ENERGY SAVE Nordic Plus Tank V7 NPET User Manual
- June 3, 2024
- ENERGY SAVE
Table of Contents
ENERGY SAVE Nordic Plus Tank V7 NPET User Manual
Introduction
This user manual describes the main functions and settings that are possible
for the end user to change on Energy Saves air/water heat pumps with touch
display. The naming of the functions may differ depending on the version of
the software. But the order and function are the same in the menus.
Some functions are set by the installer during commissioning and may, in case
of improper use, damage the device or other parts/components of the property
and are therefore protected with an installer password. The password-protected
settings are grayed out in the menus and cannot be changed.
For description of all possible functions, an extended user manual is available on our webpage.
Please visit: www.energysave.se
Don´t forget to register your heat pump within 30 days and get 5 years
compressor warranty!
Visit: www.energysave.se/register
or:
Safety precautions
To ensure both your personal and product safety, note the symbols below and be sure to understand their importance to each of the precautions shown.
Read the user manual carefully before using the unit
Installation, disassembly, and maintenance of the unit must be carried out by
qualified personnel. It is forbidden to make any changes to the
structure/construction of the unit. Otherwise, personal or device damage may
occur
Do not touch the fan cover when the fan motor is running
Water or other form of liquid is strictly forbidden to be poured into/on the
product, it may cause electric shock or damage to the product
This marking indicates that this product should not be disposed of with other
household waste, valid throughout the EU. To prevent possible damage to the
environment or human health, this product must be recycled responsibly. To
return the device, follow local instructions for return and recycling or
contact the dealer where the product was purchased
Main menu
Settings in the main menu are used to adjust room and sanitary hot water
temperature.
If any of the symbols are grey, it means that they are not activated.
-
Outdoor temperature
-
Room temperature– press the temperature to:
- Parallel move the heating curve of the zones1 & 2 (if the room temperature is set not to affect the heating curve, factory setting) – see Ch. 4
- Change the set room temperature (if the room temperature is set to affect the heating curve, not factory setting) – see Ch. 4
-
Sanitary hot water– press the temperature to change the desired temperature of the hot water in the tank– see Ch. 5
-
Zone 1 – current temperature in the heating system– press on the temperature to change the temperature of the water for the current outdoor temperature. (Nearest point of the heating curve, outdoor temperature)
-
Zone 2 – current temperature in the heating system– see point 4
-
Mode selection – Auto mode / manual mode
Auto – automatically alternates between heating, cooling and sanitary hot water
Heating –only heating is activated
Sanitary hot water – only sanitary hot water is activated
Cooling – only cooling is activated
Quick heat – fast heating of sanitary hot water to set temperature (when done it switches back to Auto) -
Menu – access to submenus
-
ON/OFF – Blue color= the heat pump is on; Grey color= heat pump is switched off (stand by)
Additional symbols
The symbols below are shown in cases where a special function is active.
Night mode is active
Outdoor unit defrosting – normal operation
Timer for heating sanitary hot water is active
Heating- and cooling timer is active
Legionella function is active
Vacation mode is active
Floor curing function is active
Electrical utility lock is active
ECO heating function is active
Warning (yellow); The heat pump operates normally but authorized service
personnel must be
informed!
Alarm (red); To ensure the safety of the system and heat pump, the heat pump
is switched off. If the “Emergency Operation” function is activated, the heat
pump continues to operate, but only with backup heating sources (e.g. electric
heater). Contact an authorized service personnel immediately!
Submenus
There are two submenus. The first submenu is primarily for the user to adjust the temperatures and functions as desired. The second submenu contains settings, primarily intended for the installer, that is made during commissioning/installation of the system.
Zone 1 settings
Zone 2 settings
Sanitary hot water settings
Timer settings for sanitary hot sanitary water
Night mode and quiet operation settings
Legionella function settings
Vacation mode settings
User settings
Submenu 2
In submenu 1, press the arrow in the lower right corner to get to submenu 2.
Selecting of working modes of the heat pump and system
Setting up the backup- and additional heating sources
Circulation pumps settings
Floor curing settings
Settings according to the electrical grid requirements
Other settings
Real time data
Note:
For more detailed descriptions of menus and settings, an extended user manual
is available at: www.energysave.se
Adjustment of room temperature
The heat pump uses a heating curve to adjust the temperature of the heating system at different outdoor temperatures. The task of the heating curve is to provide an even indoor temperature, regardless of outdoor temperature, and thereby energy-efficient operation. It is based on the heating curve that the heat pump determines the temperature of the water to the heating system and thereby the indoor temperature. The temperatures that your heating curve should follow to give you a comfortable indoor temperature depend on several factors: insulation of the house, weather conditions, type of heating system and desired indoor temperature. The optimal heating curve is therefore set when your heat pump is installed but may need to be adjusted. Your heat pump can handle two heating curves (zone 1 & 2).
If the room temperature is perceived to be too hot or cold regardless of the outdoor temperature, see Ch. 4.1.
If the room temperature is perceived to be too hot or cold at a certain outdoor temperature, see Ch. 4.2.
Note:
If the heat pump is set to maintain a constant temperature in a buffer tank,
please refer to the extended user manual for further instruction.
Parallel move of the heating curve
This can be done in two ways, depending on whether the room sensor is mounted or not. You will notice if the room sensor is mounted when you follow the steps below.
Adjustment of the desired room temperature without sensor
On the main menu, the heating curve can be fine-tuned by moving parallel
(raised or lowered). The heating curve can be raised or lowered by 3°C (-3 to
+3) from the main menu.
Normally, raising the heating curve by 2-3°C gives an increased room
temperature of about 1°C. If bigger adjustments are needed, please download
the extended user manual for further instruction.
If the window that appears shows System 1 heating curve para… the room sensor is not installed or activated. The room temperature is then controlled according to the heating curve.
If the heating system has two zones (e.g. underfloor heating=zone 1 and radiators=zone 2), these are set separately. To switch between zones, tap the arrows in the lower corners.
Adjustment of the desired room temperature with sensor
Room temperature control can only be done if the room sensor is placed in a suitable room in the house and Room temp. effect on heating curve in menu Zone 1 is activated. The set value affects both zones if they are activated.
If the window that comes up shows Ideal room temp. in heating the room sensor
is installed and the heat pump makes small adjustments to the heating curve to
keep the desired room temperature.
If major adjustments are required, please download the extended user manual
for further instruction
Adaptation of (break) heating curve
When adjusting (break) the heating curve, the temperature of the heating system is adjusted for the current outdoor temperature. For other outdoor temperatures, the heat pump operates according to previous settings
Zone 1 (e.g.: underfloor heating):
Zone 2 (e.g.: radiators):
Adjustment of sanitary hot water
The need of sanitary hot water varies depending on the number of people in the
household and habits.
If need of more sanitary hot water, adjust the temperature in the tank as
below.
Recommended setting is between 47°C and 50°C.
Press the temperature next to the sanitary hot water symbol to adjust the setting.
Note:
Maximum hot water temperature without an additional heat source is 58°C, under
ideal conditions.
The heat pump works more energy efficient at lower temperatures, therefore
47°C – 50°C is recommended, which is usually enough.
Alarm/Warning
If a problem occurs, it appears as either a warning or an alarm. In case of
warning, the heat pump continues to operate normally but authorized service
personnel should be informed. In the event of an alarm, the unit stops and
authorized service personnel must be informed immediately!
For further information on error codes, see the extended user manual.
In case of an alarm , is visible on the main menu and the error code together with a short description appears:
Tips 1
One fault that may occur is S10, which means that the water flow through the
heat pump is too low for safe and trouble-free operation. There may be several
reasons why the flow is not enough, the most common is that filters need to be
cleaned or all thermostats are closed. Ensure that filters are not clogged and
make sure that at least 3 thermostats are fully open (regardless of type of
heating system).
Maintenance
To ensure trouble-free and energy-efficient operation, the points below need to be checked at regular intervals and if alarms or warnings occur. If something abnormal occurs, it is displayed as a warning or alarm.
Pressure in the heating system
The water pressure in the heating system is read on the pressure gauge, black
indicator. The red indicator should point at 1 bar to indicate the lowest
allowable pressure (it can be adjusted). The ideal pressure in the heating
system is 1.5 bar (black indicator). If the pressure is below 1.0 bar, the
system must be refilled.
Time interval: daily until the pressure stays stable, then ones a month
Refilling of heating system
If the pressure is below 1.0 bar, the heating system needs to be refilled. If your system is prepared for refilling, use it according to the installer instructions to increase the pressure to 1.5 bar. If your heating system does not have refilling valve, please contact your installer for further information.
Venting the heating system
After installation, it may take time to get all the air out of the heating
system. Air in the system can cause circulation failure or that not enough
heat is distributed in the house.
The system should be equipped with automatic air purging valve that separates
most of the air from the system. It is important to check the other air
purging valves that should be installed at the highest points in the system.
Carefully open the manual air purging valve and close when only water comes
out.
Time interval: beginning of each heating season. New installations may require
daily inspections, until the system is deaerated.
Cleaning of filters
The heat exchanger in the heat pump is sensitive to impurities in the water.
Filter (dirt-, magnetic) should be installed. Clean the filter according to
instructions from the filter manufacturer.
Time interval: in the beginning and in the end of each heating season. New
installations may require more regular cleaning of the filter.
Note: Besides regular maintenance, service should be made every second year or more regular due to local regulations.
Dear Customer!
We would like to thank you for reading this manual.
For more information, feel free to contact us.
Your ES team.
www.energysave.se
We reserve the right to make changes that do not impair the functionality of
the device.