Gree GMV-Pdm450W/NaB-M

DC Inverter Multi
VRF Service Manual
133
4) When the qty of outdoor units is more than 2 and the the qty of indoor units is not more than (N×16)sets, there is
no need for adding patch board. The qty if indoor units connected by each patch board shall be not more than 16 sets. The
corresponding interface port of patch board is CN1.
�
22
No.1 No.2
No.n(16max)
Indoor to indoor communiction 2
Communication between
the indoor and the outdoor
Qty of indoor unit is less than or equial to 16
�
22
No.1 No.2
No.n(16max)
Indoor to indoor communiction 3
Communication between
the indoor and the outdoor
Qty of indoor unit is less than or equial to 16
A
B
A
B
123 4
ON DIP
12
ON
123 123 123
ON DIPONDIP ON DIP
12
ON
NO.1 MODULAR
A
B
A
B
A
B
1234 12 12
A
B
A
B
A
B
A
B
A
B
�
44
2
2
2
22
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 DIPONON
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
Added pinboards