ACE BOILER INC.
Page
15
Maintenance Instruction
The following service is recommended for proper and safe use of this equipment monthly or more often.
1 Open relief valve(s) momentarily by lifting try lever to be sure valve(s) will open and are operational.
2 Check tank pressure gauge. Pressure of system should not exceed pressure rating on tank or relief
valve name plate.
3 Check steam pressure gauge to confirm steam supply is adequate. (Gauge will not show pressure
except while system is heating, as pressure connection down stream of automatic steam valve.)
Check tank thermometer, preferably when hot water demand is low, to verify that the steam valve is
functioning to control temperature of tank within desired limits.
NOTE:
Tank is supplied with temperature or pressure relief valve(s) which will open automatically
should the water temperature exceed 2100ºF or rated relief valve pressure.
4 Open drain valve at rear of tank for about ½ minute, and flush to drain to remove any mud or sludge
from circulation line and bottom of tank.
5 Oil pump motor with 6 to 10 drops of S.A.E. 30 non-detergent motor oil, in each of 2 oil cups on
motor.
6 Oil pump bearing housing with 1 or 2 teaspoons of oil of S.A.E. 30 motor oil as above, in pump baring
oil cup.
CAUTION:
Do not over-oil motor bearings, as this will result in rapid dust collection and
overheating of motor.
7 Clean pump motor air intake and exhaust slots with a soft brush or vacuum cleaner.
8 Inspect anodes on glass lined tanks. Replace anodes if 5/8” or less in diameter. Failure to maintain
anodes will void warranty. Keep all records of anode inspection and replacement for warranty
guarantee.
Yearly Maintenance
A thorough cleaning of interior of tank and exterior of tank coil surfaces should be performed as required,
or after the first year’s service, to establish a basis for future need of services.
TO CLEAN TANK, PROCEED AS FOLLOWS:
1 Shut off steam or boiler water supply to tank coil.
2 Shut off cold water supply to bottom of tank.
3 Shut off hot water supply valve at top of tank if one is used.
4 Turn off electric supply to circulating pump.
5 Open drain valve at bottom rear of tank and relieve pressure on tank.
6 Open relief valve on top of tank, or remove it by unscrewing valve, to allow air to enter tank so water
will drain freely, and drain tank fully.
7 Remove one manhole bolt and crab assembly, and loosen other bolt about ½”
8 With a block of wood about ½” long and a #2 hammer, hold the manhole cover and tap to break the
gasket loose, and dislodge cover from manhole ring. This cover may now be pushed into the tank
and remove to outside, by rotating the manhole cover after removing the crab from bolt, and using the
bolt for a handle to prevent dropping the cover within tank. The interior of tank may be viewed thru
the open manhole. If the tank is cement lined, any sludge, mud, or other deposits may be washed
out thru the drain, and lining scrubbed off with a coarse brush or wire brush. The copper tank coil
should be inspected for buildup of sediment or lime deposits on the tubes.
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