : 01303-259141 - Fax : 01303-850002...
  • Page 2: Table Of Contents

    Main Burner Injectors responsible for their safety. Ignition System Children should be supervised to ensure that Operating Gas Valve they do not play with the appliance. Limit Controls Combustion Air Pressure Switch Combustion Air Fan LCSA-3, 1502 2/21...
  • Page 3: Introduction

    The installation is not in accordance with these instructions. c) Axial fan-type unit heater is connected to a duct system or fitted with a non-Reznor authorized air distribution device.
  • Page 4: Dimensions

    Suspension points (M10 female) LCSA 12-3 1/2"G 20-3 1/2"G 30-3 1/2"G 35-3 3/4"G 45-3 3/4"G 60-3 1298 3/4"G 75-3 1298 3/4"G 100-3 1298 1022 3/4"G 120-3 1750 1100 1057 1365 3/4"G 145-3 1750 1150 1100 1057 1365 3/4"G LCSA-3, 1502 4/21...
  • Page 5: General Requirements

    Where two or more air heaters are air inlet opening must be provided with a protection installed in the same room, a general scheme to grill (ask your Reznor distributor for the appropriate ensure continuous circulation...
  • Page 6 Air heaters if fitted with a power venter permitting either vertical horizontal combustion inlet/flue pipe system. heaters must installed with a concentric vertical or horizontal flue/combustion air inlet. The heaters are only approved when installed with appropriate approved concentric vent terminal. See table 6. LCSA-3, 1502 6/21...
  • Page 7: Air Supply

    It is important to ensure that there is an adequate fans e.g. Reznor Maximizors may be fitted to ensure air supply at all times for both combustion and even heat distribution and minimize stratification. Care heating requirements.
  • Page 8: Installation

    See typical installations in figure 5. Table 9 Air inlet socket size (dia mm) LCSA-3 20,30 35 -> 145 Socket Be sure that the threaded hanger rods are locked to the heater as illustrated. Recommended maximum hanger rod length is 1.8m. LCSA-3, 1502 8/21...
  • Page 9: Gas Connection

    Fix all electric cables and installer’s wiring to the control panel and ensure they do not touch the combustion collector box. Legend : 1 Gas tube inlet sealing ring 2 Inlet gas pipe 3 Union fitting 4 Gas service tap 5 Gas pipe LCSA-3, 1502 9/21...
  • Page 10: Air Distribution

    AIR DISTRIBUTION  Reznor LCSA-3 air heaters are fitted with adjustable DO NOT ADJUST THE LOUVRES BEYOND THEIR horizontal louvers over the range 0 - 45 degrees STOPS.
  • Page 11: Suspension And Support

    6.4 Lighting the air heater The soundness of the air heater pipe work has been checked prior to leaving the factory. However during LCSA-3 air heaters are all fitted with automatic spark installation, connections may have been loosened. ignition systems.
  • Page 12: Air Distribution System

    LCSA-3 air heaters are fitted with a pressure Advise the person who is resuming responsibility sensitive, combustion air safety control that monitors that for continued safe operation the air heater the combustion airflow.
  • Page 13: Servicing Instructions

    Remove any dust and grease deposits. LCSA-3 air heaters will operate with a minimum of The inner surfaces of the heat exchanger can be maintenance. To ensure long life and satisfactory...
  • Page 14: Removal And Replacement Of Parts

    Burner operating lamp H6 Reset switch S3 Spark igniter ER Control panel Gas valve V1 Fan motor M1 Venter motor M3 10 Fan control relay KFC 11 LC1 limit control 12 Flame sensor IS 13 Reset LC3 14 Fuse F3.1 LCSA-3, 1502 14/21...
  • Page 15: Main Burner Injectors

    (approx 25 mm). 8.6 Combustion air control/switch If it is determined that the air differential pressure switch needs replacing, use only Reznor authorized replacements that are designed for the air heater being serviced. These switches are calibrated to Fig.
  • Page 16: Fault Finding

    Is the pressure tubing connected & in sound condition? Check venter motor Is there continuity between 9 & 10 ? Is the wheel dirty Replace pressure switch Clean the venter wheel Check pressure switch Connect or replace tubing LCSA-3, 1502 16/21...
  • Page 17 & clean ceramic insulation Is there 220 to 240V between terminals check multi 13 & N functional gas valve Check electronic ignition control Check flame signal. Is it Place in normal greater than 1,0 micro operation Amps? LCSA-3, 1502 17/21...
  • Page 18 9.3 Limit Control Fault Finding Chart (limit control trips) Note LCSA-3 air heaters are equipped with 2 limits (a recycling limit and a manual reset limit). During normal operation, neither limit should trip even if the main electric supply is interrupted during operation. In the event of motor failure, the recycling limit will trip opening the gas valve.
  • Page 19: Parts List

    01 27014 ERP fan 120-3/145-3 01 27012 GAS CONVERSION 11.1 LCSA-3 air heaters are designed to 11.4 Changes to carry out: operate on natural, propane or butane Natural gas: use Honeywell VR4601AB gas and will be supplied fitted for the gas (PN 03 25136) - set pressure regulator as type ordered.
  • Page 20: Users Instructions

    1. Turn on the gas supply to the air heater. these matters, please do not hesitate to contact 2. Switch on the electricity supply to the air heater. Reznor or their official distributor. 3. Ensure time switch (if fitted) is set to an 'ON' cycle.
  • Page 21: Health & Safety Statement

    Plastic enclosure Aluminium enclosure Reznor products contain no asbestos; copper is not Material: Contained liquid electrolyte employed in gas carrying components; solder which Known hazards: Electric shock possible if charged. has a melting point below 450°C is not used; paints Precautions: Discharge to ground/earth.

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