Control Systems
V-72
2
2
Centralized control system
2-4. Operation mode selection switch (MCM-C200)
3) Installation
K1
K2
K3
K4
AUTO
HEAT
AUTO
COOL
RED
WHITE
BLUE
SMI
AUTO
13
HEAT OPT 1
Outdoor
Uint
COOL
1 1
2 2
33
K6
K6
➊
Connect MCM-C200 to Outdoor unit 1:1
❷ After setting the operation mode of MCM-C200, press K3 button to make outdoor unit reset (If compressor is
activating, outdoor unit will be reset automatically)
❈ Max. length between outdoor unit PCB and MCM-C200 :100m
Control example
OFF
Compressor
IDU 0
IDU 1
IDU 2
IDU 3
Transition to Heating Transition to Cooling
Transition to Heating
IDU 2 Heating by remote controllers
Now the complete system knows the Heating mode
IDU 0, IDU 3 Cooling by remote controllers
Cooling sustained under no heating
All cooling indoor units display the mixed mode
since IDU 2 triggered the Heating
Cool/Heat
Selecto
r
OFF ON
Compressor standby time
ON
Cooling
Auto
Stop
Stop
Heating
Stop
Cooling Heating
Cooling
Heating
Cooling
Mixed mode
Fan
Stop Mixed mod
e
No retracking and no indoor unit OFF during compressor standby time.
Compressor activation Retracking. All indoor units OFF
05-2_control systems(046~081) 3/6/08 14:02 Page 72
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