White Rodgers 36J27-554 User manual

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
Specications ............................................. 1
Mounng Posions ......................................... 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 – simplies conversion

2
MOUNTING POSITIONS
UPRIGHT, OR 0° TO 90° FROM UPRIGHT
3.000 MAX. SWING RADIUS
Swing Radius
Fig. 3 – Dimensions
Length .................................. 4.75"
Width ................................... 2.38"
Height .................................. 4.58"
Swing Radius ........................ 3.00"
Upright (inlet left)
90° from Upright (inlet le)
Vercal (inlet boom)
Vercal (inlet top) 90° from Upright (inlet boom)
Upright
(facing le)
Vertical (inlet bottom) Vertical (inlet top)
Fig. 2 – Valve Mounting

3
CAUTION
!
Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring can
cause equipment damage, property damage, and/or personal injury.
This control is not intended for use in locations where it may come in direct contact with water.
Suitable protection must be provided to shield the control from exposure to water (dripping,
spraying, rain, etc.).
PRECAUTIONSMOUNTING POSITIONS
1. Failure to turn o electric or main gas supply
to heating system could cause personal
injury and/or property damage by shock,
gas suocation, re, and/or explosion.
2. Do not use this control on circuits exceeding
specied voltage. Higher voltage will dam-
age the control and may cause shock or re
hazard.
3. NEVER USE FLAME OR ANY KIND OF SPARK
TO CHECK FOR GAS LEAKS–COULD CAUSE
FIRE AND/OR EXPLOSION.
4. Do not use a control set for natural gas with
LP gas, or a control set for LP gas with natural
gas. Personal injury and/or property dam-
age, gas suocation, re, and/or explosion
may result.
If you do not follow these instructions exactly, a re or explosion
may result, causing property damage, personal injury or loss of life.
5. Do not use a gas valve which appears to
be damaged. A damaged valve may cause
personal injury and/or property damage
due to shock, gas suocation, re, and/or
explosion. Contact supplier to replace any
valve that appears to have been damaged.
6. Do not use a gas valve which appears to
be damaged. A damaged valve may cause
personal injury and/or property damage
due to shock, gas suocation, re and/or
explosion. Contact supplier to replace any
valve that appears to have been damaged.
7. Do not use a gas valve that has been in
direct contact with water. Water entering
gas valve may result in concealed internal
damage to gas valve. Personal injury and/
or property damage, gas suocation, re
and/or explosion may result.
WARNING
!
DO NOT BEGIN INSTALLATION UNTIL YOU READ THE FOLLOWING
PRECAUTIONS.

4
INSTALLATION
1. Turn o electrical power to the system at the
fuse box or circuit breaker. Also turn o the
main gas supply.
2. If replacing an existing valve, disconnect all
plumbing and electrical connections from the
old control.
3. The control may be installed upright, + or
– 90˚ from upright, or vertical (refer to g. 2).
The arrow on the valve indicates the direction
of inlet gas ow.
Piped Gas
Supply
Piped Gas
Supply
Tubing Gas
Supply
NOTE: ALWAYS INCLUDE A
DRIP LEG IN PIPING
Figure 2. Typical gas valve piping
NOTE: A MANUAL SHUTOFF VALV E
MUST BE INSTALLED WITHIN
6 FEET OF THE EQUIPMENT
Horizontal
Drop
3in.
minimum
Gas Valve
Gas Valve
Riser
3in.
minimum
Drop
Horizontal
Riser
Gas Valve
3in.
minimum
NOTE
All piping must comply with local codes,
ordinances, and/or national fuel gas codes.
4. You should use new pipe that is properly
chamfered, reamed, and free of burrs and
chips. If you are using old pipe, be sure it is
clean and free of rust, scale, burrs, chips, and
old pipe joint compound.
5. Apply pipe joint compound (pipe dope) that
is approved for all gases, only to the male
threads of the pipe joints. DO NOT apply
compound to the rst two threads (see gure
4 for typical piping connections).
6. If you are using a vise or open-end wrench to
hold the valve while installing piping, do not
tighten excessively, as this may damage the
valve. (Torque: 375 in-lb maximum.) Do not
cross-thread during installation as this may
damage the valve.
7. See SYSTEM WIRING when making electrical
connections. After all gas and electrical connec-
tions are completed, turn gas on and check for
gas leaks with leak detection solution or soap
suds. Bubbles forming indicate a leak. SHUT
OFF GAS AND FIX ALL LEAKS IMMEDIATELY.
SYSTEM WIRING
Refer to and follow the appliance manufacturer's
wiring diagram. Refer to figure 5 for terminal
identication.
NOTE
All wiring should be installed according to local
and national electrical codes and ordinances.
Always check that the electrical power supply used
agrees with the voltage and frequency shown on
the gas control.
Fig. 4 – Typical Gas Valve Piping

5
The gas valve outlet pressure was pre-adjusted for both Nat. and LP at the factory, but ne adjustment
is possible by removing the access plug and turning the ne-adjustment screw with a 1/8" at blade
screwdriver. Adjustment must only be done while monitoring outlet pressure with a suitable manometer
properly attached to the outlet pressure tap. The outlet pressure tap must be leak checked after reseal-
ing (refer to Notes and Fig. 6 below).
Fig. 6 – 36J27 Modulating Gas Valve
Fig. 5 – 36J27 Valve Features
OUTLET
PRESSURE
TAP POST
VALVE OUTLET
RE
GULATOR
VENT
ELECTRICAL
5 PIN CONNECTOR
PIN 1
LOCATION
INLET
PRESSURE
TAP POST
VALVE INLET
Electrical 5 PIN Connector Pin Out
PIN 5 - TH - Main Valve 24 VAC (top pin, with the cover pointing up)
PIN 4 - TR - Ground
PIN 3 - TX - Communication to IFC
PIN 2 - RX - Communication to Stepper
PIN 1 - TH - Board 24VAC (bottom pin, with the cover pointing up)
Notes:
1. The maximum outlet pressure adjustment using
the ne adjustment screw is approximately
±15% from the original factory setting.
2. The ne adjustment screw has 16 detents and
can be rotated innitely 360° in either direc-
tion. However, at some point in the rotation,
the outlet pressure will switch from +15% to
-15% or vice versa, depending on the direction
of rotation.
3. The ne adjustment screw aects the entire
modulation range. Therefore, once adjustment
is made, the valve outlet pressure must be
checked at both the minimum and maximum
extremes of the modulation range. (Refer to
the appliance manufacturer’s instructions.)
.093 SOCKET HEAD
SCREW OUTLET
PRESSURE TAP
(SOME MODELS)
1/8 - NPT OUTLET
PRESSURE TAP
(SOME MODELS)
ON/OFF SWITCH
ACCESS PLUG - (PRESSURE
FINE ADJUSTMENT SCREW
IS LOCATED BENEATH PLUG)
TURN SCREW
TO INCREASE /
DECREASE
OUTLET
PRESSURE
INSTALLATION
ADJUSTMENT

6
A. This appliance does not have a pilot. It is equipped
with an ignition device which automatically lights
the burner. Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around the appli-
ance area for gas. Be sure to smell next to the oor
because some gas is heavier than air and will settle
on the oor.
FOR YOUR SAFETY
“WHAT TO DO IF YOU SMELL GAS”
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
1. Set the thermostat to lowest setting.
2. Turn o all electric power to the appliance if service
is to be performed.
3. Remove control access panel.
4. Push gas control switch to “OFF.” Do not force.
5. Replace control access panel.
• If you cannot reach your gas supplier, call the
re department.
C. Use only your hand to move the gas control
switch. Never use tools. If the switch will
not move by hand, don’t try to repair it, call a
qualied service technician. Force or attempted
repair may result in a re or explosion.
D. Do not use this appliance if any part has been
under water. Immediately call a qualied service
technician to inspect the appliance and to
replace any part of the control system and any
gas control which has been under water.
CONTROL LABEL
LIGHTING INSTRUCTIONS
If you do not follow these instructions exactly, a re or explosion
may result, causing property damage, personal injury or loss of life.
WARNING
!
FOR YOUR SAFETY READ BEFORE OPERATING
TO TURN OFF GAS TO APPLIANCE
1. STOP! Read the safety information above on
this label.
2. Set the thermostat to lowest setting.
3. Turn o all electric power to the appliance.
4. HSI MODELS: This appliance is equipped with
an ignition device which automatically lights the
burner. Do not try to light the burner by hand.
5. PROVEN/INTERMITTENT PILOT MODELS:
This appliance is equipped with an ignition
device which automatically lights the pilot. Do
not try to light the burner by hand.
6. Remove control access panel.
7. Wait ve (5) minutes to clear out any gas. If you
then smell gas, STOP! Follow “B” in the safety
information above on this label. If you don’t
smell gas, go to the next step.
8. Push gas control switch to “ON.”
NOTE: Do not force.
9. Replace control access panel.
10. Turn on all electric power to the appliance.
11. Set thermostat to desired setting.
12. If the appliance will not operate, follow the
instructions “To Turn O Gas To Appliance” and
call your service technician or gas supplier.
OPERATING INSTRUCTIONS

7
NOTES

White-Rodgers is a business
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
www.white-rodgers.com
www.emersonclimate.com

White-Rodgers est une entreprise
d’Emerson Electric Co.
Le logo d’Emerson est une marque
de commerce et une marque de
service d’Emerson Electric Co.
www.white-rodgers.com
www.emersonclimate.com

7
REMARQUES