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- 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 gauge.
- Refill nitrogen if necessary.
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.
10.2.3Checklist for Inspection
If you conduct inspections on your own, they have to be done at least once a
year according to the following criteria:
Work steps
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 10.3.1).
9
Check the switch-on/off points of the system.
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 and floating switch (refer to Chapter
10.2.1).
10.3 Maintenance
Maintenance should be performed by Honeywell technical staff.
Alterations or modifications of the system are only permitted with the
consent of the manufacturer.
Use only original parts or parts authorised by the manufacturer.
Use of parts other than those authorised may lead to loss of liability for
any damage they may cause.
Reinstall safety equipment and protective devices and activate them
again immediately after work on the system has been completed.
Before starting up again, observe the start-up checklist.
10.3.1Setting the precharge pressure for the membrane pres-
sure vessel
Observe the instructions for the membrane pressure vessel.
Danger
Filling wrong gas in expansion vessel
Danger of poisoning!
Only fill the pressure pad with nitrogen.
Caution
Precharge pressure too high
Danger of damaging the tank!
Observe the values as stated by the manufacturer of the tank
(refer to type label or the tank manual).
The precharge pressure for the pressure vessel should be set to a value that
is lower than the programmed switch-on pressure.
This setting can be made with a valve under the cover hoodon the top of the
tank.
Example: Precharge pressure 10% below the switch-on pressure
Precharge pressure of the membrane pressure vessel p = 0.9 x p
Honeywell GmbH
GB
p
= switch-on pressure of the compact booster unit
E
Recommendation
These are average values. Experiments conducted on tanks have shown
that the best storage volumes were achieved for pressures >3bar with a
factor of 0.9 and pressures of <3bar with a factor of 0.8.
Example:
p
= 5 bar: Precharge pressure 5 x 0.9 = 4.5 bar
E
p
= 2 bar: Precharge pressure 2 x 0.8 = 1.6 bar
E
10.3.2Cleaning the dirt trap
1. Remove the lid
2. Take out the sieve
- blow out if necessary
3. Insert sieve
finished
4. Replace lid
- use new seal if necessary
10.3.3Checklist for maintenance work
Work steps
Setting the precharge pressure for the membrane pressure
vessel
Cleaning the dirt trap
11. Troubleshooting
During the warranty period consult the manufacturer before performing
maintenance work on the system (only work that is required for start-up
and maintenance).
Our customer service department is at your service. Failure to comply
will lead to loss of any liablity claims.
12. Shut-down, restart
12.1 Shutting down the compact booster unit
1. Set main switch to 0.
2. Secure the system against unintentional operation
Empty the compact booster unit if it is shut down for a longer period of
time.
12.2 Restarting the compact booster unit
Please note the procedures in chapter 8.
13. Storage
13.1 Short-term storage
Short-term storage is possible without further preparation under the speci-
fied environmental conditions.
13.2 Storage/Preservation
Caution
Damage during storage caused by frost, humidity, dirt, UV radiation
or pests
Corrosion/Contamination of the system!
Protect the system against frost, do not store outside.
Caution
Damp, dirty or damaged openings and junctions
Danger of leaks and damaging the system!
Uncover openings in the system only during installation.
13.3 Storage conditions
Storage location
Ambient temperature
Relative air humidity
E
14
closed room, dry and dust-free
5°C to 40°C (incl. power pack)
max. 60% r.h. at 40 °C ambient temprature
Translation of original - MU1H-1376GE23 R1215
Interval
yearly
yearly
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