Gree CN851W1000, Service Manual

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132
DC Inverter Multi
VRF Service Manual
3) When the qty of outdoor units is more than 2 and the the qty of indoor units is not more than 16 sets, the indoor to
outdoor communication is realized by connecting one indoor unit to a patch board of one outdoor module.
A
B
A
B
1 2 3 4
ON DIP
1 2
ON
1 2 3 1 2 3 1 2 3
ON DIP ON DIP ON DIP
1 2
ON
NO.1 MODULAR
A
B
A
B
A
B
1 2 3 4 1 2 1 2
A
B
A
B
A
B
A
B
A
B
�
4 4
2
2
2
2 2
2
A
B
A
B
4
NO.2 MODULAR
Inverter drive plate
inside the unit
Inverter drive
plate inside
the unit
Capacity code SW1
Qty code
SW2
Address
code SW3
ON DIP ON ON
Capacity code SW1
Qty code
SW2
Address
code SW3
Mian board
of out unit
Mian board
of out unit
Communication
inerface
Communication
inerface
Communication
inerface
Communication
inerface
Communication
inerface
CN11
CN12
CN13
Communication
inerface
CN11
CN12
CN13
CN16
CN17
CN18
Communication
inerface
CN16
CN17
CN18
CN1 or
COM-OUT3
CN3
CN2
Communication
inerface
Communication
inerface
CN3
CN2
CN1 or
COM-OUT3
CN1
Communication
inerface
Communication
inerface
CN3
CN2
CN1
Communication
inerface
CN1
Address code S2 Address code S2 Address code S2
Pinboard 1 Pinboard 2
Pinboard 3
No.1 No.2
No.n(16max)
Indoor to indoor communiction 1
To next
modular
Communication between
the outdoor and the indoor
Qty of indoor unit is less than or equial to 16
It is acceptable to connect
with pinboard of other
module.