Midea MV6-R450WV2GN1 Service Manual

V6R VRF 50/60Hz
146
Midea
V6R
Series Service Manual
2.32 U21, U22, U23: Ambient temperature is out range of test operation.
Digital display output
Description
 Ambient temperature is out range of test operation.
 All units stop running.
 Error code is only displayed on the master unit.
Trigger / recover condition
 Trigger condition:
After entering the test operation, the master outdoor unit judges whether it is suitable for the trial operation based on
the average value of the detected T1 and the outdoor ambient temperature T4. If it is not in the unsuitable zone, make
the cooling self-test and heating self-check selection according to the following table.
If it is out range of test operation, the outdoor unit displays the fault code "U21 or U22 or U23".
Item
Conditions
Code
Not suitable for outdoor
temperature
Minimum outdoor temperature ≤ -24.5
o
C or Minimum outdoor
temperature ≥ 48
o
C
U21
Not suitable for indoor
temperature
Indoor average temperature ≥ 35℃
U22
Not suitable for outdoor
temperature and indoor
temperature
1. Indoor average temperature ＜ 0
o
C ， Minimum outdoor
temperature ≥ 5
o
C
2. Indoor average temperature ≥0
o
C and Minimum outdoor
temperature - Indoor average temperature ≥ 30
o
C
U23
 Recover condition:
Press the OK key for 5 seconds to exit the test operation.
 Reset method: Manually restart.

Midea MV6-R450WV2GN1 Specifications

General

Brand	Midea
Model	MV6-R450WV2GN1
Category	Air Conditioner
Language	English