Your Heating System; Customizing Settings For Your Home - Mitsubishi Electric ecodan EHPT20Q-VM2EA Operation Manual

3

Your Heating System

Modes
Nominal thermal store tank volume
Overall unit dimensions
Weight (empty)
Weight (full)
Primary expansion vessel Nominal volume
(Accessory item)
Charge pressure
Safety device Water circuit Control thermistor (THW1)
(Thermal store tank)
Control thermistor (THW3)
Pressure relief valve (2 No. devices)
Flow sensor
Manual reset thermostat
Booster heater Manual reset thermostat
Thermal Cut-out
(for dry run prevention)
Primary circuit circulating Thermal store and space heating
pump
Hot water supply
Connections Primary circuit
Secondary (potable) circuit
Target temperature range Space heating Flow temperature *1
Room temperature
DHW supply maximum temperature
Guaranteed operating Ambient *2
range
Outdoor temperature
Electrical data Control board Power supply
Current
Breaker
Booster heater Power supply
Capacity
Current
Breaker
Sound power level
Maximum secondary (potable) water supply pressure
Maximum primary working pressure
Minimum primary working pressure
*1 Depending on the ambient conditions, it may not reach the set temperature.
*2 The cylinder's environment MUST be frost-free.
6
Space & DHW heating
200 L
1600 × 595 × 680 mm (Height × Width × Depth)
77 kg
283 kg
18 L or 25 L
1.0 bar (100 kPa)
42 - 72°C
80 °C
3.0 bar (300 kPa)
Min. flow 1.3 L/min
90 °C
90 °C
121 °C
Grundfos Solar PML 25-145 180
Grundfos Solar PML 25-145 180
φ 22.0
φ 22.0
25 - 60 °C
10 - 30 °C
40 - 70 °C
0 - 35 °C （80％RH)
- 15 - 35 °C
230V N〜 50 Hz
(Phase, voltage, frequency)
12.8 A
20 A
(Local supply)
230V N〜 50 Hz
(Phase, voltage, frequency)
2 kW
8.7 A
16 A
40 dB(A)
10 bar (1 MPa)
2.5 bar (250 kPa)
1.0 bar (100 kPa)
4

Customizing Settings for Your Home

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.
F1 F2 F3 F4
B C D
11 14 13 10
1 2
9
8
7
4
6 5
Main screen
<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
modifications.
A
C Back Return to previous menu.
D Confirm 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
E
cylinder unit protection functions (e.g. freeze stat function) will NOT oper-
ate. 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 Target flow temperature
12 temperature
Target room temperature
Compensation curve
4 OPTION Pressing the function button below this icon will dis-
3
play 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 Heating mode
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 room temperature
Current
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 opera-
tions 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.
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