Samsung DVM PLUS III Technical Data Book page 691

05-4~6_control systems(142~171
Control timing example
(1) Option switch K3
• ON : The external contact control indoor unit OFF only.
• OFF : The external contact control indoor unit ON and OFF.
Case 1 : K3=ON
K1=OFF ➔ The I/M contact is Open, Indoor unit turns OFF (Cannot use remote controller).
Key-tag
I/M contact state
Key-tag
I/M control
Indoor unit
operation
❈ When Remote controller turns the indoor unit ON.
-Zone ① : In the zone where key-tag I/M state is Close, remote controller can be used.
Control priority : The contact state = Remote controller
-Zone ② : In the zone where key-tag I/M state is OPEN, remote controller cannot be used.
Control priority : The contact state > Remote controller
Case 2 : K3=OFF
K1=OFF ➔ The I/M contact is Open, Indoor unit turns ON.
Key-tag
I/M contact state
Key-tag
I/M control
Indoor unit
operation
❈ ON/OFF control by the contact state (Open↔Close).
Control priority : The contact state = Remote controller
3/6/08 14:09 Page 159
The I/M contact is Short, key-tag I/M doesn't work.
Close Open
The contact Open
→ Indoor unit OFF
control
ON OFF
Operation
delay
The I/M contact is Close, Indoor unit turns OFF.
Open Close
The contact Close
→ Indoor unit OFF
control
ON OFF
Operation
delay
Close
①
The contact Open
→ Indoor unit OFF
control
ON
ON control ON control
by remote controller by remote controller
Open
The contact Open The contact Close
→ Indoor unit ON → Indoor unit OFF
control control
ON OFF
ON control by remote controller
Open
②
OFF
Close
ON
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