Mestek M) G 025 Installation And Operation Instructions Manual Download Page 4

Form 43471040 
Oct 2013 

-3-                 

      

 

INSTALLATION RE

INSTALLATION RE

INSTALLATION RE

INSTALLATION REQUIREMENTS

QUIREMENTS

QUIREMENTS

QUIREMENTS    

The installation must conform to local building codes or in the absence of local codes, with the National Fuel Gas 
Code  ANSI  Z223.1/NFPA54  or  the  Natural  Gas  and  Propane  Installation  Code  CSA  B149.1.  Heaters  shall  be 
installed  by  a  licensed  contractor  or  licensed  installer.  Clearances  to  combustibles  as  outlined  in  this  manual 
should  always  be  observed.  In  areas  used  for  storage  of  combustible  materials  where  they  may  be  stacked 
below the heater, NFPA54 requires that the installer must post signs that will “specify the maximum permissible 
stacking height to maintain the required clearances from the heater to combustibles.” 

Every heater shall be located with respect to building construction and other equipment so as to permit access 
to  the  heater.  Each  installer  shall  use  quality  installation  practices  when  locating  the  heater  and  must  give 
consideration  to  clearances  to  combustible  materials,  vehicles  parked  below,  lights,  overhead  doors,  storage 
areas  with  stacked  materials,  sprinkler  heads,  gas  and  electrical  lines  and  any  other  possible  obstructions  or 
hazards. Consideration also must be given to service accessibility. 

The  heater,  when  installed  in  aircraft  hangars  and  public  garages,  must  be  installed  in  accordance  with 
ANSI/NFPA  409-latest  edition  (Standard  for  Aircraft  Hangars),  ANSI/NFPA  88a-latest  edition  (Standard  for 
Parking  Structures),  and  ANSI/NFPA  88b-latest  edition  (Standard  for  Repair  Garages)  with  the  following 
clearances: 

a.

 

At least 10 feet above the upper surfaces of wings or engine enclosures of the highest aircraft that may be 
housed  in  the  hangar  and  at  least  8  feet  above  the  floor  in  shops,  offices,  and  other  sections  of  hangars 
communicating with aircraft storage or service areas. 

b.

 

At least 8 feet above the floor in public garages. ▲

▲WARNING:

WARNING:

WARNING:

WARNING: Minimum clearances marked on the heater 

must be maintained from vehicles parked below the heater. 

(FOR CANADA ONLY) 

a.

 

Installation  of  this  appliance  is  to  be  in  accordance  with  latest  edition  of  CSA  B149.1  (Natural  Gas  and 
Propane Installation Code). 

b.

 

For  installation  in  public  garages  or  aircraft  hangars,  the  minimum  clearances  from  the  bottom  of  the 
infrared heater to the upper surface of the highest aircraft or vehicle shall be 50 percent greater than the 
certified minimum clearance, but the clearance shall not be less than 8 feet. 

 

Although  these  heaters  may  be  used  in  many  applications  other  than  space  heating  (e.g.,  process  heating), 
Mestek will not recognize the warranty for any use other than space heating. 

For indoor installation only. No

For indoor installation only. No

For indoor installation only. No

For indoor installation only. Not for use in residential dwellings.

t for use in residential dwellings.

t for use in residential dwellings.

t for use in residential dwellings.    

This  heater  is  for  Indoor  Installation  and  Covered  Patio  Installation  only  and  can  be  used  in  either  Vented  or 
Unvented  mode.  The  term  Unvented  actually  means  Indirect  Vented.  While  the  products  of  combustion  are 
expelled  into  the  building,  national  codes  require  ventilation  in  the  building  to  dilute  these  products  of 
combustion. This ventilation may be provided by gravity or mechanical means. 

This  heater  is  not  an  explosion  proof  heater.

This  heater  is  not  an  explosion  proof  heater.

This  heater  is  not  an  explosion  proof  heater.

This  heater  is  not  an  explosion  proof  heater.  Where  the  possibility  of  exposure  to  volatile  and  low  flash  point 
materials exists, it could result in property damage or death. This heater must not be installed in a spray booth 
where the heater can operate during the spraying process. Consult your local fire marshal or insurance company. 

High Altitude:

High Altitude:

High Altitude:

High Altitude:    
Appliances are supplied as standard for altitudes of O to 2,000 feet (0-610 m). High-altitude ratings are obtained 
by a change in the orifice size. When ordered for high altitude installations, burners are supplied by the factory 
ready for high altitude installation. Check the nameplate for altitude before proceeding with the installation. In 
Canada the adjustment for altitude is made in accordance with Standard CGA 2.17, Gas-Fired Appliances for Use 
at High Altitudes. 

 

Summary of Contents for M) G 025

Page 1: ...DO NOT DO NOT DO NOT touch any electrical switch DO NOT DO NOT DO NOT DO NOT use any telephone in your building IMMEDIATELY IMMEDIATELY IMMEDIATELY IMMEDIATELY call your gas supplier from a neighbor s...

Page 2: ...19 0 Cleaning and Annual Maintenance 34 20 0 Troubleshooting Guide 35 21 0 Replacing Parts 38 21 1 Removal of Spark Electrode 38 21 2 Removing Main Burner and Gas Valve 39 21 3 Air Switch Pressure Ch...

Page 3: ...g Warning Warning instructions must be followed to prevent or avoid hazards which may cause serious injury property damage or death Caution Caution Caution Caution instructions must be followed to pre...

Page 4: ...allation of this appliance is to be in accordance with latest edition of CSA B149 1 Natural Gas and Propane Installation Code b For installation in public garages or aircraft hangars the minimum clear...

Page 5: ...mbient temperature damaged by temperatures 90 F above ambient temperature damaged by temperatures 90 F above ambient temperature Clearances to combustibles are posted on the Clearances to combustibles...

Page 6: ...urrent Current Current Current Rating Rating Rating Rating Natural or Propane MPT Male 3 4 Round 4 Round 120 Volt 60Hz 1 Phase 2 6 Amp Fuse Fuse Fuse Fuse Rating Rating Rating Rating Ignition System d...

Page 7: ...2 STAGE CONTROLS STAGE CONTROLS STAGE CONTROLS STAGE CONTROLS BEACON MORRIS BEACON MORRIS BEACON MORRIS BEACON MORRIS MODEL NO MODEL NO MODEL NO MODEL NO PART NO PART NO PART NO PART NO GAS TYPE GAS...

Page 8: ...available for use to reduce the clearances to combustibles below the heater Refer to the Minimum Clearances to Combustibles Table Minimum Clearances to Combustibles Table Minimum Clearances to Combust...

Page 9: ...iew Bottom View Hanger Bracket QTY 2 Emitter Tube Reflector 8 FT Body Section 18 1 2 470mm 7 1 2 191mm Plastic Vacuum Air Tube 1 4 O D Tube Strain Relief Bushing Motor Leads Sight Glass 1 2 MPT Gas Co...

Page 10: ...upport hanger bracket U bolt clamp 5 16 Hex nuts 3 OD x 8 tube Mounting flange 12 radial holes Mounting flange 12 radial holes Suspension chain with turnbuckle Reflector foot end 5 1 2 80 10 1 2 Refle...

Page 11: ...ovide sufficient lengths or swing joints to compensate for expansion See Figures b and c 5 Heaters subject to vibration must be provided with vibration isolating hangers 6 Heaters must not be supporte...

Page 12: ...ing to Section 7 0 using proper suspension method see Section 9 0 1 1 80 chains for suspension 80 Suspension Chain 18 1 2 18 1 2 1 Trapeze Method Trapeze Method Trapeze Method Trapeze Method Individua...

Page 13: ...5 Attach the control box to the right hand control tube flange and secure with 1 4 20 locknuts The control box must be mounted with the perforated fresh air plate on top facing the ceiling 6 Attach t...

Page 14: ...n detail which allows the reflector to clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to slide under the clamp during heater operation sli...

Page 15: ...that the gas fuel on the burner rating plate matches the fuel for the application 3 Check that the gas supply piping has the capacity for the total gas consumption of the heaters and any other equipm...

Page 16: ...n a tubular type infrared heater per the standard for Connectors A gas connector certified for use on a tubular type infrared heater per the standard for Connectors for Gas Appl for Gas Appl for Gas A...

Page 17: ...he tapped hole Connect the test gauge to the nipple Turn on the gas supply 1 STAGE CONTROLS Pressure Regulator Adjustment under cap screw 1 8 NPT Inlet Pressure Tap with 3 16 Hex Allen Wrench Plug 1 8...

Page 18: ...FOLD PRESSURE MANIFOLD PRESSURE MANIFOLD PRESSURE SUPPLY PRESSURE SUPPLY PRESSURE SUPPLY PRESSURE SUPPLY PRESSURE Minimum Minimum Minimum Minimum Maximum Maximum Maximum Maximum Natural Gas 3 5 W C 5...

Page 19: ...OUND NEUTRAL 120V Motor Lead Wires Motor Lead Wire black Motor Lead Wire white INCOMMING POWER SUPPLY CONNECTION 2 STAGE CONTROLS INCOMMING POWER SUPPLY CONNECTION Viewed From Inside Control Box Draft...

Page 20: ...24 V pressostat Robinet gaz cartement d lectrode 4 7 mm Haute tension Armoire de commande Moteur d amorce d aspiration S il faut remplacer un fil de l appareil d origine utiliser exclusivement des fil...

Page 21: ...THERMOSTAT SINGLE HEATER PER THERMOSTAT SINGLE HEATER PER THERMOSTAT WIRE LEGEND ENGLISH FRANCAIS BK BLACK NOIR W WHITE BLANC R RED ROUGE BL BLUE BLEU G GREEN VERT V VIOLET VIOLET A AMBER AMBRE 42706...

Page 22: ...ing the supply circuit to the heater wiring material having a minimum size of 14 AWG and a temperature rating of at least 90 C shall be used 3 A replaceable 2 amp fuse 1 1 4 long is located inside the...

Page 23: ...W When connecting the supply circuit to the heater wiring material having a minimum size of 14 AWG and a temperature rating of at least 90oC shall be used S il faut remplacer un fil de l appareil d or...

Page 24: ...ATERS PER THERMOSTAT MULTIPLE HEATERS PER THERMOSTAT MULTIPLE HEATERS PER THERMOSTAT Ground N Neutral L1 Hot 120V Fused Disconnect Switch Continue To Additional Heaters 24 V Transformer 1 5 VA rating...

Page 25: ...L1 Hot 120V Fused Disconnect Switch Continue To Additional Heaters 24 V Transformer 1 5 VA rating per relay field supplied 24 V Continue To Additional Heaters Control Box High Fire Manual Switch fiel...

Page 26: ...ocal codes 2 A vent passing through a combustible roof shall extend through an approved clearance roof thimble Double wall Type B vent must be used for the portion of the vent system which passes thro...

Page 27: ...m height specified in the following table These minimum heights may be used provided the vent is not less than 8 feet 2 4m from any vertical wall or similar obstruction 2 All other gas vents shall ter...

Page 28: ...ecify the appropriate number of 24 inch sections of single wall vent pipe and elbows when ordering Vent Pipe Part 30497240 90 Elbows Part 30498040 and 45 Elbows Part 30499040 3 Avoid locating elbows i...

Page 29: ...ipe should be insulated flue pipe or double wall Type B vent 3 Avoid unnecessary bends Limit to two 2 90 elbows 4 The entire length of vent connector shall be readily accessible for inspection cleanin...

Page 30: ...ING UNVENTED HEATERS UNVENTED HEATERS UNVENTED HEATERS UNVENTED HEATERS COMMERCIAL AND INDUSTRIAL INSTALLATIONS ONLY COMMERCIAL AND INDUSTRIAL INSTALLATIONS ONLY COMMERCIAL AND INDUSTRIAL INSTALLATION...

Page 31: ...and discarding the perforated cover and discarding the perforated cover and discarding the perforated cover and discarding the perforated cover An approved vent cap must be placed directly on the end...

Page 32: ...rsaCap Type B 4 Diameter Single Wall Pipe Flashing 1 2 12mm fall per 20ft 6m toward vent terminal Horizontal Through Sidewall 6 15cm Minimum 4 Starting Collar field supplied 3 ft 91cm Minimum Vertical...

Page 33: ...he gas and electrical supply NOTE NOTE NOTE NOTE T T T The lighting and shutdown instructions are also shown on the perman he lighting and shutdown instructions are also shown on the perman he lightin...

Page 34: ...Restrainter Nipple 5 Long 9 Terminal Block and Shield 10 Air Switch 11 Relay 2 stage only 12 Gas Valve 13 3 Pole Terminal Block 2 stage only 14 Orifice 15 Thermostat Connection Block 2 stage only 16...

Page 35: ...are not leaking Check the gas connection to the heater for any signs of damage fatigue or corrosion If there are any signs of damage to the gas connection or leaks found in the gas piping immediately...

Page 36: ...Are they clear and unobstructed Check the pressure at the air switch Is it higher than the minimum required Is the red wire from transformer securely connected to air switch terminal C Move the red w...

Page 37: ...it 24 vac No Yes Move the white wire to the transformer terminal Is the fuse OK on ignition module Yes No Replace the fuse Yes Is there a spark across igniter sensor gap Yes No Is the ground wiring be...

Page 38: ...ck the spark gap Is it 3 16 No Yes Adjust the spark gap to 3 16 Has all the air been purged from the gas supply lines No Yes Purge the gas supply line Check the inlet pressure to the gas valve Is it b...

Page 39: ...Refer to the Replacement Parts Guide in Section 23 0 for all replacement parts 21 1 REMOVAL OF SPARK ELECTRODE A 1 3 2 4 6 5 Access panel only opens to 90 3 16 1 Disconnect electrical supply and open...

Page 40: ...e 0 16 WC Connector Tee Digital or Inclined Water Manometer scale 0 2 w c Temporary 1 4 ID Silicone plastic tubing for pressure test Control Box Air sensing tube bracket 1 Open hinged access panel 2 A...

Page 41: ...l to gas valve d Replace spark module if fuse and power are OK IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS Fenwal 35 Fenwal 35 Fenwa...

Page 42: ...reely and is not rubbing housing Blower wheel may have worked loose from shaft and jammed against housing d Check for blower wheel damage replace if necessary If no damage readjust blower wheel on sha...

Page 43: ...03721000 Motor 1 3 30347000 Motor Spacer 4 per motor 4 4 42740000 Motor Plate 1 5 03723000 Blower Wheel 1 6 43221000 Draft Inducer Gasket 1 7 42744000 Sensing Tube Draft Inducer 1 8 42742000 Sensing T...

Page 44: ...al Gas 1 34 30333260 Valve VR8205Q 3827 10 W C 4 W C Propane Gas 1 35 42701000 Orifice Fitting Test Gauge Connection 1 37 03259xxx xxx xxx xxx Main Burner Orifice State Model Gas Type for Size State M...

Page 45: ...position d arret OFF pour une periode de 60 sec a fin d interrompre le processus de securite 5 Si l appareil ne s allume pas fermez le gaz completement pour une period de 5 min avant d effectuer une n...

Page 46: ...ater 6 42762010 Reflector control end 7 42761010 Reflector foot end 8 44028132 7 1 2 Tube Replacement Kit 3 OD ALC w one 12 radial hole flange 9 42764000 U Bend 3 OD x 3 3 4 centerline radius 10 02251...

Page 47: ...low the heater from combustible materials 43344970 Oct 2013 Installation Code and Annual Inspections Installation and Service of Mestek equipment must be performed by a qualified contractor and confor...

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