ETS 12 / 121
■Before the work is started, ensure the heat pump
has been disconnected from the mains.
■Open the covers/plates in the following order:
Lower service cover, lower, right-hand side plate,
upper, angled service cover, open out the electri-
cal panel plate and loosen the top cover.
■Drain the heating medium side according to the
instructions in the Installation and Maintenance
Instruction.
ALoosen the existing blinding plate and fit the seal
(141) and immersion heater (24) in the immer-
sion heater tube.
BCentre the protective housing (23) around the
immersion heater and secure to the frame using
the 2 assembly screws (145).
CPosition the contactor set (20) on the right-hand
side of the electrical connection area, align the
screw holes and secure the plate using the 4
screws (144) and press on the knob (142).
Connect the wires with the connector marked
-X211. The wire marked -X210b is not used.
DConnect the white control wire (marked 13) on
switch (8) terminal 3A.
EConnect the 3-way edge board connector to the
relay board (29) in the intended position, marked
15, 16, 17, see the figure.
FConnect the contactor set's supply wires
(4 x 2.5 mm) to terminal (22) in the electrical con-
nection area.
GRoute the immersion heater wires (7 x 2.5 mm)
through the cable entry to the immersion heater.
HRoute the temperature limiter and thermostat
capillaries through the cable entry and position
them in the pocket tube on the immersion heater.
Make sure the capillaries are insulated and can-
not come into contact with live connections. It is
important that thermostat and overheating pro-
tection capillaries are placed in the immersion
heater's pocket tube in the right order to get the
best function and performance from the immer-
sion heater. See the figure below.
I. Connect the immersion heater according to the
chosen output configuration, see the Connecting
the immersion heater section.
J. Secure the wires and capillaries in the immersion
heater housing using a cable tie (143). Other
cable ties are used as necessary for attractive
and safe cable routing.
K. Screw the cover (140) on the immersion heater
housing using 2 assembly screws (145) and refit
all the covers/plates.
■
Fill the heating medium side with water.
■
Vent the system.
■
Switch on the power.
Installation and connection FIGHTER 1110/1115
