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An air/water heat pump installation uses the outdoor air to heat up a home. The conversion of the outdoor air's energy into residential heating occurs in three different circuits. From the outdoor air, (1), free heat energy is retrieved and transported to the heat pump. The heat pump increases the retrieved heat's low temperature to a high temperature in the refrigerant circuit, (2). The heat is distributed around the building in the heating medium circuit, (3).
The temperatures are only examples and may vary between different installations and time of year.
Outdoor air
Refrigerant circuit
Heat medium circuit
S2125 is controlled in different ways, depending on your system. You control the heat pump via your indoor module or control module.
See the Installer Manual for the indoor module/control module.
During installation, the installation engineer adjusts the necessary settings for the heat pump in the indoor module or control module, so that the heat pump works optimally in your system.
Regular checks
When your heat pump is located outdoors some external maintenance is required.
Insufficient maintenance can cause serious damage to S2125, which is not covered by the guarantee.
CHECKING GRILLES AND BOTTOM PANEL ON S2125
Check regularly throughout the year that the grille is not clogged by leaves, snow or anything else.
You should be particularly vigilant during windy conditions and/or in the event of snow, as the grille can become LEK blocked.
Check that the back is free from dirt and leaves.
Also check that the drain holes in the bottom panel are free from dirt and leaves.
Regularly check that condensation is routed away correctly through the condensation pipe. Ask your installer for assistance if required.
Keep free of snow and ice
Prevent snow from building up and covering the grilles and drain holes on S2125.
Keep free of snow and/or ice.
CLEANING THE OUTER CASING
If necessary the outer casing can be cleaned using a damp cloth.
Care must be exercised so that the heat pump is not scratched when cleaning. Avoid spraying water into the grilles or the sides so that water penetrates into S2125. Prevent S2125 coming into contact with alkaline cleaning agents.
ACTUATING THE SAFETY VALVE (FL2)
The safety valve must be actuated regularly, to remove dirt and to check that it is not blocked. Remember to also check that the vent valve is working.
In event of long power cuts
In the event of prolonged power failure, we recommend draining the part of the heating system located outdoors. This is made easier if shut-off valves are installed. Ask your installer if you are uncertain.
NOTE! Also disconnect the non-return valve (RM1.2) to prevent the condenser from freezing.
Silent mode
The heat pump can be set to "Silent mode", which reduces the heat pump's noise level. This function can help when S2125 has to be placed in noise-sensitive areas. The function should only be used for limited periods, because S2125 might not reach its dimensioned power.
Fan de-icing
VVM S / SMO S
Menu 4.11.3 - Fan de-icing
VVM / SMO
Menu 4.9.7 - tools
FAN DE-ICING Setting range: off/on
CONTINUOUS FAN DE-ICING Setting range: off/on
Fan de-icing: Here, you set whether the "fan de-icing" function will be activated during the next "active defrosting". This can be activated if ice/snow sticks to the fan, grille or fan cone, which may be noticed due to abnormal fan noise from the outdoor unit.
"Fan de-icing" means that the fan, grille and fan cone are heated using hot air from the evaporator (EP1).
Continuous fan de-icing: There is the option to set recurring de-icing. In this case, every tenth defrosting will be "Fan de-icing". (This can increase annual energy consumption.)
Updating the software
Information about updating software can be found in the Installer Manual for your indoor module or control module.
In most cases, the indoor module/control module notes a malfunction (a malfunction can lead to disturbance in comfort) and indicates this with alarms and action instructions in the display.
Work behind covers secured by screws may only be carried out by, or under the supervision of, a qualified installation engineer.
If the operational interference is not shown in the display the following tips can be used:
BASIC ACTIONS
Start by checking the following:
Set the "Fan de-icing" function in the indoor module/control module. For more information, see the section "Control – Heat pump EB101" in the Installer Manual.
If problems arise, contact your installer.
For the latest version of the product's documentation, see www.nibe.co.uk.
Installation data
Product | S2125 |
Serial number | |
Installation date | |
Installer | |
Accessories |
Serial number must always be given.
Certification that the installation is carried out according to instructions in the accompanying installer manual and applicable regulations.
Symbols
Explanation of symbols that may be present in this manual.
This symbol indicates danger to person or machine.
NOTE!
This symbol indicates important information about what you should observe when maintaining your installation.
TIP!
This symbol indicates tips on how to facilitate using the product.
Serial number
The serial number can be found on the rear cover and at the bottom on the side.
NOTE!
You need the product's (14 digit) serial number for servicing and support.
Country specific information
UNITED KINGDOM
This installation is subject to building regulation approval, notify the local Authority of intention to install.
Use only manufacturer's recommended replacement parts.
For more information see www.nibe.co.uk.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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