Honeywell Q3452 Quick Start Manual

Two-rod Pilot Burner/Igniter-Sensor
The Q3452 Two-rod Pilot Burner/Igniter-Sensor pro-
vides pilot flame ignition and sensing for S8600A,B,C;
S8610A,B,C,U; S8620C; S8600J,K; and S86700J,K
Two-rod Ignition Modules. It consists of a pilot burner
and a spark rod/flame rod assembly.
The spark rod/flame rod assembly is field replace-
able, part no. 204470DB.
WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to follow
instructions can damage product or cause a hazardous
condition.
2. Check ratings given in instructions and on product
to make sure product is suitable for your application.
3. Make sure installer is a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out product operation.
WARNING
!
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Follow these warnings exactly:
1. Disconnect power supply before wiring to pre-
vent electrical shock or equipment damage.
2. To avoid dangerous accumulation of fuel gas,
turn off gas supply at appliance service valve
before starting installation and perform Gas
Leak Test after completion of installation.
3. Do not bend pilot tubing at the control or pilot
after compression nut has been tightened. Gas
leakage at the connection may result.
Follow appliance manufacturer instructions if available;
otherwise, use instructions provided below.
LOCATION
1. Position pilot burner/igniter-sensor for easy access
and observation. In replacement applications, replace pilot
burner/igniter-sensor with an identical unit and position
new pilot burner/igniter-sensor in the same location and
orientation as the original one.
2. Mount pilot burner/igniter-sensor on main burner.
Mounting surfaces other than the main burner may shift,
bend, or warp as furnace expands and contracts while
operating. See Fig. 1.
Application
Installation
G. S. • Rev. 7-93 • ©Honeywell Inc. 1993 • Form Number 69-0768
Fig. 1—Mount pilot burner/igniter-sensor on
main burner.
PILOT BURNER/IGNITER-SENSOR
MUST BE RIGIDLY POSITIONED
RELATIVE TO MAIN BURNER
Fig. 2—Location of pilot burner/igniter-sensor.
PILOT BURNER/
IGNITER-
SENSOR
JUST RIGHT
IGNITION FLAME
JUST MISSES
MAIN BURNER
3. Mount pilot burner/igniter-sensor so the pilot flame
remains properly positioned with respect to the main
burner flame. See Fig. 2.
4. Supply pilot flame with ample air free of combus-
tion products.
5. Do not impinge pilot flame on adjacent parts. Do
not impinge main burner flame on pilot burner/igniter-
sensor.
6. Do not expose pilot flame to falling scale, which
could impair main burner ignition.
7. Do not expose pilot burner/igniter-sensor to main
burner rollout while igniting or extinguishing.
8. Do not expose pilot flame to drafts that push or
pull pilot flame away from the igniter-sensor.
CONNECT PILOT GAS TUBING
1. Cut tubing to desired length and bend as necessary
for routing to pilot burner/igniter-sensor. Do not make
sharp bends or deform tubing. Do not bend tubing at control
after compression nut has been tightened because this can
result in gas leakage at connection.
Q3452
PILOT BURNER/
PILOT BURNER/
IGNITER-
IGNITER-
SENSOR
SENSOR
TOO HIGH
TOO LOW
IGNITION MAIN BURNER
FLAME WILL FLAME WILL
IMPINGE ON IMPINGE ON
MAIN BURNER IGNITION-
SENSOR
M3271
M3273