Operating Appliance - Kenmore K90-150 Owner's Manual

Refer to the appropriate diagrams in Section VII,
"Near Boiler Piping," for more information.
1. Close all zone service valves on the supply
and return piping. Open the feed valve and fill
boiler with water. Make sure air vent is open.
Hold relief valve open until water runs air free for
five seconds to rapidly bleed air from boiler, then
let the relief valve snap shut.
2. Open the zone service valve on the
pipe for the first zone. Open the purge valve
on the first zone. Feed water will fill the zone,
pushing air out the purge valve. Close the purge
valve when the water runs air free. Close the
zone service valve.
3. Repeat step 2 for all remaining zones.
4. Open all service valves. Any air remaining
trapped in the return lines between the service
valves and the boiler will be pushed towards the
air vent when the boiler is placed in operation.
5. Inspect piping system. Repair any leaks im-
mediately.
4. Open the expansion tank service valve and
the tank vent. Fill the tank to the proper level
and close the tank vent. Remove the handle
from the expansion tank service valve so the
homeowner doesn't accidentally close it.
5. Open all service valves. Any air remaining
trapped in the return lines between the service
valves and the boiler will be pushed towards the
expansion tank when the boiler is placed in op-
eration.
6. Inspect piping system. Repair any leaks im-
mediately.
OTE: DO NOT use stop leak compounds. Leaks in"_
readed connections in the aluminum boiler sections mus._t I
e repaired immediately. Aluminum threads will not seal I
emselves. J
(_ READ BEFORE OPERATING APPLIANCE ,,_
1. This appliance does not have a pilot. It is
equipped with an ignition device which automat-
ically lights the burner. Do NOT try to light this
burner by hand.
2. Before operating smell all around the appli-
ance area for gas. Be sure to smell next to the
floor because some gas is heavier than air and
will settle to the floor.
Refer to the appropriate diagrams in Section VII,
"Near Boiler Piping," for more information.
1. Close all zone service valves on the supply
and return piping and close the expansion tank
service valve. Drain expansion tank. Open the
feed valve and fill boiler with water. Hold relief
valve open until water runs air free for five sec-
onds to rapidly bleed air from boiler, then let the
relief valve snap shut.
2. Open the zone service valve on the
pipe for the first zone. Open the purge valve
on the first zone. Feed water will fill the zone,
pushing air out the purge valve. Close the purge
valve when the water runs air free. Close the
zone service valve.
3. Repeat step 2 for all remaining zones.
3. Use only your hand to turn the gas shut off
valve. Never use tools. If the valve will not turn
by hand, do not try to repair it, call a qualified
service technician. Force or attempted repair
may cause fire or explosion.
4. Do not use this appliance if any part has been
under water. Immediately call a qualified ser-
vice technician to inspect the appliance and to