7
OCH714D
SPECIFICATIONS
3
Model name
EHST17D-
VM2D
EHST17D-
YM9D
ERST17D-
VM2D
ERST17D-
VM6D
EHST20D-
MED
EHST20D-
VM2D
EHST20D-
VM6D
EHST20D-
YM9D
EHST20D- YM9ED
EHST20D-
TM9D
ERST20D-
VM2D
ERST20D-
VM6D
ERST20D-
YM9D
Nominal domestic hot water volume
170 L
200 L
Overall unit dimensions (Height × Width × Depth)
1400 × 595 × 680 mm
1600 × 595 × 680 mm
W
eight (empty)
93 kg
96 kg
94 kg
94 kg
93 kg
99 kg
100 kg
102 kg
96 kg
102 kg
100 kg
100 kg
102 kg
W
eight (full)
269 kg
274 kg
269 kg
273 kg
299 kg
305 kg
306 kg
310 kg
305 kg
310 kg
306 kg
306 kg
310 kg
W
ater volume of heating circuit in the unit *1
3.4 L
5.7 L
3.4 L
5.7 L
3.5 L
5.8 L
3.5 L
5.8 L
Unvented expansion
vessel(Primary heating)
Nominal volume
12 L
—
12 L
—
12 L
Charge pressure
0.1 MPa
—
0.1 MPa
—
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
—
90°C
BH thermal Cut Of
f
121°C
—
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
DHW circuit
ø22 mm
Refrigerant
(R32/ R410A)
Liquid
6.35 mm
Gas
12.7 mm
Operating range
Heating
Room temperature
10 - 30°C
Flow temperature
20 - 60°C
Cooling
Room temperature
—
Flow temperature
—
—
5 - 25°C
—
5 - 25°C
Guaranteed operat
-
ing range *2
Ambient
0 - 35°C (
80 %RH)
Outdoor temperature
Heating
See outdoor unit spec table.
Cooling
—
—
*3
—
*3
DHW tank performance
Maximum allowable hot water temperature
70 °C
*4
70 °C
Declared load profile
L
Average climate
W
ater heater energy
efficiency class
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
~/N, 230 V
, 50 Hz
—
~/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
Capacity
2 kW
3 kW +6 kW
2 kW
2 kW +4 kW
—
2 kW
2 kW +4 kW
3 kW+6 kW
2 kW
2 kW +4 kW
3 kW +6 kW
Heater step
1
3
1
3
—
1
3
1
3
3
Current
9 A
13 A
9 A
26 A
—
9 A
26 A
13 A
23 A
9 A
26 A
13 A
Breaker
16 A
16 A
16 A
32 A
—
16 A
32 A
16 A
32 A
16 A
32 A
16 A
Immersion heater *5
Power supply
(Phase, voltage, frequency)
—
Capacity
—
Current
—
Breaker
—
Sound power level (PWL)
41 dB(A)
<T
able 3.1>
*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.
