Manual Dimplex SI 35TUR (page 24 of 56) (English, German, French)

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EN-8 452237.66.54a · FD 0110 www.glendimplex.de

English SI 35TUR

7.5.2 Electrical installation work

1) The 4-core electrical supply cable for the output section of

the heat pump is fed from the heat pump meter via the util-

ity company blocking contactor (if required) into the heat

pump.

Connection of the mains cable to the contact plate of the

heat pump via terminals X1: L1/L2/L3/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).

CAUTION!

Ensure the rotary field is clockwise when connecting the

mains cables (if the rotary field is not clockwise, the heat

pump will not work properly, is very loud and may cause

damage to the compressor).

2) The three-core supply cable for the heat pump manager

(heating controller N1) is fed into the heat pump.

Connection of the control cable to the contact plate of the

heat pump via terminal 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 supply cable (L/N/PE~230 V, 50 Hz) for the heat pump

manager must have a continuous voltage. For this reason,

it should be tapped upstream from the utility blocking con-

tactor or be connected to the household current, because

otherwise important protection functions could be lost

during a utility block.

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 on-site.

The NO contact of the utility blocking contactor (13/14) is

looped from terminal strip X3/G to controller N1/J5-ID3.

CAUTION! Extra-low voltage!

4) The contactor (K20) for the immersion heater (E10) of

mono energy systems (HG 2) should be dimensioned ac-

cording to the radiator output and must be provided on-

site. It is controlled (230 VAC) from the heat pump man-

ager via terminals X2/N and contact N1/J13-NO4 on the

heat pump manager.

5) The contactor (K21) for the flange heater (E9) in the do-

mestic hot water cylinder should be dimensioned accord-

ing to the radiator output and must be provided on-site. It

is controlled (230 V AC) from the heat pump manager via

terminals X2/N and contact N1/J16-NO10.

6) The contactors mentioned above in points 3, 4 and 5 are

installed in the electrical distribution system. Mains cables

for installed heating systems must be designed and pro-

tected in accordance with the valid standards and regula-

tions.

7) All installed electric cables must have permanent wiring.

8) The heat circulating pump (M13) is activated via the con-

tact N1-J13/NO5. Connection points for the pump are

coupling relays KM13/14 and X2/N.

9) The auxiliary circulating pump (M16) is activated via the

contact N1-J16/NO9. Connection points for the pump are

coupling relays KM16/14 and X2/N.

10) The domestic hot water circulating pump (M18) is acti-

vated via the contact N1-J13/NO6. Connection points for

the pump are coupling relays KM18/14 and X2/N.

11) The brine or well pump (M11) is activated via the contact

refrigeration circuit controller N0/J18-Out3. A coupling

relay is already integrated in this output. If an additional

well pump is used, the protective motor switch at the site

must be checked and replaced if necessary.

Ensure that the power supply for these terminals cannot be

switched off by the tariff contactor when connecting the

mains cable for the well pump, in order to safeguard the

switch-off delay of the well pump.

12) A return sensor is integrated into the heat pumps. The de-

mand sensor must be installed in the immersion sleeve in

the manifold only when a dual differential pressureless

manifold is used. The single-core wires are then connected

to terminals X3/GND and controller N1/J2-U2.

13) The external sensor (R1) is connected to terminals X3/GND

and controller N1/J2-U1.

14) The domestic hot water sensor (R3) is included with the

domestic hot water cylinder and is connected to terminals

X3/GND and controller N1/J2-U3.

All lines must be fed into the device from the back and secured

on the designated strain relief plates in the switch box using

cable connectors.

7.5.3 Connection of electronically

regulated circulating pumps

Electronically regulated circulating pumps have high starting

currents, which may shorten the service life of the heat pump

manager. A coupling relay must therefore be installed between

the output of the heat pump manager and the electronically

regulated circulating pump. This is not necessary if the permis-

sible operating current of 2 A and a maximum starting current

of 12 A of the electronically controlled circulating pump is not

exceeded or an explicit release is in place from the pump man-

ufacturer.

CAUTION!

It is not permitted to connect more than one electronically

regulated circulating pump via a relay output.

Supply

mains cables

Supply

signal cables

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Dimplex SI 35TUR Manual

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