Service Manual

Table Of Contents
U-Match Series DC Inverter Service Manual
34
When there is a malfunction during operation, error will be displayed on the temperature displaying
zone of LCD. When several malfunctions occur at the same time, these error codes will be displayed
circularly.
When there is a malfunction, please turn off the unit and ask the professional for maintenance.
For example, E1 means high pressure protection during operation.
Figure 2-6-1
7 CENTRALIZED CONTROLLER
7.1 Smart Zone Controller
7.1.1 Function
The smart zone controller can directly control up to 16 sets of indoor units in a control network and is
available to check the running status of any unit through the LCD, including running mode, timer, fan speed,
centralized control and shielding setting etc.
PE
Temperature excursion protection
PL
Low voltage protection of bus bar
PH
High voltage protection of bus bar
PU
Charging circuit malfunction
PP
Abnormity of input voltage
ee
Malfunction of outdoor drive memory chip