Troubleshooting - Honeywell NK295C Installation Instruction

8.1.3 Leak-tightness
Interval: once a year
To be carried out by an installation company or
the operator.
1. Open sampling point.
Refilling combination changes into flow position.
2. Optical control refilling combination of location and
tightness.
If water exits at the refilling combination, call the
technical customer support service!

10. Troubleshooting

Problem
Beating sounds
Water is escaping from refilling
combination
No or too small water flow rate Refilling combination is not fitted in flow
Refilling combination change
not into flow position
Refilling combination opens and
closes in short time intervals
(pump)
Honeywell GmbH
GB
Cause
Non return valve is faulty
Sealing elements are contaminated or
worn
direction
Ball valves up- or downstream of refilling
combination are not fully open
Drain cocks at the shut off ball valves up-
and downstream of the refilling combina-
tion are not fully close
Pressure reducing valve is not set to the
desired outlet pressure
Check supply pressure with reaction pres-
sure
plant downstream leaky
Non return valve is contaminated or worn
7
9. Disposal
• Dezincification-resistant brass housing
• Discharge connection, valve cartridge, valve insert
and spring hood in high-grade synthetic material
• High-grade synthetic material check valve
• Seals in NBR
• Spring steel adjustment spring
• Isolation shell in EPP
Observe the local requirements regarding
correct waste recycling/disposal!
Remedy
Call our Technical Customer
Services
Call our Technical Customer
Services
Fit refilling combination in flow direc-
tion (note direction of arrow on
housing)
Open ball valves entirely
Close drain cocks
Set outlet pressure
Call our Technical Customer
Services
Check plant
Call our Technical Customer
Services
MU1H-1548GE23 R0609