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MGHA and MMHA Series
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MGHA056
MGHA066
MGHA070
MGHA090
MGHA90PQ
MMHA056
MMHA066
MMHA070
MMHA075
MMHA090
1ST
PRODUCTION
SEPTEMBER 1990
#
DESCRIPTION
MGHA MMHA MFG#
PART#
PRICE
-056 -066 -070 -075 -090 -90PQ -056 -066 -070 -075 -090
1
Louvered Door
(w/2-Door Latches)
1 1 1 1 1 1 1 1 1 1 1 902004
239842

Coil Door (AB Model)
Incl. 2-Door Latch
1 1 1 1 1 1 1 1 1 1 1 902005    
2
Name Plate (Miller)
1 1 1 1 1 1 1 1 1 1 1 687013
 

Name Plate (Intertherm) 1 1 1 1 1 1 1 1 1 1 1 687012    
3
Decorative Door Insert
1 1 1 1 1 1 1 1 1 1 1 668772


4
Door Latch (2 Req'd)
1 1 1 1 1 1 1 1 1 1 1 668420
231280

5
Air Filter
1 1 1 1 1 1 1 1 1 1 1 668780
239654
$
6
Air Filter Retainer
1 1 1 1 1 1 1 1 1 1 1 668788
238180
$
7
HSI Control
            1 1 1 1 1 626333
239624
8
Control Box Cover
1 1 1 1 1 1 1 1 1 1 1 246710


9
Control Box
1 1 1 1 1 1 1 1 1 1 1 355390


10
SPDT Switch
1 1 1 1 1 1 1 1 1 1 1 631947


11
Cap Pin
1 1 1 1 1 1 1 1 1 1 1 631728


12
Transformer
1 1 1 1 1 1            621094
239609
Transformer             1 1 1 1 1 621096 239610  
13
Fresh Air Pipe 4"
1 1 1 1 1 1 1 1 1 1 1 356271


14
Shelf Divider
1 1 1 1 1 1 1 1 1 1 1 355500


15
Collar
1 1 1 1 1 1 1 1 1 1 1 246850


16
Lower Air Box
        1 1 1 1 1 1 1 461120


17
Close-Off Shelf Divider
1 1 1 1 1 1 1 1 1 1 1 247360


18
Tape, Foam
1 1 1 1 1 1 1 1 1 1 1 688877


19
Burner HSI/56-90,000
(Less Nain Orifice)
            1 1 1 1 1 902651
238044
$
20
Valve Gasket
1 1 1 1 1 1 1 1 1 1 1 689009
230093
$
21
Limit - 160*F Open/40*F
Diff.
1 1         1 1       626336
239625
 
Limit - 155*F Close/40*F
Diff
      1 1 1       1 1 626341 239629    
Limit - 140*F Open/40*F
Diff.
    1           1     626279 239630    
22
Fan Limit-115
1 1 1 1 1 1 1 1 1 1 1 626337
239626  
23
Front Air Casing
1 1 1 1 1 1 1 1 1 1 1 458230

 
24
Incl. 2 Pipe Heat
Exchanger Assy.
464760 Plus Item 26
Gasket
1 1 1       1 1 1 1   902032

 
Incl. 3 Pipe Heat
Exchanger Assy.
465020 Plus Item 26
Gasket
      1               902033  
 
Incl. 3 Pipe Heat
Exchanger Assy.
464770 Plus Item 26
Gasket
        1         1 1 902034    
25
1/4 - 20 Nut (6 Req'd)
1 1 1 1 1 1 1 1 1 1 1 606005


26
Radiator Plate Gasket
1 1 1 1 1 1 1 1 1 1 1 689050


27
Incl. Radiator Assy.
464830 Plus Items 28,29
and 26
1 1 1 1 1 1 1 1 1 1 1 902036

 
Heat Exchanger and
Radiator Assy.
1 1 1       1 1 1     902758 231220  
Heat Exchanger and
Radiator Assy.
      1   1           902760 231221  
Heat Exchanger and
Radiator Assy.
                  1 1 902759 231222  
28
Heat Exchanger Insulation
1 1 1 1 1 1 1 1 1 1 1 689050


29
Upper Flue Pipe
1 1 1 1 1 1 1 1 1 1 1 355070


30
Top Air Casing
1 1 1 1 1 1 1 1 1 1 1 462570


31
Upper Air Box
1 1 1 1 1 1 1 1 1 1 1 458740


32
Cabinet (AB Models)
1 1 1 1 1 1 1 1 1 1 1 458370



33
Door Strike (2 Req'd)
1 1 1 1 1 1 1 1 1 1 1 668421
231281
34
Shelf (AB Models)
1 1 1 1 1 1 1 1 1 1 1 355050


35
Right Coil Close-Off
(AB Models)
1 1 1 1 1 1 1 1 1 1 1 355490


36
Left Coil Close-Off
(AB Models)
1 1 1 1 1 1 1 1 1 1 1 355480


37
Burner (56,000-90,000)
Less Main Orifice
1 1 1 1 1 1




902007
238049
 
38
Lower Air Box
1 1 1 1






458750


39
Cabinet Assembly
1 1 1 1 1 1 1 1 1 1 1 458360

 
40
Wheel, Combustion






1 1


667186

 
Wheel, Combustion




1

1 1 1 667187 230137  
41
Scroll





1 1 1 1 1 1 355510


42
Mounting Plate





1 1 1 1 1 1 355860


43
Motor, Combustion





1 1 1 1 1 1 621080
239601

44
Grommet






1 1 1 1 1 668785


45
Blower Assembly
(56,000)
1




1



902008


Blower Assembly
(66,000)

1




1


902009

Blower Assembly
(70,000, 75,000)


1 1



1 1
902010    
Blower Assembly
(90,000)




1 1



1 902011    
46
Capacitor Strap




1 1



1 118380


47
Capacitor 10 MFD 370V




1 1



1 620233

102121
48
Capacitor Boot




1 1



1 631330


49
Motor (56,000) 1/8 HP 1




1



901872

231052
Motor (66,000, 70,000,
75,000) 1/5 HP

1 1 1


1 1 1
901873 239602
Motor (90,000) 1/4 HP



1 1



1 901874 239603  
50
Circuit Plug
1 1 1 1 1 1 1 1
1 1 631724


51
Blwr Wheel
(56,000, 66,000) 9 x 7
1 1



1 1


667149
230253
Blwr Wheel (70,000,
75,000, 90,000) 10 x 8


1 1 1 1

1 1 1 667037 231026  
52
Gas Valve
1 1 1 1 1 1




624491
231335 $199.68
Gas Valve (HSI)





1 1 1 1 1 624490 239616  
53
Thermocouple
1 1 1 1 1 1




631132
231350
54
Pilot Tube
1 1 1 1 1 1




247620
231065
55
Spud Plate
1 1 1 1 1 1 1 1 1 1 1 247690
230251

56
Natural Gas Orifice
(56,000) Drill #29
1




1



660615
230131
 
Natural Gas Orifice
(66,000) Drill #26

1




1


660580    
Natural Gas Orifice
(70,000) Drill #23


1




1

660800 238201  
Natural Gas Orifice
(75,000) Drill #22



1




1
660581 238206  
Natural Gas Orifice
(90,000) Drill #17




1 1



1 660582 231102  
PG Orifice
(56,000)(**NS) Drill #45
1




1



660583 238203  
LPG Orifice
(66,000)(**NS) Drill #43

1




1


660584 NLA  
LPG Orifice
(70,000)(**NS) Drill #42


1




1

660799 238199  
LPG Orifice
(75,000)(**NS) Drill #41



1




1
660585 230146  
LPG Orifice
(90,000)(**NS) Drill #36




1 1



1 660586 231106  
57
Burner Plate
1 1 1 1 1 1 1 1 1 1 1 247650


58
Tube Cover
1 1 1 1 1 1 1 1 1 1 1 247640


59
Air Shutter
1 1 1 1 1 1 1 1 1 1 1 247660


60
Venturi
1 1 1 1 1 1 1 1 1 1 1 356140
230251

61
Pilot Burner
1 1 1 1 1 1




660575
231099

62
Pilot Shield
1 1 1 1 1 1




247630
231062

63
Valve Support
1 1 1 1 1 1 1 1 1 1 1 247610


64
Ignightor Pin Plug






1 1 1 1 1 250030


65
Ignightor






1 1 1 1 1 632088
239634
66 Limit 140 deg
Open/Manual Re-set
1 1 1 1 1 1 1 1 1 1 1 626340 231156  
67 Pilot Burner Rod
(Not Shown)
1 1 1 1 1 1           618020    
68 Complete Blower, 1.5 -
3.5 Top Cooling, Multi-Sp.
(Includes Items 46-48, 69,
51)
1 1 1 1 1 1 1 1 1 1 1 901998    
69 Motor - 1/3 HP
(A/C Motor)
1 1 1 1 1 1 1 1 1 1 1 901875 239604  
70 Piezo Ignightor Kit
(Optional)(NS**)
1 1 1 1 1  
          901997 233087  
71 Relay           1           660190 231348  
N/S Pilot Orifice .014 LP/N                       660791 230130  
** Not shown
Caution !

There are no returns on furnace parts.




PRICES SUBJECT TO CHANGE WITHOUT NOTICE.

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