Greenheck Fan 474754 Ventilation Hood User Manual

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Grease Grabber™ Power Play Kitchen Exhaust Pollution Control System

2. WASH: System goes through cycles to clean and

dry dirty ionizing-collecting cells

3. RESET: Returns the system to the NORMAL mode

if a WASH cycle is accidentally initiated

4. SLEEP: Waiting period after a WASH mode

Washing

Power Play’s PLC control is preprogrammed to

manually initiate and cycle through the wash, rinse,

dry and system standby steps, as described below.

To initiate a wash manually, with the system in the

NORMAL mode, depress the WASH push-button.

The WASH mode consists of 6 steps. FIGURE 6

describes the indicating light and system component

status while operating in the WASH mode. After the

WASH/FAN DRY cycle is completed, the system is

programmed to shut down and manual start next

morning. As indicated in FIGURE 6, there is a 5 minute

delay period, after wash initiation, before the wash

process begins. If the WASH cycle is accidentally

initiated, the operator may reset the system during

the 5 minute delay period, and the system will return

to NORMAL operation. If the system is reset after

the 5 minute delay period, the WASH cycle will be

accelerated and the system will return to the NORMAL

mode after the WASH cycle is complete.

During operation in the WASH mode, depressing

the EMERGENCY STOP button will immediately

shut down the system. The red light adjacent to

the EMERGENCY STOP button will illuminate until

the button is released. The system will continue to

operate in the WASH mode after the EMERGENCY

STOP button is released.

Reset Mode

On rare occasions, it may be necessary to reset

the system. This may be required if a WASH cycle

is inadvertently initiated. As indicated previously in

FIGURE 6, there is a 5 minute delay period after the

WASH button is pushed, before the wash process

begins. If the WASH cycle is accidentally initiated, the

operator may reset the system during the 5 minute

delay period, and the system will return to NORMAL

operation. If the system is reset after the 5 minute

delay period, the WASH cycle will be accelerated and

the system will return to the NORMAL mode after the

WASH cycle is complete.

FIGURE 7 on page 10 illustrates the sequence of

events that occurs when the system is reset during

the different stages of system operation. When the

system is in the RESET mode, the white RESET light

will illuminate on the control panel. It is recommended

that the system be programmed so that system on/

off and wash cycles are automatically initiated. This

programming will be done by the factory engineer

during commissioning.

Figure 6: WASH Mode Indicating Light and

Component Status

Indicating Light Status

Control System

- WASH (yellow): On

WASH Mode Steps and

Component Status

Delay Period (5 min.)