CHAMPION Heat Recovery - Manual (Page 12)

6
Setting the Booster Pressure Reducing Valves (PRV's)
Installation
Installation
1. Ensure that all utility connections are complete.
2. Remove the lower front panel of the unload section.
3. Remove the coil assembly (A) from the multi-rinse valve.
CAUTION:
to prevent damage to the valve coil, energize the multi-rinse valve for as short a
period as needed to make necessary PRV adjustments.
Immediately reinstall the coil assembly when PRV adjustments have been completed.
4. Turn on main water supplies to the dishwasher. Make sure steam supply is OFF.
5. Close all of the drain valves.
6. Remove the main control cabinet cover and set the Auto/Manual switch to the Manual position.
7. Turn ON main breaker power to dishwasher.
8. Turn OFF main breaker power to the booster and optional blower dryer (if equipped).
9. Turn dishwasher main power switch ON.
10.
Allow dishwasher tanks to completely fill with water.
11. When dishwasher tanks are full, turn dishwasher main power switch OFF.
12. Turn the Auxiliary wash tank drain handle open and drain the tank (leave the drain open).
(This places the dishwasher in a FILL mode because the tank is empty.)
13. Turn the dishwasher main power switch ON.
14.
The Green FILL light in the control cabinet will be ON when the machine is filling.
15.
While the machine is filling, adjust the HOT PRV #1 until the final rinse pressure gauge indicates
20 PSI. Tighten the PRV adjustment lock-nut to hold the setting.
16.
Close the drain and allow the dishwasher to fill with water.
17. Turn the dishwasher main power switch OFF.
18. Make sure the main breaker or steam supply to the booster is OFF.
Turn the hot water off.
19. Turn the dishwasher control panel Power Switch on.
20. Press the ENERGY SAVER mode selector switch on the main control cabinet.
The green LED will illuminate and the conveyor will run.
21.
While the machine is running, adjust the COLD PRV #2 until the final rinse pressure gauge indicates 20
PSI. Tighten the PRV adjustment lock-nut to hold the setting.
22. Now set the cold water
PRV #2 by adjusting the PRV until the final rinse pressure gauge indicates 20 PSI
flow pressure. Note that the pressure gauge will cycle on for 15 seconds and then off for 30; therefore, the
pressure gauge will read a flowing pressure for 15 secs., then read the no pressure for 30 seconds.
23. The Green FINAL light will be ON when the Cold water valve is ON. The Green REHEAT light will be ON
when the Hot water valve is ON.
24. To complete the settings: Turn the dishwasher main power switch OFF.
25. Turn the main breaker or steam supply to the booster on.
26. Turn the Automatic/Manual switch inside the control cabinet to the Automatic position.
Refer to the illustrations on the next two pages for the location of the water valves and the Green
indicator lights.