END USER MANUAL
OPERATION AND MAINTENANCE OF HIGH PRESSURE WATER MIST PUMP UNIT
REVISION 4, MAY 2016
For systems where operational status is monitored automatically, daily controls are not necessary.
For monitored systems, the daily inspection can be deleted and the daily test carried out together
with the weekly routine that shall be carried out at intervals of not more than 7 days.
The following shall be checked and recorded:
The fill level of the unit tank.
No errors indicated on the pump unit UCP.
No leakage from the pump unit.
Start the high-pressure pump unit by simulated pressure drop. Check the correct operational
position of unit’s main stop and test valves when inspection is finished.
In addition to the weekly programme, the following shall be controlled and recorded at intervals of
not more than 30 days:
Check condition of unit gauges (mechanical) and that normal system pressures are being
maintained.
Function control of refill equipment for unit tank.
Visual control of unit filters; clean or replace as necessary.
Conduct visual control of pipe work, nozzles and pipe hangers
In addition to the monthly programme, the following shall be controlled and recorded at intervals of
not more than 3 months:
Carry out the weekly test program.
Test audible and visual alarm devices supplied from the unit.
Check all water flow alarm valves with regard to flow and alarm transmission to alarm panel
Each routine of the quarterly schedule shall be carried out by a competent person of the approved
installer who shall provide the operator with a signed and dated report of the inspection, advise any
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