White Rodgers 36E93-304 User manual

WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398 Printed in U.S.A. PART NO. 37-5291C
Replaces 37-5291B
9615
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.
The 36E93-304 combination gas valve is designed for
intermittent ignition system applications. The valve is
equipped with a redundant solenoid valve that controls
gas flow to the pilot and main burners, a main valve that
controlsgasflowtothemainburner,apressureregulator
tomaintainaconstantoutletpressure,andatwo-position
gas cock knob for manual gas shut-off.
DESCRIPTION
WHITE-RODGERS 36E93-304
Delay-Opening Combination Gas Valve
INSTALLATION INSTRUCTIONS
SPECIFICATIONS
Type of Gas: Natural gas
LP gas (use conversion kit)
Pressure Regulator Setting:
Nat. Gas – 2.5 to 5.0” W.C.
LP Gas – 7.0 to 12.0” W.C.
Ambient Temperature:
-40°to 175°F
Pressure Rating: 14” W.C. (1⁄2PSI) max.
Voltage: 24 VAC
Frequency: 50/60 Hz
PIPE SIZES/CAPACITIES
Pipe Sizes Available
(inches)
Capacity (BTU/hr) at
1” pressure drop across valve
3
⁄ 8 ” x
3
⁄ 8 ” NPT any combination
3
⁄ 8 ” x
3
⁄ 4 ” NPT straight through
1
⁄ 2 ” x
3
⁄ 8 ” NPT any combination
1
⁄ 2 ” x
1
⁄ 2 ” NPT any combination
1
⁄ 2 ” x
3
⁄ 4 ” NPT straight through
75,000
75,000
100,000
140,000
140,000
AGA Std. Nat. Gas
(1,000 BTU/cu. ft.) 121,500
121,500
162,000
226,800
226,800
LP Gas
(2,500 BTU/cu. ft.)
Figure 1. Gas valve mounting positions
INLET
PRESS
TAP
INLET
PRESS
TAP
PILOT ADJ
360°
MOUNTING POSITIONS:
Upright, or 0°to 90°from upright
UPRIGHT LEFT OR RIGHT INLET BOSS
UP OR DOWN
Operator: Save these instructions for future use!
CONTENTS
Description......................................................... 1
Specifications..................................................... 1
Precautions........................................................ 2
Installation.......................................................... 3
Pilot Gas Connection
System Wiring
Adjustment......................................................... 5
Manual Valve Knob
Pilot Gas Adjustment
Pressure Regulator Adjustment

2
DO NOT BEGIN INSTALLATION UNTIL YOU READ
THE FOLLOWING PRECAUTIONS.
PRECAUTIONS
1. Failureto turnoffelectric ormaingas supply
to heating system could cause personal in-
jury and/or property damage by shock, gas
suffocation, fire, and/or explosion.
2. Donotusethiscontroloncircuitsexceeding
specified voltage. Higher voltage will dam-
age the control and may cause shock or fire
hazard.
3. NEVERUSEFLAMEORANYKINDOFSPARK
TOCHECKFORGASLEAKS–COULDCAUSE
FIRE AND/OR EXPLOSION.
4. DO NOT USE WIRE JUMPER on pilot sys-
tems,suchasstandingpilot,provenpilot,or
spark-to-pilot ignition–a fire and/or explo-
sion may result.
5. 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
damage, gas suffocation, fire, and/or explo-
sion may result.
1. Do not short out terminals on gas valve or
primary control to test. Short or incorrect
wiring can cause equipment damage, prop-
erty damage, and/or personal injury.
2. This control is not intended for use in loca-
tions where it may come in direct contact
with water. Suitable protection must be pro-
vided to shield the control from exposure to
water (dripping, spraying, rain, etc.).
WARNING
!If you do not follow these instructions exactly, a fire or explosion may
result, causing property damage, personal injury or loss of life.
CAUTION
!

3
NOTE
INSTALLATION
1. Turnoffelectricalpowertothesystematthefusebox
or circuit breaker. Also turn off the main gas supply.
2. Ifreplacinganexistingvalve,disconnectallplumbing
and electrical connections from the old control.
3. The control may be installed in any position, except
upsidedown.Thearrowonthebottomplateindicates
the direction of gas flow through the valve.
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) or teflon tape
that is approved for all gases, only to the male
threads of the pipe joints. DO NOT apply com-
poundorteflon tapetothefirsttwothreads(seefig. 3
for typical piping connections).
6. Ifyouareusingaviseoropen-endwrenchtoholdthe
valve while installing piping, do not tighten exces-
sively, as this may damage the valve.
7. See SYSTEM WIRING when making electrical con-
nections. After all gas and electrical connections are
completed, turn gas on and check for gas leaks with
leakdetectionsolutionorsoapsuds.Bubblesforming
indicate a leak. SHUT OFF GAS AND FIX ALL
LEAKS IMMEDIATELY.
PILOT GAS CONNECTION
Thesevalvesareshippedwiththepilotoutletplugged.For
installations requiring pilot gas, remove the plug and use
the fitting packed separately with the control.
Install the fitting into the pilot gas tapping, turning until
finger-tight (see fig. 2). Insert clean, deburred tubing all
the way through the fitting. Hold the tubing securely in
place and slowly tighten the fitting until you feel a slight
“give”. Then tighten the fitting an additional 11⁄2turns.
SeeADJUSTMENTsection(page5)andfig.6forpilotset
up.
PILOT
OUT
PRESS
TAP
Pilot Gas
Outlet
Figure 2
Main Gas
Outlet
Pressure
Tap
Regulator
Vent
Piped Gas
Supply Piped Gas Supply Tubing Gas Supply
NOTE: ALWAYS INCLUDE A
DRIP LEG IN PIPING
Figure 3. Typical gas valve piping
Horizontal
Drop
Gas Valve
3 in.
minimum
Gas Valve
Riser
3 in.
minimum
Drop
Horizontal
Riser
Gas Valve
3 in.
minimum
Allpipingmustcomply with local codes, ordinances,
and/or national fuel gas codes.

4
NOTE
INSTALLATION(cont’d)
SYSTEM WIRING
REFER TO AND FOLLOW THE APPLIANCE
MANUFACTURER’S WIRING DIAGRAM. REFER TO
FIG. 4 FOR TERMINAL IDENTIFICATION.
Allwiringshouldbeinstalledinaccordancewith localand
national electrical codes and ordinances.
Alwayscheckthattheelectricalpowersupplyusedagrees
withthe voltage andfrequency shown onthegas control.
PILOT ADJ
Figure 4. Gas valve wiring diagram
5
1
4
2
3
Rectifier
Bridge
Main
Redundant
Pressure
Switch
3
2
4
1
5

5
MANUAL VALVE KNOB
The manual valve knob is a two-position (ON-OFF) type.
To turn manual valve on, rotate knob clockwise or coun-
terclockwise to line up the word ON on the knob with the
indicatoron thecovercasting (seefig.5). Toturnmanual
valve off, rotate knob clockwise or counterclockwise to
lineupthewordOFFontheknobwiththeindicatoronthe
cover casting.
PILOT ADJ
Figure 5. Manual gas valve knob
Indicator Manual valve knob
shown in OFF position
ADJUSTMENT
Regulator
Cover Screw
Regulator
Spring
Plastic
Adjust Screw
Figure 6
Pilot
Cover Screw
Gasket
Pilot
Adjust Screw
PILOT GAS ADJUSTMENT
These controls are factory preset to provide proper pilot
gas flow for most applications. If additional adjustment is
necessary, follow these steps.
1. Turn off all electrical power to the system before
making any adjustments.
2. Remove the pilot adjust cover screw and gasket to
expose the adjusting screw (see fig. 6). Turn the
adjustingscrewclockwiseto reduce pilot flame, or
counterclockwise to increase pilot flame.
3. Replace the gasket and pilot adjust cover screw and
tighten securely.
4. Restore power to the system.
PRESSURE REGULATOR
ADJUSTMENT
These controls are shipped from the factory with the
regulatorset for3.5”W.C. (natural gas,full flow). Consult
the appliance rating plate to ensure burner manifold
pressureshouldbe3.5”W.C.Ifanotheroutlet pressureis
required, follow these steps.
Ifavalvehasbeenfactory-adjustedforthe2.5to5inches
W.C.range,itcannotbefield-adjustedoutsidethatrange.
Thisisalsotrueforvalvesadjustedtothe7.5to12inches
W.C. range for LP gas.
1. Turn off all electrical power to the system.
2. Attach a manometer to the outlet pressure tap of the
valve.
3. Turn on system power and energize valve.
4. Remove regulator cover screw and turn regulator
adjust screw clockwise to increase pressure, or
counterclockwisetodecreasepressure(seefig. 6).
Always adjust regulator to provide the correct pres-
sure according to the original equipment
manufacturer’s specifications listed on the appliance
rating plate.
5. Replace regulator cover screw and tighten securely.

LIGHTING INSTRUCTIONS
A. This appliance is equipped with an intermittent ignition
device which automatically lights the appliance. Do not try
to light the pilot by hand.
B. BEFORE OPERATING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
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.
• If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to turn the gas control knob. Never
use tools. If the knob will not turn by hand, don’t try to
repair it, call a qualified service technician. Force or
attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
1. STOP! Read the safety information above on this label.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the pilot
by hand.
5. Remove control access panel.
6. Turn gas control knob clockwise to “OFF.”
7. Wait five (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. Turn gas control knob counterclockwise to “ON.”
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 Off Gas To Appliance” and call your service
technician or gas supplier.
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to
be performed.
3. Remove control access panel.
4. Turn gas control knob clockwise to “OFF.” Do not force.
5. Replace control access panel.
If you need more information about this product, you may write to us at::
WHITE-RODGERS DIVISION, Emerson Electric Co.
9797 Reavis Road
St. Louis, MO 63123-5398
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING
!
If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE