Greenheck Fan Grease Grabber H2O Auto-Cleaning Hood GGH20 - Manual (Page 19)

19 Model GGH2O
®
Initial System Start-Up
1. Check electrical power (see wiring diagram)
• Correct supply voltage
• Proper connections to fire
suppression system
2. Check to make sure the
disconnect switch on the
electrical control cabinet is
switched to the “ON” position.
3. Prime the recirculation pump. Remove the plug on
top of pump and use a funnel to add water to the
pump. This only needs to be done one time prior to
initial start-up.
4. Add detergent to the detergent tank in the cabinet.
5. Clean the control cabinet of any debris that may
have entered the cabinet during installation.
6. Close the cabinet doors and press the Fan On/Off
button.
7. Check the exhaust and supply air volumes.
8. Press the Fan On/Off button to turn the fans off.
9. Press the Clean Hood button.
When the hood is filling, check to ensure water is not
leaking through the edges of the access doors. If so,
the inlet water pressure is too high. Slowly close ball
valve located before the inlet solenoid on the hood top
until no water leaks pasT the access doors.
After the hood fills with water and starts washing the
primary filters, open water valve slowly until water
mist is felt above equipment. Then slowly close valve
until water mist is no longer felt above equipment.
Once the valve is set it will not need to be moved
again.
Verify the Grease Grabber H
2
O sequence of operation
(see the diagram of wash sequence on page 20)
during the detergent pump cycle.
Daily Operation of the GGH2O Hood
Pressing the FAN ON/OFF button will start/stop the
exhaust and supply fans if interlocked.
Pressing the HOOD LIGHTS button will turn on/off the
hood lights.
Initiating the wash cycle:
The Grease Grabber H
2
O has an automatic timer
that can be set to control the wash schedule and
automatically start the cycle. See Timer Programming
on page 18.
To initiate the wash cycle manually, press the CLEAN
HOOD button on the keypad. If you press this button
while the fans are running, the system will stop the
fans and then start the wash cycle. When the wash is
completed, the system will automatically reset itself.
If the fans are controlled by a building management
system (BMS), the steps above still apply unless a
special program is requested to bypass having to
initiate the wash cycle by pushing the FAN ON/OFF
and CLEAN HOOD buttons.
Refer to the Grease Grabber™ H
2
O Hood checklist
on page 27 for detailed instructions on start-up
operations.
Interior of Cabinet
A. Recirculating pump
B. Detergent tank
C. Water valve to adjust front primary filter nozzles
D. Pump plug for priming
E. Detergent pump
A
B
C
D
E