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8.5 Electric wiring
8.5.1 Electric wiring
• 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.
CAUTION
8.5.2 KEM-30 DRS4 and KEM-60 DRS4
DIP switch, buttons and digital display positions of units.
DSP1
DSP2
S5
ENC2
POWER
ENC4
NET_ADDRESS
S12
S6
Fig. 8-8 Display positions
8.5.3 DIP switch instructions
Table 8-5 KEM-30 DRS4 and KEM-60 DRS4
ENC2
0/1
DIP switch for capacity selection
(KEM-30 DRS4 defaults 0)
(KEM-60 DRS4 defaults 1)
ENC4
0-F
0-F valid for unit address setting on
the DIP switches
0 indicates the master unit and 1-F
the auxiliary units
(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
S6-3
OFF Anti-slow function is invalid
Valid for S6-3 OFF (factory default)
ON Anti-slow function is effective
Valid for S6-3 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)
ON Low-temperature cooling mode Valid
for S12-3 ON
