Samsung DVM Installation Manual page 23

Pipe type
2-pipe
4-pipe
When using 4-pipe system, set SEG14 of 05 series installation option as 1.
In case of opposite installation of water pipe 1, 2 sensor in 4 pipe system, error(pipe
block) will be occurred in 30minutes of operation(E992 or E993).
3 FCU interface module connection
DMS(2.5 or later)/BACnet/LonWorks
R1
R2
CN4
V1
V2
F1
F2
Maximum number of FCU interface module and FCU KIT that can be installed to a channel
of DMS is 16 and 128.
CAUTION
Make sure that the FCU interface module must be installed even though the FCU kit is
installed solely (single or multiple installation) without its upper level controller.
Location of Sensor Connector
Water-IN 1
Water-IN 1
Water-IN 2
Connect up to 16 FCU KITs
Location of pipe
Water inlet pipe
Chilled water inlet pipe
Heating water inlet pipe
Connect up to 16 FCU interface
modules
CN4
23