Nectar Sun PVHC-2.01 Manuale utente

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

USER MANUAL

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

CONTENT

CONTROL ELEMENTS AND CONNECTIONS........................... 3

HOW IT WORKS............................................................................. 4

INSTALLATION PROCEDURE, SWITCHING ON THE

DEVICE............................................................................................ 5

CONNECTION DIAGRAM............................................................ 6

USER MENU ................................................................................... 7

SPECIFICATIONS ........................................................................ 11

EU Declaration of Conformity ....................................................... 12

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

CONTROL ELEMENTS AND CONNECTIONS

Position

Control elements & connections

OLED text display

Touch sensitive control buttons

Photovoltaic modules connection (POSITIVE)

Photovoltaic modules connection (NEGATIVE)

Device connection cable to the water heating element

Device connection cable to the main power grid

Device connection cable to the temperature sensor

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

HOW IT WORKS

Our heating system is as simple as possible. Install solar panels, connect them to the

NectarSun controller and water heater you already have (for further instructions please

see furter pages).

Energy produced by solar panels is stored in

your heater to keep it when you need it, day

or night.

Controller is able to connect to most elecric

water heaters available for household use.

The device connects directly to the water

heater, without changing the existing

electrical wiring.

No pipes, valves, pumps or other additional

equipment.

Location for Solar Panels Depending on the demand for hot water from 4 to 12 solar

modules can be installed, maximum 2500 Wp. The arrangement of the modules can be

decided individually. They can optionally be mounted on a pitched roof, flat roof, or can

be free-standing. An appropriate mounting angle can range from 20° up to about 50°.

Special reinforcements are available for extreme conditions such as high wind areas and

snow loads. Avoid any shadow areas especially between southeast and southwest. Even

partialshading will lead to a significant performance reduction.

Note, please check any national regulations for specific countries.

Durability and Security stands out due to exceptional Nectar Sun functionality:

•The MPPT system inside the controller is always balancing the highest solar

power, depending on the solar radiation available.

•Controller and water storage tank are working with DC,so that there are no

conversion losses.

•Necar Sun has a boost mode to avoid legionella.

•it is advisable to install a thermostatic water mixer. It regulates the water

temperature by mixing in cold water to reach the desired temperature. For

this, the combi valve MT GDS should be used.

•Protection against overheating due to overload separation of the solar

modules.

•Protection against overvoltage with surge protection in the PV input.

•Protection against risk of frost –away mode and PV modules are frost

resistant.

•High reliability: solar savings (kWh) can be read on the display or Nectar Sun

app.

•High electricalsafety due to positive separation of the PV-side and

conformance testing of standard under the CE certification procedures.

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

INSTALLATION PROCEDURE, SWITCHING ON THE DEVICE

CAUTION! HIGH VOLTAGE.

CONNECTION WORKS SHOULD ONLY BE CARRIED OUT BY

QUALIFIED SPECIALISTS.

1. Recommended maximum total power of PV modules in the maximum power point

1.5kW should not exceed 2.5 kW.

2. PV modules are connected serially. Maximum current of PV modules in the maximum

power point should not exceed 10 A.

3. When installing connections of PV modules, assure that connection polarity is not

reversed.

4. When configuring the photovoltaic system, make sure that all photovoltaic system

components are operating completely within their permitted operating range. All

measures recommended by the solar module manufacturer for maintaining solar

module properties must be followed.

CAUTION! If connection polarity is reversed, damage to the device

is unavoidable.

5. Nectar Sun installation and wiring works may be only performed when the device is

completely OFF, that is, all the switches are set to 0 position.

CAUTION! It is forbidden to disassemble, install or perform other

connection works when Nectar Sun device is not completely OFF.

6. Compatibility with hot water tanks please see „Specifications. Recommended heating

element“.Recommended to have overpressure valve.

7. Nectar Sun device must be installed as close to the boiler as possible. The installation

place must not hinder natural ventilation of the device and be convenient to control it.

For precise readings we recommend to install temperature sensor on the top of the

tank.

8. Nectar Sun is suitable for indoor installation only.

9. The device must not be installed or operated above an altitude of 11,154 ft. (3400 m).

The maximum permissible DC voltage of the inverter depends on the altitude.

10. Disconnect the boiler from electricity grid and connect it to Nectar Sun.

11.Connect connectors of solar PV modules to the Nectar Sun (see Fig. “Control

Elements and Connections”)

12. Connect Nectar Sun device to electricity grid.

13. The manufacturer is not responsible for any damage resulting from improper use. All

warranty claims are considered void in such cases. Proper use also means - carefully

reading and obeying all the instructions and safety and danger notices in the operating

instructions - carrying out all the specified inspection and servicing work - installation as

per operating instructions.

14. Modifications of the device are not allowed. Nectar Sun device can be connected

only to water tank (boiler).

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

CONNECTION DIAGRAM

CAUTION! It is forbidden to

disassemble, install or

perform other connection

works when NectarSun device

is not completely OFF.

CAUTION! If connection

polarity is reversed, damage

to the device is unavoidable.

System protection by

Switch, relays

overvoltage and other

devices

Temperature sensor

Power grid

Water heating

element

PV modules

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

USER MENU

When starting up your Nectar Sun for the first time, various setup settings must be selected.

To switch on the device you need to

To set up your Nectar Sun you need to do the following:

To set up a time.

Note: after this step your Nectar Sun is starting to work. If you want to set up an additional

information proceed with following:

To control and set up please choose :

if you want to connect the device with internet via wifi and control it with Nectar Sun app. For

further instructions please see: “How to connect wifi and control via app”;

if you want to control the device manually. For further instructions please see: “How to

control manually”.

Note: 30 min. after switching on the device your Nectar Sun is ready to be connected to wifi.

If you want to pair the device with wifi later, please go to the section „Settings. Pair with wifi“.

If setup is stopped before it is completed, it can be started again via reset.

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

HOW TO CONNET WIFI AND CONTROL VIA APP

(CONFIGURED MENU)

Note:

To navigate and go to next screen.

To navigate and go to previous screen.

To select or confirm press.

Main screens in various operation modes

Display:

Explication

Idle

Main display with current water

temperature

Active

status

Connected to

wifi or not

connected

water temperature

Connected to network of not

connected

Grid/Sun/Idle

Grid - shows power from grid, if

uses;

Sun - displays power from pv, if uses;

Idle –shows nothing.

Active

totals

Today XX kWh

Total XXX kWh

Today –energy (from PV) count

during the day (kWh.)

TOTAL –total energy count (from PV)

from start-up (kWh, MWh).

Settings

Select to open settings menu

Language

Set display language

Back

Go back to main screen

Reset

Reset all settings:

• day/night time;

• day/night temperature;

• time;

• language;

• mode;

• wifi configured, if it was connected.

To start your Nectar Sun you need to

set a time.

30 min. after Reset you can pair the

device with wifi.

To set up other operations please see Nectar Sun App.

For Android: www.nectarsun.com/android

For iPhone: www.nectarsun.com/iphone

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

CONTROL MANUALLY (NOT CONFIGURED MENU)

Note:

To navigate and go to next screen.

To navigate and go to previous screen.

To select or confirm press.

Main screen in various operation modes:

Display:

Menu item

Text

Explication

Idle

Main display with current water

temperature

Active

status

Auto/Away/No

grid/Boost

Shows heating mode status.

Grid/Sun/Idle

Grid - shows power from grid, if uses;

Sun - displays power from pv, if uses;

Idle –shows nothing.

Active

totals

Today XX kWh

Total XXX kWh

Today - energy count during the day.

TOTAL –total energy count from start-

up. In kWh, MWh.

Mode

Press to choose the mode

Auto

Auto mode keeps water temperature

according to day/night temperature

settings (pls. See settings).

Uses grid power, if PV power is not

enough or not available.

Away

Away mode keeps water temperature

between 10-45°C

No grid

No grid mode uses only PV for water

heating. When this mode is selected, the

maximum temperature could reach 75

°C.

Connects to grid, if water temperature is

< 5°C.

Boost

Boosts up water temperature to 66°C.

Connects to grid.

Settings

Select to open settings menu

Day temp.

Select the minimum temperature you

want to heat water in day time.

Heating from grid is turned on below this

temperature.

Night

temp.

Night temp.

Select the minimum temperature you

want to heat water at night time.

Heating from grid is turned on below this

temperature.

Max temp.

We recommend Set maximum water

temperature, then heating from sun

panels.

PHOTOVOLTAIC HEAT CONTROLER PVHC –2.01

While heating from PV, water heating is

turned off then temperature is reached.

Day starts

Set the start of your day, e.g.: 7:30 a.m.

Night starts

Set the end of your day, e.g.: 10:30 p.m.

Time

Set current time

Language

Set display language

Pair with

wifi

Pair with wifi

Connect to wifi

Back

Go back to main screen

Reset

Reset all settings:

• day/night time

• day/night temperature

• time

• language

• mode

To start your Nectar Sun you need to set

a time.

30 min. after Reset you can pair the

device with wifi.

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