Summary of Contents for Powermatic GFAC Series
- Page 1 Doc Ref: M508 Issue 1.2 Jan 2021 ® GFAC series User, Installation & Servicing Manual Issue 1.2 Jan 2021 w w w . p o w r m a t i c . c o . u k...
- Page 2 Certificate Of Guarantee ® Certificate of Guarantee This is to certify that this Gas Fired Air Curtain is guaranteed for two years parts and one year labour from the date of original commissioning. The Air Curtain must be commissioned within 4 weeks of installation.
- Page 3 Contents Users, Installation and Servicing Instructions CONTENTS Title Section Contents Page User Instructions Pre Installation Introduction Technical Specifications Dimensions Technical data General Requirements Installation Fitting the Unit Fitting the Flue General Identification of Electrical Items Electrical Cable Installation Wiring Diagrams Commissioning and Testing Servicing Additional Documents...
- Page 4 User Instructions D) Description of Operation If the air curtain has not been left operational proceed as follows. Important: The Gas Fired Air Curtain must NOT be controlled by switching ON and OFF A) Checks before operating the unit the main electrical supply to it. 1) Standard Units The following preliminary checks should be made before The ignition sequence commences each time the external...
- Page 5 User Instructions E) Maintenance If you have any safety questions reference the servicing and installation of any of our appliances please do not To maintain efficient, reliable and safe operation of the hesitate to contact our head office for expert advice. Your unit, it is recommended that it is serviced annually by safety is paramount to us.
- Page 6 Technical Specification Gas Fired Model GFAC1750 GFAC2250 High Fire (max) 36.4 54.0 Output (nominal) Low Fire (min) 24.2 40.4 High Fire (max) 40.0 58.9 Input (nett CV) Low Fire (min) 27.2 44.0 High Speed 8100 10800 Airflow Volume Med Speed 4500 6000 Low Speed...
- Page 7 Dimensions 1750 2250 Model 1750 2250 1150 1150 Plan View 228.5 228.5 1007.4 1507.5 300.5 Front View (Air inlet) End View 1.2 Technical Data Injector Sizes & Burner Pressures - Natural Gas - Group H - G20 Net CV (Hi = 34.02MJ/m³) Minimum Inlet (All variants) High Fire...
- Page 8 1.3 General Requirements 1.3.1. Related Documents 1.3.3 Electrical Supply All Gas Fired Air Curtains comply with the following Wiring external to the Air Curtain must be installed in European Directives: accordance with the I.E.E. Regulations for Electrical Installations and any local regulations which apply. Gas Appliance Regulation: 2016/426EC Electromagnetic Compatibility Directive: 2014/30/EU...
- Page 9 1.3 General Requirements 1.3.4.3. Installation Pipes Only flue systems supplied through Powrmatic Ltd may be used with these units and must be installed to current Installation pipes should be fitted in accordance with IGE/ standards and rules in force. UP/2. Pipe work from the meter to the Air curtain must be of adequate size.
- Page 10 2.1 Fitting the Unit 2.1.1 Fitting space requirement Front View (air inlet) End View Distance from outside of Air Curtain to closest obstacle Distance R/H Side L/H Side Above Rear Front (air inlet) 1000 Minimum mounting height, floor level to underside 2000 2.1.2 Suspending the Air Curtain Note: All models must not be installed at a...
- Page 11 2.1 Fitting the Unit Suspension Suspension Supports supports All thread rod Locknuts Suspension point Suspension Suspension supports Supports Suspension Suspension supports Supports min. 25mm Multiple air curtains should be spaced at a minimum of 25mm between each unit When installing multiple units, ensure the air curtains are level and in the same plane.
- Page 12 2.2 Fitting the Flue 2.2.1 General brackets, or equivalent, must be used to provide lateral stability and should be used at centres not exceeding 2.5 Only flue systems supplied through Powrmatic Ltd may metres. be used with this appliance. Twin Wall Flue can also be used.
- Page 13 2.2 Fitting the Flue Cross sectional area detailing sealing arrangement. Cross sectional area detailing sealing arrangement. Locking Locking Adjustable Band Band Locking Seal Band Male end Slip Section Inner Tube Seal Ring Seal Female socket Ring Outer Tube Male end Inner Slip CORRECT METHOD Female end...
- Page 14 2.2 Fitting the Flue 2.2.4.1 Vertical Balanced Flue Assembly IMPORTANT: The maximum length for a is 6 metres. balanced flue system The maximum length of flue is subsequently shortened if bends are added to the planned flue run. 90° bends are equivalent to a 1m length and 45°...
- Page 15 2.2 Fitting the Flue Typical Vertical Balanced Flue 2.2.4.3 Vertical Single Flue Assembly exploded view type B22 IMPORTANT: The maximum length for a is 12 metres. balanced flue system The maximum length of flue is subsequently shortened if bends are added to the planned Vertical Roof Terminal flue run.
- Page 16 Typical Vertical Balanced Flue Place a vertical terminal into the open end and clamp into place using a locking band. (This locking band may be very type B22 - exploded view tight!, see section 2.2.3.1 for correct installation). Check that the exhaust air spigot on the heater contains a seal.
- Page 17 2.2.4.4 Horizontal Single Flue Clamp the flue locking bands. (These locking bands may be very tight!, see section 2.2.3.1 for correct installation). Assembly type B22 Place an adjustable length locking band onto each end of IMPORTANT: The maximum length for a the condense and 250mm standard length ensuring is 12 metres.
- Page 18 2.2 Fitting the Flue 2.2.5. Condense Drain the water seal must be at least 75mm, to prevent foul smells entering the building. We recommend installing a Powrmatic inline condense flue drain when flued vertically, due to the lower flue gas temperatures experienced when the Air Curtain is operating at low firing rates.
- Page 19 2.3 General Identification of Electrical Items * photo shown includes option MC300 slave unit. ENGINEERS SWITCH ** Contractors terminals for standard Hi/Low external controls. CONTRACTORS TERMINALS** MAINS INPUT COMMAND TERMINALS MODULE FAN OUTPUT TERMINALS *option PACTROL MC300 SEQUENCE CONTROLLER PRESSURE SWITCH EXHAUST VALVE...
- Page 20 2.4 Electrical Cable Installation 2.4.1. Electrical Connections All external controls must be of an approved type. Simple room thermostat and thermostat/time clock control systems will not provide optimum system efficiency and fuel savings. Wiring drawings and instructions are Warning: THIS APPLIANCE MUST BE supplied with the respective controller.
- Page 21 2.4 Electrical Cable Installation 2.4.3 Wiring Connections The wiring terminals are located on the electrical panel behind the side door of the Air Curtain which firstly has to be opened. Mains input 230V 50Hz 1Ph supply connections are via a separate LNE terminal block.
- Page 22 2.5 Wiring Diagrams HIGH LO-FIRE HI-FIRE STAT STAT Engineer's Switch Blk 0.5 GV PACTROL Blu 1.0 CON 4 CON 1 CON 5 Or 1.0 PACTROL Br 1.0 MicroGas P25 CON 3 JT 1 JT 2 CON 6 CON 7 G/Y 0.5 page no.
- Page 23 2.5 Wiring Diagrams 2.5.1. Internal Wiring Dwg. A01GBE0349 Modify standard loom: Modify standard loom: 3-Way brown Hylec terminal 3-Way brown Hylec terminal moved to new position. moved to new position. Fused terminal block in its place Fused terminal block in its place MAINS SUPPLY MAINS SUPPLY 230V AC...
- Page 24 2.5 Wiring Diagrams 2.5.2. Baratherm Control Panel Dwg. A01GBE0348 page no. 24 of 36 Gas Fired Air Curtain Doc Ref M508 issue 1.2 Jan 2021.
- Page 25 2.6 Commissioning and Testing Controls Methodology Dwg. A01GBE0360 230V APPLIED AIR CURTAIN & BURNER DISABLED - Door closed DOOR SWITCH ACTIVATED? - Door open AIR CURTAIN ENABLED AT SELECTED SPEED RETURN AIR BURNER BELOW DISABLED LO-FIRE STAT SETPOINT? RETURN AIR BELOW HI-FIRE STAT SETPOINT?
- Page 26 2.6 Commissioning and Testing Gas Safety (Installation & Use) (Amendment) To set the required fan speed, remove the lid of the fan Regulations terminal box. The three pairs of terminals are shown below. It is law that all gas appliances are installed, adjusted and, if necessary, converted by Place yellow jumper between desired fan speed terminals.
- Page 27 2.6 Commissioning and Testing 2.6.5. Checks before Operating the Air 5. SHUT OFF Set the external controls to OFF or MIN. Curtain 2.6.7. Burner Gas Pressures The following preliminary checks should be made before lighting the air curtain This is set for the required heat input before despatch. High and low pressures should be checked in the following a) Ensure that the ELECTRICAL supply to the air curtain is manner:.
- Page 28 2.6 Commissioning and Testing 2.6.9. Limit Thermostat is obtained. Turn the burner On and OFF several times to check the Limit Thermostat settings:- 90°C. pressure setting and then turn off. Minimum Setting. Disconnect electrical connection to the regulator and turn 2.6.10.
- Page 29 2.7 Servicing 2.7.2. Main Burner Assembly Removal Gas Safety (Installation & Use) (Amendment) Regulations 1. Ensure that the gas service valve is turned OFF It is law that all gas appliances are installed, and then unscrew the union nut situated immediately adjusted and, if necessary, converted by downstream of it.
- Page 30 2.7 Servicing 2.7.4. Exhaust Fan 4. Withdraw cable through entry grommet. 1. Remove the four screws securing the flue outlet socket. 5. Remove the fan and motor assembly complete by removing the hexagon headed screws that secure the fan 2. Disconnect the fan electrical connections from the main to the rear panel.
- Page 31 2.7 Servicing 2.7.6.3. Electrode Assemblies Model Setting (Pa) 1. Disconnect the electrode leads from the control box as appropriate. GFAC1750 GFAC2250 2. Remove the screw securing the electrode assembly to the burner assembly side plate and withdraw the assembly. 2.7.7.6. Exhaust Fan 3.
- Page 32 3.1 Fault Finding START Is there 230V between TURN ON MAINS Pactrol controller terminals ISOLATOR! CON5 - pin 1 and pin 2? Is there now 230V between Check for break Pactrol controller terminals in BROWN cable. CON5 - pin 1 and pin 2? there Is there...
- Page 33 3.1 Fault Finding Continued from previous page Is there there Check for break in 230V between NOW 230V Replace contractors terminals 14 and VIOLET & WHITE between contractors Pactrol! terminals 14 15? Green lamp will be cables. and 15? indicating? Replace Has the Gas Solenoid Gas Valve and...
- Page 34 3.1 Fault Finding Continued from previous page Burner Fired! Is there • Check for 230V on terminals L & N Has the main fan 230V at terminal on Fan Command Module. started after the 30 second 'SW' on the Fan Command •...
- Page 35 3.2 List of Parts Item Description Usage Part No. Gas Valve SIGMA 843 145035208HL-SIT/KIT/SP Ignition Electrode 142423010 Rectification (Flame Sensor) Probe 142423003 Burner 142400240 Limit Stats 142403609 Control Box (Sequence Controller) 145030846 Fan Command Module MkIII 142403603 Lockout Reset Switch 143070276 Pressure Switch HUBA 604 146522177...
- Page 36 Getting In Touch Powrmatic Ireland Powrmatic Limited 45 Broomhill Close Hort Bridge, Ilminster Tallaght Somerset Stamm International HQ Dublin 24 TA19 9PS tel: +353 (0) 1452 1533 tel: +44 (0) 1460 53535 Stamm International Corporation fax: +353 (0) 1452 1764 fax: +44 (0) 1460 52341 PO Box 1929 e-mail: info@powrmatic.ie...
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