Samsung DVM PLUS III Technical Data Book page 695

05-4~6_control systems(142~171
4) Installation
External contact line wiring
No-power
contact signal input
Ex)Sensor, Card-key, Timer
Indoor unit PCB
K9 K10 K11 K12
N N N N o o o o t t t t e e e e
• External operation input load :5VDC/5mA.
• The length of wiring between MIM-B14 and external control equipment is 100 m max.
• To control by external signal, K11 switch of indoor unit's PCB must be set to "OFF".
• After installed,the first operation will be conducted with Auto mode, Set temp. 24 °C, Auto Fan speed.
5) Control
Control timing chart
External contact
input
Indoor unit
operation
❈ Control priority
External contact control = Remote controllers
(If Centralized controller is connected, control priority will be dominated by centralized control priority level.)
3/6/08 14:09 Page 163
Indoor unit thermo
ON/OFF signal
CN83
Connect
wire
CN81
Close Open
ON OFF
Operation
delay
Error signal
output
220VAC, 3A
Close
ON OFF
ON control
by remote controllers
Open
ON
V-163