Mitsubishi Electric ecodan ERSE series Installationshandbuch Seite 17

4
Installation
Option 1: Hydrobox powered via outdoor unit
<1 phase>
Affix label A that is included with the manuals near
each wiring diagram for hydrobox and outdoor units.
Earth
leakage
Power
circuit
supply
breaker
~/N
*1, *2
230 V
50 Hz
<3 phase>
Affix label A that is included with the manuals near
each wiring diagram for hydrobox and outdoor units.
Earth
Power
leakage
supply
circuit
breaker
3N~
*1, *2
400 V
50 Hz
Power supply
3~ 400 V 50 Hz (E*SE-YM9EC)
Hydrobox - Outdoor unit
Hydrobox - Outdoor unit earth
Hydrobox - Outdoor unit S1 - S2 *4
Hydrobox - Outdoor unit S2 - S3 *4
*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 active phase conductors of the supply.
*3. Max. 45 m
If 2.5 mm² used, Max. 50 m
If 2.5 mm² used and S3 separated, Max. 80 m
*4. The values given in the table above are not always measured against the ground value.
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 longer than other cables.
4. Please keep enough output capacity of power supply for each heater. Insufficient power supply capacity might cause chattering.
Outdoor unit
Wiring
circuit
L
S1
breaker or
Isolating
N
S2
switch
S3
<Figure 4.4.2>
Electrical connections 1 phase
Outdoor unit
L1 S1
Wiring
L2
S2
circuit
breaker or
L3
S3
Isolating
switch
N
Wiring
circuit
breaker or
Isolating
switch
<Figure 4.4.3>
Electrical connections 3 phase
*3 3 × 1.5 (polar)
*3 1 × Min. 1.5
230 V AC
24 V DC
Hydrobox
TB1
L
N
*1 If the installed earth leakage circuit breaker does
not have an over-current protection function, install a
To control
breaker with that function along the same power line.
board
S1
S2
S3
Hydrobox
TB1
L1
L2
To control
board
S1
S2
*1 If the installed earth leakage circuit breaker does
S3
not have an over-current protection function, install a
breaker with that function along the same power line.
ECB1
Description
L1
For
booster
L2 Booster heater
heater
(Primary circuit)
(Primary circuit)
L3
Power Capacity Breaker Wiring
supply
3~ 400 V
9 kW 16 A *2 2.5 mm²
50 Hz
16