4.8 Hydronic unit diagrams - Cold only unit
4.9 Flow Switch
The flow switch must be present to ensure shutdown of the unit if water is not circulating.
It has to be installed in a duct rectilinear part, not in proximity of curves that cause turbulences.
Electrically connect the flow switch at the inlet arranged on the XC terminal block.
The flow switch must be set to the minimum reachable flow rate.
A
!
A
A > 5 x Ø
Ø
B < A
A. minimum distance
11
USER SIDE/
COLD
Standard
unit
(Std)
Unit
with VA
(VARYC)
Unit
with 1 ON/OFF pump
(HYGC1)
Unit
with 2 ON/OFF pumps
(HYGC2)
Unit
with Hydropack
(2PMC)
SOURCE SIDE/
HOT
Unit
with Hydropack
(2PMH)
Unit
with 2-way modulating valve
(VS2MH)
Unit with 2-way modulating valve
for high DP (V2MHP)
Functionalities
Diagram hydronic assemblies - Cooling only unit
SOURCE SIDE/
HOT
Standard
unit (Std)
Unit
with VA
(VARYH)
Unit
with 1 ON/OFF pump
(HYGH1)
Unit
with 2 ON/OFF pumps
(HYGH2)
Summary of Contents for WSH-XSC3
Page 45: ...8 14 Compressor replacement 45...
Page 46: ...8 15 Exchanger replacement 8 16 Pump replacement 46...
Page 47: ...9 Accessories 9 1 Antivibration 47...
Page 48: ...48...
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