iDM TERRA SWM 3-13 HGL P Technical Documentation And Installation Instructions page 33

TERRA SWM HGL P for active cooling and with Hygienik 2.0 for domestic hot water preparation
The heat pump manages next to the Hygienik 2.0 an additional cooling buffer.
In this scheme, there are two valves that switch the fl ow and return of the heat pump between Hygienik and
the cooling storage.
An additional valve will be used for switching between the heating circuit and the cooling circuit. The heat pump
operates in process reversal and cools the cooling buffer to the desired temperature.
Attention!
-Mount the dew point switch on a suitable location.
B40
T
Cooling buffer
• In cooling mode a dew point control via a roomstat (room sensor) and a dew point switch or
humidity sensor is necessary!
• During cooling mode of the heat pump it is not possible to load the upper area of the Hygienik.
(C) IDM ENERGIESYSTEME GMBH
OS
T
B32
B35
T
T
B33
Available as an accessory
M16 M73
P
T
B43
T T
B36
B34
TERRA SWM HGL P
Bore hole heat exchanger
Brine circuit
Installation instructions TERRA SWM
HC-module
internal available as accessory
B64
B63
T T
B54 B53
T T
M34
M33
M44
M43
Cooling A
valve
B
M61
P
B
Cooling
valve
A
M62
P
M62
B
Cooling
valve
A
Hydraulic diagrams
RE (A)
B31 B61
rH% T
HC (A)
B5
T
B51
T
M31
M41
M
Throttle
valve
B48
T
B41
T
M M 22 M M
B38 B38
T
Hygienik 2.0
(with layer separation plate)
HW
T
B1
CW
33