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I
NSTALLATION
2.4
Installing condensate drain
2.5
Connecting the unit to Modbus
en-14
The cooling of the air can cause condensation. The unit is fit-
ted with a drain tray(s) to catch condensation water.
1. Connect the connection point 1 (15 mm) to a drainage
system.
Caution:
c
Use a flexible connection. The drain tray must be
o
able to turn 90
when removing the exchanger.
Pay attention to the following installation criteria:
-
Make sure the drainage pipe has a drop of at least 1:50.
-
Fit the drainage pipe with a trap with dimensions as
shown in the illustration. Fill this with water before the
unit is used for the first time.
A
B
Caution:
c
The trap must always be filled with water.
2.5.1 Communication parameters
Standard values of the communication parameters for Mod-
Bus are:
COMMUNICATION PARAMETER
Baud rate
DATA
Parity
Stop bits
The turnaround time between the unit and Modbus is 4.2
msec.
The default value for the Modbus node address is 1.
Note:
n
You can modify the parameters via b-touch
menu > Maintenance > Modbus settings
via Modbus register addresses 460-464.
H
EAT RECOVERY UNIT
130 mm
70 mm
VALUE
9600
8
none
1
or
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