Anslut 416121 - Heat Exchanger Cleaning and Gas Refilling; Refrigerant Gas Refilling

EN
115
• Move the unit to a more suitable place if the anges show
signs of corrosion.
The heat exchanger anges get covered in dust or other
impurities in time, which aects the eciency. Clean the heat
exchanges according to the instructions below 2 times a year.
1. Remove dust and dirt from the anges with a vacuum
cleaner.
2. Clean the anges with water and a soft plastic brush. Do
not use a high-pressure jet. If the outdoor unit is used in
dirty or oily environments it should be cleaned by qualied
personnel using the stipulated detergent.
3. Allow the outdoor unit to dry.
CLEANING THE HEAT EXCHANGER
• Turbulence in the heat exchanger normally keeps the ducts
clean. However, in certain applications deposits can form, for
example in operations with very hard water and a high
temperature. In these cases, the heat exchanger can be
cleaned if cleaning uid circulates through it (CIP, Cleaning
In Place).
• When connected to a radiator system, the heating system
must be cleaned before connection to the heat pump.
• The connection of magnetite and Sy-Klon lters to the
heating system’s return line is recommended.
• Use a container with phosphoric acid 5 % or, if the heat
exchanger is cleaned more frequently, with oxalic acid 5 %.
• Pump the cleaning uid through the heat exchanger.
• The work should be carried out by qualied personnel.
GAS REFILLING
If the heat pump does not contain enough refrigerant it will
not work eciently. Note the following points before lling
refrigerant.
• The work should be carried out by qualied personnel.
• Check before relling that the copper pipes are not leaking.
Repair any leaks, or replace the pipes, before relling.
• Do not overll with refrigerant, this can cause problems such
as overpressure and low eciency.
• Only use refrigerant of the R410A type.
• The refrigerant system must not contain any air, this can
cause abnormal overpressure, which can damage the gas
pipes reduce eciency.
• Evacuate and ventilate the room if refrigerant leaks out.
• Never use pipes of any other material than copper as gas
pipes.
FROST PROTECTION
To prevent the water freezing and damaging the heat pump,
avoid switching o the heat pump unnecessarily when the
outdoor temperature is below 0°C. Allow the heat pump to run
or be in standby mode.