Honeywell GmbH
18
Translation of original - EN1H-1374GE23 R1014
GB
9.2.2 Monitoring Operation
During operation observe and check the following points:
1. Check the functional operation.
2. Check switch-on/off pressure when operating the pump and compare to
the values on the type label.
3. Compare the precharge pressure of the membrane pressure vessel to the
recommended values (refer to Chapter 9.3.1).
- Close the shut-off valves under the tank and empty the tank with the drain
valve.
- Unscrew the protective cap of the valve on the membrane pressure
vessel and check the precharge pressure with a tire guage.
- Refill nitrogen if necesary.
4. Check the running noise of the roller bearings.
- Vibrations, noise, and increase in power consumption for consistent
operating conditions are a sign of wear.
5. Check the function of any additional connections.
9.2.3 Mode of operation in the event of power loss
In the event that the mains power supply of the entire system fails (standby
is no longer functional), the inlet shut-off valve is closed by the battery
powered voltage supply.
9.2.4 Checklist for Inspection
If you conduct inspections on your own, they have to be done at least once a
year according to the following criteria:
Danger
Filling wrong gas in expansion vessel
ª
Danger of poisoning!
Only fill the pressure pad with nitrogen.
Caution
Dry running causes increased wear
ª
Damage to the pump unit!
Never operate the pump unit when it is empty.
Never close the shut-off valve in the suction line and/or supply
line during operation.
Caution
Exceeding the permissible temperature for the pumped medium
ª
Damage to the pumps!
Operation is not permitted with closed shut-off valves over
longer periods of time (overheating of pump medium).
Observe the temperature values as stated in the data sheet and
under technical data.
Check the batteries yearly, replace if necessary.
Observe the manufacturer`s manual on how to use the rechargable
backup battery.
Work steps
finished
1
Read instructions.
2
The pump and drive motor should run smoothly, the floating
ring seals should not leak.
3
Check the elastic transmission elements.
4
Check if the shut-off, drain and check valves function proper-
ly and don`t leak.
5
Clean the dirt trap in the pressure reducing valve (if applica-
ble).
6
Check the compensators for wear (if applicable).
7
Check the precharge pressure and, if necessary, check if the
membrane pressure vessel leaks (refer to Chapter 9.3.1).
8
Check automatic switching.
9
Check the switch-on/off points of the system.
10 Check if functional operation is performed properly.
11 Check if the entire system is functioning properly and compa-
re values to those on the type label.
12 Check the water supply, precharge pressure, water shortage
monitoring, and pressure reducing valve.
13 Check the buffer tank, shut-off valve and floating switch (refer
to Chapter 9.2.1).
