GMV5 Home DC Inverter Multi VRF Units
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3.3.1.5 Disassembly
Fig.3.9 Disassembly of Wired Controller
3.3.2 Debugging
3.3.2.1 Set Master Indoor Unit
Under Off status, long press "MODE" button for 5s to set the corresponding indoor unit of
wired controller as master indoor unit. When it is successfully set, "MASTER" icon will light up.
Note:
(1) If master indoor unit already exists in the network, you can also set the other unit to be a
master unit. In this case, the original master unit will become slave unit.
(2) Only one master indoor unit is allowed in a network. If several units are set to be master
units, system will automatically designate the unit with the smallest project number as master unit.
3.3.2.2 User Parameter Query
User parameters can be queried under power-on or power-off status.
(1) Press and hold "FUNCTION" button for 5 seconds to enter the interface of user
parameter query. ―C00‖ is displayed in temperature zone and ―Check‖ icon is on;
(2) Press ―▲‖or ―▼‖ button to select a parameter code.
(3) Press ―SWING/ENTER‖ button to return to the previous step until exiting the interface of
parameter query.
The user parameter query list is as below:
Table 3.1 List of User Parameter Query
Parameter setting
ingress
Display mode:
Timer zone displays the project number of current indoor unit.
Note: If current HBS network consists of several indoor units,
then only the smallest project number will be shown.
Project number
query of indoor unit
and location of a
faulty indoor unit
1-255:
Project
number of
online indoor
unit
Operation method:
Enter query: Press "MODE" button in "C01" status to enter the
interface of indoor unit project number query. Press "â–²" or "â–¼"
button to select an indoor unit.
Display mode:
Temperature zone displays the error of the current indoor unit
(If there are several errors, they are circularly displayed every
3 seconds).
Timer zone displays (project number conflict C5 error) / project
number of the current indoor unit (numbers are arranged from
small to large).
Special operation:
After user presses the "MODE" button to enter project number
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