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HBG EVAPORATOR OPERATOR’S MANUAL
13
HBG • 8.913-990.0-K
HBG FUEL AND AIR SETTINGS
Natural Gas GPH Gas Orifi ce Inlet Gas Supply Pressure Man. Pressure Air Setting
HBG-15D 10 - 15 G (.261) 4.5 - 14 WCI 3 WCI Open Draft Wheel 6 Full Turns
HBG-30D 25 - 30 T (.468) 5.5 - 14 WCI 3 WCI Draft Open to 4
Liquid Propane GPH Gas Orifi ce Inlet Gas Supply Pressure Man. Pressure Air Setting
HBG-15D 10 - 15 #22 (.157) 11 - 14 WCI 5 WCI Open Draft Wheel 6 Full Turns
HBG-30D 25 - 30 Q - (.332) 5.5 - 14 WCI 5 WCI Draft Open to 8
SEMI ANNUAL MAINTENANCE
1. Check auto fi ll pump for proper pressure, fl ows and
electrical capacities.
2. Check auto fi ll fl oats for proper operation.
3. Oil the draft inducer motor bearings. Oil holes are
pro vid ed at front and rear faces of motor. CAUTION:
Not more than 3 drops of S.A.E. 20 oil should be
used.
4. Check tank and lids for corrosion.
5. Check burner for proper operation and gas
pres sure.
AUTO FILL OPERATING
CHARACTERISTICS
The auto fi ll option consists of two level control switches
which control the fi ll pump. The lower level switch turns
the pump on. As the wa ter level raises, the upper level
switch turns the pump off. The evaporator then evap o-
rates the water, which in turn lowers the water lev el past
the low er level switch, which turns the pump on and
starts the fi ll pro cess.
NOTE: To engage the auto fi ll feature, push the pump
switch to auto. This will allow the pump to be con trolled
by the auto fi ll fl oat level switches. Push ing the pump
switch to man u al will bypass the external N/O teth ered
fl oat in the waste wa ter holding tank.
AIR ASSISTED
DEFOAMER OPERATING
CHARACTERISTICS
The air assisted defoamer option consists of a metering
pump drawing up defoamer and a solenoid controlling the
air injecting the defoamer through a fan nozzle lo cat ed
in side the wastewater tank. Set the three position switch
to “auto” and de foam er will then be injected every time
the machine refi lls. If more defoamer is needed, turn
ad just ment screw, located under cover plate in front
of pump, clockwise to increase pump speed. Injecting
man u al ly is also avail able. NOTE: The air pres sure
need ed to op er ate the de foam er must not ex ceed 2 psi.
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