Johnson Controls MAHP18B21S - Figure 28. Wired Controller Connections

PMGB0406B rev.1
54
1. The DIP switch settings for the outdoor unit should be performed in accordance with the "Installation and
Maintenance Manual" for the outdoor unit.
2. Be aware that communication cable for the wired controller is required in these instances:
a. The following functions are set to the sub unit which is not installed with the wired controller.
Ɣ Remote ON/OFF function settings, (No.1, 2, and 3), (External Input / Output Function)
Ɣ Power supply ON/OFF functions, (No.1 and 2), (Function Selection)
Ɣ Prohibiting the wired controller after manual stoppage (External Input / Output Function)
Ɣ Group setting by the centralized controller
b. The combination of twin, triple, or quad is controlled by single wired controller.
c. The address for the indoor unit is changed from the wired controller.
NOTICE
(c) Wired Controller Connections between different Refrigerant Cycles
(b) Single Wired Controller for Individual Operation Setting
Outdoor Unit
A B
Outdoor Unit
Indoor UnitIndoor UnitIndoor Unit Indoor Unit
A B
A BA B
Individual
Simultaneous
(Thermo ON / OFF individually)
Individual
Wired
Controller
Wired
Controller
Wired
Controller
with DX-Kit
with DX-Kit with DX-Kit with DX-Kit
Outdoor Unit
Indoor Unit
A B
The communication cables
for the wired controller
is necessary.
Indoor Unit
A B
Wired
Controller
with DX-Kit
with DX-Kit
Ɣ Do not connect the power supply wiring and the communicaton cable into one terminal.
Ɣ The manual switchbox is required when communication cable is required.
Indoor Unit
Switchbox
S
Indoor Unit Indoor Unit Indoor Unit
Indoor UnitIndoor Unit
S
G
F
C
I
G
F
C
I
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
Figure 28. Wired Controller Connections
(Ins)DX-Kit4e-rev1.indd54
(Ins)DX-Kit4e-rev1.indd54
2016/11/2515:32:57
2016/11/2515:32:57