Kronoterm HM-130 S1, Instructions For Installation, Use And Maintenance Manual

Page: 25 / 60

25
11 Irreversible flaps 27.1 Combined buffer tank with submersed buffer
tank for DHW
12 Safety valve of the DHW system 27.2 Buffer tank for DHW submersed in the buffer
tank
13 Expansion vessel of the DHW system 28 Biomass furnace
14
Irreversible flaps
29
Biomass furnace circulation pump
15 DHW system pressure regulator 30 Solar collectors circulation pump
16 DHW water filter at the inlet of the building 31 Three-way cooling switch valve
A Cooling connection - gas pipe C3 Modbus cable for communication between
internal and outdoor unit
B
Cooling connection - liquid pipe
C4
Expansion regulation TT 3003 - MD2 electrical
supply cable
C1 Internal unit electrical supply cable C5 Cable for communication between internal unit
and expansion regulation TT 3003 - MD2.
C2 Outdoor unit electrical supply cable
Certain elements are additionally marked with the designation of the electrical connection.
MD1 : A2
Designation of the connecting clamp.
MD1 - electrical connection of the element to the device
’s connecting terminal
.
MD2 - electrical connection of the element on the connecting terminal of the
expansion regulation TT3003 - MD2.
3.5.2 BUFFER TANK FOR DHW CONNECTION
CAUTION
Connect the buffer tank for DHW in accordance with the national and local regulations
in force. The space where the device, DHW buffer tank, etc. are installed, must have a
floor drain to allow water to drain in case of a spill.
CAUTION
Connect the DHW buffer tank so as to prevent galvanic cells and corrosion to form
because of the use of different materials. We recommend connections made of red
brass at least twice the length of the rated diameter of the connection.
CAUTION
The DHW buffer tank is intended for storing drinking water. The drinking water must be
in accordance with the national regulations on drinking water in force.
CAUTION
For normal operation of the Expansion vessel, it is necessary to perform proper
adjustments of the tank
’s working pressure. The settings have to be checked every 12
months.
3.5.2.1 Choosing the buffer tank for DHW
For reliable DHW heating, you need a DHW buffer tank which has a heat exchanger with
the appropriate surface. Consider the recommendations below.
Hydro module Min. surface of the DHW buffer tank heat exchanger
HM-140-S1 1,8 m
2
HM-130-S1 3.0 m
2
HM-180-S1 4.5 m
2
Choose the DHW buffer tank volume to meet the needs for comfort.