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Installation – Glow-worm Ultracom2 cxi User Manual

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0020112601_02 - 10/12 - Glow-worm

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INSTALLATION

11.4 External accessories

e

Under no circumstances must any mains voltage

be applied to any of the terminals on the 24v

connection plug.

230

V

X17

X18

RT 24V

T° ext

BUS

BUS

24 V

1

2

3

4

Key

1 24V room thermostat connector

2 Ebus room thermostat connector or Ebus radio receiver

3 Outdoor sensor connector

4 Overheating safety connector for heating floor

• Fit external controls in accordance with the rules in force.

• When installing a non eBus controller, the link fitted to the

24V terminals (RT/24V) must be removed.

11.5 Testing the electrical connections

Carry out preliminary electrical system checks as below:

• Resistance to earth (<1 Ohm)

• Short circuit test (L-N)

• Resistance to earth (L-E)

• Polarity check