D1000 Installation and Service Manual 29
Home LAB-110073 Rev. 3
SELF-MONITORING SYSTEM
LOW TEMPERATURE SWITCH
HOW TO TEST FUNCTION:
Use heat gun on either the left or right low thermostat. Be careful not to apply heat to the fusible link.
The fan turns ON
The fan remains ON for 3 minutes after temperature falls below 150’F
HIGH TEMPERATURE AND LOW TEMPERATURE SWITCH
HOW TO TEST FUNCTION:
Unplug the red wire with the pink termination connection on the central strip (#4) (Do NOT remove the wire, only
unplug the connection).
Unplug the wires attached to the pressure switch (see Figure 14.10 Extinguisher tank).
The fan turns ON.
The status LED turns from green to orange.
The range fuel source turns OFF.
Audible buzzer inside of the hood is on continuously.
Local Alarm Activation “Y0 to C0”
Remote Alarm Activation “Y1 to C1”
Hood remains powered.
ALARM DISCHARGE SWITCH
HOW TO TEST FUNCTION:
Depress actuator lever located at the micro-switch above to tank (see figure 14.11)
Check continuity of both normally open & closed contacts.
MAINTENANCE SWITCH IN “ON” POSITION
HOW TO TEST FUNCTION:
The Maintenance Switch is illuminated
The status LED turns from green to blinking orange
Power source disconnect turns OFF
No alarm closure at Y1-C1 or Y0 and C0
o No audible buzzer
o Hood remains powered
o Fuel source turns OFF
NOTE: Pressing the reset button
will not reset the hood unless the
maintenance switch is in the OFF
position (not illuminated).
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