Installation manual
34
EKHBH/X008BA
Indoor unit for air to water heat pump system
4PW54185-1B
T
EST
RUN
AND
FINAL
CHECK
The installer is obliged to verify correct operation of the indoor and
outdoor unit after installation.
Final check
Before switching on the unit, read following recommendations:
■
When the complete installation and all necessary settings have
been carried out, close all front panels of the unit and refit the
indoor unit cover.
■
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
Test run operation (manual)
If required, the installer can perform a manual test run operation at
any time to check correct operation of cooling, heating and domestic
water heating.
Procedure
1
Push the
z
button 4 times so the
t
icon will be displayed.
2
Depending on the indoor unit model, heating operation, cooling
operation or both must be tested as follows (when no action is
performed, the user interface will return to normal mode after 10
seconds or by pressing the
z
button once):
•
To test the heating operation push the
h
/
c
button so the
h
icon is displayed. To start the test run operation press the
y
button.
•
To test the cooling operation push the
h
/
c
button so the
c
icon is displayed. To start the test run operation press the
y
button.
•
To test the domestic water heating operation push the
v
button. The test run operation will start without pressing the
y
button.
3
The test run operation will end automatically after 30 minutes or
when reaching the set temperature. The test run operation can
be stopped manually by pressing the
z
button once. If there are
misconnections or malfunctions, an error code will be displayed
on the user interface. Otherwise, the user interface will return to
normal operation.
4
To resolve the error codes, see
M
AINTENANCE
AND
SERVICE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
This maintenance should be carried out by your local technician.
To execute the maintenance activities as mentioned below, it is only
required to remove the indoor unit cover. See
.
Maintenance activities
To display the last resolved error code, push the
z
button
1 time. Push the
z
button again 4 times to return to
normal mode.
NOTE
It is not possible to perform a test run if a forced
operation from the outdoor unit is in progress. Should
forced operation be started during a test run, the test
run will be aborted.
DANGER: ELECTRIC SHOCK
■
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
■
Make sure that before starting any maintenance or
repair activity, also the power supply to the outdoor
unit is switched off.
■
Do not touch live parts for 10 minutes after the power
supply is turned off because of high voltage risk.
■
The heater of the compressor may operate even in
stop mode.
■
Please note that some sections of the electric
component box are hot.
■
Make sure you do not touch a conductive section.
■
Do not rinse the indoor unit. This may cause electric
shocks or fire.
■
When service panels are removed, live parts can be
easily touched by accident.
Never leave the unit unattended during installation or
servicing when service panel is removed.
Play it safe!
Touch a metal part by hand (such as the stop valve) in
order to eliminate static electricity and to protect the PCB
before performing service.
DANGER
Do not touch water pipes during and immediately after
operation as the pipes may be hot. Your hand may suffer
burns. To avoid injury, give the piping time to return to
normal temperature or be sure to wear proper gloves.
WARNING
■
Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
■
Do not touch the internal parts (pump, backup heater,
etc.) during and immediately after operation.
Your hands may suffer burns if you touch the internal
parts. To avoid injury, give the internal parts time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
