3
B1
–
supply temperature sensor
VFD
–
frequency converter
T S2F
–
anti frost thermostat
B3
–
external temperature sensor
1Y1
–
damper actuator
ΔP –
pressure guard
S3F
–
back water temperature sensor
Y1
–
3-way valve actuator
M1
–
fan motor
M2
–
pump motor
1 - casing
2 - thermomanometer
3
–
circulation pump
4 - filter
5
–
3-way valve with actuator
Fig.1. Operation diagram
All is closed in the thermal casing made of EPP. There is two sizes of casing (“S” and “L”) for 9 sizes pump
group.
Fig.2. Structure of water pump group
1
–
tree-way valve with actuator, 2- pump, 3
–
thermomanometer, 4- ball valve, 5
–
ball valve with filter, 6
–
casing
Содержание WPG-25-070-10
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