Charge pump
When the charge pump is connected to the terminal block
X11 (11) terminal 3 and 4 the pump is controlled by F2025.
Pump activity is dependent on the status of F2025, heat-
ing/hot water requirement and the outdoor temperature.
Pump exercising is handled by F2025.
Anti-freeze function
At temperatures below +2 °C, the charge pump runs period-
ically, and at temperatures below -20 °C it runs continually.
This function applies on the condition that F2025 is powered.
35
30
25
20
15
10
5
5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25
0
0LQXWHV SHU PLQXWHV
7HPSHUDWXUH
NOTE
There is a risk of freezing when the charge pump is
connected to terminal block X11 (11) and F2025 is
deenergized.
FIGHTER 2020EXTERNT
Signal vid icke larm
Signal vid larm
Laddpump
Extern värmekabel
N
N
230
3
4
1
X11
2
5
6
11
)
(;7(51$/
6LJQDO RQ
QRQDODUP
6LJQDOV LQ WKH
HYHQW RI DODUPV
&KDUJH SXPS
([WHUQDO KHDW
FDEOH
External heat cable
F2025 is equipped with a terminal block for the Condensation
water trough KVT 11 accessory. Max load is 200 W.
Outside sensor
An outdoor sensor (15) is located on the underside of F2025.
F202518
For the Installer
Electrical connections
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