MAV GB 0451-2
611260
ETS 12 / 121
R
INSTALLATION INSTRUCTIONS
ETS 12 / 121
Electrical addition
Heatpumps are not usually dimensioned to handle the
entire heat output requirement. Some form of addi-
tional output is necessary on cold days.
ETS 12 / 121 consists of an immersion heater with a
contactor set comprising of a thermostat and tempera-
ture limiter. The contactor set is designed for installa-
tion in the electrical connection area on FIGHTER
1110/1115/1120.
This accessory makes it possible to use the Extra hot
water function when a water heater is connected via
the accessory VST 11.
FIGHTER 1110/1115: The function is activated from
menu 14, see the Installation and Maintenance
Instruction.
FIGHTER 1120: The function is activated from menu
9.2.13.2, see the Installation and Maintenance
Instruction.
ETS 12 for 3-phase. Part no 089 399
ETS 121 for 1-phase. Part no 089 419
General
ETS 12 / 121
Components
LEK
67
20
10
25
3
24
23
141
142
145
143
144
140
L
E
K
3
Operating thermostat, standby mode
10
Contactor, immersion heater step 1
20
Contactor plate with components
23
Protective housing, immersion heater
24
Immersion heater
25
Temperature limiter
67
Contactor, immersion heater step 2
140
Cover
141
Seal
142
Knob
143
Cable ties, 4
144
Screws, 4
145
Assembly screws, 4
List of components
NOTE!
The electrical installation must be
carried out by a qualified electrician.
The electrical installation and wiring
must conform to current regulations.
NOTE!
Reset the temperature limiter (25).
It may have tripped during transport.
In the event of a fault on the heat pump's control or
collector circuit you can move the switch (8) to stand-
by mode. Only the heating medium pump and electri-
cal step 2 are activated in this mode. Heat for hot tap
water can not be produced as VST 11 is not active.
The flow temperature is controlled by the thermostat
(3). This needs to be set at an appropriate tempera-
ture depending on the type of heating system and out-
door temperature.
NOTE! When the operating option “fixed condensing”
is selected on FIGHTER 1110/1115, the heating medi-
um pump is not operational.
Standby mode