Milnor 7272TG1L, Installation And Service

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Fire Safety System Operation and Maintenance
PELLERIN MILNOR CORPORATION
5.
What to Do If the Sprinkler Actuates
Sprinkler actuated
The sprinkler can actuate as a result of a fire in the basket or for other reasons.
Temperature switches (Fenwals) in the outlet duct actuate the sprinkler at a
temperature of 225° F (107° C). If, for any reason, this system fails, the dryer
software turns on the sprinkler at an outlet temperature of 240° F (116° C).
A1:
Assess the situation
If there is a fire, the sprinkler should remain on until the fire is extinguished.
Closer inspection, such as looking through the door glass, may be needed to
determine if the basket contents are on fire. Proceed cautiously.
A2:
Reset the sprinkler as
soon as its safe
This is important, both to minimize water
damage and to restore the manual controls,
which may be needed for further assessment
and cleanup. Turn off the sprinkler as follows:
1. Turn the Master switch off (
m
), then back
on(
M
). If the sprinkler was triggered by
software, this is the only way to de-actuate
the "Desires Sprinkler" output relay.
2. Pull the sprinkler reset handle down fully,
as shown at left, so that it latches.
A3: Did a fire occur?
NO
Return the dryer to
service
YES
A4:
Test basket rotation 1. Set the Load Allowed/Not Allowed switch to Not Allowed (
g
) to disable
automatic loading.
2. Press Start (
1
). The operator signal ceases and "WAITING FOR LOAD.
LOADING NOT ALLOWED" appears on the display.
3. Set the Automatic/Manual Rotation switch to Manual Rotation (
H
).
4. Hold the Jog Direction switch (
J
/
j
) in either direction no longer than
necessary to verify the basket rotates.
A5:
Did the basket rotate?
NO
STOP and repair by a
qualified technician
YES
A6: Carefully remove goods
WARNING 4 : Fire Hazard
— Overheated goods can catch fire
spontaneously in the machine or after discharge.
• Stand clear and be prepared with suitable fire equipment.
Use the manual controls, as above, to discharge the goods.
A7:
Lockout/tagout power
and inspect for damage
Lockout/tagout power and inspect the entire machine for damage, especially the
T-seal, support rollers, main blower, and electric cables on top of the machine.
Also check for wet or damp electrical components.
A8:
Restore power and test
dryer functions
Use manual mode to operate all controls (modulating gas valve, lint stripper,
etc.). See "Viewing Inputs and Outputs During Operation" in the reference
manual for more information.
A9: Damage?
YES
STOP and repair by a
qualified technician
NO
RETURN the dryer to
service
Remember to return all manual controls to the automatic operation position
(
B
).
— End of BIPDUM01 —
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