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.
A.
Loosen the existing blinding plate and fit the seal
(141) and immersion heater (24) in the immer-
sion heater tube.
B
Centre the immersion heater housing (23) around
the immersion heater and secure to the frame
using the 2 assembly screws (145).
C
Position 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 wire with the connector marked
-X210b.
The wire marked X211 is not used.
D
Remove the tow jumpers between -X6:11–12
and -X6:13–14.
Connect:
wire 021 to X6:11
wire 022 to X6:13
wire 023 to K69:13
wire 024 to X6:12
wire 025 to X6:14
wire 026 to K69:14
wire 027 to X6:15
E
Connect the contactor set's supply wires
(4 x 2.5 mm) to terminal -X9.
F
Route the immersion heater wires (7 x 2.5 mm)
through the cable entry to the immersion heater.
G
Route 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.
H
Connect the immersion heater according to the
chosen output configuration, see the Connecting
the immersion heater section.
I
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.
J
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 1120
Termostat
Överhettningsskydd
LEK
J
A
H
B
I
G
F
C
D
E
The figure shows the 3-phase, FIGHTER 1120 model
Overheating protection
Thermostat