Westric SW Series, Installation, Operation And Maintenance Manual

Page: 9 / 20

76-5023-05 Page 9 of 20
Connecting Diagram
Once the sequencer is fixed to the wall, proceed to connect the cables that connect it to the air conditioning unit, to
the electrical panel and to the rest of the installation parts.
It is advisable to have a 2 pole breaker switch on the electrical panel from which the sequencer will be supplied with
220VAC.
All wiring connected to the sequencer must have a minimum gauge of 1.5 mm2 (AWG 15):
1 Terminal block for connecting to fire alarm control and/or phase monitoring relay
2 Terminal block for mechanical thermostat connection
3 Dry contact terminal block for failure output
Main
Panel
Unit
1
SW-303
Power supply 220V
2 x 1.5 mm2 + Earth
Power supply according to
Unit’s model
Power supply according to
unit’s model
1
1
2
Unit
2
3