IntesisBox
®
BACnet
– RAC, FD, KX6 and KXR6 (VRF) series
User Manual r1.0 eng
URL
tel
http://www.intesisbox.com
[email protected]
+34 938047134
49/60
© Intesis Software S.L.U. - All rights reserved
IntesisBox
is a registered trademark of Intesis Software SLU
6
Connections and switches
Connect to the Remote Controller bus
Disconnect the Mitsubishi Heavy Industries system from Mains Power
Connect the interface to XY bus in any point of the bus. The XY bus is the bus that connects the AC indoor unit and
the wired remote controller, is a two-wire bus connecting terminals XY of both. This XY connection has no specific
polarity.
Connection diagram
If a Mitsubishi Heavy Industries remote controller (RC) is present and connected to the XY bus, there are two
configuration options:
•
If we want to use the RC as master, its PCB switch must be set as Master and the MH-RC-BAC-1 must be
configured as Slave.
•
If we want to use the RC as slave, its PCB switch must be set as Slave and the MH-RC-BAC-1 must be
configured as Master.
SW4
– Master/Slave settings
Binary value
b
1
…b
0
Decimal value
Switches
1 2
Description
0x
0
x
Slave in P1P2 bus (default value)
1x
1
x
Master in P1P2 bus
Please, check the configuration for the AC unit to ensure proper control of the AC unit according to its specifications.
Use
SW3
for the Celsius/Fahrenheit degrees selection and
SW4
for the Reference Temperature (Room temperature)
to be used. More information about it can be found on section
¡Error! No se encuentra el origen de la referencia.
.
SW3 - Celsius/Fahrenheit selection
Binary value
b
7
…b
0
Decimal value
Switches
1 2 3 4 5 6 7 8
Description
xxxx0xxx
0
x x x x
x x x
Celsius degrees (default value)
xxxx1xxx
1
x x x x
x x x
Fahrenheit degrees
Important
: Remember that switch changes only apply after an IntesisBox power cycle
