Error On Ahu Kit Temperature Senor Open/Short - Samsung MCM-D201N Installation Manual

Trouble shooting

Error on AHU KIT temperature senor OPEN/SHORT

1. Checking method
Outdoor unit display
Description
Reason
Is the temperature sensor
connector of AHU KIT EVA IN/OUT
detached from PBA?
After detaching the temperature sensor connector
of AHU KIT EVA IN/OUT from the PBA, measure the
electrical resistance between both terminals.
At this time, does the resistance value
largely get out of the right table?
After replacing the PBA, operate the product again.
• Wired remote controller will display the same error shown in the outdoor unit.
NOTE
32
(EVA IN sensor OPEN/SHORT)
(EVA OUT sensor OPEN/SHORT)
When the temperature sensor part of AHU KIT is OPEN/SHORT
Loose contact between a sensor and PBA and defective sensor
No
Yes
No
Yes
After connecting the connector to PBA, operate
it again.
Temperature(°C)
70
60
50
40
30
20
10
0
-10
Yes
Since the temperature sensor of AHU KIT EVA IN/OUT
itself is defective, replace it.
Resistance(kΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0