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14

Vent Terminal Assembly

Outdoor

1.  Remove the (4) screws which fasten jacket top to

heater.

2.  Lower outdoor top onto unit lining up slots in out-

door top with screw holes in jacket top.

3.  Reinstall (4) screws to secure jacket top and out-

door top to unit.

Indoor

Locate and assemble as shown. Secure with screws
supplied in envelope inside carton.

Outdoor Top

Jacket Top

Fig. 7: Heater with Outdoor Top

Drafthood

Mounting
Screws

Fig. 8: Heater with Indoor Top

Vent Piping

Vent piping the same size or larger than the drafthood
outlet is recommended, however, when the total vent
height is at least ten (10) feet (drafthood relief opening
to vent terminal), the vent pipe size may be reduced as
specified  in  Chapter  10  of  the  latest  edition  of  the
National  Fuel  Gas  Code,  ANSI  Z223.1  (Canada-
CAN/CGA B-149). 

As  much  as  possible,  avoid  long  horizontal  runs  of
vent pipe and too many elbows. If installation requires
horizontal or or non-vertical runs, the vent pipe must
have a minimum of 1/4 inch per foot rise and should be
supported  at  not  more  than  five  foot  intervals.
Plumbers' tape, criss-crossed, will serve to space both
horizontal and vertical piping. 

Gas vents supported only by the flashing and extend-
ing  above  the  roof  more  than  five  feet  should  be
securely guyed or braced to withstand snow and wind
loads.  We  recommend  use  of  insulated  vent  pipe
spacer through the roofs and walls.

For  protection  against  rain  or  blockage  by  snow,  the
vent pipe must terminate with a vent cap which com-
plies  with  the  local  codes  or,  in  the  absence  of  such
codes,  to  the  latest  edition  of  the  National  Fuel  Gas
Code, ANSI Z223.1 (Canada-CAN/CGA B-149).

The discharge opening must be a minimum of 2 ft. ver-
tically  from  the  roof  surface  and  at  least  2  ft.  higher
than any part of the building within ten feet. Vent stack
shall be at least five feet in vertical height above the
drafthood  outlet.  The  vent  cap  location  shall  have  a
minimum clearance of 4 ft. horizontally from, and in no
case  above  or  below,  unless  a  4-foot  horizontal  dis-
tance is maintained  from electric meters, gas meters
regulators and relief equipment.

The weight of the vent stack or chimney must not rest
on  heater  drafthood.  Support  must  be  provided  in
compliance with applicable codes. The heater top and
drafthood must be readily removable for maintenance
and inspection. Vent pipe should be adequately sup-
ported to maintain proper clearances from supported
to maintain proper clearances from combustible con-
struction.

WARNING:

Indoor boilers require a drafthood that

must  be  connected  to  a  vent  pipe  and  properly
vented to the outside. Failure to follow this procedure
can cause fire or fatal carbon monoxide poisoning.

Содержание 055B

Страница 1: ...r appliance To do so may result in an explosion or fire WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediate...

Страница 2: ...2 Rev 24 reflects the following Changes to Water Chemistry Table A on page 5 Wiring Diagram on page 20...

Страница 3: ...10 Receiving Equipment 10 General Specifications 11 INSTALLATION 11 Code Requirements 11 Base Installation 11 Clearances 11 Outdoor Heaters 13 Indoor Heaters 13 Combustion Air Indoor Units Only 13 Ven...

Страница 4: ...to the heater WARNING CALIFORNIA PROPOSITION 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm CAUTION Verify proper operatio...

Страница 5: ...atic chemical dosing devices and salt chlo rinators are usually more efficient in heated water unless controlled they can lead to excessive chlo rine level which can damage your heater Further advice...

Страница 6: ...and burner The flame should be blue with a well defined pattern A yellow or floating flame indicates restricted air openings or incorrect orifice size Should this occur shut the heater off and contact...

Страница 7: ...way and hold in Immediately place flame to pilot to light Continue to hold control knob in for about 1 minute after the pilot is lighted release knob and it will pop back up Pilot should remain lighte...

Страница 8: ...ance is equipped with an ignition device which automatically lights the pilot Do not try to light the pilot by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next...

Страница 9: ...s advice before using pools or hot tubs 6 Persons taking medications which induce drowsi ness such as tranquilizers antihistamines or anticoagulants should not use spas or hot tubs MAINTENANCE AND CA...

Страница 10: ...F can seriously damage the heater and will void the warranty For cold climate areas please follow the winterizing procedures listed below Winterizing the Spa Heater When heaters installed outdoors in...

Страница 11: ...accordance with local codes or in the absence of local codes with the latest editions of the National Fuel Gas Code ANSI Z223 1 and the National Electrical Code ANSI NFPA 70 for Canada the latest edi...

Страница 12: ...and at least 18 on the left side of the heater to inspect and de lime the heat exchang er Heaters must not be installed under an overhang of less than three 3 feet from the top of the heater Three 3...

Страница 13: ...llation when equipped with the approved drafthood For Canada indoor installation is restricted to an enclosure that is not occupied and does not directly communicate with occupied area Refer to the la...

Страница 14: ...should be securely guyed or braced to withstand snow and wind loads We recommend use of insulated vent pipe spacer through the roofs and walls For protection against rain or blockage by snow the vent...

Страница 15: ...testing of that system at test pressures in excess of 1 2 psig 3 45 kPa Dissipate test pressure in the gas supply line before reconnecting the heater and its manual shut off valve to gas supply line F...

Страница 16: ...installation is plumbed as follows 1 The inlet side of the filter is plumbed directly to the discharge side of the filter pump 2 The outlet side of the filter is then plumbed to the inlet of the heate...

Страница 17: ...er High chemical concen trations will result when the pump is not running e g overnight Chlorinators must feed downstream of the heater and have an anti siphoning device to prevent chemical backup int...

Страница 18: ...ittent Ignition Device IID System The Electronic Intermittent Ignition Device automati cally lights the pilot and main burners upon a call for the heat The heater is supplied with a dual voltage trans...

Страница 19: ...0V operation 120V ATMOSPHERIC HEATER 120V LOW NOx HEATER SUPPLY SIDE RETURN or NEUTRAL HEATER 4 WIRES H GROUND L L1 RED BLACK B HOT BLACK GREEN GREEN WHITE WHITE Fig 20 120V Wiring 240V ATMOSPHERIC HE...

Страница 20: ...20 Wiring Diagram Millivolt Units with Mechanical Thermostat...

Страница 21: ...21 Wiring Diagram IID Units BL BL BL...

Страница 22: ...ng the knobstop ring to the desired location and retightening the set screw Drain Valve Solid State Thermostat Ignition Control Pressure Switch Burner Pilot Thermal Fuse HIGH LIMITS Located in the Inl...

Страница 23: ...flow on the low speed is insuffi cient to operate the heater This is apparent when the pressure switch cannot be further adjusted or if the heater makes banging noises In these cases the pump must be...

Страница 24: ...emove burner tray See Burner Tray Removal procedure 2 Disconnect pilot tubing from gas valve 3 Remove gas valve with manifold from burner tray 4 Remove manifold from gas valve 5 Reverse above procedur...

Страница 25: ...tely from between fins Avoid excessive water against refractory Combustion Chamber Removal 1 Remove heat exchanger See Heat Exchanger Removal procedure 2 Lift up and remove front and rear refractory s...

Страница 26: ...nlet Inlet Outlet Header Retainer Spring Fig 31 Unitherm Governor Location To test the operation of the Unitherm Governor place in hot water over 110 F and watch for movement against spring If there i...

Страница 27: ...heat exchanger g n i t o o S Highflowrates Reduce by adding manual bypass valve and adjust by putting thermometer in header 1 4 NPT drain opening Set bypass so thermom eter reads between 105 and 110...

Страница 28: ...emain lit attach millivolt meter and read pilot output If below 500millivolt check gas pressure Also check for insects or debris in the pilot burner If main burner fires remove jumper Replace gas valv...

Страница 29: ...nd wire Clean flame rod Check electrical connections between flame rod and module Check for cracked ceramic flame rod insulator Check that pilot flame covers flame rod and is steady and blue Adjust pi...

Страница 30: ...21 5 28 5 V Check transformer 120 V supply correct as necessary TEMPERATURE 105 106 F Control ok RESISTANCE 0 OHMS SHORT CIRCUIT Check system for shorted wires or open circuits Replace sensor if neces...

Страница 31: ...er standard company warranties must be properly tagged with return parts tag completely filled in with the heater serial number model number etc and shipped to the Company freight prepaid If determine...

Страница 32: ...H 12 H 6 H 5 H 4 H 10 H 13 H 2 V 4 S 4 M 3 M 6 S 5 M 1 B 6 M 5 S 4 C 11 P 9 M 1 G 2 B 3 B 5 C 1 M 2 M 3 C 6 C 7 M 1 R 3 S 2 H HONEYWELL MILLIVOLT PILOT HONEYWELL IID PILOT Fig 8132 Fig 8133 9 P 1 P 1...

Страница 33: ...Combination Valve Nat IID 003900F Combination Valve Pro IID 004306F H HEAT EXCHANGER 1 H Heat Exchanger Assy Complete 004694F 2 H Header Tubed Kit 004695F 3 H Baffle Kit 004715F 14 H U G Assy 002546F...

Страница 34: ...t Mounting Bracket IID 004717F Pilot Tube 004078F 15 P Hi Tension Wire IID 002654B Hi Tension Wire w Pilot Electrode 007864F R REFRACTORY 1 R Refractory Block Kit 003544F S SHEETMETAL 1 S Jacket Top 0...

Страница 35: ...35...

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