Samsung DVM PLUS III Technical Data Book page 684

05-4~6_control systems(142~171
Control Systems
4 Power distribution system
4
4-2. Power distribution unit (MCM-B102)
4) Installation
(3) Power distribution unit comm. timing flowchart
Input power
Power distribution unit ↔
Indoor/Outdoor units comm.
Power distribution unit ↔
Watt-hour meter Comm.
Confirm normal comm.
Display the consumed power
with the connected indoor units
(4) Option switch setting for the watt-hour meter
• Set the option setting switch for the PCB below.
K1 K2 K3 K4
N N o o t t e e
N N o o t t e e
(1) Pulse-type watt-hour meter cannot be connected with the power distribution unit.
If the option setting for watt-meter is not correct, watt-hour meter communication error occurs.
V-152
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Mode
Room
Mode
Room
No
Mode
Yes
Room
Option switch setting for RS485 watt-hour meters. (1)
Screen display
KWH
Total
KWH
WHM PDU Error
Watt-hour meter comm. error
KWH
Total
KWH
PDU DVM Error
Indoor/Outdoor units comm. error
KWH
Total
KWH