S8600, S8610, S8660, S8670 INTERMITTENT PILOT MODULE
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2007 Honeywell International Inc.
69-0463—01 J.I. Rev. 12-07
EXHIBIT B
PROCEDURE FOR INSTALLING AUTOMATIC INTERMITTENT PILOT SYSTEMS
Prior to beginning this procedure, a preliminary
examination of the appliance and the automatic
intermittent pilot system should be made to determine
that the automatic intermittent pilot system can be
properly applied to the appliance.
This procedure is intended as a guide to aid in safely
installing a listed automatic intermittent pilot system on
an existing listed appliance equipped with an
atmospheric gas burner(s) and not of the direct vent type.
This procedure is based on the assumption that the
history of the specific installation has been one of safe
and satisfactory operation.
This procedure is predicated on central furnace and
boiler installations, and it should be recognized that
generalized procedures cannot anticipate all situations.
Accordingly, in some cases, deviation from this
procedure may be necessary to determine safe operation
of the equipment.
The following steps should be followed in making the
modifications:
1. Perform a safety inspection of the existing
appliance installation. See Exhibit A for a
recommended procedure for such a safety
inspection.
2. Shut off all gas and electricity to the appliance. To
shut off gas, use the shutoff valve in the supply line
to the appliance. Do not use the shutoff valve that
is provided as part of a combination control.
3. Install the automatic intermittent pilot system in
strict accordance with the manufacturer’s
installation instructions.
4. Turn on all gas and electricity to the appliance.
5. Determine that the appliance transformer has
adequate capacity by following the steps outlined
below:
a. Compute the approximate current draw by
adding the current draw of the automatic
intermittent pilot system to (1) the current draw
of the associated valving, and (2) the current
draw of any relays or other devices operated
by the transformer.
b. Multiply the total current draw as computed
above by 24V to determine the total VA
(volt-ampere) required.
c. The total VA (volt-ampere) required should be
equal to or less than the VA rating of the
transformer.
d. If the total VA (volt-ampere) required is greater
than the VA rating of the transformer, the
transformer must be replaced with a Class 2
transformer of adequate rating.
6. Check the heat anticipator in the comfort
thermostat to determine if it is properly adjusted to
the current draw of the control system. Follow the
thermostat manufacturer’s instructions.
7. Make certain wiring connections are tight and wires
are positioned and secured so they will not be able
to contact high temperature locations.
8. Conduct a Gas Leakage Test of the appliance
piping and control system downstream of the
shutoff valve in the supply line to the appliance.
9. Adjust the thermostat to its highest temperature
setting, and test manifold pressure and adjust the
pressure regulator to match original input as
required (refer to Exhibit A, Step 9b).
a. Visually determine that main burner is burning
properly; i.e., no floating, lifting, or flashback.
Adjust the primary air shutters as required.
10. If the appliance is equipped with high and low
flame control or flame modulation, check for proper
main burner operation at both high and low flame.
11. Determine that the pilot is igniting and burning
properly and that main burner ignition is
satisfactory by interrupting and re-establishing the
electrical supply to the appliance in any convenient
manner. Make this determination with the
appliance burner both cold and hot. Perform this
step as many times as is necessary to satisfy
yourself that the automatic intermittent pilot system
is operating properly.
12. Test the pilot safety device (1) to determine if it is
operating properly, and (2) for turndown
characteristics according to the manufacturer’s
installation instructions. No adjustment should be
made other than those recommended by the
system manufacturer.
13. Sequence the appliance through at least three
operating cycles.
14. Applicable only to furnaces. Check both the limit
controller and the fan controller for proper
operation. Limit control operation can be checked
by blocking the circulating air inlet or temporarily
disconnecting the electrical supply to the blower
motor and determining that the limit controller acts
to shut off the main burner gas.
15. Applicable only to boilers:
a. Determine that the circulating water pumps are
in operating condition.
b. Test low water cutoffs, automatic feed water
controls, pressure and temperature limit
controllers and relief valves in accordance with
the manufacturer’s recommendations to
determine they are in operating condition.
16. Add the labels (see 1.6.1-n and -o) on the
appliance.
EXHIBIT B OF ANSI STANDARD Z21.71 FOR AUTOMATIC INTERMITTENT PILOT IGNITION SYSTEMS FOR
FIELD INSTALLATION
69-0463-1.fm Page 20 Wednesday, December 19, 2007 1:22 PM
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