5
Equipment functioning
16
Betriebsanleitung_commotherm_5_15_SW_WW_Touch_Englisch_V1.2
Table 5.2: Summary of the operating conditions to be maintained
Fault source
Possible consequences
Measures to avoid faults
Flow temperature
> 58°C
Device works inefficiently
Adapt operating temperatures to
the actual requirements and set as
low as possible
Device is constantly malfunctioning
Compressor is heavily overloaded
Brine temperature
< -6°C
Device works inefficiently
Control the brine flow
Danger of freezing of the device
Possibly air in the system
System pressure too low
No flow rate for
heating equipment
The system will be extremely
overloaded until the safety device is
released (high pressure switch)
With new systems, daily checking
of the water flow rate is required
(thereafter annually).
No flow rate for
brine equipment
The system will be extremely
overloaded until the safety device is
released (low pressure switch)
With new systems, daily checking
of the water flow rate is required
(thereafter annually).
Freezing of the system and the heat
exchanger inside the device may
also occur until the heat exchanger
bursts and then there is a leak of
coolant.
Annual check of frost safety (at
least -15
℃
)
The system is damaged and will
have to be replaced.
No ground water
flow rate (only at
W/W-devices)
The system will be extremely
overloaded until the safety device is
released (low pressure switch)
At new installation the flow and
system
pressure
should
be
controlled every day (thereafter
annually)
Freezing of the device and the
external heat exchanger
Cleaning of the filters
Control
of
the
groundwater
conveyor system
Annual maintenance of the under
water pump
