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EN
EN
Your Heating System
3
Product specifi cation
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)
Nominal volume
18 L or 25 L
Charge pressure
1.0 bar (100 kPa)
Safety device
Water circuit
(Thermal store tank)
Control thermistor (THW1)
42 - 72°C
Control thermistor (THW3)
80°C
Pressure relief valve (2 No. devices)
3.0 bar (300 kPa)
Flow sensor
Min. fl ow 1.3 L/min
Manual reset thermostat
90°C
Booster heater
Manual reset thermostat
90°C
Thermal Cut-out
(for dry run prevention)
121°C
Primary circuit circulating
pump
Thermal store and space heating
Grundfos Solar PML 25-145 180
Hot water supply
Grundfos Solar PML 25-145 180
Connections
Primary circuit
ø 22.0
Secondary (potable) circuit
ø 22.0
Target temperature range
Space heating
Flow temperature *1
25 - 60°C
Room temperature
10 - 30°C
DHW supply maximum temperature
40 - 70°C
Guaranteed operating
range
Ambient *2
0 - 35°C (80%RH)
Outdoor temperature
- 15 - 35°C
Electrical data
Control board
Power supply
(Phase, voltage, frequency)
230V N
~
50 Hz
Current
12.8 A
Breaker
(Local supply)
20 A
Booster heater
Power supply
(Phase, voltage, frequency)
230V N
~
50 Hz
Capacity
2 kW
Current
8.7 A
Breaker
16 A
Sound power level
40 dB(A)
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)
*1 Depending on the ambient conditions, it may not reach the set temperature.
*2 The cylinder's environment MUST be frost-free.
Customizing Settings for Your Home
4
To change the settings of your heating system please use the main controller located on the front panel of the cylinder
unit. The following is a guide to viewing the main settings. Should you require more information please contact your
installer or local Mitsubishi Electric dealer.
Main Controller
<Main controller parts>
Letter Name
Function
A
Screen
Screen in which all information is displayed.
B
Menu
Access to system settings for initial set up and
modifi cations.
C
Back
Return to previous menu.
D
Confi rm
Used to select or save. (Enter key)
E
Power/Holiday
If system is switched off pressing once will turn
system on. Pressing again when system is
switched on will enable Holiday Mode. Holding the
button down for 3 secs will turn the system off. (
*1
)
F1-4
Function keys
Used to scroll through menu and adjust settings.
Function is determined by the menu screen visible
on screen A.
*1 When the system is switched off or the power supply is disconnected,
the cylinder unit protection functions (e.g. freeze stat function) will NOT
operate. Please beware that without these safety functions enabled, the
indoor unit and water pipe works may potentially become exposed to
frost damage.
<Main screen icons>
Icon
Description
1
Heat pump
‘Heat pump’ is running.
Defrosting.
Emergency heating.
2
Electric heater
When this icon is displayed the ‘Electric heaters’
(booster heater) are in use.
3
Target
temperature
Target fl ow temperature
Target room temperature
Compensation curve
4
OPTION
Pressing the function button below this icon will
display the option screen.
5
+
Increase desired temperature.
6
-
Decrease desired temperature.
7
Z1
Z2
Pressing the function button below this icon
switches between Zone1 and Zone2.
Information
Pressing the function button below this icon displays
the information screen.
8
Space heating
mode
Heating mode
Zone1 or Zone2
9
DHW mode
Domestic hot water heating mode
10
Holiday mode
When this icon is displayed ‘Holiday mode’
activated.
11
Timer is activated.
Prohibited
Server control is activated.
Stand-by
Stopped
Operating
12
Current
temperature
Current room temperature
Current water temperature of thermal store
tank
13
The Menu button is locked or the switching of
the operation modes between DHW and Heating
operations are disabled in the Option screen.(
*2
)
14
SD memory card is inserted. Normal operation.
SD memory card is inserted. Abnormal operation.
*2 To lock or unlock the Menu, press the BACK and CONFIRM keys
simultaneously for 3 seconds.
F1
F2
F3
F4
B
C
D
E
A
11
10
2
1
9
6
5
4
14 13
12
7
3
8
Main screen
