Replacement Parts
Table Of Contents
- UNIT HEATER REPLACEMENT PARTS (MODEL UBX: STANDARD POWER VENT BLOWER TYPE, MODEL UBZ: SEPARATED-COMBUSTION BLOWER TYPE, MODEL UDX: STANDARD POWER VENT FAN TYPE, AND MODEL UDZ: SEPARATED-COMBUSTION FAN TYPE)
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P-UBX-UBZ-UDX-UDZ (05-21) 1034346-0
HEAT EXCHANGER AND BURNER ASSEMBLIES—CONTINUED
Table 19. Burner Assembly Components (Unit Sizes 150–400)
Item
No.
Component Description Model
Unit Size
150 175 200 225 250 300 350 400
PN (Quantity)*
1
Burner shield
Front side
UDX, UDZ
222107 222108 222109 222110 222111
222112
UBX, UBZ 222112 222113
2 Rear side
UDX, UDZ
222133 222134 222136 222137 222138
222139
UBX, UBZ 222139 222140
3 Burner assembly All 195237 195238 195239 195240 195241 195242 195243
4 Gasket
Burner end
(not shown)
All 195668 (2) 195668 (2) 195668 (2)
5 Burner baffle (not shown) All 197238 (2) 197238 (2) 197239 (2) —
6 Burner support (not shown) All 196598 (4) 196598 (6) 196598 (6)
7 Burner orifice Refer to Table 20
8 Nut, pipe 1/2 All 165702 165702 165702
9
Bushing, orifice
adapter
1/2 × 1/4 All 165701 — —
3/4 × 3/8 All — 194809 194809
10
Primary air
restrictor
For propane
only
All 196688 — — —
11
Gas conversion
kit (not shown)
Natural gas to
propane
All 1036539R 1036540R 1036540R 1036543R 1036543R
Propane to
natural gas
All 1036547R 1036548R 1036548R 1036549R 1036549R
12
Heat exchanger
assembly,
includes
gaskets, tube
supports, and
tube support
channels
Aluminized
(AC1)
UDX 1034589 1034593 1034597 1034601 1034605 1034609 1034613
UBX, UBZ,
UDZ
1034590 1034594 1034598 1034602 1034606 1034610 1034614
409 stainless
steel (AC2)
All
1034592 1034596 1034600 1034604 1034608 1034612 1034616
316 stainless
steel (AC4)
1034591 1034595 1034599 1034603 1034607 1034611 1034615
12A Gasket kit
Heat
exchanger
All 201670 201671 221214 201672 201672
*Quantity is one (1) unless otherwise indicated.
Table 20. Burner Orifices
Unit Size*
Natural Gas Propane
Orifice (Drill) Size PN Orifice (Drill) Size PN
030 #39 196852 1.6-mm 196844
045 3.1 mm 120144 #48 196845
060 #28 124969 2.25 mm 1034350
075 #22 196361 #40 120137
100 #14 208247 #32 120141
125 #10 120158 3.1 mm 120144
150 5.6 mm 208243 3.5 mm 120148
175 6.0 mm 208245 #27 120149
200 F 120167 4.1 mm 196900
225 6.95 mm 221121 11/64 inch 196901
250 L 208255 4.6 mm 1034352
300 7.8 mm 208253 #8 196903
350 8.5 mm 1034354 5.4 mm 1034353
400 9.2 mm 1034355 5.8 mm 196905
*All models.