Connecting Actuators - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Installation Sequence

Connecting Actuators

Legend
A 24V Mixing Valve Adaptor
B DIN Rail (in junction box)
C 24V Valve Actuator
D Valve
120V Valve Adaptor
Rated voltage:
Rated current:
Recommended connection wire size: AWG 14
24V Valve Adaptor
Rated voltage:
Rated current:
Recommended connection wire size: AWG 14
Operating time: 5 to 199 sec. selected via coding
address "40".
Available connections
gS A1 Motor for 3-way mixing valve, primary store system
gS M2 For heating circuit 2
gS M3 For heating circuit 3
Rated voltage:
Rated current Max.:
Motor runtime for
3-way mixing valve:
42
120VAC
max. 0.1 FLA
24VAC
max. 0.15 FLA
120V~
0.1A~
10 to 255 sec, adjustable via
coding addresses "6A" in
the"DHW"group, "C3" in the HC2
group and "C3" in the HC3 group.
Vitotronic 300, GW2B Installation and Service
Legend
A 120V Mixing Valve Adaptor
B DIN Rail (in junction box)
C 24V Valve Actuator
D Valve
1. Disconnect power to control.
2. Install 120V or 24V valve adaptor on DIN rail inside
connection enclosure.
3. Insert the plug gS into socket gS on the control.
4. Fasten cable with tie.
5. Connect black wire of the adaptor to terminals 8,9 or
10 on the Din rail.
6. Connect valve actuator wires to the adaptor terminals
Refer to the mixing valve adaptor Installation
Instructions for additional information.