Replacement Parts Guide

Form P-RG/RP/RBL, P/N 263984R2, Page 11
Code P/N Component Description
1N 61145
Natural gas pilot with orice, high tension lead, ame
probe (less pilot tubing and ame sensor lead)
1P 61146
Propane gas pilot with orice, high tension lead,
ame probe (less pilot tubing and ame sensor lead)
2N 63088 Natural gas pilot orice only (7221)
2P 37801 Propane gas pilot orice only (4209)
3
5145 Pilot tubing, 22" long
9664 Nut with breakaway ferrules (2 required)
4 44675 Sensor lead 9" long
5* 112647 Crimp-on, 90° Rajah terminal connector
6* 112648 90°
Boot Terminal Protector
1N,
1P
2N, 2P
4
5*
6*
3
Replacement Pilot -
All Furnaces
Toggle Switches
P/N 40277, DPDT,
3-Position Toggle
Switch in a
4x4 box
(Same
as
Option
CN1)
P/N 101900, DPDT, 3-Position
Toggle Switch (replaces P/N 21826)
- Used in Option CN1 and Remote
Console
Options RC5,
RC6, RC7,
RC8, RC10,
RC11, RC12
P/N 39732, DPST,
2-Position Toggle
Switch
in a 2x4
box
(Same as
Option
CN2)
P/N 101902, DPST,
2-Position Toggle
Switch
(replaces P/N 16816)
- Used in Options
CN2, AG3, AG8, AG9
and Remote Console
Option RC12
P/N 39733, SPDT,
2-Position Toggle
Switch in
a 2x4 box
(Same as
Option
CN3)
P/N 39748, SPST, 2-Position Toggle Switch in a 2x4
box (Same as Option CN4)
NOTE: When replacing SPST
switch with SPDT switch, make
wiring connections at appropriate
two terminals for switch to
function properly.
P/N 101901, SPDT, 2-Position
Toggle Switch (replaces P/N 1052) -
Used in Options CN3, CN4,
and Remote Console
Options RC3,
RC4, RC7,
RC8, RC11
*Included in the replacement
kit which covers several models of heaters; these parts are not
used when replacing pilots on the heaters covered in this manual.
Replacement
Pilot Kits:
Natural Gas -
P/N 110861
Propane -
P/N 110862
Electrical Components and Sensors when the system is equipped with a specially programmed Johnson
Control Metasys
®
Unit for Direct Digital Control interface with the building's computerized environmental
control system (Options D1, D2, D3, and D4)
Johnson Controls
Metasys
®
direct
digital
control
unit
Blower Cabinet
DDC Control Option for RGB/RPB only D1 D2 D3 D4
Maintains constant mixed entering air temperature X - X -
Maintains constant discharge air temperature - X - X
Modulating Dampers X - X -
On/Off Dampers - X - X
Modulating Gas Control X X - -
Two-Stage Gas Control - - X X
Firestat (see Code 4, page 8) X X X X
Freezestat (see Code 2, page 8) X X X X
Air Proving Switch (see Code 43, page 10) X X X X
Component Description D1 D2 D3 D4
J/C Metasys
®
DDC Interface Unit,
#AS-UNT121-1
171138 171139 171140 171141
EMI Filter, Corcom #3VK1 171738
RBM Relay (2 on D1&2; 3 on D3&4) Replacement Kit for each, P/N 263527
Fuse, 2.5 amp 61542
Fuseholder, Buss HTB-481 60241
Duct Probe Temperature Sensor, J/C
#TE-631 1P-1,
171135
Remote Setpoint Selector,
J/C #TE-6411S-2010
175646
Outdoor Temperature Sensor,
J/C #TE-631 3P-1
171137
SPDT Switch in 2x4 Box (see above) (2) 39733
DDC Damper Interface Module,
H/W Q7230A (see Code 393, pg 23)
171134 -- 171134 --
DDC Gas Control Interface Module
(see photo right)
134170 -- --
DDC Gas Control Interface
Module in Options D1 and
D2, P/N 134170