Replacement Valves
Table Of Contents
- SAFETY WARNINGS AND GUIDELINES FOR A QUALIFIED SERVICE TECHNICIAN
- Instructions for Selecting a Replacement Ignition Controller and/or Valve
- Serial Number and Model Codes
- Serial No. Decoding
- Serial Number Key - Month and Year of Manufacture
- Heater Serial No. PREFIX and SUFFIX Codes
- Model No. Decoding
- Safety Pilot or Ignition System Originally Supplied, Identified by Serial No. Code -- See Serial No. Decoding on pages 3-4. (N/A = Not available; see other notes below.)
- Type of Valve Originally Supplied -- See Serial No. Decoding on pages 3-4.
- Maxitrol Components for Electronic Modulation - Indirect-Fired Equipment Model Series X, SC, RG, RP, RX, RPV, and EEDU with Options AG7, AG8, AG9, AG21, AG39, AG40, AG41, or AG42
Form P-VALVES, P/N 263995, Page 28
Kit P/N 262320 replaces
A1010B Amplier, P/N 48035,
used in Maxitrol 21HR (Option
AG9) and 20AH (Option AG7)
Systems and 1011F Amplier,
P/N 48036, in Maxitrol 30AH
(Option AG7) and 31HR
(Option AG9) Systems
P/N 48041, TS12MT2-12 Duct Sensor used in
Maxitrol 21H, 21HR, 31H and 31HR Systems,
Option AG8 and AG9
P/N 133228,
Duct Sensor,
Maxitrol TS194,
used in Option
AG39 and
Option AG41
Other Replacement Maxitrol
Discharge Air Sensors (sensor
only, no box) - match with selector:
#TS121A, P/N 194261
#TS121B, P/N 194262
#TS121F, P/N 194263
Maxitrol Components for Electronic Modulation - Indirect-Fired Equipment
Model Series X, SC, RG, RP, RX, RPV, and EEDU with Options AG7, AG8, AG9,
AG21, AG39, AG40, AG41, or AG42
(References: For modulation control components for PREEVA Models PDH, SDH, and RDH, see replacement parts Form P-PRE-
EVA. For MAPSII, see replacement parts Form P-MAPSII.)
Maxitrol Temperature Selectors/Thermostats, Temperature Sensors, and Ampliers
Maxitrol System 20AH 30AH 21H 31H 21HR 31HR Series 92
Serial No. Sufx Code MV-1 MV-2 MV-3 MV-5 MV-4 MV-6 MP-1 MP-3
Reznor
®
Model Series X, SC, RX, RPV, RG, RP, EEDU INDIRECT-Fired Furnaces with Option
Components by Option AG7 AG8 AG9 AG39 AG41
Number of Furances
Single
Furnace
Multiple
Furnaces
Single Fur-
nace
Multiple
Furnaces
Single Fur-
nace
Multiple
Furnaces
Single
Furnace
Multiple Furnaces
(Maxitrol components
on 1st furnace only)
Temperature
Selector
Reznor
®
P/N
-- -- On the Amplier
48042 48042 174849 174849
Maxitrol # TD-121 TD-121 TD92-0509 TD92-0509
Selectrastat
Reznor
®
P/N 48033 48033
-- -- -- -- -- --
Maxitrol # T120 T120
Optional
Override
Thermostat
Reznor
®
P/N -- -- 24857 24857 24857 24857 -- --
Maxitrol # T-115 T-115 T-115 T-115
Sensor
(P/N 48041
includes mix-
ing tube)
Reznor
®
P/N -- -- 48041 48041 48041 48041 133228 133228
Maxitrol # TS-121 TS-121 TS-121 TS-121 TS194 TS194
Mixing Tube
Only
Reznor
®
P/N -- -- 90323 90323 90323 90323 90323 90323
Maxitrol # MTI-12 MTI-12 MTI-12 MTI-12 MTI-12 MTI-12
Amplier
Reznor
®
P/N 48035 48036 48037 48038 48035 48036 174848 174848
Maxitrol # A1010B A1011B A1010F A1011F A1010B A1011B A1092 A1092
P/N 48033, T120
Thermostat used in
Maxitrol 20AH and
30AH Systems,
Option
AG7
P/N 48042, TD121 remotely
located Temperature Selector
used in Maxitrol 21HR and
31HR Systems, Option AG9
(box not included)
Selector with box, P/N 158465
P/N 24857, T115
Overriding Thermostat
used in Options AG8
and AG9
(Also used
on Direct-
Fired with
Option
AG31; see
page 30.)
P/N 174849, Maxitrol
TD92-0509, remotely
located Temperature
Selector used in
Options AG39 &
AG41
Other Replacement Maxitrol Temperature
Selectors (selector only; no box) - match
selector with sensor:
#TD121A, P/N 194258
#TD121B, P/N 194259
#TD121F, P/N 194260
(changed from 4x4 box to 2x4
box effective 5/89)
Amplier, Maxitrol A1010U, P/N 260863,
in Replacement Kit P/N 262320
Kit P/N 262321 replaces
A1010F Amplier, P/N
48037, used in Maxitrol
21H (Option AG8)
Systems and A1011F
Amplier, P/N 48038,
used in Maxitrol 31H
(Option AG8) Systems
Amplier, Maxitrol AD1010U, P/N
260864, in Replacement Kit P/N 262321