13 electrical components - models oh and ob – Reznor OH Parts Manuals User Manual
Page 3
Form P-OH, P/N 272437,Page 3
1-stage, 24 volt,
50-90°F,
P/N 255350 (Same
as Option CL1)
Code 20 -
Thermostat
Code 4 - Draft
Booster Relay
Assembly (Same
as Option DH1)
2
1
3
6
9
Code 13 - Backflow Sensor
Switch (CSA Units only
beginning 1/06) - located at
the flame view port
13
Electrical
Components -
Models OH and OB
Code Description
P/N
1
Main Electrical Control Box
119810
2
Electrical Box Cover
119812
3
Main Control Switch, DPST 20A, Cutler Hammer #7630K40
104840
4
Draft Booster Relay Kit (Same as Option DH1) - includes wiring, relay,
hardware, and instructions
110780
4A Draft Booster Relay only for unit mfgd before 08/1201, order Replacement Kit 263530
Draft Booster Relay only for unit mfgd after 08/2011, order relay
P/N 102385
5
Open/Closed Bushing, Heyco #0CB-562
98394
6
Cable Clamp, 1/4", Heyco #3324
52961
7
Dart Fastener, TRW #PC47307EV2001
101798
8
Terminal Block
144972
9
Blower /Fan Junction Box 2x4, Steel City #5836
17782
10 Strain Relief, Heyco #SR-6N3-4
100393
11 Strain Relief, 90
o
F, Heyco #SR-20-1
96449
12 Adapter, Heyco #7572
107165
13 Blocked Vent (Backflow Sensor) Switch (CSA units only) Open 275°F
121275
14 Blocked Vent Switch Gasket
121341
15 Oil Safety Valve, Suntec #PRV-38 (Option DC1)
50350
16 Oil Burner Solenoid Valve, GC #K271FA312C5 (Same as Option DD1)
43487
17 Oil Booster Pump (30GPH), Sunstrand #BH-1030M (Same as Option DA1)
37862
18 Oil Booster Pump (70GPH), Sunstrand #BH-1070M (Same as Option DA21)
37863
19 Booster Pump Pressure Switch, Sunstrand #128117 (Same as Option DF1)
37864
20 Thermostat, Honeywell #T87F3665 (Option CL1)
39581
Mounting Plate
Super
Limit,
P/N
106845
Circulating Air High Limit - Size 95, P/N
120680; Sizes 140 and 190, P/N 106847
Fan/Blower
Control,
P/N 146465
NOTE: Temperature settings on the current replacement fan
control are different from the previous control. Because of a
change in construction of the switch, however, these controls
will perform a nearly identical control function.
Code 25 - Fan and Limit Control Assembly
Code Description
95
140
190
25
Fan and Limit
Control Assembly
(includes plate and
all controls)
123977
(replaces
120679)
123973
(replaces
104837)
123973
(replaces
104837)
Remove
cover to
access
Code 25
(below).