Cool Energy CE-H17, Installation And User Manual

Page: 24 / 29

24 | P a g e
f. To avoid electric shock or fire, don’t store or use, oil pai nt, petrol, combustible gas or
liquid around the unit; don’t throw water or other liquid on to the unit and don’t touch the
unit with wet hands.
g. Don’t adjust the switch, valve, controller or internal data without permission of customer
support team.
h. If a safety protection device is activated at start up, please contact the customer support
team.
Product Protection
1. Compressor Time Delay Protection:
To ensure the compressor is protected, a time delay of 3
minutes is needed to restart the compressor following it becoming satisfied.
2.
Compressor High Discharge Temperature Production (error code: Er28):
If a high
compressor discharge temperature ( ≥ 115C (239F)) is detected for 30 seconds, the heating function
will be disabled, and the error code will be displayed. The heat pump will resume operating
automatically after 3 minutes.
4.
Compressor High Pressure Protection (error code: Er15):
If a high pressure is detected on
the compressor, the heating function will be suspended, the error code will be displayed, and the
alarm will sound. The heat pump unit will resume operation 3 minutes after the high pressure switch
was rest. If the same error code appears for 3 consecutive times within an hour the heating function
will be permanently disabled and the alarm will sound. Please consult an authorised service
technician. This error normally relates to an inadequate water flow rate causing the heat pump to
overheat, check that the system pipework has been designed to allow the water flow rate required
on the data badge.
5.
Compressor Low Pressure Protection (error code: Er27):
If a low pressure is detected on the
compressor, the heating function will be suspended, the error code will be displayed, and the alarm
will sound. The heat pump unit will resume operation 3 minutes after the high pressure switch was
rest. If the same error code appears for 3 consecutive times within an hour, the heating function will
be permanently disabled, the error code will be displayed and the alarm will sound. Please consult
an authorised service technician.
NOTE:
Low pressure will not be detected under 2 circumstances, during the defrosting period
and/or during the first 5 minutes after the compressor has started.
7.
Frost Protection:

During constant temp standby or power off, if ambient temp≤2 ℃ , the unit goes into
anti-freeze protection mode 1, circulating water pump every 40mins for 5min. When
ambient temperature increases the unit will exit anti-freeze protection mode.

During constant temp standby or power off, if ambient temp≤2 ℃ , and water tank
probe is ≤ 4 ℃ , the unit goes into anti-freeze protection mode 2, automatically heating
until water tank temp probe reaches ≥15
℃
or ambient temp ≥ 8
℃
then the unit will exit
anti-freeze protection mode 2.

During antifreeze mode the outlet water temp≤2
℃
, warns water pump fault Er25, until
the outlet water temp≥4 ℃ .