Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 19
4.7
Fire Service
Fire Service Phase 1 may be initiated by turning off a Smoke Sensor input, or by
energizing the Hall Fire Switch "On" input.
Confirm that the car returns to the correct Main and Alternate landings.
Confirm that the car operates as required on Car Fire Service (Phase 2) operation.
NOTE: To reset Hall Fire Service (Phase 1), most codes require the Bypass
input be energized. To disable Hall Fire Service, jump the Hall Bypass input
on. On 2000 (or later) Fire Code, Fire Service (Phase 1) is reset when the Hall
Fire Switch is turned from Bypass to Off.
NOTE: If Car Fire Service (Phase 2) appears to be operating incorrectly,
check the Door Open and Close Limits for proper operation. Most codes
require that the doors be fully open before allowing a change in the mode of
operation on Car Fire Service. Most codes require that Hall Fire Service
(Phase 1) be in effect for the car to return automatically to the main fire
landing when the Car Fire Switch is turned to the off position.
4.8
Failure Timers
4.8.1
Stuck Button Timer
If a car or hall call button remains on for an adjustable time, and other calls are
registered, the stuck button call will be ignored, and the car will answer the other call(s).
The car will return to the stuck button call as it answers other calls, and the stuck button
timer sequence will be repeated.
4.8.2
Running Timers
If the car runs up for an adjustable time, without changing floors, then low oil/shutdown
operation will be initiated. The Shutdown LED on the CPU will come on. The Shutdown
could be caused by a low oil level; a problem with the motor starter circuit(s); or a problem
with the up valve circuit(s). The car will stop running up, then return to the lowest landing
and cycle the doors. It will then be shut down, with only the Door Open Button and door
re-opening devices being operational. The fault can be reset by cycling the Main Line
Disconnect Switch, or by putting the car on "Inspection" then back to "Automatic".
NOTE: If a Reverse Phase Relay or Emergency Power circuitry is supplied,
these will also initiate a shutdown signal if the inputs are not energized.
If the car stops between floors, it will run down until it energizes the Door Zone Input, or
a Leveling Switch Input. This prevents the car from parking between floors. If the car runs
down for over 10 minutes while looking for a floor, it will stop, and return to normal
operation.
