Mitsubishi EHST20C-VM2C User Manual

L
N
S1
S2
S3
S1
S2
S3
TB1
L
N
ECB1
L
N
ECB2
L
N
34
FIELD WIRING
7
Breaker abbreviation Meaning
ECB1 Earthleakagecircuitbreakerforboosterheater
ECB2 Earthleakagecircuitbreakerforimmersionheater
TB1 Terminal block 1
Earth
leakage
circuit
breaker
*
1,
*
2
Wiring
circuit
breaker
or
Isolating
switch
Outdoor unit
Power
supply
~/N
230 V
50Hz
Power
supply
~/N
230 V
50Hz
Power
supply
~/N
230 V
50Hz
Wiring
circuit
breaker or
Isolating
switch
Wiring
circuit
breaker or
Isolating
switch
To control
board
For
booster
heater
(Primary circuit)
For
Immersion
heater
(DHW tank)
Cylinder unit
Option1:Cylinderunitpoweredviaoutdoorunit
<1 phase>
<Figure7-1>
Electrical connections 1 phase
Description Power supply Capacity Breaker Wiring
Booster heater (Primary circuit) ~/N230V50Hz 2 kW 16 A
*
2
2.5 mm²
6 kW 32 A
*
2
6.0 mm²
Immersion heater (DHW tank) ~/N230V50Hz 3 kW 16 A
*
2
2.5 mm²
Wiring
WiringNo.
×size(mm²)
Cylinder unit - Outdoor unit
*
3
3 × 1.5 (polar)
Cylinder unit - Outdoor unit earth
*
3
1 × Min. 1.5
Circuit
rating
Cylinder unit - Outdoor unit S1 - S2
*
4
230 V AC
Cylinder unit - Outdoor unit S2 - S3
*
4
24 V DC
*
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
 Maximum45m
 If2.5mm²isused,maximum50m.
 If2.5mm²isusedandS3isseparated,maximum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exiblecord.(Design60245IEC57)
Indoorunitpowersupplycordsshallnotbelighterthanpolychloroprenesheathedexible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.Insufcientpowersupplycapacitymightcausechattering.
*
1
Iftheinstalledearthleakagecircuit
breaker does not have an over-current
protectionfunction,installabreakerwith
thatfunctionalongthesamepowerline.
AffixlabelAthatisincludedwiththe manuals neareach
wiringdiagramforcylinderunitandoutdoorunits.
OCH570C

Mitsubishi EHST20C-VM2C Specifications

General

Brand	Mitsubishi
Model	EHST20C-VM2C
Category	Heat Pump
Language	English