Viessmann VITOTRONIC 100 GC1B Service Manual download pdf (Page 56)

Installation

Connection of Boiler Return Mixing Valve or Isolation/Modulating Valve

(VD2/VD2A/CT3 only)

1 120V or 24V Valve Adaptor

2 DIN rail in connection enclosure

3 aBH Terminals

120V Valve Adaptor

Rated voltage: 120 VAC

Rated current: max. 0.1 FLA

Recommended connection

wire size: AWG 14

Part No. 7134 560

24V Valve Adaptor

Rated voltage: 24 VAC

Rated current: max. 0.15 FLA

Recommended connection

wire size: AWG 14

Part No. 7134 559

Operating time:

5 to 199 sec. selected via coding

address “40”.

1 120V Valve Adaptor

2 120V valve actuator

1 24V Valve Adaptor

2 24V valve actuator

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

(see page.37).

5. Connect black wire of the

adaptor to connection aBH on

the DIN rail

- Terminal 8,9 or 10.

6. Connect valve actuator wires

to the adaptor terminals as

shown on figures.

5351 338 v1.6

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 131 132

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Viessmann VITOTRONIC 100 GC1B Service Manual Page 56