Greenheck Waterwash (458292) - Manual (Page 30)

30 April 2005
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The “Start Fan” and “Stop Fan / Start Wash” buttons must be pushed everyday for PLC to be reset.
Each sequence can wash up to the following combined hood lengths.
10 feet with 3 ⁄
4
in. piping,
20 feet with 1 in. piping,
30 feet with 1
1 ⁄
4
in. piping and
45 feet with 1 1 ⁄
2
in. piping.
The following PLC lights will be lit during wash mode:
Run
I 0.2
I 0.3
- Signal from wash timer (only on at time set on timer). If no timer, this will always be lit.
Q 0.1 - main wash solenoid valve stays on for entire wash sequence
Q 0.2 thru Q 0.6 – wash sequence solenoid valves
Q 1.0
- detergent pump on during each wash sequence
I 1.5 - last sequence indicator on during last sequence (CPU 214 only)
Q 0.0 & Q 0.7 - fans on at end of last sequence
Water requirements:
Water temperature – 140 to 180 degrees Fahrenheit
Water pressure – 40 to 60 PSI
Average water usage – 1.1 GPM per linear foot of hood (@ 40 PSI)
Detergent requirements: SC-5 from 2010 Products or X-701 from ZEP manufacturing.
5. Fire Mode. Exhaust fan should be on. Supply fan should be off. Water should be spraying in each exhaust
plenum. The following PLC lights will be lit:
Run
I 1.5
- last sequence indicator (CPU 214 only)
I 0.3 - Signal from wash timer (only on at time set on timer). If no timer, this will always be lit.
Q 0.0 - fans on
Q 0.1 - main solenoid valve on
Q 0.2 - sequence 1 solenoid valve on
Q 0.3 - sequence 2 solenoid valve on
Q 0.0 - sequence 3 solenoid valve on
Q 0.5 - sequence 4 solenoid valve on
Q 0.6 - sequence 5 solenoid valve on
Q 1.0 - detergent pump on
Q 1.1 - fire mode light on