Replacement Parts

5
P-UBX-UBZ-UDX-UDZ (05-21) 1034346-0
Table 4. Electrical Components (Unit Sizes 150–400)
Item
No.
Component Description Model
Unit Size
150 175 200 225 250 300 350 400
PN
3 Bracket Limit control
UBX, UBZ 170026 201771 201771 170026 170026 202701 202701
UDX, UDZ 170026 170026 170026 170026
4 Flame rollout switch Refer to Table 3
5 Bracket Control mounting
UDX, UDZ 195294 195294 195294 195294
UBX 202736 202736 202736 202736
UBZ 195294 195294 195294 195294
6 Gasket Control mounting bracket All 195669 195669 195669 195669
7
Circuit
board
DSI control module All 1033741 1033741 1033741 1033741
7A Fuse Circuit board
All
201685 201685 201685 201685
8 Sensor Flame 195292 195292 195292 195292
9 Ignitor Electrode assembly 175272 175272 175272 175272
10 Transformer
25VA, 115V
UDX, UDZ
175265 175265 175265 175265
40VA, 115V
(option CL31)
194808 194808 194808 194808
40VA, 208–230V/1PH
All
194536 194536 194536 194536
40VA, 208–230V/3PH UBX, UBZ 194536 194536 194536 194536
11
Stepdown
transformer
Located on outside of
heater cabinet
UBX, UBZ
11100 11100 11100 11100
202056 202056 202056 202056
350VA, 208–230V 257302 257302 257302 257302
12
Fan motor*
115V, open
UDX, UDZ
196245 271461 271461 196247 196247
115V, TEFC
(option AL14)
196824 196824 196824 196825 196825
13
Capacitor,
fan motor
115V, 7.5μF
(option AL14)
All
195643 195643 195643 — —
115V, 10μF 207448 207448 207448 — —
115V, 15μF
(option AL14)
— — — 217031 217031
14
Pressure
switch
0–6000 feet
UBX 197031 197030
201158
201158
201158
273553
UBZ 197030 201161
UDX
197031 197030
201158
UDZ 201158 201161 273360 201161
>6000 feet
UBX, UDX
1034349 197031 201160
201160
201160
UBZ
273555 273553
UDZ 201160 273553
15
Gas valve,
single-
stage, 1/2
× 1/2
Natural gas,
MH #VR8215T1239
All
260603 260603 — — —
Propane,
MH #VR8215T5214
263999 263999 — — —
Gas valve,
single-
stage, 3/4
× 3/4
Natural gas,
MH #VR8305K4241
— — 196981 196981 196981
Propane,
MH #VR8305K4258
— — 196983 196983 196983
15A
Gas valve,
two-stage,
1/2 × 1/2
Natural gas,
MH #VR8205N2921
197066 197066 — — —
Propane,
MH #VR8205N2913
197064 197064 — — —
Gas valve,
two-stage,
3/4 × 3/4
Natural gas,
MH #VR8305N4297
— — 197067 197067 197067
Propane,
MH #VR8305N4289
— — 197065 197065 197065
16
Terminal
board
24V, 5-pole 196813 196813 196813 196813
17 Gasket Terminal board
UBZ, UDZ
196327 196327 196327 196327
18 Cover Electrical box 201945 201945 201945 201945
19
Switch
Door, interlock,
Carling #TA22B-TLB-B
217262 217262 217262 217262
20 Disconnect 101902 101902 101902 101902
21 Harness Wiring, 9-pin All 1033748 1033748 1033749 1033749 1033750 1033750
—Continued