Midea V6R VRF Series User Manual

V6R VRF 50Hz
148
Midea
V6R
Series Service Manual
2.33 U31, U32, U33: Stop valve is not open.
Digital display output
Description
 U31: Liquid side stop valve is not opened.
 U32: High pressure gas side stop valve is not opened.
 U33: Low pressure gas side stop valve is not opened.
 All units stop running.
 Error code is only displayed on the master unit.
Trigger / recover condition
 Trigger condition:
U31: Pc_max ≥ 3.9MPa in heating operation.
U32: Pc_max ≥ 3.9MPa in heating operation.
U33: Pe_min < 0. 12MPa in cooling operation.
 Recover condition:
The stop valves are opened and system pressure recover to normal.
 Reset method: Manually restart.
Possible causes
 Stop valve is not open.
Procedure
U31, U32, U33
Check and open the stop valve.

Midea V6R VRF Series Specifications

General

Brand	Midea
Model	V6R VRF Series
Category	Air Conditioner
Language	English