I-UDSA-UK (02-19) PN 06 00116 UDSA R3, page 12
WIRING DIAGRAM (for illustrative purposes)
1-Phas
e
230v 50H
z
L
N
Power Supply
Mains Isolator-
Must be installed within 1 metre of the appliance
1-Phas
e
Permanent Mains Supply
External Controls
SmartCom3
Other Controls
*IMPORTANT* Please remove 'plug-in' jumper
C2
C1
C0
S/ R1
S/ R0
D1
D0
B2
B0
B1
'ON'
'OFF'
B.M.S. or Remote Switchin
g
C2
C1
4
L
9
C
Fan Only Function
Lockout Reset
Master/Salve Connections
(Network version only
)
Optional Thermistor
Discharge Duct Sensor
Optional Thermistor Room or Return Ai
r
Duct Sensor
Heater Specification: UDSA V4 - E Series Modulating Burner Control (Brahma TC340A
)
Legend:
Heater Terminals
Controls Terminals
Notes:
1.
Link wires MUST be fitted where show
n
solid.
2.
Terminals shown may not be in numerical order. Unused terminals ma
y
not be shown at all
.
3.
1-Phase supply cable 2.5mm² minimum
.
4.
Controls cables 0.75mm² for up to 200 metre run.
5.
SmartCom sensor & remote 'on' us
e
6A screened mains cable up to 100 metre run.
6.
SmartCom master-slave networ
k
communication by screened twisted pair cable. (e.g. Belden 9841) Connec
t
screen to terminal C0
.
7.
Fuse rating must be sufficientl
y
sized to handle heater & moto
r
loadings
.
NEUTRA
L
LIVE
10
N
Lockout Lamp
(240v)
L
N
2
1
41
4
40
REZNOR
OT
C
91
0
64
66
C
9
10
64
66
64
66
Remote Enable
(0-10VDC)
OT
OT
OT
0-10
V
