Ambirad AIRBLOC ACR Series, Instruction Manual, Page: 24 / 44

24
N Y B
Loa
d3
Lo
ad
2
Lo
a
d1
Lo N Md Hi
AIR 7V 0V A B Trip
R
Fan Motor
Sensor
ϑ
Overheat
BMS
BASE UNIT
(located in air curtain)
J1
The heater output is connected to the right hand side of
each terminal block marked "Load1", "Load2" and "Load3".
The fan output is connected to a 4 way connector marked
"N”, “Lo”, “Md” and “Hi".
The sensor input (air sensor) is connected to a 2 way
connector marked "AIR" on the base unit. The sensor is
not polarity sensitive.
The external thermal trip (volt-free contact) is connected to
a 2 way connector marked "Trip". The connection is not
polarity sensitive.
After removing link J1, the BMS pair can be used for
external time control via a pair of volt free contacts.
Terminal Description
Load1 Heater phase 1
Load2 Heater phase 2
Load3 Heater phase 3
N Neutral to fan
Lo Fan - low speed
Md Fan - medium speed
Hi Fan - high speed
AIR Air sensor (non-polarised)
AIR Air sensor (non-polarised)
Trip Ext thermal trip, n.c. (volt-free)
Trip Ext thermal trip, n.c. (volt-free)
BMS BMS off (volt -free)
BMS BMS off (volt -free)
Load3 Load2 Load1
4.11 Factory installed wiring. Electrically Heated with SmartElec control.