Samsung AM BXV Series - Connecting the MCU; Grounding work; Performing the grounding work

41
English
Installation Procedure
Connecting the MCU (MCU-S6NEK2N, MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N)
Example
Outdoor
unit
Indoor unit Indoor unit
ELB
(A) (B)
ELB
MCCB
MCCB
ߤߢߪࣛߤߥߢǤ
• (A) Power must be supplied to the MCU separately from the outdoor unit.
• (B) Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the MCU (F1, F2)
CAUTION
• Power cable connection should be done with the solderless ring terminal.
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
MCU
MCU
• When installing the MCU, communication cable can be connected as shown above.
Grounding work
Grounding must be done by a qualified installer for your safety.
Grounding the power cable
• The standard of grounding may vary according to the rated voltage and installation place of the air conditioner.
• Ground the power cable according to the following table.
Power condition
Installation place
Voltage to ground is lower than 150V Voltage to ground is over 150V
High humidity
Must perform the grounding work 3.
Note 1)
(Including the case where earth leakage breaker is installed)
Average humidity Perform grounding work 3.
Note 1)
đЇϑϩΧʪθ˙ͱθϩ˵ʪ˝θͱЇʒ˝иͱθߥ࢏
Note 1)
(Including the case where earth leakage breaker is installed)
Low humidity Perform grounding work 3, if possible, for your safety.
Note 2)
Note 1) About grounding work 3.
• Grounding work must be done by an expert (with qualification).
• A˵ʪʀ˙ϩ˵ʪ˝θͱЇʒ˝θʪϑϑϩɇʀʪϑͱиʪθϩ˵ɇߣߢߢצ࢏Ǯ˵ʪϑϩɇ˝ɇʪɇθϩ˵ʪɇɇ˝ʪɵθʪɇʪθ࣑ϩ˵ɇϩʀɇʀЇϩϩ˵ʪʪʪʀϩθʀʀθʀЇϩиϩ˵
ߢ࢏ߧϑʪʀͱʒʀɇϑʪͱ˙ɇϑ˵ͱθϩʀθʀЇϩ࣒ࡥɇͱиɇɵʪ˝θͱЇʒ˝θʪϑϑϩɇʀʪϑ˵ͱЇʒɵʪߥߢߧߢߢצ࢏
Note 2) Grounding at dry place
• Ɵ˵ʪ˝θͱЇʒ˝θʪϑϑϩɇʀʪϑ˵ͱЇʒɵʪͱиʪθϩ˵ɇߣߢߢצ࢏kЭʪиͱθϑϩʀɇϑʪࡥ˝θͱЇʒ˝θʪϑϑϩɇʀʪϑ˵ͱЇʒɵʪͱиʪθϩ˵ɇߤߧߢצ࢏
Performing the grounding work
• Use a rated grounding cable by referring to the specification of the electric cable for the outdoor unit.
࢜ When using the exclusive grounding terminal (When the
grounding terminal is already built on the house)
࢜ When using grounding of the switch board
Exclusive
grounding terminal
Distributing
board
ki]_TXX\_XhTWWptk}tGzYGvhhluUGGG[X YWYYTWXTYWGGG㝘䟸G[a\_aY_