892 J006 MNAH | PGC5000 G EN 2 | 29
4. Turn the power ON at the external circuit breaker or switch.
5. Verify any auxiliary gases in the same manner as the Carrier gas.
6. Check for leaks. If a leak occurs during startup, perform the leak checks described in sections
3.4.1 and 3.4.2.
7. Allow sufficient time for oven warm-up. (Temperatures are set during installation). The oven
should stabilize at the temperature indicated in the Data Package. If adjustments are required,
adjust the Digital Temperature Controller as described on the Setup Tab > DTC (Digital
Temperature Controller).
3.4.1 Leak check oven
Leak check is recommended at startup or if an internal carrier gas leak is suspected. Perform a simple
leak check on the oven as follows (see Figure 3-7):
Figure 3-7: Leak Check Oven Example
1. Plug all oven carrier gas vents as applicable: backflush vent(s), selector vent, detector vent(s)
and splitter vent.
2. Under the Setup tab at the user interface, disable burner air and hydrogen fuel zones if
applicable.
3. Set carrier pressure to factory settings.
4. Wait five minutes for pressure to equilibrate.
5. Set carrier pressure to zero psig.
IMPORTANT NOTE: You may observe an initial drop in pressure when setting the carrier pressure
to zero psig. After the initial drop, record the reading and wait 30 minutes. The pressure should
hold. Any decline is excessive and indicates a potential leak.
6. Check for leaks using a suitable leak detection solution. Starting at the inlet to the detector,
work back to the carrier gas supply, plugging the exit of each valve or column to locate the
leak.
3.4.2 Leak check carrier gas supply lines
Check for leaks during initial installation by performing a simple leak check on the utility gases as
applicable:
1. Ensure all power is off.
2. Pressurize all lines to 90 psig.
3. Wait five minutes for pressure to equilibrate.
4. Set supply regulator to zero (0) psi.
5. If pressure bleeds off, repeat steps 1 to 4 and use a suitable leak detection solution to check
for leaks between the carrier gas supply and the ovens.
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