I
NSTALLATION
A
IR
HEATER
en-34
en
2.10 Installing the
b-touch
control panel
For the NOZ
2
air heatervarious control units are available.
This chapter describes the installation of the
b-touch
control
panel, which is used on units having an automatic control (type
Auto).
2.10.1 Special points regarding the control panel
Positioning
• You can fasten the control panel either to the wall or to a
standard junction box.
Cabling
Note:
n
Take the following into account, otherwise errors
may occur:
- The control cable between the control panel and the
(first) connected unit may not be longer than 50
m(165 ft.).
- Keep control cables away from electromagnetic fields
and interference sources such as high-voltage cables
and fluorescent light starters, for example.
- Lay the control cables out straight or roll them in a
bifilar coil by folding cables in half before rolling
them. As a result, the magnetic fields will cancel each
other out to an important extent.
Note:
n
Use Biddle control cables only. Standard modular
telephone cable is NOT suitable.
Multiple units operated from a single control panel
• A maximum of 10 ‘Auto’ units can be connected to a sin-
gle control panel. And with ‘Auto’ unit, 4 ‘Basic’ units.The
units are thereby daisy chained.
Caution:
c
Units with differing capacities (type 25 and type 50)
cannot be combined.
Caution:
c
Only with NOZ
2
V (ventilation) units:
Units
with automatic control (Auto) cannot be connected
to units with a basic control (Basic).
