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Operation and Maintenance Instructions
THE NEW EcoHeater
DSEH180401.00.EN
Continuous product development may give rise to specification changes without notice.
Option 3 – tank charging
208
207
221
222
226
225
209
210
224
223
N
L 1
PE
L 3
L 2
1
N
5
3
2
HB1
N
6
4
POWER SUPPLY
3×400V~50Hz
OUTDOOR AIR SENSOR (GT3)
INTERLOCK FROM
CIRCULATION PUMP
GROUP ALARM
CENTRAL FIRE ALARM, WHERE
FITTED (OPEN CONTACT IN
THE EVENT OF ALARM)
TEMPERATUR SENSOR
ACCUMULATOR TANK (GT7)
3.3 Wiring diagram
See the order-unique wiring diagram supplied with the
unit, or at
Option 1 – external control of heat demand
(0–10 VDC)
208
207
221
222
226
225
209
210
224
223
N
L 1
PE
L 3
L 2
1
N
5
3
2
HB1
N
6
4
POWER SUPPLY
3×400V~50Hz
SETPOINT HEATING 0-10V
SIGNAL GND (ACTUAL ZERO)
INTERLOCK FROM
CIRCULATION PUMP
CENTRAL FIRE ALARM, WHERE
FITTED (OPEN CONTACT IN
THE EVENT OF ALARM)
GROUP ALARM
OUTDOOR AIR SENSOR (GT3)
Option 2 – internal control of heat demand
(radiator curve)
208
207
221
222
226
225
209
210
224
223
N
L 1
PE
L 3
L 2
1
N
5
3
2
HB1
N
6
4
FLOW TEMP SENSOR (GT7)
POWER SUPPLY
3×400V~50Hz
OUTDOOR AIR SENSOR (GT3)
INTERLOCK FROM
CIRCULATION PUMP
GROUP ALARM
CENTRAL FIRE ALARM, WHERE
FITTED (OPEN CONTACT IN
THE EVENT OF ALARM)
