Troubleshooting Chart - Kemper KHS CoolFlow Manuel D'utilisation

6.2

Troubleshooting chart

Component
Process medium buffer
Pumps
Insulation
Bleed valve
Plug connection
Controller
Malfunction Possible cause of fault Recommendation
Flow and return reversed
Reduced performance
Connections on drinking
No function
water side reversed
Pump defective
Shut-off device / check valve
installed wrong way round
Tank insulation not OK
Condensation
Insufficient pressure
Functional limitation
Air in the system
Short-circuit to system fault
Damage installation
in wiring
Power supply not correctly
No function
connected
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Check flow and return lines perfor-
mance during installation (marking
on cold water chiller )
Check connections (marking on
cold water chiller)
Replace pump
Turn shut-off device around
(marking on cold water chiller)
Check insulation and install sky
insulating shell according to
instructions
Use an 8 bar/0.8 MPa safety valve
or diaphragm expansion vessel in
accordance with DIN EN 12828
Bleed the system (» section 3.3
"Bleeding" on page 37)
Check installation connection
(» section 3.4 "Electrical installati-
on" on page 38)
Check connection (» section 3.4
"Electrical installation" on page
38)
EN