Operating Instructions and Installation Instructions

Edition: 02 / 2015 Page 33 / 56
VARMAX TWIN - Installation, Use and Maintenance
C. CUSTOMER'S ELECTRICAL CONNECTION
Generator No. 1:
L NY1 NY2L NL NL N
QX2 QX3 QX1 AUX2 AUX1
BX2
Gnd
BX3
Gnd
B3
Gnd
B9
Gnd
H1
Gnd
H5
Gnd
230 VAC 50 Hz
power supply
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Alarm relay
0 to 10V temperature
analogue input
DB MB
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Isolating
valve Q1.1
TWIN B10 output
sensor
INFORMATION:
If the isolation valve is not equipped with an automatic reset valve, connect
the Q1.1 isolating valve's closure contact to Y2.
LPB bus
Generator No. 2:
INFORMATION:
If the isolation valve is not equipped with an automatic reset valve, connect
the Q1.2 isolating valve's closure contact to Y2.
Diagram: VX211
page 2 / 6
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Isolating valve end
of run