Connection Of Electric Heater Or Other Heat Source; Troubleshooting And Solutions - Orca WSW COMPOSITE Installation And User Manual

14 Connection of electric heater or other heat source

To connect the electric heater or other heat source, you have to remove the complete top cover and on the
back side of unit remove the black cover of the electronic board:
protection with max. allowed temperature 90°C.

15 Troubleshooting and solutions

Description
Supply connected
Device active
Bottom water temp.
sensor failure
Upper water temp.
sensor failure
Temp. sensor on
entrance in evaporator
failure
Temp. sensor on
evaporator outlet
failure
Air temperature sensor
failure
Solar temperature
sensor failure
High pressure
Low pressure
El heater thermal
protection
Hot gas
Communication failure
Defrost
Under this black cover you will find 3 black connectors with marks L, N and PE.
Under them is written ELECTRIC HEATER.
On this 3 connectors you can connect the electric heater which is installed in water
tank (max. heating power is 2kW and connection cable must be 3x2,5mm
this input you can also the other heat sources.
IMPORTANT: Installed electric heater must have a safety temperature cut-off
switch with max. allowed temperature 90°C.
IMPORTANT: the electric heater must always be installed lower than the
temperature sensor TTT, which controlls the operation for the electric heater.
Even if you connect an additional heat source to the water tank, (directly or
through the integrated heat exchanger), the sensor TTT must be higher than the
heat source in the water tank and this source must have its own thermal
Alarm
P1 Sensor failure or no connection
P2 Sensor failure or no connection
P3 Sensor failure or no connection
P4 Sensor failure or no connection
P5 Sensor failure or no connection
P034 Sensor failure or no connection
Too much gas in the system, no
E1
water in tank
Too little gas in the system, bad
temperature transfer on
E2
evaporator, evaporator sensor
failure
Too high water temperature or
E3
no water in tank
E4
Communication between PCB
E8
and display disabled
Defrost
Reason
Check and replace sensor if
needed
Check and replace sensor if
needed
Check and replace sensor if
needed
Check and replace sensor if
needed
Check and replace sensor if
needed
Check and replace sensor if
needed
Check refrigerant leakage,
clean evaporator, check
sensor on evaporator,
check air flow
Check water supply
Check whole refrigerant
cycle
Check connection between
display and PCB
29
2
). On
Solution