20
a. Startup Procedure
1. Check that the water supply line valves are open.
2. Check that the main manual gas valve is open.
3. Open the steamer door. Check for proper installation of the drain screen, slide racks, and door
gasket assembly. Be sure the drain is not blocked. Shut the steamer door.
4. Refer to electrical layout, Figure 2-6, and Figure 2-1 or 2-2. Be sure the main power switch is in
the OFF position. Verify installation of the proper size fuses or circuit breakers.
5. Set the control panels as follows:
a) Set the ON/OFF levers/switches to the OFF position.
b) Press the TIMED (top) end of the TIMED/MANUAL switch for both compartments.
c) The timer setting is not important while the ON/OFF lever/switch is in the OFF position.
·
The keypad timer display is blank without power.
·
Even if the timer is not zeroed, the timing circuits are not powered.
6. Remove the right side access covers (see Figure 1-2 or 1-3).
b. Blowdown
Inspection
(continue from Startup Procedure)
1. Turn ON electric power to the steamer at the main power switch. The steamer will
immediately start a 3-minute blowdown cycle. During blowdown, the fill and drain valves are
fully open while the steam generator drains are flushed with fresh water.
2. Stop the blowdown cycle before it is complete by setting the ON/OFF levers/switches to the
ON position. This energizes the operating control circuits, the red indicator on the control
panels light, blowdown stops, and the steam generator fills with water.
3. Restart the blowdown cycle by setting the ON/OFF switches to the OFF position. During the
automatic blowdown cycle, make the following checks.
·
Check for plumbing leaks.
·
Look at the one-inch vent gap between the steamer drainpipe and the floor drain. A steady
stream of water should be draining from the steamer.
·
NOTE:
The ON/OFF lever must be turned fully to the OFF position to START the proper
blowdown sequence.
·
After about 3 minutes, the cycle is complete. Check the gap at the steam drain; there
should be no more water flow at this point.
NOTE:
If the clean light comes ON, and this is a new installation or the steamer is not in need of
descaling reset the clean timer; otherwise arrangements should be made to descale the
steamer soon.
WARNING
Death, severe electrical shock or equipment damage can result from touching
any component inside unit when main power switch is in the ON position. Use
extreme caution during testing with the access cover removed.