9
OCH714D
<T
able 3.3>
*1 V
olume of sanitary water circuit, primary DHW circuit (from 3-way valve to confluent point with heating circuit), piping to expansion vessel, and expansion vessel are not included in this value.
*2
The environment must be frost-free.
*3
See outdoor unit spec table (min, 10
°C
). Cooling mode is not available in low outdoor temperature. If you use our system in cooling mode at the low ambient temperature (10°C or below), there are some risks of plate heat exchanger damages by frozen water
.
*4 For the model without booster heater and immersion heater
, the maximum allowable hot water temperature is [Maximum outlet water of outdoor unit -3
°C]. For the maximum outlet water of outdoor unit, refer to outdoor unit data book.
*5
Do not fit immersion heaters without thermal cut-out. Use only Mitsubishi Electric service parts as a direct replacement.
Model name
EHST30C-
MED
EHST30C- VM6ED
EHST30C- YM9ED
EHST30C- TM9ED
ERST30C- VM2ED
ERST30C- VM6ED
ERST30C- YM9ED
ERST17D- VM2BD
ERST17D- VM6BD
ERST17D- YM9BD
Nominal domestic hot water volume
300 L
170 L
Overall unit dimensions (Height × Width × Depth)
2050 × 595 × 680 mm
1750 × 595 × 680 mm
W
eight (empty)
120 kg
122 kg
124 kg
122 kg
122 kg
124 kg
116 kg
116 kg
118 kg
W
eight (full)
428 kg
430 kg
434 kg
429 kg
430 kg
434 kg
293 kg
293 kg
297 kg
W
ater volume of heating circuit in the unit *1
5.0 L
7.3 L
5.0 L
5.0 L
7.3 L
4.3 L
6.2 L
Unvented expansion vessel(Primary heating)
Nominal volume
—
12 L
Charge pressure
—
0.1 MPa
Safety
device
Primary circuit
Control thermistor
80°C
Pressure relief valve
0.3 MPa (3 bar)
Flow sensor
Min. flow 5.0 L/min
BH manual reset thermostat
—
90°C
BH thermal Cut Of
f
—
121°C
DHW tank
Control thermistor
75
°C
IH manual reset thermostat
—
Temperature /
Pressure relief valve
1.0 MPa (10 bar)
Connections
W
ater
Primary circuit
ø28 mm
G1 female
DHW circuit
ø22 mm
G3/4 female
Refrigerant (R32/ R410A)
Liquid
ø9.52 mm
ø
6.35 mm
Gas
ø15.88 mm
ø12.7 mm
Operating range
Heating
Room temperature
10 - 30°C
Flow temperature
20 - 60°C
Cooling
Room temperature
—
Flow temperature
—
5 - 25°C
Guaranteed operat
-
ing range *2
Ambient
0 - 35°C (
80 %RH)
Outdoor
temperature
Heating
See outdoor unit spec table.
Cooling
—
*3
DHW tank
performance
Maximum allowable hot water temperature
*4
70°C
Declared load profile
XL
L
Average
climate
W
ater heater energy efficiency
class
A
A+
Electrical data
Control board (Including 4 pumps)
Power supply
(Phase, voltage, frequency)
~/N, 230 V
, 50 Hz
Input
0.30 kW
Current
1.95
A
Breaker
10
A
Booster
heater
Power supply
(Phase, voltage, frequency)
—
~/N, 230 V
,
50 Hz
3~, 400 V
,
50 Hz
3~, 230 V
,
50 Hz
~/N, 230 V
,
50 Hz
3~, 400 V
,
50 Hz
~/N, 230 V
,
50 Hz
3~, 400 V
,
50 Hz
Capacity
—
2 kW +4 kW
3 kW +6 kW
2 kW
2 kW +4 kW
3 kW +6 kW
2 kW
2 kW +4 kW
3 kW +6 kW
Heater step
—
3
3
1
3
3
1
3
3
Current
—
26
A
13
A
23
A
9 A
26
A
13
A
9 A
26
A
13
A
Breaker
—
32
A
16
A
32
A
16
A
32
A
16
A
16
A
32
A
16
A
Immersion heater *5
Power supply
(Phase, voltage, frequency)
—
Capacity
—
Current
—
Breaker
—
Sound power level (PWL)
40 dB(A)
41 dB(A)
