18
L
N
S1
S2
S3
S1
S2
S3
TB1
L
N
ECB1
L
N
For
booster
heater
To control
board
Outdoor unit
Wiring
circuit
breaker or
Isolating
switch
Earth
leakage
circuit
breaker
*1, *2
Power supply
~/N 230 V 50 Hz
Earth
leakage
circuit
breaker
*1, *2
Wiring
circuit
breaker or
Isolating
switch
Wiring
circuit
breaker or
Isolating
switch
Power supply
~/N 230 V 50 Hz
Hydrobox
L1
L2
S1
S2
S3
S1
S2
S3
TB1
L2
L3
ECB1
N
L3
L1
L
N
Earth
leakage
circuit
breaker
*1, *2
Outdoor unit
Wiring
circuit
breaker or
Isolating
switch
To control
board
For
booster
heater
Hydrobox
Wiring
circuit
breaker or
Isolating
switch
Power supply
~/N 230 V 50 Hz
Earth
leakage
circuit
breaker
*1, *2
Wiring
circuit
breaker or
Isolating
switch
Hydrobox power supply
~/N 230 V 50 Hz
Hydrobox input capacity
Main switch (Breaker)
*2
16 A
Wiring No.
× size (mm²)
Hydrobox power supply
2 × Min. 1.5
Hydrobox power supply earth
1 × Min. 1.5
Hydrobox - Outdoor unit
*3
2 × Min. 0.3
Hydrobox - Outdoor unit earth
—
Circuit
rating
Hydrobox L - N
*4
230 VAC
Hydrobox - Outdoor unit S1 - S2
*4
—
Hydrobox - Outdoor unit S2 - S3
*4
24 VDC
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60245 IEC 57)
Indoor unit power supply cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60227 IEC 53)
3. Install an earth line longer than power cables.
4. Please keep enough output capacity of power supply for each heater. Insufficient power supply capacity might cause chattering.
Option2: Hydrobox powered by independent source
<1 phase>
<Figure 7.3>
Electrical connections 1 phase
<3 phase>
<Figure 7.4>
Electrical connections 3 phase
*1.
If the installed earth leakage circuit breaker does not have an
over-current protection function, install a breaker with that func
-
tion along the same power line.
*2.
A breaker with at least 3.0 mm contact separation in each pole
shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all ac-
tive phase conductors of the supply.
*3.
Max. 120 m
*4.
The values given in the table above are not always measured
against the ground value.
Affix label B that is included with the manuals near each wiring diagram for hydrobox and outdoor units.
Affix label B that is included with the manuals near each wiring diagram for hydrobox and outdoor units.
Description
Power supply
Capacity
Breaker
Wiring
Booster heater (Primary circuit)
3~ 400 V 50 Hz
9 kW
16 A
*2
2.5 mm²
3~ 230 V 50 Hz
9 kW
32 A
*2
6.0 mm²
Description
Power supply
Capacity Breaker Wiring
Booster heater
~/N 230 V 50 Hz
2 kW
16 A
*2
2.5 mm²
6 kW
32 A
*2
6.0 mm²
Power supply
~/N 230 V 50 Hz
Power supply
3N~ 400 V 50 Hz
Power supply
3~
400 V
50 Hz (E***-YM9*D)
3~
230 V
50 Hz (EH**-TM9*D)
OCH712C
Summary of Contents for ecodan EHPX-VM2D
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