Danfoss C37 User's Guide download pdf (Page 12)

Installation

Electrical connections -

230 V a.c. - in general

12a

230 V a.c. connections - without safety thermostat

Optional

P2 / M2*

For the heating systems 2, 4, 5 and 7 it must be determined

whether the actuator is to be controlled by means of the

terminals 6 and 7 (M2) or the terminal 11, cf. section 10.

Terminals 6 and 7: Only control valves with 3-point control

Terminal 11: For change-over valves ON / OFF

Establish these jumpers:

1-5-8-10-12-14

and jumper 2 to common N-terminal.

If an ECA 80 module is to be applied, the jumpers 14-26-29

must be established additionally.

230 V a.c. connections - with safety thermostat

Optional

This circuit diagram is only valid if Danfoss actuators are used

Establish these jumpers:

1-8-10-12-14

Safety thermostat:

4, 5 and 10 with ST- (safety thermostat)

and jumper 2 to common N-terminal.

If an ECA 80 module is to be applied, the jumpers 14-26-29

must be established additionally.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 77 78

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Danfoss C37 User's Guide Page 12