Energy Monitor Settings; General Description; Calculation Internally; Connectable Electric Energy Meter And Heat Meter - Mitsubishi Electric EHSD-MEC.UK Service Manual

<Energy monitor settings>

1. General description

End user can monitor accumulated*1 'Consumed electrical energy' and 'Delivered heat energy' in each operation mode*2 on the main controller.
*1 Monthly and Year to date
*2 - DHW operation
- Space heating
- Space cooling
Refer to the menu tree in "9-3. Main Settings Menu" for how to check the energy, and "6-6. DIP switch setting" for the details on DIP-SW setting.
Either one of the following two method is used for monitoring.
Note: The method (1) should be used as a guide. If a certain accuracy is required, the method (2) should be used.

(1) Calculation internally

Electricity consumption is calculated internally based on the energy consumption of outdoor unit, electric heater, water pump(s) and other auxiliaries.
Delivered heat is calculated internally by multiplying delta T (Flow and Return temp.) and flow rate measured by the factory fitted sensors.
Set the electric heater capacity and water pump(s) input according to indoor unit model and specs of additional pump(s) supplied locally. (Refer to the menu tree
in "9-3. Main Settings Menu")
Booster heater1
Defult 2kW
EHSD-MEC 0kW
EHSD-VM2C 2kW
EHSC-MEC 0kW
EHSC-VM2C 2kW
EHSC-VM2EC 2kW
EHSC-VM6C 2kW
EHSC-VM6EC 2kW
EHSC-YM9C 3kW
EHSC-YM9EC 3kW
EHSC-TM9C 3kW
ERSD-VM2C 2kW
ERSC-MEC 0kW
ERSC-VM2C 2kW
EHPX-VM2C 2kW
EHPX-YM9C 3kW
*1 Change setting to 3kW when connecting optional immersion heater "PAC-IH03V2-E".
*2 "***" displayed in the energy monitor setting mode means the factory fitted pump is connected as Pump 1 so that the input is automatically calculated.
When anti-freeze solution (propylene glycol) is used for primary water circuit, set the delivered energy adjustment if necessary.
For further detail of above, refer to the menu tree in "9-3. Main Settings Menu".
(2) Actual measurement by external meter (locally supplied)
FTC has external input terminals for 2 'Electric energy meters' and a 'Heat meter'.
If two 'Electric energy meters' are connected, the 2 recorded values will be combined at the FTC and shown on the main controller.
(e.g. Meter 1 for H/P power line, Meter 2 for heater power line)
Refer to the [Signal inputs] in section "6. WIRING DIAGRAM" for more information on connectable electric energy meter and heat meter.
● Connectable electric energy meter and heat meter
▪
Voltage free contact for 12VDC detection by FTC (TBI.3 1, 3 and 5 pin have a positive voltage.)
Pulse meter type
▪ Minimum ON time: 40ms
Pulse duration
Minimum OFF time: 100ms
▪ 0.1 pulse/kwh
Possible unit of pulse
100 pulse/kwh
Those values can be set by the main controller. (Refer to the menu tree in "9-3. Main Settings Menu".)
2. Settings using the main controller
In this menu, all parameters required to record the consumed electrical energy and
the delivered heat energy which is displayed on the main controller can be set. The
parameters are an electric heater capacity, supply power of water pump and heat
meter pulse.
Follow the procedure described in General Operation for the set up operation.
For Pump 1, *** can be also set besides this setting.
In the case *** is selected, the system acknowledges "factory fitted pump" is se-
lected.
OCH571
Immersion
Booster heater2
heater*1
4kW 0kW
0kW 0kW *1
0kW 0kW
0kW 0kW *1
0kW 0kW *1
0kW 0kW *1
4kW 0kW *1
4kW 0kW *1
6kW 0kW *1
6kW 0kW *1
6kW 0kW *1
0kW 0kW *1
0kW 0kW *1
0kW 0kW *1
0kW 0kW *1
6kW 0kW *1
1 pulse/kwh 10
1000 pulse/kwh
29
Pump1*2
***(factory fitted pump)
***
***
***
***
***
***
***
When additional pumps supplied locally are
*** connected as Pump2/3, change setting ac-
cording to specs of the pumps.
***
***
***
***
***
***
***
pulse/kwh
Energy monitor settings menu screen
Pump2 Pump3
0kW 0kW