Unit installation

7
HONEYWELL IGNITION MODULE
S8600M Continuous Re-Try
FIGURE 3
AUTOMATIC FLUE DAMPER DEVICE
All units are equipped with an automatic flue damper that reduces
heat loss during the OFF cycles. The automatic flue damper
drive motor and circuit board are field replaceable parts and may
be obtained by contacting A. O. Smith Water Products Company,
Product Service Division, 5621 W. 115th Street, Alsip, IL 60803,
1-800-433-2545, for Canada contact A.O. Smith Enterprises LTD.,
P.O. Box, 310 - 768 Erie Street, Stratford, Ontario, Canada N5A
6T3, 519-271-5800.
Each automatic flue damper drive assembly is equipped with a
"NORMAL/SERVICE switch, fig. 4. This switch is mounted on the
drive unit circuit board and can be accessed by removing the
damper drive assembly cover. When the switch is placed in the
"SERVICE" position the automatic flue damper drive motor is
disconnected but the damper disc position switch remains in
circuit. If the damper disc, located inside the drafthood, is not
visibly in the vertical position it must be manually moved to the
vertical position and secured there. The damper disc must be
vertical to complete the damper disc safety interlock.
FIGURE 4
In the "SERVICE" position and with the damper disc vertical, the
water heater can be operated, tested or serviced in a normal,
safe manner. In the "SERVICE" position, the water heater remains
under control of the ECO and thermostat.
If the water heater runs satisfactorily with the switch in the
"SERVICE" position, then follow suggestions in the
Troubleshooting-Flue Damper Drive Unit section of this manual.
If the water heater does not run with the switch in the "SERVICE"
position, then follow the suggestions in the
Troubleshooting-
Ignition Module System and Operational Checklist sections of
this manual.
CIRCULATING PUMP
A circulating pump is used when a system requires a circulating
loop or there is a storage tank used in conjunction with the heater.
Refer to the piping diagrams at rear of manual for electrical
hookup information and install in accordance with the latest
version of the National Electric Code ANSI/NFPA No. 70. For
Canada refer to Canadian Code CSA C22.1.
Only all bronze circulators are used with commercial water
heaters.
Although circulators are oiled and operated by the manufacturer
some circulators must be oiled again before operating. Please
refer to manufacturer’s instructions.
DISHWASHING MACHINE REQUIREMENT
These appliances meet the National Sanitation Foundation
Standard for sanitary installations when used with the following
leg kits, Part No’s. 6570-0 and 6570-7.
All dishwashing machines meeting the National Sanitation
Foundation requirements are designed to operate with water
flow pressures between 15 and 25 psi (103Kpa and 173 Kpa).
Flow pressures above 25 psi (173Kpa), or below 15 psi (103
Kpa), will result in improperly sanitized dishes. Where pressures
are high, a water pressure reducing or flow regulating control
valve should be used in 180
0
F line to the dishwashing machine,
and should be adjusted to deliver water between these limits.
The National Sanitation Foundation also recommends circulation
of 180
0
F (82°C) water. Where this is done, the circulation should
be very gentle so that it does not cause any unnecessary
turbulence inside the water heater. The circulation should be just
enough to provide 180
0
F (82°C) water at the point of take-off to
the dishwashing machine. Adjust flow by means of the plug cock
in the circulating line.
INSTALLATION INSTRUCTIONS
REQUIRED ABILITY
INSTALLATION OR SERVICE OF THIS WATER HEATER
REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED
TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR
SUPPLY, VENTING, GAS SUPPLY AND ELECTRICAL WORK
ARE REQUIRED.
WARNING
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT
IN SERIOUS PERSONAL INJURY OR DEATH.
UNCRATING
The heater is shipped with a draft hood diverter already installed.
The wiring conduit runs from the thermostat to the damper drive
cover. Before turning unit on, check to make sure the wiring
conduit is securely plugged into damper drive.