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8.4 Electric wiring
8.4.1 Electric wiring
CAUTION
• The air-conditioner should apply special power supply, whose voltage should conform to rated voltage.
• Wiring construction must be conducted by the professional technicians according to the labeling on the circuit
diagram.
• The power wire and the grounding wire must be connected the suitable terminals.
• The power wire and the grounding wire must be fasten up by suitable tools.
• The terminals connected the power wire and the grounding wire must be fully fastened and regularly checked, in case
to become flexible.
• Only use the electric components specified by our company, and require installation and technical services from the
manufacturer or authorized dealer. If wiring connection fails to conform to electric installation norm, failure of the
controller, electronic shock, and so on may be caused.
• The connected fixed wires must be equipped with full switching-off devices with at least 3mm contact separation.
• Set leakage protective devices according to the requirements of national technical standard about electric equipment.
• After completing all wiring construction, conduct careful check before connecting the power supply.
• Please carefully read the labels on the electric cabinet.
• The user’s attempt to repair the controller is prohibited, since improper repair may cause electric shock, damages to
the controller, and so on. If the user has any requirement of repair, please contact the maintenance center.
• The power cord type designation is H07RN-F.
8.4.2 KEM-30 DRS4.1 KH and KEM-60 DRS4.1
KH and KEM-90 DRS4 KH
DIP switch, buttons and digital display positions of uints.
S5
ENC2
ENC4
S12
S6
POWER
NET_ADDRESS
DSP1
DSP2
Fig. 8-9 Display positions
8.4.3 DIP switch instructions
Table 8-5 KEM-30 DRS4.1 KH and KEM-60 DRS4.1 KH and
KEM-90 DRS4 KH
ENC2
0/1/2
DIP switch for capacity selection
(KEM-30 DRS4.1 KH defaults 0)
(KEM-60 DRS4.1 KH defaults 1)
(KEM-90 DRS4 KH defaults 2)
ENC4
0-F
0-F valid for uint address setting on
the DIP switches
0 indicates the master unit and 1-F
the auxiliary uints
(parallel connection) (0 by default)
S5-3
OFF
Normal control
Valid for S5-3 OFF(factory default)
ON
Remote control
valid for S5-3 ON
S12-1
ON
Valid for S12-1 ON (factory default)
S12-2
OFF
Single water pump control
Valid for S12-2 OFF(factory default)
ON
Multiple water pumps control
Valid for S12-2 ON
S12-3
OFF
Normal cooling mode
Valid for S12-3 OFF(factory default)
(only for KEM-30 DRS4.1 KH and
KEM-60 DRS4.1 KH)
ON
Low-temperature cooling mode
Valid for S12-3 ON
(only for KEM-30 DRS4.1 KH and
KEM-60 DRS4.1 KH)
Содержание KEM-30
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