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9. Maintenance
Maintenance should be performed by Honeywell technical staff.
• If necessary contact the service department at Honeywell.
Performance of tasks only by qualified personnel (see section
1.10.1.1).
9.1 Safety instructions for maintenance
Danger
Danger of injury from electric voltage.
High shock currents and burns from direct and indirect contact with
live parts.
Turn off the power supply before maintaining the compact
booster unit and secure it from being turned on.
Warning
Unqualified persons working on the compact booster unit
Danger of injury!
Only let specially qualified personnel perfom repair and mainte-
nance work.
Caution
Inappropriately maintained compact booster unit
The proper function of the compact booster unit can no longer be
ensured!
Maintain the compact booster unit regularly.
Always observe the safety regualations and instructions.
Observe the instructions for working on the pumps.
In case of damage, please contact our service department.
By setting up a maintenance schedule, the required maintenance to
avoid expensive repairs and achieve fault-free and reliable functioning
of the compact buster unit is held to a minimum.
9.2 Overview of inspection tasks
Interval
Operation
semi-yearly
Check pump control
Check protection against dry running
Check pressure hoses
Check floating ring seal
Honeywell GmbH
GB
9.3 Inspection
To ensure that the compact booster unit can be operated reliably, the
required inspections have to be conducted on time.
9.3.1 Check protection against dry running
Interval: semi-yearly
1. Close off drinking water backfeed.
2. Activate a consumer to pump the supply tank empty.
- When the supply tank is empty, the pump control has to shut the pump
down within 10 - 15 seconds. A restart occurs only after pressing the
Reset-key.
9.3.2 Check pressure hoses
Interval: semi-yearly
1. Check pressure hoses for leaks and damage to the metal braiding.
- The hoses are to be replaced in case of leaks or severe damage to the
metallic sheath.
9.3.3 Check pump control
Interval: semi-yearly
1. Open consumer.
2. Ensure that all consumers are closed.
3. The pump must shut down after approx. 10 - 15 seconds after all consu-
mers are closed.
9.3.4 Check floating ring seal leakage
Interval: semi-yearly
Slight wear of the floating ring seal is unavoidable and is accelerated by
abrasive particles in the pumping medium.
1. Check for leakage in the area between motor and pump housing.
2. In case of leakage the floating ring seal must be replaced.
- The replacement should be performed by Honeywell technical staff.
9.3.5 Check preload pressure of membrane pressure expan-
sion vessel
Interval: semi-yearly
1. Remove protection cap.
2. Check preload pressure. If neccessary, set to 3.2 - 3.4 bar.
9.4 Maintenance
Maintenance should be performed by Honeywell technical staff.
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Translation of original - EN1H-1377GE23 R1114
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