Mounting The External Temperature Sensor; Electrical Connection; Electrical Installation - Dimplex Siw 6 Mu Gebrauchsanweisung

SIW 6MU - SIW 11MU
7.5.1 Sensor characteristic curves
-20 -15
Temperature in °C
NTC-2 in k 14,6 11,4
NTC-10 in k 67,7 53,4
15 20 25 30 35
2,9 2,4 2,0 1,7 1,4
14,9 12,1 10,0 8,4 7,0
The temperature sensors to be connected to the heat pump man-
ager must correspond to the sensor characteristic curve illus-
trated in Fig.7.1 on pag. 10. The only exception is the external
temperature sensor included in the scope of supply of the heat
pump (see Fig.7.2 on pag. 10)
Fig. 7.1: Sensor characteristic curve NTC-10
Fig. 7.2: Sensor characteristic curve NTC-2 according to
DIN 44574 Outdoor temperature sensor
7.5.2 Mounting the external
temperature sensor
The temperature sensor must be mounted in such a way that all
weather conditions are taken into consideration and the meas-
ured value is not falsified.
 On the external wall of a heated room used as living space,
if possible on the north or north-west side of the building
 Do not install in a "sheltered position" (e.g. in a wall niche or
under a balcony)
 Not in the vicinity of windows, doors, exhaust air vents,
external lighting or heat pumps
 Not to be exposed to direct sunlight at any time of year
Sensor lead: Max. length 40 m; min. core cross-section
0.75 mm²; external diameter of the cable 4-8 mm.
EN-10
-10 -5 0 5 10
8,9 7,1 5,6 4,5 3,7
42,3 33,9 27,3 22,1 18,0
40 45 50 55 60
1,1 1,0 0,8 0,7 0,6
5,9 5,0 4,2 3,6 3,1
452236.66.02 · FD 9303

7.6 Electrical connection

7.6.1 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 connected
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-sup-
pressed. 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
N1-J11; N1-J19; N1-J20; N1-J23; N1-J24 and the terminal strips
X3. If, due to a wiring error, the line voltage is mistakenly con-
nected to these terminals, the heat pump manager will be de-
stroyed.

7.6.2 Electrical Installation

1) For the output section, two separate three-core supply ca-
bles are fed from the heat pump meter via the utility com-
pany blocking contactor (if required) into the heat pump.
The two mains cables are connected at the heat pump
switch box using terminals X1: L1/N/PE (heat pump) and
L20/N0/PE (pipe heating).
The enclosed mini-grip bag contains four links that have to
be connected to terminal X1 (L10-L2, L2-L20, L20-L3, L3-
L30) as shown in the circuit diagram (see appendix).
An all-pole disconnecting device with a contact gap of at
least 3 mm (e.g. utility company blocking contactor or power
contactor) as well as an all-pole circuit breaker with common
tripping for all external conductors must be installed in the
power supply (tripping current and characteristic in compli-
ance with the device information).
2) The three-core electric supply cable for the heat pump man-
ager (heating controller N1) is fed into the heat pump.
Connection of the control line to the switch box of the heat
pump via terminals X2: L/N/PE.
Details on the power consumption of the heat pump are
listed on both the product information sheet and the type
plate.
The (L/N/PE ~230 V, 50 Hz) supply cable for the heat pump
manager must have a constant voltage. For this reason, it
should be tapped upstream from the utility blocking contac-
tor or be connected to the household current, as important
protection functions could otherwise be lost during a utility
block.
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