Heat Source Connection; Domestic Hot Water Connection; Temperature Sensor - Dimplex SIW 6TES Instructions D'installation Et D'utilisation

Minimum heating water flow
The minimum heating water flow through the heat pump must be
assured in all operating states of the heating system.
This can be achieved using a heating circuit which is continu-
ously open, e.g. in a reference room which is regulated using a
room temperature controller (available as a special accessory).
(see integration diagram Cap. 4.1 on pag. XIV)
NOTE
System faults may result if this is not observed.
The frost protection function of the heat pump manager is active
whenever the heat pump manager and the heat circulating
pumps are ready for operation. The system must be drained if
the heat pump is taken out of service or in the event of a power
failure. If heat pump systems are implemented in buildings where
a power failure cannot be detected (holiday homes etc.), the
heating circuit should be operated with suitable frost protection.
The domestic hot water volume should be checked by the heat-
ing system technician. An additional expansion vessel and a
safety valve must be installed by the customer (according to DIN
4751, Part 1). The tables listed in the manufacturers' catalogues
simplify dimensioning the system on the basis of the water con-
tent.

7.3 Heat source connection

The following procedure must be observed when making the
connection:
Connect the brine pipe to the heat pump flow and return.
An additional expansion vessel and a safety valve must be in-
stalled by the customer (according to DIN 4751, Part 1).
The hydraulic integration diagram must be adhered to.
The dirt trap included in the scope of supply must be inserted in
the brine inlet of the heat pump by the customer.
The brine liquid must be produced prior to charging the system.
The liquid must have a brine concentration of at least 25 % to en-
sure frost protection down to -14 °C.
Only monoethylene glycol or propylene glycol-based antifreeze
may be used.
The heat source system must be de-aerated and checked for
leaks.
ATTENTION!
The brine solution must contain at least a 25 % concentration of a
monoethylene glycol or propylene glycol-based antifreeze, which must
be mixed before filling.
ATTENTION!
A suitable de-aerator (micro bubble air separator) must be installed in the
heat source circuit by the customer.
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7.4 Domestic hot water connection

7.4.1 General
Installation and commissioning must be performed by an author-
ised specialist company. The entire system, including all factory-
assembled components, should be inspected to ensure that eve-
rything is working properly and that there is no leakage. The
enamelled steel complying in accordance with DIN 4753 is suita-
ble for normal drinking water.
The following materials can be used in the consumer's domestic
hot water system:
 Copper
 Stainless steel
 Brass
Plastic

Depending on the materials used in the domestic hot water sys-
tem (customer installation), material incompatibility may lead to
corrosion damage. This especially applies to zinc-plated materi-
als and materials containing aluminium. If there is a risk of water
contamination during operation, it may be necessary to install a
filter.
The maximum permissible operating overpressure indicated on
the type plate must not be exceeded. It may be necessary to
mount a pressure reducer.
NOTE
To compensate for pressure fluctuations or water shocks in the cold
water network and to prevent unnecessary pressure loss, a closed
expansion vessel with flow fitting must be mounted.
7.4.2 Commissioning
Ensure that the water supply is turned on and the cylinder is filled
before start-up.
The domestic hot water cylinder must be equipped with a certi-
fied, spring-loaded membrane safety valve by the customer. A
shut-off device must not be installed between the cylinder and
the safety valve. The operational reliability of the valve must be
checked at regular intervals. We recommend having an annual
service inspection carried out by a qualified specialist company.

7.5 Temperature sensor

The following temperature sensors are already installed or must
be installed additionally:
 External temperature sensor (R1) supplied (NTC-2)
 Return temperature heating circuit (R2) installed (NTC-10)
 Return temperature primary circuit (R24) installed (NTC-10)
 Flow temperature heating circuit (R9) installed (NTC-10)
Return temperature primary circuit (R6) installed (NTC-10)

 Domestic hot water temperature (R3) installed (NTC-10)
452236.66.05 · FD 9606
SIW 6TES - SIW 11TES
EN-9