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THE
ENERGY
FAMILY
(C) IDM Energiesysteme GmbH
Installation instructions TERRA AL Twin
27
1
2
3
4
5
T
T
M
A
B
M
M
A
B
A
B
P
T
T
T
rH%
B34
B33
T
T
T
M
FIL
B
A
M
T
M
T
T
T
M
B54
B64
B53
M44
M
M
M43
M34
M33
B63
T
TERRA AL Twin P
reversible
OS
HW
CW
RE (A)
HC (A)
FS
Note: This is only a tentative suggestion for installing an IDM heat pump in the heating system. This suggestion replaces no
professional planning of an e
x
ecuting companie! On part of IDM-Energiesysteme can no warrenty be taken concerning the
function of the whole system!
Cooling buffer
Hygienik
HC-modul
internal
electrical cabinet
Buffer
Throttle
valve
M41
M31
B51
B61
B31
B42
B41
B41
B41
M22
B1
M63
M62
B45
M61
B
B
B40
B32
M73
M62
B38
B14
If the TERRA AL Twin has to work also in cooling mode, a cooling buffer has to be integrated.
An air humidity sensor resp. a dew point sensor has to be installed to monitor the dew point.
Heating connections
H
ea
ting co
nn
ec
tio
n
s
5.6. TERRA AL Twin cascade system with Hygienik without layer seperate plate and heating and cooling buffer
The TERRA AL Twin heatpump is able to work in cooling mode too. For every type of cooling system a cooling
buffer is needed.
For safety reasons an air humidity sensor resp. a dew point sensor has to be installed to monitor the dew point.
In the heating return the included
fl
ow switch must be installed before the heat pump.
For the TERRA AL 24 and 32 Twin it is neccesary to install a separate Hygienik and a separate Heating buffer .
