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Y8610U INTERMITTENT PILOT RETROFIT KIT
68-0291—03 8
5. Applicable only to warm air heating appliances. Inspect
heat exchangers for cracks, openings or excessive cor-
rosion.
6. Applicable only to boilers. Inspect for evidence of water
or combustion product leaks.
7. Insofar as is practical, close all building doors and win-
dows and all doors between the space in which the appli-
ance is located and other spaces of the building. Turn on
clothes dryers. Turn on any exhaust fans, such as range
hoods and bathroom exhausts, so they will operate at
maximum speed. Do not operate a summer exhaust fan.
Close fireplace dampers. If, after completing steps 7
through 12, it is believed sufficient combustion air is not
available, refer to 1.3.4 of the National Fuel Gas Code
(Z223.1) for guidance.
8. Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so appliance
will operate continuously.
9. Determine the following:
a. Determine that the pilot is burning properly and that
main burner ignition is satisfactory by interrupting
and re-establishing the electrical supply to the appli-
ance in any convenient manner.
b. Determine manifold pressure in order to match input
after the new control is installed.
10. Perform the following tests:
a. Visually determine that main burner gas is burning
properly; i.e., no floating, lifting or flashback. Adjust
the primary air shutter(s) as required.
b. If appliance is equipped with high and low flame con-
trol or flame modulation, check for proper main
burner operation at low flame.
11. Test for spillage at the draft hood relief opening after 5
minutes of main burner operation. Use a draft gauge, the
flame of a match or candle, or smoke from a cigarette,
cigar or pipe.
12. Return doors, windows, exhaust fans, fireplace dampers
and all other fuel-burning appliances to their previous
conditions of use.
13. Applicable only to warm air heating appliances. Check
both limit controller and fan controller for proper opera-
tion. Limit controller operation can be checked by tempo-
rarily disconnecting the electrical supply to the blower
motor and determining that the limit control acts to shut
off the main burner gas.
14. Applicable only to boilers:
a. Determine that the circulating water pumps are in
operating condition.
b. Test low water cutoffs, automatic feed controls, pres-
sure and temperature limit controls and relief valves
in accordance with the manufacturer’s recommenda-
tions and instructions to determine they are in oper-
ating condition.
Shut Down Appliance
1. Turn off the gas supply at the appliance service valve.
Do not use the gas control knob.
2. Turn off the electricity at the service entrance.
Check Appliance Wiring
The existing standing pilot gas control wires are used to control
Y8610U Retrofit Kit. Carefully identify and tag the wires before
disconnecting. See Fig. 6 for the most common types of
terminal arrangements.
Fig. 6. Wiring connections on standing pilot gas controls.
Remove Standing Pilot Gas Control
1. If the gas control has a common terminal(s), remove the
wires connected to the common terminal(s) and splice
together with one of the wire nuts provided.
2. Label and remove the remaining wires.
WARNING
FIRE OR EXPLOSION HAZARDCAN CAUSE
PROPERTY DAMAGE, SEVERE INJURY, OR
DEATH.
Do not bend the pilot gas tubing at the gas control or at
the pilot burner to prevent gas leakage at the
connection.
3. Disconnect the pilot tubing at the gas control. Cut off and
discard the compression fitting. Do not disturb the com-
pression fitting or pilot tubing at the pilot burner.
4. Disconnect the thermocouple lead at the gas control.
5. Disconnect the gas piping at the gas control.
6. Discard the gas control.
TO
TRANSFORMER
TO
THERMOSTAT
TO
TRANSFORMER
TO
THERMOSTAT
TO
TRANSFORMER
TO
THERMOSTAT
COMMON
COMMON
M6858