EN-8 452235.66.05 · FD 9506
www.dimplex.de
English
SI 6TU - SI 18TU
3)
The utility blocking contactor (K22) with 3 main contacts (1/
3/5 // 2/4/6) and an auxiliary contact (NO contact 13/14)
should be dimensioned according to the heat pump output
and must be supplied by the customer.
The NO contact of the utility blocking contactor (13/14) is
looped from terminal strip X3/G to connector terminal X3/A1.
CAUTION! Extra-low voltage!
4)
The contactor (K20) for the immersion heater (E10) of mono
energy systems (HG2) should be dimensioned according to
the radiator output and must be supplied by the customer. It
is controlled (230 V AC) by the heat pump manager via ter-
minals X2/N and
X2/K20.
5)
The contactor (K21) for the flange heater (E9) in the hot
water cylinder should be dimensioned according to the radi-
ator output and must be supplied by the customer. It is con-
trolled (230 V AC) by the heat pump manager via terminals
X2/N and
X2/K21.
6)
The contactors mentioned above in points 3, 4 and 5 are in-
stalled in the electrical distribution system. The mains cable
for the installed pipe heater must be laid and secured in ac-
cordance with the valid standards and regulations.
7)
All installed electric cables must have permanent wiring.
8)
The heat circulating pump (M13) is connected to terminals
X2/N and X2/M13.
9)
The DHW loading pump (M18) is connected to terminals X2/
N and X2/M18.
10) The brine or well pump (M11) is connected to terminalsX2/N
and X2/M11 and PE.
11) The return flow sensor is integrated into the heat pumps
and is connected to the heat pump manager via the control
line. The return flow sensor must be installed in the im-
mersion sleeve in the manifold only when a dual differen-
tial pressureless manifold is used. The single-core wires are
then connected to terminals X3/GND and X3/ R2.1. Bridge
A-R2 (situated between X3/B2 and X3/1 when delivered)
must then be moved to terminals X3/1 and X3/2.
12) The external sensor (R1) is connected to terminals X3/GND
and X3/R1.
13) The domestic hot water sensor (R3) is included with the do-
mestic hot water cylinder and is connected to terminals X3/
GND and X3/R3.
7.5.3 Connecting an electronically
regulated circulating pump
Electronically regulated circulating pumps have high starting cur-
rents, which may shorten the service life of the heat pump man-
ager. For this reason, a coupling relay is installed or must be in-
stalled between the output of the heat pump manager and the
electronically regulated circulating pump. This is not necessary if
the permissible operating current of 2 A and a maximum starting
current of 12 A are not exceeded in the electronically regulated
circulating pump or if express approval has been issued by the
pump manufacturer.
ATTENTION!
It is not permitted to connect more than one electronically regulated
circulating pump via a relay output.
8 Commissioning
8.1 General Information
To ensure that start-up is performed correctly, it should only be
carried out by an after-sales service technician authorised by the
manufacturer. These measures can also include an additional
warranty under certain conditions (see Warranty).
8.2 Preparation
The following items need to be checked prior to start-up:
The heat pump must be fully connected, as described in
Chapter 7.
The heat source system and the heating circuit must have
been filled and checked.
The dirt trap must be inserted in the brine inlet of the heat
pump.
All valves that could impair proper flow in the brine and heat-
ing circuits must be open.
The heat pump manager must be adapted to the heating
system in accordance with the controller’s operating instruc-
tions.
8.3 Start-up Procedure
The heat pump is started up via the heat pump manager.
ATTENTION!
The heat pump must be started up in accordance with the installation and
operating instructions of the heat pump manager.
If an overflow valve is fitted to assure the minimum heating water
flow rate, the valve must be set in accordance with the require-
ments of the respective heating system. Incorrect adjustment
can lead to faulty operation and increased energy consumption.
We recommend carrying out the following procedure to correctly
adjust the overflow valve:
Close all of the heating circuits that may also be closed during
operation (depending on the type of heat pump usage) so that
the most unfavourable operating state - with respect to the water
flow rate - is achieved. This normally means the heating circuits
of the rooms on the south and west sides of the building. At least
one heating circuit must remain open (e.g. bathroom).
The overflow valve should be opened far enough to produce the
maximum temperature spread between the heating flow and re-
turn flow listed in the table below for the current heat source tem-
perature. The temperature spread should be measured as close
as possible to the heat pump. The heating element of mono en-
ergy systems should be disconnected during start-up.
Heat source
temperature
Max. temperature spread
between heating flow and return
flow
From
To
-5 °C
0 °C
10 K
1 °C
5 °C
11 K
6 °C
9 °C
12 K
10 °C
14 °C
13 K
15 °C
20 °C
14 K
21 °C
25 °C
15 K
Summary of Contents for SI 11TU
Page 2: ......
Page 26: ...EN 12 452235 66 05 FD 9506 www dimplex de English SI 6TU SI 18TU ...
Page 50: ...A XII 452235 66 05 FD 9506 Anhang Appendix Annexes SI 6TU SI 18TU 3 3 Last Load Charge ...
Page 58: ...A XX 452235 66 05 FD 9506 Anhang Appendix Annexes SI 6TU SI 18TU ...
Page 59: ...www dimplex de 452235 66 05 FD 9506 A XXI Anhang Appendix Annexes SI 6TU SI 18TU ...
