11
HT 6Split
HT 12Split
Chapter 4 |
Pipe connections
The operating principle of the 2-pipe system is to
use the same installation for cooling operation as
for heating (Diagram of 2-pipe cooling operation). In
the 2-pipe system, the control mechanism operates
all components of the system i.e. GP10, expansion
The operating principle of the 4-pipe system is to use
separate heating and cooling circuits. In the 4-pipe sys-
tem, a cooling tank is required. The BT64 sensor should
be placed in the buffer vessel or on the cooling flow
Diagram of 2-pipe cooling operation
Diagram of 4-pipe cooling operation
modules (additional heating/cooling circuits) etc. Se-
lection of the 2-pipe system can be found in the SER-
VICE section, menu 5.2.4.
pipeline. BT64 is connected at the AUX inputs. Selec
-
tion of the 4-pipe system can be found in the SERVICE
section, menu 5.2.4.
XL10
XL1
XL2
-EB101
-BT1
BA-SVM 10-200
-GP11
P
XL18
XL19
HS1 -BP4
-BT15
-BT3
-GP12
-BT25
-QN12
-BT63
-BT71
-QN10
-BT7
-BT6
P
-BT2
-BT3
-QN11
-GP20
AA25
EQ-BT25/BT64
-BT12
XL10
XL1
XL2
-EB101
-BT1
-BT64
BA-SVM 10-200
-GP13
P
XL18
XL19
HS1 -BP4
-BT15
-BT12
-BT3
-GP12
-BT25
-QN12
-BT63
-BT71
-QN10
-BT7
-BT6
P
EQ-BT25/BT64
-GP11
HT 6Split
HT 12Split
HT 6Split
HT 12Split
