Roberts Gorden CTCU 32 Manual Do Utilizador

19 of 42

All heaters need a constant 230 V 50 Hz single 
phase supply connected to terminals L, N & Earth.

Polarity "L & N" must be correct. The voltage 
between neutral and earth should be 0 and never 
exceed 15 volts.

All heaters and controls must be correctly earthed. 

All external wiring must comply with the relevant 
local codes. Wire specification H05VV-F.

External controls must have the same constant 
230 V 50 Hz supply.

An isolator with a contact separation of at least 
3 mm on all poles must be installed adjacent to, but 
not attached to, the heater to disconnect all supplies 
to the heater and any remote control. This switch 
should be fused to 5 A.

The final connection to the heater should be made 
by flexible cable or conduit to the 7 pole plug on the 
inside of the heater using 1 mm

2

 cable on all 

models.

The heater is designed to be operated by controls 
installed remote from the heater. 

Controls to operate the burner must be connected 
between L

1

 and T

2

.

 
10.2.2 Positioning Room Thermostats or 
ROBERTS GORDON

A room thermostat or ROBERTS GORDON

®

  

control should be mounted on a wall or column at a 
height of approximately 1.5 metres from the floor to 
measure the ambient temperature. It should be clear 
of both cold draughts and the direct path of warm air 
from the heater.

When required, connect to L

1

 and T

2

 parallel to the 

room thermostat.

Locate within the heated space adjacent to the most 
vulnerable equipment that requires protection.

The fan will operate automatically providing there is 
a constant 230 V supply to the main terminals. 

A switch or control wired between terminals Y & T

1

 

in the terminal block will allow external control of the 
fan(s).

The fan may be controlled to operate continuously 
from an external control, with the burner cycling on 
and off, providing that the fan run-on at close down 
is not impaired.