Installation manual

module (LD11) as well as the Wall Switch (LW10) which may

also be used in a Comfort system setup.

Mains Supply

It is always advisable to check a property for the ability to transmit

X-10 signals reliably around the electrical ring-main using the

UR24/TM12U before specifying the use of X-10. Some buildings with

noisy mains supplies or appliances can produce a masking effect to

X-10 signals, also X-10 signals can attenuate over distance. Generally,

it is better to make sure that your Comfort CPU is supplied by the same

consumer unit/ring-main and same-phase which your X-10 modules are

working on although you can use X-10 on 3-phase installations with

phase couplers to take X-10 signals across from one phase to the next

using two FD10 modules.

(( The TW7223 X10 interface must be connected within the

Comfort Panel, the TW523 is connected outside. European

Panels have a suitable position for mounting the TW7223

interface above the mains transformer as shown below.

Figure 2.17 - TW7223 X10- Interface Positioning

Connection to Local Expansion Modules

There are two types of Local Expansion Modules:

8-zone with 8 outputs - Model LEM01

16-zone without outputs - Model LEM03 (Cannot be used with

SEP02)

The Local expansion modules are connected locally to the Comfort main

panel or Remote Expansion Panels via a short 10-way ribbon cable to

socket J5. The board is mounted within the main panel using the four

fixing posts and screws provided. To enable the 16-zone board, ensure

that Location 40 (Table 35) is set to a value of ‘32’ or ‘36’ if RGR02 is

fitted and then complete the usual zone programming method as with

Comfort Installation Manual

N L

TW7223

Interface

position

Transformer

FUSE

TW7223

Mains Connection

RJ11 Lead