Accessories - York YLCA Series Technical Information

Accessories

Remote terminal
This accessory allows remote control and supervision of the
air conditioning unit (up to 1040 m.). Functions are the same
as the standard control panel keyboard. This remote terminal
is compatible with said keyboard, and the air conditioning unit
can be accessed from both devices. For this application, it
must be connected to the system by means of the RS485
serial line connection accessory.
Set Set
Prg
Wiring
Connect the RS485 serial device (separate accessory) to the RJ12 power supply outlet (included with the remote terminal)
and to the electric panel keyboard supervising connection, by using shielded cable. Power terminals G-G0 by means of a
transformer and a 250mAT fuse as per the diagram enclosed. Carry out connection between power supply RJ12 and the
remote terminal, using the telephone cable supplied (80 cms.). This cable can be replaced by a longer cable of up to a
maximum of 40 m.
Attention:
- Use safety transformers only (3VA, class 2).
- For safety purposes, a 250mA slow fuse should be inserted in series with the G terminal.
- Do not ground transformer secondary.
Maximum distance to RS485
Speed
Cable characteristics
Cable section
Capacity per metre
156
1
2
Sel
3
4
Wall-mounting
For wall-mounting, the rear support (A) must be fastened to
a standard three-switch modular box.
- Fasten the rear of the casing to the box by means of the
two round head screws.
- Connect the telephone cable.
- Lean the control unit on the rear casing and fasten by
means of the two flat head screws (B).
- Fasten the front panel by applying slight pressure.
1 km. (insert a 120-ohm 1/4W resistor in RS485)
19.200 bauds
2 stranded cables with shielding
AWG22 (0.35 mm²)
>90pF/m (for example. BELDEN 8761-8762 cable)
A
B
53