Ambirad AIRBLOC ACR Series, Инструкция по эксплуатации, Страница: 23 / 44

23
BMS AIR
BASE UNIT
(located in air curtain)
Lo
a
d
2
Lo N Hi Md
N
Trip A B 0V 7V
Y
R
Lo
a
d
1
B
Lo
a
d
3
Screw
terminals
J1
Remove link J1 for
external time switch
PROGRAM PANEL
(rear view shown)
415V 50Hz
Mains Supply
Chassis
Earth
A B 7V 0V
Screw terminals
Terminal
Description Cable
7V Supply to remote unit
Belden
8132
0V Supply to remote unit
B RS485 Comms to remote unit
Belden
8132
A RS485 Comms to remote unit
BMS BMS off (volt free)
BMS BMS off (volt free)
Terminal Description Cable
N Neutral 6mm² max
L1/R 3 phase supply 6mm² max
L2/Y 3 phase supply 6mm² max
L3/B 3 phase supply 6mm² max
Interconnecting Wiring
The program panel is connected to
the base unit via a set of 4 way re-
movable connectors marked "7V”,
“0V”, “B” and “A". Interconnecting
wiring is via 2 pairs of Belden 8132 cable as
shown in the table below.
Max length 50m. It is
recommended that this control cable is run sepa-
rately within its own trunking to avoid external
interference.
Protection
There are two high speed fuses on the base unit to protect the switching devices for the heater. External
circuit breaker with the appropriate rating should be installed for the protection of the installation.
4.10 Installer wiring diagram Electrically Heated with SmartElec control.