END USER MANUAL
OPERATION AND MAINTENANCE OF HIGH PRESSURE WATER MIST PUMP UNIT
REVISION 4, MAY 2016
The following shall be checked and recorded:
The fill levels of water tanks (storage tanks, reduced capacity tanks, ground and elevated
tanks and break water tank).
Functionality of heating equipment (during heating period) in the water mist equipment
room, for wet pipe systems if installed etc.
Automatic pump starting test.
No errors indicated on the pump unit motor control panel.
No leakage from the pump unit.
The correct operational position of the main and test valves.
The alarm horn and flash light shall be operated for not less than 30 seconds.
Connection between the alarm switch and the ABA control station.
Connection from the the ABA control station to the fire brigade shall be checked. Note: The
procedure shall be agreed with the alarm signal recipient.
In addition to the weekly routine checks, the below mentioned checks and inspections shall be
carried out at intervals of not more than 13 weeks.
All stop valves on the water mist pump unit shall be checked for
good working order, and re-established in the operational position.
Automatic filling of
unit tank
Check and confirm filling level and alarm levels
L5: Alarm at too high a level: alarm shown in display,
system failure relay de-energized and high level relay
energized.
L4: Stop filling level: de-energize filling solenoid valve.
L3: Tank filling level: energize filling solenoid valve.
L2: Alarm at too low a level in tank: Activates alarm for low
level in tank, shown in display, system failure relay is de-
energized and low level relay is energized.
L1: Low-low level in tank: Activates alarm in display,
system failure relay is de-energized, all high-pressure pumps
stopped.
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