Sc3Mz Version Wiring Connections - Ambirad SmartCom 3 Owner's Manual

2.3 SC3MZ WIRING CONNECTIONS
41 40 7 8 9 25
Terminal No. Connection
41 Vent 1 relay input (¾ Hp/low fan)
40 Vent 1 relay output (¾ Hp/low fan)
7 Heat 2 relay input (2 stage)
8
Heat 2 relay output (2 stage)
9
Burner reset output
25 Vent 3 relay output (damper)
14 Vent 2 relay output (high fan)
5 Time relay output
6
Heat 1 relay output (1 stage)
1/L Live supply input
2/N Neutral supply input
10 Flame failure input
S/R0
Remote room temperature sensor 'A'
S/R1
Remote room temperature sensor 'B'
D0 Remote duct temperature sensor 'A'
D1 Remote duct temperature sensor 'B'
O0 Outside air temperature sensor 'A'
O1
Outside air temperature sensor 'B'
B1 Remote on input (BMS ON input)
B0 Remote common (output to BMS)
B2 Remote frost input (door interlock)
C2
Comms connection 'A' input/output (Networking)
C0 Comms connection 'GND' output (Networking)
C1 Comms connection 'B' input/output (Networking)
66 Channel 1, 0~10V output (GM44)
64
Channel 1 and 2 common output
20 Channel 2, 0~10V output (damper
A terminal block is supplied to enable multiple
connections to B0/B2 as detailed in product
wiring connections. 0-10V outputs and remote
switch inputs should be connected by 18Awg
cable of maximum length 325ft. The remote
temperature sensor may be placed at a
distance of up to 325ft (maximum) from the
control unit, using shielded 18Awg cable to
! FUSE RATING
LIVE
NEUT T
14 5 6 1/L 2/N 10
improve noise rejection. Connect the shield to
terminal B0. Master-slave communication is by
shielded twisted pair cable, RS 485 compatible,
such as Belden 9841 (or Equiv). Maximum
overall system length is 1650ft. Connect shield to
B0 and C0. All sensor and signal wiring should
be kept separate from mains wiring to minimise
noise pick-up.
6
!
S/R0S/R1 D0 D1 O0 O1 B1 B0 B2 C2 C0 C1 66 64 20
Wire capacity
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
12 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg
14 Awg