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452237.66.56 · FD 9912
EN-7
SI 85 TUR
English
Fig. 7.3:hydraulic 4-way reversing valve HW flow and return to the left
Fig. 7.4:hydraulic 4-way reversing valve HW flow and return down*
* With the HW flow installation versions pointed downwards, a suitable purging
facility must be installed in the flow pipe or in the subsequent heating circuit.
Fig. 7.5:hydraulic 4-way reversing valve HW flow and return to the right
Fig. 7.6:hydraulic 4-way reversing valve HW flow and return down*
"0" -- cooling operation
"1" -- heating operation
"
" -- Electrical connection side actuator
" " -- Input heat pump
V 1
"
0
"
"
1
"
E
V 2
*
"
0
"
"
1
"
E
V 3
"
0
"
"
1
"
E
V 4
*
"
0
"
"
1
"
E
E