HBG EVAPORATOR
OPERATOR’S MANUAL
11
HBG • 8.913-990.0-K
OPERATING INSTRUCTIONS
NOTE: If the waste stream being evaporated does
not con tain between 500-5000 mg/L of oil and you
are us ing a mild steel tank, it is ex treme ly im por tant
to add 1 quart of 20 to 40 weight chemical oil to the
HBG-15 tank (2 quarts to the HBG-30 tank) each time
main te nance is per formed. This amount of oil will
equal approx. 1/8" of oil on the top surface of the
HBG liq uid. This ad di tive will im pede corrosion. If
this op er a tion is not per formed, the tank warranty
will be void.
1. Supply the HBG-15/30 with 120 volts on a 15 amp
ser vice.
NOTE:
All supply voltage wires must be
wired into the elec tri cal box and connected to their
re spec tive ter mi nal bar strip positions or ground-
ing lugs. Refer to wir ing diagram supplied with the
machine.
Important to check wire polarity.
2. Fill the evap o ra tor tank with waste wa ter to the bot-
tom of the top safe ty fl oat.
WARNING:
If the HBG
liq uid level is too high, the high level safety fl oat will
not al low the machine to op er ate.
3. Turn the fan switch to the ON position.
NOTE:
The fan switch must be on for any other
com po nents to operate.
4. If equipped with the optional auto fi ll air diaphragm
pump, con fi rm the wastewater inlet line is con nect ed
to the inlet fi lter garden hose swivel connector.
5. Confi rm that the external normally open fl oat with the
auto fi ll option in the wastewater holding tank is in the
up po si tion. If the fl oat is in the down position when
the pump switch is in the auto position, the pump
will not op er ate. If the pump switch is in the manual
po si tion the external fl oat will be by passed.
6. Push the pump switch to the “auto” position (auto fi ll
option). The pump will turn on, fi lling the tank with
wastewater. The top fl oat inside the tank turns the
pump “off.”
7. Turn gas control valve knob to “ON”.
8. Push the burner switch to the “ON” position. If the
low water fl oat is in the up position the burner be gins
the ignition process.
NOTE
: The low water fl oat is con trolled by a timer
to alleviate the burn er from being turned on and off
due to boiling water agitation. When the low water
fl oat is moved from the down to the up position, the
tim er will initiate timing for 10 seconds before the
burn er is initiated.
The ignition process is as follows:
A.
Trial for pilot ignition:
The fl ame module checks
that a safe start fl ame simulating con di tion ex-
ists. A fan prov ing switch proves the burner fan is
op er at ing. If it is not operating, the burn er will not
ig nite.
B.
Pilot ignition:
The fl ame mod ule opens the gas
pilot valve. Si mul ta neous ly, the electronic spark
gen er a tor ignites the pilot. Once the pilot has
ig ni tion, the electronic spark gen er a tor turns off.
The pilot ignitor/sensor rod proves there is fl ame at
the pilot. If there is no fl ame at the pilot the burn er
goes into a safety lockout period.
C.
Main fl ame ignition:
Once the burner pilot sen-
sor is proven the main gas solenoid valve opens
al low ing full burner operation. If the fl ame goes
out, the pilot electronic spark gen er a tor attempts
to re ig nite the pilot.
NOTE:
If the burner does not ignite, confi rm the
gas so le noid valve on/off switch is in the “ON” po-
si tion and that the manual reset high tem per a ture
switch has not tripped due to low water or high
sol ids build up inside the HBG tank. The re set
but ton is on the back of the control box.
9. Remove the plug at the gas solenoid valve manifold
and in stall a hosebarb fi tting. Attach a 0-10" W.C.
ma nom e ter. With the burner operating, adjust the
reg u la tor valve to the proper setting ac cord ing to
the chart below.
10. When the predetermined batch cycle count has been
reached and after maintenance has been per formed,
restart the machine by push ing the re set button on
the batch cycle counter la beled F1/RST.
11. To operate the optional oil skimmer, turn the burner
to the “OFF” position al low ing oil to fl oat to the top
of the tank. Lift the tank lid and attach the oil skim-
mer to the outer wall of the tank. Allow the stain less
belt to pick up all the fl oating oil in the wastewater
tank. Place a buck et under the down spout of the oil
skim mer to col lect the oil.
The evaporator will operate con tin u ous ly until 1) the
batch con trol ler hits its predetermined num ber of
batch cycles. 2) the wa ter gets too low in the waste-
wa ter hold ing tank (auto fi ll op tion). 3) the water lev el
in the waste wa ter tank causes the bottom fl oat to trip
off the burn er. Once the liquid lev el fl oat has ris en,
the burn er will au to mat i cal ly re start.
