Rectify interference
6 720 643 196 (2010/02)
22
11.
Is a ceramic power resistor connected to
relay X52 on the inverter circuit board?
yes:
The resistor should have 16 ohm, replace if neces-
sary. Didn’t that help?
Æ
12
no:
The resistance must be 16 ohm.
B
Connect the resistor to X52.
Didn’t that help?
Æ
12
12.
Are the condensers connected to the
inverter circuit board?
IMPORTANT! The condensers may have
voltage left even if the machine is
switched off.
yes:
Are the condensers connected to TB-P2, TB-C1 and
TB-N1.
B
Compare the connection with the wiring diagram,
correct if necessary.
Didn’t that help?
Æ
13
no:
B
Connect the condensers on TB-P2, TB-C1 and TB-
N1.
Didn’t that help?
Æ
13
13.
Is (TB-N1)--(TB-P2) => 450-680VDC.
Is (TB-N1)--(TB-C1) => 225-340VDC.
Is (TB-C1)--(TB-P2) => 225-340VDC.
yes:
Æ
14
no:
Didn’t that help?
Æ
14
14.
B
Check the wiring between the inverter
circuit board and compressor.
Terminal block on inverter circuit board -
> Cable colour -> Terminal block on com-
pressor. TB-U -> black -> U TB-V -> brown
-> V TB-W -> grey -> W
yes:
Æ
15
no:
B
Replace wiring if burnt.
If the compressor does not run and the wiring is
incorrectly installed, the compressor is probably bro-
ken.
15.
Is the voltage between (TB-U)--(TB-V),
(TB-V)--(TB-W) and (TB-W)--(TB-U)?
yes:
Æ
16
no:
Inverter circuit board defective.
B
Replace inverter circuit board.
Didn’t that help?
Æ
16
16.
If a specific alarm code appears in the
rego window, see separate fault tracing
tree.
The heat pump does not run, troubleshooting the inverter section
Check
Action
Tab. 20
Summary of Contents for X Series
Page 1: ...Fault tracing tree X11 X15 6 720 619 265 18 1I 6 720 643 196 2010 02 ...
Page 26: ...6 720 643 196 2010 02 26 Notes ...
Page 27: ...6 720 643 196 2010 02 27 ...
Page 28: ......