JOHNSON CONTROLS
16
FORM 100.50-NOM7 (808)
Start-up
• The control will also restart the process if the
rollout switch(s) (2 switches, located above
the burners) opened and have been reset, indi-
cating burning inside the burners and/or outside
of the heat exchanger tubing.
• Rollout switches are manual reset, and need to
physically reset if they open for any reason.
This is because the problem is usually block-
age of the ue passages and service personnel
needs to observe the passages rst hand.
• The control circuit and burners are factory
tested in to insure that all of these steps are
followed.
GAS HEAT MODELS "MODULATING"
Not available.
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