Table of Contents
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0307SCAOAMEN
Menen version
SCA
Gas-Fired, Balanced-Flue or Power-Vented Unit Heater
INSTRUCTION DOCUMENT
APPLIES FOR: Installation/Commissioning/Servicing
These appliances meet the following EC Directives
DIR CE 90/396/EEC:GAD
DIR CE 89/336/EEC: EMC
DIR 73/23/EEC: LVD
DIR 89/392/EEC: MD
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.
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, injury, or death. All work must be carried out by appropriately quali-
fied persons.
Subject to modifications
Ambi-Rad Limited, Fens Pool Avenue, Brierley Hill, West Midlands DY5 1QA (United Kingdom)
Tel : 01384 489700
fax : 01384 489707
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Summary of Contents for Ambirad SCA 45
- Page 1 0307SCAOAMEN Menen version Gas-Fired, Balanced-Flue or Power-Vented Unit Heater INSTRUCTION DOCUMENT APPLIES FOR: Installation/Commissioning/Servicing These appliances meet the following EC Directives DIR CE 90/396/EEC:GAD DIR CE 89/336/EEC: EMC DIR 73/23/EEC: LVD DIR 89/392/EEC: MD Please read this document carefully before commencing installation commissioning and/or servicing.
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Page 2: Table Of Contents
Table of Contents 11.0 GAS CONVERSION 1.0 INTRODUCTION Basic Information 12.0 USERS INSTRUCTIONS Warranty 13.0 HEALTH & SAFETY STATEMENT 2.0 TECHNICAL DATA Specifications Dimensions 3.0 GENERAL REQUIREMENTS HAZARD INTENSITY LEVELS Related Documents Heater Location 1.DANGER: Failure to comply will result in severe Combustion Air Inlet Pipe and Flue Pipe personal injury or death and/or property damage. -
Page 3: Warranty
Axial fan-type unit heater is connected to a duct system or containing any silicone, aluminum oxide, etc., that fitted with a non-AmbiRad authorized air distribution adheres to spark ignition flame sensing probes. device. 2.0 TECHNICAL DATA 2.1 Specifications... - Page 4 Table 2A: Injector size and burner pressure G20 natural gas - inlet pressure = 17.5 mbar for UK 20.0 mbar for IE Model Quantity Injector size Burner pressure (mbar) marking 1.85 9.00 1.85 8.90 1.85 9.00 2.20 7.70 2.20 9.20 2.20 7.00 2.20...
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Page 5: Dimensions
2.2 Dimensions – Figure 1A 0307SCA0AMEN 5/26... - Page 6 Figure 1B 0307SCA0AMEN 6/26...
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Page 7: General Requirements
Rear* an individual flue pipe and the combustion air inlet opening must be provided with a protection grill (ask your AmbiRad * Measure rear clearance from the back of the motor distributor for the appropriate protection grill (IP20) (1). Each... -
Page 8: Combustion Air Inlet Pipe And Flue Pipe
3.3.1 Flues for power vented installations 3.3.2 Combustion air inlet pipe & flue pipe for balanced (Type B appliances) flue installation (Type C appliances) Balanced flue air heaters are designed to be fitted with a If the air heater is to be installed as a type B appliance, air for combustion air inlet duct that obtains outdoor air and a flue combustion will be taken from within the space where the heater is installed. -
Page 9: Air Supply
WARNING: This model air heater is installed as a type B ®Protection grill (option) application and is designed to take air for combustion from SCA 45/60 : PN 08 17512 01 the space in which it is installed. Do not restrict the SCA 75→125 :... -
Page 10: Air Distribution System
AmbiRad Maximizors requirements and the appliance before commencing installation. may be fitted to ensure even heat distribution and minimize stratification. -
Page 11: Fitting The Combustion Air Inlet/Flue Pipe System
IMPORTANT: Figure 4 Suspend the heater from the threaded nut retainers. Do not suspend from the heater cabinet panels. Do not place or add additional weight to the suspended air heater. See hazard levels, page 2. The heater must be installed in a level plane to ensure proper operation. -
Page 12: Electrical Connections
¯ gas service tap °gas tube 5.0 AIR DISTRIBUTION AmbiRad SCA air heaters are fitted with adjustable horizontal 4.5 Electrical connections louvres over the range 10 - 55 degrees from the horizontal so as to be able to direct the airflow downwards. -
Page 13: Commissioning And Testing
6.0 COMMISSIONING & TESTING meter must be inspected, tested for soundness and purged in accordance with appropriate requirements by a qualified The commissioning and testing may only be carried out by person. appropriately qualified persons. This section should be read and fully understood before CAUTION: Never use a flame for checking gas soundness. -
Page 14: To Turn The Heater 'Off' For Long Periods
6.4.2 To turn the air heater "OFF" for short periods Figure 7a : SIT gasvalve Adjust the room thermostat to its lowest setting or 'OFF'. The fan will continue to run to cool the heater and then switch OFF automatically. 6.4.3 To turn the air heater "OFF"... -
Page 15: Handing Over
Table 10 Combustion air pressure control settings AmbiRad SCA air heaters will operate with a minimum of 6.9 Handing over maintenance. To ensure long life and satisfactory and safe... -
Page 16: Removal And Replacement Of Parts
Clean with a flue brush or a heavy wire to which wire wool has been attached. 8.0 Removal & replacement of parts SCA air heaters must only be fitted with AmbiRad authorized 3. Open the access door. replacement parts. These heaters must use certificated spare parts to comply with legislation. - Page 17 Figure 8 Removing the burner rack/manifold assembly (for Instructions for re-assembly: clarity, the heater cabinet & other parts are not illustrated) 1. Reverse the procedure for removal making sure that all parts are installed correctly. Check that all components are secure.
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Page 18: Main Burner Injectors
8.2 Burner injectors 8.4 Replacement of fan motor and/or fan blade 1. carry out steps 1 to 6 of section 8.1. Follow these instructions for the replacement of the 2. Unscrew the main burner injectors. fan guard, fan motor or fan blade/s. 3. -
Page 19: Limit Controls
If it is determined that the air differential pressure switch needs The gas control operating valve is the prime safety shut-off. replacing, use only AmbiRad authorized replacements that are All gas supply lines must be fee of dirt, scale, etc. before designed for the air heater being serviced. -
Page 20: Fault Finding
9.0 FAULT FINDING 9.1 Main fault finding chart - Lock-out indicator light is "OFF", but air heater will not operate WARNING: Fault finding may only be carried out by appropriately qualified persons Is the thermostat above room temperature and if used is the time clock"ON"... - Page 21 9.2 Ignition Controller Lockout indicator Light Repeatedly Comes "ON" WARNING: Fault finding may only be carried out by appropriately qualified persons Is polarity of mains correct? Correct polarity Does the inlet gas pressure agree with the correct the gas supply data badge pressure Wait 15"...
- Page 22 9.3 Limit Control Fault Finding Chart (limit control trips) WARNING: Fault finding may only be carried out by appropriately qualified persons Note : SCA 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.
- Page 23 9.4 Fan Fault Finding Chart WARNING: Fault finding may only be carried out by appropriately qualified persons Adjust thermostat temperature setting above ambient to energize the fan and the fan solenoid valve Place the Does the fan system in Is there 220-240V operate ? normal at terminals N &...
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Page 24: Parts List
<P setting out 130PA (PN 03 400US 051130 & 30 60607 130) 11.0 GAS CONVERSION 11.1 AmbiRad SCA air heaters are designed to operate on 11.4 Changes to carry out : natural, propane or butane gas and will be supplied for types 45/60/75/100/125/150 fitted for the gas type ordered. -
Page 25: Users Instructions
4. In the event of difficulties in resolving any of these matters, 1. Turn on the gas supply to the air heater. please do not hesitate to contact AmbiRad or their official 2. Switch on the electricity supply to the air heater. -
Page 26: Health & Safety Statement
Prolonged contact may 13.3 Declaration cause dermatitis. Avoid breathing vapour. Avoid eye AmbiRad products contain no asbestos; copper is contact. Do not ingest. not employed in gas carrying components; solder First Aid: Skin. Wash thoroughly with soap and which has a melting point below 450°C is not used;...
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