S735 - Heat pump Nibe - Free user manual and instructions

USER MANUAL S735 Nibe

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SHB 2243-3

531821

Exterior view of a modern stainless steel refrigerator with black and white panels (no visible text or symbols)

Svenska

Säkerhetsinformation

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning us of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning a user maintenance shall not be made by children without supervision.

This is an original manual. It may not translated without the approval of NIBB Rights to make any design or technical modifications are reserved.

©NIBE 2022.

The safety valves must be actuated regularly to remove dirt and to check that they are not blocked.

Electrical installation and wiring must be carried out in accordance with national provisions.

S735 must be installed via an isolator switch. The cable area has to be dimensioned based on the fuse rating used.

S735 is equipped with electrically powered safety measures. To be eective, S735 must be electrically powered at all times after installation, other than when servicing.

If the supply cable is damaged, only NIBE, its service representative or similar authorised person may replace it to prevent any danger and damage.

			MaxMi
System pressure
Heating medium	MPa(bar)	0.05(0.5)	0.25(2.5)
Domestic water	MPa(bar)	0.01(0.1)	0.9 (9)
Temperature
um^2			7010°
2			703°C

1 UK: 0.6 (6.0 bar)
2 Compressor and additional heat

Do not start S735 if there is a risk that water in the system has frozen.

Water may drip from the safety valve. A factory-tted overow pipe runs from the safety valve to an overow cup. An over-ow pipe has to be routed from the over

ow cup to a suitable drain. The entire length of this overow pipe is inclined to prevent water pockets, and it must also frost-proof.

General

EU

NIBE hereby declares that this type of radio equipment F0001-X-XXX, F0002-X-XXX conforms with Directive 2014/53/EU. The full text of the EU Declaration of Conformity can be found at nibe.eu.

UKCA

NIBE hereby declares that this type of radio equipment F0001-X-XXX, F0002-X-XXX conforms with Directive The Radio Equipment Regulations 2017. The full text of the UKCA Heating media informity can be found at nibe.co.uk.

Recovery omestic water

Leave the disposal of the packaging to the installer who installed the product or to special waste stations.

Do not dispose of used products with normal household waste. It must be disposed of at a special waste station or dealer who provides this type of service.

Improper disposal of the product by the user results in administrative penalties in accordance with current legislation.

Open source code

This product contains software covered by an open source code licence. For more information as well as access to the source code, visit opensource.nibe.eu.

Handling

The heat pump contains highly ammable refrigerant. Special care should be exercised during handling, installation, service cleaning and scrapping to prevent damage to the refrigerant system and thus reduce the risk of leakage.

NOTE

Work on refrigerant systems must be carried out by personnel who have knowledge and experience of working with flammable refrigerants.

Safety precautions

WARNING!

Do not use agents to speed up the defrosting process or for cleaning, other than those recommended by the manufacturer.

The apparatus must be stored in a room with no continuous ignition sources (e.g. naked ame, an active gas installation or an active electric heater).

Must not be punctured or burned. Be aware that the refrigerant may be odourless

GENERAL

Pipe installation should be kept to a min um.

AREA CHECKS

Before work is started on systems that contains combustible refrigerants, safety checks must be performed to ensure that the ignition risk is kept to a minimum.

WORKING METHOD

The work must be carried out in a control way to minimise the risk of contact with combustible gas or liquid during the work

GENERAL FOR THE WORKING RANGE

All maintenance sta and those who work in close proximity to the product must be instructed which type of work is to be

ried out. Avoid carrying out work in enclosed spaces. The area surrounding the worksite must be cordoned off. Ensure that the area is made safe by removing combustible material.

CHECK FOR THE PRESENCE OF REFRIGERANT

Check whether there is refrigerant in the area using a suitable refrigerant detector prior to and during work, to notify the service technician whether there is a possible ammable atmosphere or not. Ensure that the refrigerant detector is suitable for combustible refrigerant, i.e. does not generate sparks or cause ignition in any other way.

PRESENCE OF FIRE EXTINGUISHERS

helf hot work is carried out on the heat pump, a powder or carbon dioxide fire extinguisher must be to hand.

ABSENCE OF IGNITION SOURCES

a Pipes connected to the unit must not contain potential sources of ignition.

Those who carry out work with refrigerant system connections, including exposing pipes that contain or have contained combustible refrigerant, may not use potential ignition sources in such a way that can lead to risks of re or explosions.

All potential ignition sources, including cigarette smoking, should be kept at a safe distance from the service work area where combustible refrigerant can leak out. Before carrying out work, the area surrounding the equipment must be checked to ensure that there are no ignition risks. "No smoking" signs must be displayed.

VENTILATED AREA

Ensure that the work is carried out outdoors or that the work area is ventilated before the system is opened and before any hot work is carried out. The area must be ventilated whilst the work is being carried out.

There must be ventilation around any refri- gerant that comes out, which should be Pouted outdoors.

CHECKING COOLING EQUIPMENT

If electrical components are replaced, the replacement parts must be t for purpose and have the correct technical specifications. Always follow the manufacturer's guidelines regarding maintenance and servicing. Contact the manufacturer's technical department in the event of any doubts

The following checks must be carried out for installations that use combustible refrigerants.

• The actual lling quantity is appropriate for the magnitude of the space where parts containing refrigerant are installed
- Ventilation equipment and outlet work correctly and without obstructions.
- If an indirect refrigerant circuit is used, check whether the secondary circuit contains refrigerant.
- All markings of equipment are visible a clear. Markings, signs and similar that a not clear must be replaced.
- Refrigerant pipes and components are positioned in such a way that it is not likely that they be subjected to substances that can corrode components containing refrigerant, if these components are not made of material that is distant against corrosion, or not appropriately protected against such corrosion.

CHECKING ELECTRICAL EQUIPMENT

Repair and maintenance of electrical components must include initial safety checks and procedures for component inspection! In the event of a fault, which can cause safety risk, do not supply any power to the circuit until the fault has been rectied. If the fault cannot be rectied immediately, and operation must continue, an adequate temporary solution must be implemented. This must be reported to the equipment owner, so that all parties have been informed.

The following checks must be carried out at the initial safety checks.

• That the capacitors are discharged. Dis-
  e charging must be done safely, to prevent
  e the risk of sparking.
• That no powered electrical components or live cables are exposed when lling or collecting refrigerant or when the system is ushered.

"That the system is continually earthed.

REPAIRING SEALED COMPONENTS

When repairing sealed components, all electrical supply must be disconnected from the equipment that is being repaired before any sealed covers or similar are removed. If it is absolutely necessary to have an electricity supply to the equipment during the service, continuously activated leak tracing must be performed at the most critical points in order to warn of any dangerous situations.

Pay particular attention to the following so that the sheath is not changed in a way that aects the protection level when working with electrical components. This means damage to cables, unnecessary amounts of connections, terminals that do not follow the original specifications, damaged gas-kets, incorrect grommets etc.

Ensure that the apparatus is secured properly.

Check that seals or sealing materials have not deteriorated to a degree that they can no longer prevent combustible gases from entering. Replacement parts must meet the manufacturer's specifications.

NOTE

Use of silicone seals can hamper the eciency of certain types of leak-tracing equipment. Components with built in safety do not need to be isolated before starting work.

WIRING

Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental eects. The check shall also

take into account the eects of aging or continual vibration from sources such as compressors or fans.

LEAK TESTING

The following leak detection methods are deemed acceptable for systems containing ammable refrigerants.

Electronic leak tracers must be used to tect combustible refrigerant; but the leak tracer may not be suciently sensitive or may need to be recalibrated (the leak tr

cing equipment must be calibrated in an area completely free from refrigerant). The leak tracer must not be a potential source of ignition and must be suitable for the relevant refrigerant. The leak tracing equipment must be set and calibrated for the relevant refrigerant, to ensure that the g concentration is a maximum of 25% of the lowest combustible concentration (Lower Flammability Limit, LFL) of the relevant refrigerant.

Leak detection uids are suitable for use with most refrigerants but the use of de-gents containing chlorine shall be avoided as the chlorine may react with the refrig-ant and corrode the copper pipe-work.

If a leak is suspected, all naked ames shall be removed/extinguished.

If a leak that requires brazing is detected all refrigerant must be removed from the

system and stored in a separate container Ensure that dierent refrigerants are not Alternatively, the refrigerant can be stored mixed when lling equipment is used. separated from the brazing area in a part Hoses and lines must be as short as pos-of the system at a safe distance from the able to minimise the enclosed refrigerant leak, if this part of the system can be dis volume.

connected safely with shut-o valves. The system must be emptied in accordance with the section "Removal and draining".

REMOVAL AND DRAINING

When a cooling circuit is opened for rep- or for another reason- work must be ried out in a conventional manner. Due the risk of re it is important that best practice is applied. Follow the procedure below.

1. Remove the refrigerant

2. Flush the circuit with inert gas.

3. Drain the circuit.
4. Flush through with inert gas.
5. Open the circuit by cutting or brazing.

Collect the refrigerant in the intended cylinders. Clean the system with oxygen-free nitrogen to make the unit safe. This process may need to be repeated several times. Compressed air and oxygen must not be used.

Clean the system by breaking the vacuum with oxygen-free nitrogen, and lling the system to working pressure, relieving the pressure to atmospheric pressure and -nally pumping to vacuum. Repeat the process until no refrigerant remains in the system. After the nal lling with oxygen-free nitrogen, relieve the pressure in the system to atmospheric pressure, so that work can be carried out. This type of ush-ing must always be carried out if hot work is to be performed on the pipe system.

Ensure that the vacuum pump's outlet is not near to any potential ignition sources and that there is satisfactory ventilation by the outlet.

PILLING

In addition to the conventional lling procedures, the following actions must be taken.

- Containers must be stored in a suitable position in accordance with the instructions.

- Ensure that the cooling system is grounded before the system is lled with refrigerant.

• Mark the system once lling is complete (if not already marked). If the amount differs from the pre-installed amount, the

marking must include the pre-installed 8. amount, the added extra amount and the total amount.

- Take extra care not to overll the cooling system.

1. Do not overll the containers (max. 80 he % (volume) liquid content).

2. Do not exceed the containers' maximum of permitted working pressure - not even temporarily.

Before relling the system, pressure test it ^10 with oxygen-free nitrogen. Leak test the system after lling but before using the system. Perform an additional leak test before leaving the installation.

^10 . When the containers have been lled correctly and the process is complete, close all shut-o valves in the equipment and remove and containers and equipment from the installation immediately.

DECOMMISSIONING

Before the device is taken out of operation, the technician must without exception be very familiar with the equipment and all its component parts. Good practice prescribes that all refrigerant is collected safely. Before the collected refrigerant can be reused, oil and refrigerant samples must be taken if analysis is required. There must be a power supply when this task is started.

1. The collected refrigerant must not be ion, lled in any other system before being cleaned and checked.

Marking

The equipment must be marked stating that it has been taken out of operation and drained of refrigerant. The marking must be dated and signed. Check that the equipment is marked indicating that it

1. Familiarise yourself with the equipment contains combustible refrigerant and its use.
2. Isolate the system electrically.

3. Before starting the procedure, ensure that:

4. necessary equipment for mechanical handling of the refrigerant container is available

5. all necessary personal safety equipment is available and used correctly

6. the collection process is continuous supervised by an authorised person
   • the collection equipment and containers meet appropriate standards.

7. Pump the refrigerant system to vacuum if possible.

8. If it is not possible to pump to vacuum manufacture a branch, so that the re- gerant can be retrieved from dierent parts of the system.
9. Check that the refrigerant container is on the scales before starting to collect
10. Start the collection device and collect according to the manufacturer's instructions.

Collection

Best practice prescribes that all refrigerant is collected safely when the refrigerant is drained from a system, either for servicing or for decommissioning.

The refrigerant must only be collected in suitable refrigerant containers. Ensure that the required number of containers, which can hold the entire volume of the system, are available. All containers that are to be used must be intended for the collection of the refrigerant and marked for this refrigerant (specifically designed for the collection of refrigerant). The containers have to be equipped with correctly functioning pressure relief valves and shut-o valves. Empty collection containers must be drained and, if possible, chilled before collection.

The collection equipment must function correctly and instructions for the equipment must be to hand. The equipment must be suitable for the collection of combustible

refrigerant.

Fully functioning and calibrated scales must maintenance and repair that requires the also be to hand. skill of another person must be carried out Hoses must be in good condition and be under the supervision of someone with the equipped with leak-proof quick couplings. above expertise.

Before using the collecting machine, check that it is working correctly and has been properly maintained. Associated electrical components must be sealed, to prevent ignition if any refrigerant should leak out. Contact the manufacturer if you are in any doubt.

Return the collected refrigerant to the refrigerant supplier in the correct collection container and with the relevant Waste Transfer Note. Do not mix refrigerants in collection devices or containers.

If compressors/compressor oil are/is to be removed ensure that the aected device is drained to an acceptable level to ensure that no combustible refrigerant remains in the lubricant. Compressors must be drained before being returned to the supplier. Only electrical heating of the compressor housing may be used to quicken draining. Drain oil from the system in a safe manner.

MISCELLANEOUS

Maximum amount of refrigerant: See Technical Specifications in the Installer Manual.

• Everyone who works with or opens a refrigerant circuit must have a current, valid certificate from an accredited industry issuing body, which states that, according to the industry's recognised assessment standard, they have the authority to safely handle refrigerants.
• Servicing must only be performed according to the equipment manufacturer's recommendations.

Maintenance and repairs that require the assistance of another trained person must be carried out under the supervision of person with the authority to handle combustible refrigerants.

Suomeksi

Turvallisuustiedot

POISTAMINEN JA TYHJENNYS

GENERELT FOR ARBEIDSOMRÅDET

ABSENCEDESOURCESD'INFLAMMATION

NIBE Energy Systems France SAS

Zone industrielle RD 28

NIBE Energy Systems Ltd

3C Broom Business Park,

Bridge Way, S41 9QG Chestereld

Tel: [phone]

[e-mail]

nibe.co.uk

NIBE-BIAWAR Sp. z o.o.

Al. Jana Pawla II 57, 15-703 Bialystodd. 8, Yuliusa Fuchika str.

Tel: [phone]

biawar.com.pl

EVAN

ddd. 8, Yuliusa Fuchika str.

603024 Nizhny Novgorod

Tel: [phone]

[e-mail]

nibe-evan.ru

SWEDENRUSSIAPOLAND

NIBE Energy Systems

Box 14