Wiring diagram
：
Note: Be sure to connect all the wires as per the wiring diagrams and keep it away from water, mud
and other material so as to prevent the unit being spoiled!
24VAC
H7711
A/AN
L
N
OPEN
CLOSE
Floating Control
Cooling/Heating
RS
┴
Input
B
A
┴
~
COM
VO
VC
TR
Modbus
A
B
Input
Remote Sensor
24VAC
H7711
B/BN
L
N
Modulating Control
Cooling/Heating
RS
┴
Input
B
A
┴
~
TR
Modbus
A
B
Input
Remote Sensor
M
0-10V
/4-20mA
V+
┴
~
24VAC
H7711C/CN
L
N
OPEN
CLOSE
Floating Control
Cooling/Heating
RS
┴
Input
B
A
┴
~
COM
LOW
MED
HI
L
VO
VC
TR
Fan
Modbus
A
B
Input
Remote Sensor
24VAC
H7711D/DN
L
N
Modulating Control
Cooling/Heating
RS
┴
Input
B
A
┴
~
LOW
MED
HI
L
TR
Fan
Modbus
A
B
Input
Remote Sensor
M
0-10V
/4-20mA
V+
┴
~
24VAC
H7711E/EN
L
N
OPEN
CLOSE
Modulating Control
Heating
Floating Control
Cooling
RS
┴
Input
B
A
┴
~
COM
LOW
MED
HI
L
CO
CC
TR
Fan
Modbus
A
B
Input
Remote Sensor
M
0-10V
/4-20mA
H+
┴
24VAC
H7711F/FN
L
N
OPEN
CLOSE
Modulating Control
Cooling
Floating Control
Heating
RS
┴
Input
B
A
┴
~
COM
LOW
MED
HI
L
HC
TR
Fan
Modbus
A
B
Input
Remote Sensor
HO
M
0-10V
/4-20mA
C+
┴
HERZ Armaturen Ges.m.b.H.
A-1230 Wien, Richard-Strauss-Strasse 22,A-1230 Vienna, Austria
.
All speci
fi
ca
ti
ons and informa
ti
on within this document are re
fl
ec
ti
ng the informa
ti
on available at the
ti
me of going to print and meant for informa
ti
onal purpose only. Herz Armaturen
reserves the right to modify and change products as well as its technical speci
fi
ca
ti
ons and/or it func
ti
on according to technological progress and requirements. All diagrams are
indica
ti
ve in nature and do not to be complete. It is understood that all images of Herz products are symbolic representa
ti
ons and therefore may visually di
ff
er from the actual product.
Colours may di
ff
er due to prin
ti
ng technology used. In case of any further ques
ti
ons don’t hesitate to contact your closest HERZ Branch-O
ffi
ce.
24VAC
H7711 I/IK
L
N
OPEN
CLOSE
OPEN
CLOSE
Floating Control
Heating
Floating Control
Cooling
RS
┴
Input
B
A
┴
~
COM
LOW
MED
HI
L
CO
CC
HO
HC
TR
Fan
Modbus
A
B
Input
Remote Sensor
24VAC
L
N
Modulating Control
Heating
Modulating Control
Cooling
RS
┴
Input
B
A
┴
~
LOW
MED
HI
L
TR
Fan
Modbus
A
B
Input
Remote Sensor
M
M
0-10V
C+
/4-20mA
┴
0-10V
H+
/4-20mA
┴
~
H7711K/KN
4
