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The 36J27 combination gas valve is designed for
direct spark ignition (DSI) and hot surface ignition
(HSI) system applications. This control is equipped
with redundant and main solenoid valves that control
gas ow to the main burners, a pressure regulator
and a two-position on/o switch for regulation
and electrical shut-o of the solenoid valves. Upon
signal from an integrated furnace control, the valve
modulates outlet pressure.
Fig. 1 – 36J27 Modulating Gas Valve
CONTROL LABE
L
36J27-554
DSI and HSI Modulating Combination Gas Valve
INSTALLATION INSTRUCTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
SPECIFICATIONS
www.white-rodgers.com
www.emersonclimate.com
PART NO. 37-7004D
Replaces 37-7004C
1345
Pressure Regulator Adjustment Range ( inches W.C.)
Pipe Sizes
CSA Std. Gas
.64 Sp. Gr.
(1000 BTU/CU. FT.)
LP Gas
1.53 Sp. Gr.
(2500 BTU/CU. FT.)
Adjustment
Range
(NAT., IN. W.C.)
Adjustment
Range
(LP., IN. W.C.)
1/2” x 1/2” NPT
20,000 – 210,000
BTU/HR
32,600 – 340,000
BTU/HR
0.40 – 4.0 1.3 – 11.5
For L.P. Gas Use Conversion Kit F92-1021
1.0" Pressure Drop Capacity
Pipe Sizes (NPT)
CSA Std. Gas
.64 Sp. Gr.
(1000 BTU/CU. FT.)
LP Gas
1.53 Sp. Gr.
(2500 BTU/CU. FT.)
1/2” x 1/2” (Vertical or Upright) 140,000 BTU/HR 226,800 BTU/HR
CONTENTS
Description ................................................ 1
Specications ............................................. 1
Mounng Posions .........................................2
Precautions ................................................ 3
Installation ................. ................................ 4
System Wiring
Adjustment ................................................ 5
Pressure Regulator Adjustment
Lighting Instructions.................................... 6
Ambient Temperature .... -40° to 175°F
Pressure Rating .............. 14” W.C. (1⁄2 PSI) max.
Voltage ........................... 24 VAC
Frequency....................... 60 Hz
Total Current .................. 1.0A
Pulse Width Modulation (PWM):
Low level: 0 – .03 volts
High level: 3 – 5.5 volts
Modulation ..................... 35% – 100% opening
with 1% increments
Regulator Vent Outlet .... accepts 5/16" I.D. hose
Rotary dip switch for pressure regulation adjustment
Precalibrated for LP – simplies conversion