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Series AA250   

 

 

Page 9   

 

 

 

LT252 Oct 2019    

GENERAL INSTALLATION INSTRUCTIONS 

 

1.  Ensure that the heater is level when it is hung or mounted. Obey all clearances to combustibles, listed on 

the rating plate on the inside of the front door and on page 8 of this manual.  

2.  If installed outdoors, the heater must be mounted at least 18 inches (500 mm) off the ground or at a height 

to prevent snow blockage of the heater’s air inlet. 

3.  The heater must be used with the proper gas regulator connected at the gas supply to control the gas 

pressure at the inlet within the specified range, listed on the rating plate. 

4.  The heater’s gas regulator (with pressure relief valve) should be installed outside of building. Any 

regulators inside the buildings must be properly vented to the outside. Local, state and national codes 

always apply to regulator installation. 

5.  All gas pressure regulators must be installed in strict accordance with the manufacturer’s safety 

instructions. These instructions accompany each regulator. 

6.  Ensure that all accessories that ship with the heater have been installed. This pertains to air diverters, 

hose, regulators, etc. 

7.  A sediment trap must be installed at the gas inlet. See the section on page 15 for detailed instructions. 

8.  An accessible and approved manual shut off valve must be connected to the piping system within six feet 

(2 m) of the heater. 

9.  Check all connections for gas leaks. Gas leak testing is performed as follows: 

o

  Check all pipe connections, hose connections, fittings and adapters upstream of the gas control with 

approved gas leak detectors 

o

  In the event a gas leak is detected, check the components involved for cleanliness and proper 

application of pipe compound before further tightening. 

o

  Further tighten the gas connections as necessary to stop the leak 

o

  After all connections are checked and any leaks are stopped, turn on the main burner 

o

  Stand clear while the main burner ignites to prevent injury caused from hidden leaks that could cause 

flashback. 

o

  With the main burner in operation, check all connections, hose connections, fittings and joints as well 

as the gas control valve inlet and outlet connections with approved gas leak detectors. 

o

  If a leak is detected, check the components involved for cleanliness in the thread areas and proper 

application of pipe compound before further tightening. 

o

  Tighten the gas connection as necessary to stop the leak 

o

  If necessary, replace the parts or components involved if the leak cannot be stopped. 

o

  Ensure all gas leaks have been identified and repaired before proceeding. 

10. A qualified service agency must check for proper operating gas pressure upon installation of the heater. 

11. Light according to instructions on heater or within owner’s manual 

12. It is extremely important to use the proper size and type of gas supply line to assure proper functioning of 

the heater. Contact your fuel gas supplier for proper line sizing and installation. 

13. This heater can be configured for use with either propane or natural gas. Consult the rating plate, located 

on interior of the burner end or motor end door, for the gas configuration of the specific heater.  

14. In the case of thermostat failure, a separate back-up control system should be implemented in order to limit 

high and low temperatures and activate appropriate alarms, in order to protect livestock. 

15. Take time to understand how to operate and maintain the heater by using this Owner’s Manual. Make sure 

you know how to shut off the gas supply to the building and also to the individual heater. Contact your fuel 

gas supplier if you have any questions.  

16. Do not exceed the input rating or burner manifold pressure stated on the rating plate. Use only the orifices 

supplied by the manufacturer and specified for the fuel type configuration. 

 

 

Содержание AA250 Series

Страница 1: ...you smell gas 1 Open windows 2 Don t touch electrical switches 3 Extinguish any open flame 4 Immediately call your gas supplier OWNER INSTALLER Retain this Manual ensure available for service Imprope...

Страница 2: ...st safely allow this movement Failure to do so could result in serious fire or explosion hazard CAUTION FIRE OR EXPLOSION HAZARD This heater is equipped with an automatic ignition device Do not attemp...

Страница 3: ...WALL MOUNTING 12 LIGHTING AND SHUTDOWN INSTRUCTIONS 13 START UP INSTRUCTIONS 13 SHUT DOWN PROCEDURE 13 ELECTRICAL DIAGRAM 14 GAS PIPING 15 VENTING COMBUSTION AIR 16 GENERAL REQUIREMENTS 16 FUEL CONVE...

Страница 4: ...called on for helpful suggestions about installation Installation Codes Installations must comply with local building codes or in their absence the latest edition of the national regulations and proc...

Страница 5: ...ed cfm 1000 Supply Pressure Minimum Natural Gas In W C 5 Propane In W C 11 Burner Manifold Pressure Nominal Heat Input Partial Heat Input Natural Gas In W C 4 2 Propane In W C 10 4 6 Inlet Connection...

Страница 6: ...UG040 Orifice Propane 6 1 BS025 Motor Interface Plate 22 1 UG028 Orifice Natural Gas 7 1 BE012 Motor 115V 60Hz 1074 rpm 23 2 CH290 10 32 x 1 4 Head Phillips Screw 8 1 BS029 Burner Mount 24 1 BS045 Ign...

Страница 7: ...iption 1 1 BS035 Lid 2 1 CH270 Door Latch 3 1 CH011 Sight Glass 4 2 CH285 PG13 5 Liquid Tight Fitting 5 1 CE058 TRANSFORMER 120 24V 40VA 50 60 Hz 6 1 VE096 Terminal Strip 6 port 7 1 CH264 WELD BOLT 10...

Страница 8: ...capable of being ignited and burned Such materials shall be considered combustible even though flame proofed fire retardant treated or plastered The stated clearance to combustibles represents a surf...

Страница 9: ...ter all connections are checked and any leaks are stopped turn on the main burner o Stand clear while the main burner ignites to prevent injury caused from hidden leaks that could cause flashback o Wi...

Страница 10: ...ed for lifting and must be attached to all four 4 eyebolts Assemble eyebolts and chain according to the figure below Only use chain rated for lifting and must be connected on all four eyebolts All cha...

Страница 11: ...o 45 degree paths or to focus the air flow in one 45 degree direction The tabs on each half will slide into the blower outlet between the inside of the case assembly and the blower housing outlet If t...

Страница 12: ...Heater on the inside of the building with airflow coming from outside the building 3 Heater on the outside of the building with airflow coming from inside the building 4 Heater on the outside of the...

Страница 13: ...oting Only qualified and properly trained personnel shall service or repair the heater 5 On a call for heat the motor will start up and run for 30 seconds This pre purge is a safety feature and normal...

Страница 14: ...rom factory equipped with jumpers between R W1 and R W2 contacts If energized the heater will start running at full load high fire If the heater is operated with a two stage thermostat remove the jump...

Страница 15: ...oleum LP gases Flexible gas connectors of approved type must be installed without sharp bends kinks or twists Failure to install the gas connection in the approved manner will result in a hazardous an...

Страница 16: ...Refer to the National Fuel Gas Code ANSI Z223 1 NFPA 54 in the US and CSA B149 1 Installation Code in Canada as well as all local requirements for general venting guidance The Nation Fuel Gas Code req...

Страница 17: ...valve out to expose the orifice 7 Use a 1 2 wrench or socket to remove the orifice from the burner manifold Inspect the orifice and burner manifold for wear or damage 8 Clean the threads in the burner...

Страница 18: ...e heater a thorough cleaning At this time remove the fan and motor assembly and brush or blow off the fan wheel giving attention to the individual fan blades Additionally make sure the burner air inle...

Страница 19: ...reverse to re assemble motor Fan wheel to interface plate clearance must be set to 0 5 inches 13mm Make sure the set screw of the fan is on the flat of the motor shaft when tightening Figure 8 Motor...

Страница 20: ...heck the flame sensor s insulator base for cracks If cracks are found replace the igniter sensor assembly Perform an ohm check at the ignition control terminals to verify the circuit integrity of the...

Страница 21: ...er above the burner and is connected between the ignition control and the gas control valve The switch is normally closed and will open the switch contacts if an overheat condition occurs The high lim...

Страница 22: ...call for heat Understanding the operation sequence of the ignition module and related components is essential as it will relate directly to problem solving provided by the flow charts The ignition co...

Страница 23: ...ted the gas valve remains open and sparking stops o If no flame is detected the gas valve closes and a 30 sec inter purge period begins After the inter purge the module repeats the trial for ignition...

Страница 24: ...Series AA250 Page 24 LT252 Oct 2019...

Страница 25: ...Switch BE005 4 Sail Switch BE025 5 Burner BG004 6 Burner manifold BG013 7 Vent BS051 8 Transformer 120 24V 40 VA 50 60Hz CE058 9 Control Module CE266 10 Valve NG W R 2 stage CG062 11 Igniter Flame Se...

Страница 26: ...his warranty does not cover any shipping installation or other costs incurred in the repair or replacement of the product No materials will be accepted for return without authorization This warranty w...

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