
23
5.2 Typical Wiring Diagram
with
Optional Relay Interface Unit
Optional
Relay Interface Unit
in ABS enclosure mounted on top of Fume Hood to
allow up to external cable connections to be terminated.
Rated at 220V 5A
REFER TO
INSTALLATION
INSTRUCTIONS
BEFORE
CONNECTING
www.tel-uk.com
Made in England
TEL
TO REMOTE
RELAY
INTERFACE BOX
I/P1
I/P3
I/P2
15V
PSU
I/P
-
+
0-10V
O/P
1
R1
R2
R3
120VAC POWER
SUPPLY
(15VDC Output)
SM6 AIRFLOW
SENSOR
RJ11 PLUG IN
CABLE (2M / 6’)
R1,R2,R3
VOLT FREE RELAY
OUTPUTS
Max 5A 250VAC / 30VDC
0-10V RETRANSMISSION
OUTPUT
PLUG IN COMS
CABLE (2M / 6’)
RS485 COM PORT Connector
Modbus RTU or BACnet
(OPTIONAL)
GND
(A)+
(B)-
+VE
To PC or BMS
To OTHER AFA1000
UNITS
-
sw
+
sw
+
+
sw
+
-
R3
R2
R1
Sash High
I/P3
0-10
o/p 2
+V -V sw
prox
I/P1 I/P2
0 24v 0-10v
Volt Free Relays
(10A 120VAC AC1)
Econ
O/P
14 WAY RIBBON CABLE
RELAY INTERFACE UNIT