Haier MRV 5-RC VP1-112B Service Manual page 241

Each system can finish automatic networking debugging separately, as shown in the left debugging chart.
Note:
1. For the first time of debugging Smartlink wireless communication units, the air conditioner units must be
powered on separately, other IDUs without networking are forbidden to be powered on. The units finishing the
networking must be powered off and then other units can start networking in sequence. All the units can be
powered on till all of them finishing networking.
2.After finding all the IDUs, it needs to check the error rate of wireless communication system by ODU LED
display area. The checking method of the error rate is shown in table below. 0% indicates the best communication
quality and 20% or less can ensure the normal running of the units.
SW1 SW2 SW3
1 2 2
3.When error rate is very high, it is necessary to confirm whether the repeater is added in accordance with the
standard requirement (one repeater needs to added through per wall).
Function
The first two digits show the percentage of
inconsistency between the IDU and the E2
quantity. The last two digits indicates real-
time IDU quantity.
For example, 0522 indicates 22 sets of real-
time IDUs and 5%
of inconsistent communication percentage
between the IDUs and the E2 quantity.
When debugging the Smartlink, if multiple sets of systems are
powered on at the same time, you need to clear the wireless
module information acoording to the following introduction:
1.Clear Master wireless module information
Powering on the ODU, there are three rotary dial switch on
the PCB board and SW1/SW2/SW3 are rotated to 1/1/1
respectively. Then turn the ODU PCB board BM2-5 dialing
code from OFF to ON, which can clear the information of slave
wireless module and repeater stored in the master wireless
module.
2. Clear Slave wireless module and Repeater information
There is a built-in button for clearing the pinhole on the slave
wireless module and the repeater, as shown in the left figure.
Before the slave wireless module and repeater are powered
on, use the fine pin to hold the button and then power on the
module. Two green lights on the module will flash at the same
time, and the information can be cleared about 3s later.
238
LED Display LD1~4