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G
ENERAL SYSTEM SETUP AND OPERATION
General system setup
The solar kit is designed to transfer the heat from the solar panels to
the heat exchanger of the domestic hot water tank EKHW* and is to
be installed in the system as shown in the scheme below.
6
Cu
1
Cu
7
8
2
1
Solar panels (field supply)
2
Solar pump station (field supply)
3
Solar kit
4
Domestic hot water temperature sensor of the solar pump station
(field supply)
5
Domestic hot water temperature sensor of the indoor unit
6
Solar panel temperature sensor (field supply)
7
Non-return valve (to be included in solar pump station or to be
installed in field piping)
8
The piping between heating circuit and solar kit connection shall
be copper piping and properly insulated to avoid possible injuries.
Heating system.
Refer to the indoor unit installation manual.
The solar panels (1) catch the heat of the sun. When the temperature
of the glycol solution in the solar panel has become higher than the
water temperature in the domestic hot water tank, the pump of the
solar pump station (2) and the pump of the solar kit (3) start to
operate as to transfer the heat to the heat exchanger of the domestic
hot water tank, unless priority is given to the heat pump. Refer to
"Operating instructions" on page 12
system).
EKSOLHWAVJU
Solar kit for air to water heat pump system
4PW54234-1
M
≥1.64 ft (0.5 m)
8
8
3
(subsection:
Configuring your
Requirements and recommendations concerning field
supplied solar panels and solar pump station
CAUTION
Solar panel
Appropriate selection is to be made by your solar panel
supplier, in accordance with local laws and regulations.
Solar pump station
The solar pump station must meet following requirements:
Electrical connection
The solar pump station will have an auxiliary contact that
closes when the contact for the pump of the solar pump
station is operated.
This contact will provide the input towards the indoor unit,
and prevent domestic water heating by the heat pump
and/or booster heater during solar heating.
5
For wiring examples, refer to the following drawings.
4
Example
R1 N
P
Settings
Maximum solar panel temperature
If the temperature of the solar panel is above this value,
the solar pump station will stop or not resume pump
operation.
This setting will have a fixed value equal to or below
212°F (100°C), or it will be possible to put this value
equal to or below 212°F (100°C).
5
6
Solar pump station
Indoor: X7M
Field wiring
Solar pump station
Indoor: X7M
WARNING
The piping between solar panels, solar
pump station and solar kit shall be
copper piping and properly insulated.
The
piping
can
reach
temperature as the maximum allowable
solar panel temperature.
The piping between heating circuit and
solar kit connection shall be copper
piping, at least 1.64 ft (0.5 m) long and
properly insulated.
Due to heat conduction, the piping can
become very hot.
As the piping can become warmer than
123°F (51°C), all piping shall be properly
insulated to avoid any possible (injury)
burn.
All used parts shall withstand the
minimum
technical
mentioned
under
specifications" on page
Installation and operation manual
the
same
specifications
"Technical
15.
3
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