Description of functions - Basic functions
FIGHTER 1330
26
The need of hot water production is created when
the temperature on the hot water sensor (VVG) drops
below the temperature set in menu 1.1. The need
ceases when the temperature exceeds the set tem-
perature in menu 1.2.
When two or more compressors are programmed for
hot water charging, these are engaged and disen-
gaged with 0.5 degrees minus difference for starting
and stopping.The value can be set in menu 1.8. That’s
to say, if compressor 1 starts at 50 °C and stops at
55 °C then compressor 2 starts at 49.5 °C and stops
at 54.5 °C i.e. each FIGHTER 1330 connected for pos-
sible switching between hot water and heating has its
own shuttle valve.
Hot water mode normally has priority over heating mode.
However, it is possible to set the period time and max
time for hot water production in menus 1.6 and 1.7.
When in heating mode, the hot water temperature is
measured before stopping. With less than 2 degrees
to hot water start, hot water mode will start using one
compressor directly without stopping, once the heat-
ing requirement is reached.
Menu 1.1 Start temperature HW
The temperature when the heat pump starts to
work with the hot water production is set here.
When brackets are shown, this means the high
pressure pressostat has tripped during hot water
charging and FIGHTER 1330 has automatically
lowered the set temperature by the value in brack-
ets. The reduction is removed when the value is
changed. The value is adjustable between 5 and
55 °C. The factory setting is 45 °C.
Menu 1.2 Stop temperature HW
The temperature when the heat pump stops work-
ing with the hot water production is set here. When
brackets are shown, this means the high pressure
pressostat has tripped during hot water charging
and FIGHTER 1330 has automatically lowered
the set temperature by the value in brackets. The
reduction is removed when the value is changed.
The value is adjustable between 20 and 60 °C.
The factory setting is 50 °C.
Menu 1.6 Periodtime HW/Heat.
The length of the period time for hot water pro-
duction and heating are set here. The value is
adjustable between 0 and 60 minutes. The fac-
tory setting is 60 minutes.
Menu 1.7 Maxtime HW-product.
Here you select how much time of the period time
(menu 1.6) is to be used to heat the hot water
when there is a need of both heating and hot
water. The value is adjustable between 0 and 60
minutes. The factory setting is 60 minutes.
Connection of hot water production
The shuttle valve (VXV) is connected to the terminal
block X6:4 (230 V), X6:5 (N), X6:6 (230 V with hot
water production) and X6:7 (230 V with heat produc-
tion).
The hot water sensor (VVG) is installed in the water
heater's submerged tube. The sensor must make good
contact with the measurement area to give the best
function. The sensor is connected to screw terminals
X4:11 and X4:12 on the EBV-card.
LEK
X6
X4
+EBV-card
X4
Hot water
Quick guide - menu settings hot water production
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