Dimplex SI 10MER Instructions D'installation Et D'utilisation page 24

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7.4.4 Hydraulic distribution system
The compact manifold and the dual differential pressureless
manifold function as an interface between the heat pump, the
heating distribution system, the buffer tank and, in some cases,
even the hot water cylinder. A compact system is used to sim-
plify the installation process, so that a lot of different compo-
nents do not have to be installed individually. Further informa-
tion can be found in the relevant installation instructions.
Compact manifold
The return sensor can remain in the heat pump, or should be in-
stalled in the immersion sleeve. The remaining empty space be-
tween the sensor and the immersion sleeve must be filled com-
pletely with heat transfer compound.
Dual differential pressureless manifold
In order for the heating circuit pumps of the generator and con-
sumer circuits to supply the flow to the return sensor, this must
be installed in the immersion sleeve of the dual differential
pressureless manifold.
7.5 Electrical connection
7.5.1 General
All electrical connection work must be carried out by a trained
electrician or a specialist for the specified tasks in accordance
with the
installation and operating instructions,

 country-specific installation regulations (e.g. VDE 0100),
technical connection conditions of the energy suppliers

and supply grid operators (e.g. TAB) and
local conditions.

To ensure that the frost protection function of the heat pump
works properly, the heat pump manager must remain con-
nected to the power supply and the flow must be maintained
through the heat pump at all times.
The switching contacts of the output relay are interference-
suppressed. Therefore, depending on the internal resistance of
the measuring instrument, a voltage can also be measured
when the contacts are open. However, this will be much lower
than the line voltage.
Extra-low voltage is connected to controller terminals N1-J1 to
-J11, J25, J26, N17-J1 to -J4, -J9, J10 and terminal strip X3. If,
due to a wiring error, the line voltage is mistakenly connected to
these terminals, the heat pump manager will be destroyed.
7.5.2 Electrical installation
1) The ekectric supply cable for the output section of the heat
pump (up to 3-core) are fed from the electricity meter of
the heat pump via the utility blocking contactor (if required)
into the heat pump (see heat pump operating instructions
for supply voltage).
Connection of the mains cable to the switch box of the
heat pump via terminal X1: L/N//PE.
An all-pole disconnecting device with a contact gap of at
least 3 mm (e.g. utility blocking contactor or power contac-
tor) and an all-pole circuit breaker with common tripping
for all external conductors must be installed in the power
supply for the heat pump (tripping current and characteris-
tic in compliance with the device information).
EN-8
2) The three-core electric supply cable for the heat pump
manager (heating controller N1) is fed into the heat pump .
Connection of the control line to the switch box of the heat
pump via terminal X2: L/N/PE.
The (L/N/PE ~230 V, 50 Hz) supply cable for the heat
pump manager must have a constant voltage. For this rea-
son, it should be tapped upstream from the utility blocking
contactor or be connected to the household current, as im-
portant protection functions could otherwise be lost dur-
ing a utility block.
3) The utility blocking contactor (K22) with main contacts
and an auxiliary contact should be dimensioned according
to the heat pump output and must be supplied by the cus-
tomer.
The NO contact of the utility blocking contactor is looped
from terminal strip X3/G (24 V AC) to connector terminal
J5/ID3. CAUTION! Extra-low voltage!
4) The contactor (K20) for the immersion heater (E10) of
mono energy systems (HG2) should be dimensioned ac-
cording to the radiator output and must be supplied by the
customer. It is controlled (230 V AC) by the heat pump
manager via terminals X2/N and N1-J13/NO4.
5) The contactor (K21) for the flange heater (E9) in the hot
water cylinder should be dimensioned according to the ra-
diator output and must be supplied by the customer. It is
controlled (230 V AC) by the heat pump manager via termi-
nals X2/N and N1-J16/NO 10.
6) The contactors mentioned above in points 3, 4 and 5 are
installed in the electrical distribution system. The mains
cable for the installed heater must be laid and secured in
accordance with the valid standards and regulations.
7) All installed electric cables must have permanent wiring.
8) The heat circulating pump (M13) is connected to N1-J13/
NO5 and X2/N. When using pumps where the switching
capacity exceeds the output, a coupling relay must be
inter-posed.
9) The auxiliary circulating pump M16) is connected to N1-
J16/NO9 and X2/N. When using pumps where the switch-
ing capacity exceeds the output, a coupling relay must be
inter-posed.
10) The domestic hot water circulating pump (M18) is con-
nected to N1-J18/NO6 and X2/N. When using pumps
where the switching capacity exceeds the output, a cou-
pling relay must be interposed.
11) The brine or well pump (M11) is activated via the contact
N1-J12/NO3. The connection points for the pump are on
contac-tor K5:2/4/6.
12) The return sensor (R2) is integrated into heat pumps for in-
door installation.
The heat pump manager is connected via the following ter-
minals: X3/GND and N1-J2/B2.
13) The external sensor (R1) is connected to terminals X3/GND
and N1-J2/B1.
14) The domestic hot water sensor (R3) is included with the
domestic hot water cylinder and is connected to terminals
X3/GND and N1-J2/B3.
452232.66.41 · FD 9912
SI 10MER
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