Description of functions - Expansion card 1
37
FIGHTER 1330
Menu 6.1.4 Time of period Hw-cp
Here you select between which times of the day
the hot water circulation pump shall run accord-
ing to the period time (menu 6.1.5) and the oper-
ating time (menu 6.1.6).
Menu 6.1.5 Periodtime Hw-cp
Here the period time for the hot water circulation
pump is set here. Adjustable between 10 and 60
minutes. The factory setting is 15 minutes.
Menu 6.1.6 Operatingtime Hw-cp
The operating time per period for the hot water
circulation pump is selected here. Adjustable
between 1 and 60 minutes. The factory setting is
3 minutes.
Connection of hot water circulation pump
There is a potential free relay for the Hw-cp function,
which can be used for the control voltage or power
supply (max 16 A, 250 V). When the relay is used for
the control voltage, you can strap the power supply
from X6A:20 to X6A:19, use X6A:21 as N and then
get the signal on X6A:18. Max. current may then be
0.4 A and the control voltage becomes 230 V. If you
take more output from X6A:20 you can overload the
L1-phase causing the fuse to trip.
The supply to the control signal/power supply to
the Hw-cp (VVC) is connected to the terminal block
X6A:19 (Max fuse 16 A and 250 V) and the control
signal/power supply out is on terminal X6A:18.
LEK
X6A
A hot water circulation pump (VVC) can be controlled
to circulate the hot water by operating time or period
time within the selected time period.
The Hot water circulation pump (Hw-cp) (VVC) con-
nection can be made using a T-piece docking to an
electric water heater (peak water heater). This is done
especially on smaller installations. The docking is inde-
pendent of how the heat pump works with the double-
jacketed water heater.
When connected to a separate Hw-cp (VVC) outlet on
the double-shelled water heater (e.g. VPA) it is impor-
tant that the circulation flow is accurately adjusted and
that the mixing valve on any electric peak water heater
is not set too high. This can result in the stratification in
the double jacket being disturbed and the heat pump
knocked out. This docking is especially used on large
installations, which e.g. use two, double-jacketed water
heaters. The sensor (VVG) is placed in the first water
heater and the Hw-cp (VVC) connection is made to
the other.
+Exp.card 1
Hot water circulation pump
Quick guide - menu settings hot water circulation pump
The outline diagram with docking instruc-
tions is available at www.nibe.com
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