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Installation – Glow-worm Ultracom2 cxi User Manual

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0020085231_02 - 05/10 - Glow-worm

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11.3.2

230V permanent supply + 230V system

controls

a

All cables connected to the appliance should be

permanently fixed to the wall.

i

This appliance will not operate without a link or

system controls fitted.

24

V

4

5

6

7

2

1

3

Key

1 230V permanent supply

2 System controls

3 frost stat

4 Main board terminal block

FP = Frost stat 230V (switchable)

RT = Switch live (230V)

= Mains earth

N = Mains neutral

L = Mains live

5 Junction box

6 fuse

7 Double pole connector

• Connect the mains supply and system heating controls e.g.

room thermostat as described.

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

3

4

2

1

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.

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

INSTALLATION