4
Introduction
2
The purpose of this Installation Manual is to instruct competent persons how to safely and efficiently install and commission the cylinder unit system.
The target readers of this manual are competent plumbers and/or refrigeration engineers who have attended and passed the requisite Mitsubishi Electric
product training and have appropriate qualifications for installation of an unvented hot water cylinder unit specific to their country.
5
Technical Information
3
Ű
Product specification
<Table 3.1>
*1 Depending on the ambient conditions, it may not reach the set temperature.
*2 The cylinder's environment MUST be frost-free.
Model name
EHPT20Q-VM2EA
Modes
Space & DHW heating
Nominal thermal store tank volume
200 L
Overall unit dimensions
1600 × 595 × 680 mm (Height × Width × Depth)
Weight (empty)
77 kg
Weight (full)
283 kg
Primary expansion vessel
(Accessory item)
18 L or 25 L
Nominal volume
Charge pressure
1.0 bar (100 kPa)
Safety device
42 - 72°C
80 °C
3.0 bar (300 kPa)
90 °C
121 °C
Control thermistor (THW1)
Control thermistor (THW3)
Pressure relief valve (2 No. devices)
Min. flow 1.3 L/min
90 °C
Flow sensor
Manual reset thermostat
Manual reset thermostat
Thermal Cut-out
(for dry run prevention)
Water circuit
(Thermal store tank)
Booster
heater
Primary circuit circulating
pump
Grundfos Solar PML 25-145 180
Thermal store and space heating
Hot water supply
Grundfos Solar PML 25-145 180
Connections
φ
22.0
φ
22.0
Primary circuit
Secondary (potable) circuit
Target temperature range
Space heating
25 - 60 °C
Maximum secondary (potable) water supply pressure
10 bar (1 MPa)
Maximum primary working pressure
2.5 bar (250 kPa)
Minimum primary working pressure
1.0 bar (100 kPa)
10 - 30 °C
DHW supply maximum temperature
40 - 70 °C
Flow temperature *1
Room temperature
Guaranteed operating range
0 - 35 °C
（80％RH)
- 15 - 35 °C
Ambient *2
Outdoor temperature
Electrical data
230V N
〜
50 Hz
20 A
230V N
〜
50 Hz
2 kW
Control board
Booster heater
Power supply
(Phase, voltage, frequency)
Breaker
(Local supply)
Power supply
(Phase, voltage, frequency)
Capacity
Current
8.7 A
Breaker
16 A
Sound power level
40 dB(A)
12.8 A
Current
