15
INDOOR UNIT ELECTRIC BOX
A1
A2
4.7 Wiring the Icebox to a BX3 & BX5 heater
Terminals ‘
A1
’ & ‘
A2
’ are not polarity sensitive and the connecting conductors shall be routed through the
grommet adjacent to the terminal block (C Y G W R TW1 TW2). The end panel will need to be
temporarily removed to assist with routing conductors back to the control board.
Diagram 18:
BX5 Wiring circuit for NG-2A to Icebox and Networker
Diagram 19:
BX3 Wiring circuit for HCDSI24 to Icebox and Brivis Programmable Thermostat
Heater cabinet wall
Grommet
Icebox PCB relay connections
Y
G
R
Electronic Thermostat
W
Rc
EARTH
For connection refer to
installation instruction
supplied with “
B063033
Loom add-on relay
classic”.
Brivis Networker
INDOOR UNIT ELECTRIC BOX
M
Fn
A1
A2
Heater cabinet wall
Grommet
Icebox PCB relay connections
Heater Parameter “H01 ID07:5”
24VAC
NG-2A
G W R
Electronic Control Module
C Y
TSTAT
TW1 TW2
ZONE /
ADD-ON
ZONE A
ZONE B
516 Zone Module
ZONE B
ZONE D
Refrig
ZONE C
ZONE A
N/O 0V N/C N/O 0V N/C
N/O 0V N/C N/O 0V N/C
Add-On connections (A1 &
A2) at ‘
516 Zone Module
’
(B023178).
Add-On connections (A1 &
A2) at Brivis Programmable
Thermostat and CDU for
earth. For ‘G’ connection
additional relay is required
(B063033)
Note:
Early model Buffalos may have on board provisions for add-on cooling. For more information contact
the Brivis Technical Support Group (TSG) on 1300 361 295.
