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Connecting external contact
External contact connection diagram
Indoor temperature
sensor
Temperature sensor
for water tank
Solar pump
Smart grid
External control
1 2
3
4
5 6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Ⓙ
Ⓚ
Ⓜ
Ⓛ
Ⓝ
V1
V2
L
N
L
Ⓗ
Ⓖ
N
Ⓐ
Main power
Ⓑ
Operation check
Ⓒ
Alarm
Ⓓ
Water pump
Ⓔ
Booster heater
Ⓕ
3Way valve 1
2Way valve
3Way valve 2
AC 24V Thermostat
AC 230V Thermostat
Wired remote controller
Outdoor unit (communication cable)
Water In/Out
EVA In/Out
Defrost
Flow switch
Ⓘ
Ⓠ
Connected as factory default
DVM HYDRO UNIT_IM_E_03469A(1).indd 28
2012-11-21 오후 2:32:23