MORRIS MDE-20210HI Dehumidifier 20l User Manual

MORRIS MDE-20210HI Dehumidifier 20l

SAFETY INSTRUCTIONS

Important The room area of this product should be more than 4m2 when it is used, repaired and stored.
This product needs to be used and stored where there is no fire source (such as electric heater at work, stove with open fire, etc.

• This product’s refrigerant may be odorless.

• Do not use any method to speed up the defrosting process or clean the frosted part.

• Carefully read the instructions before operating the unit.

• This appliance is for indoor use only and intended for use in a domestic environment only. Any other use is not recommended by the manufacturer and may cause fire, electrical shocks or other injury to user or property.

• Rating: This unit must be only connected to AC 220-240 V / 50 hz earthed outlet.

• Installation must be in accordance with regulations of the country where the unit is used.

• If you are in any doubt about the suitability of your electrical supply have it checked and, if necessary, modified by a qualified electrician.

• This dehumidifier has been tested and is safe to use. However, as with any electrical appliances – use it with care.

• Disconnect the power plug from the socket before dismantling, assembling or cleaning. Avoid touching any moving parts of the appliance.

• Never insert fingers, pencils or any other objects through the guard

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities. It is also not intended for use by
  those with a lack of experience and knowledge, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.

• Do not leave children unsupervised with this appliance.

• Do not clean the unit by spraying it or immersing it in water.

• Never connect the unit to an electrical outlet using an extension cord. If a power outlet is not available, one should be installed by a qualified electrician

• Never operate this appliance if the cord, power adapter or plug is damaged. Ensure the power cord is not stretched or exposed to sharp object/edges.

• A damaged power supply cord should be replaced by the manufacturer or a qualified electrician in order to avoid a hazard.

• Any service other than regular cleaning or filter replacement should be performed by an authorized service representative. Failure to comply could result in a voided warranty.

• Do not use the appliance for any other purposes than its intended use.

• Do not tilt the unit while in use. The unit is designed to work only in vertical position.

• This dehumidifier must always be stored and transported upright, otherwise irreparable damage may be caused to the compressor; if in doubt we suggest waiting at least 24 hours before starting the unit.

• Avoid restarting the dehumidifier unit unless 5 minutes have passed since being turned off. This prevents damage to the compressor.

• Never use the mains plug as a switch to start and turn off the dehumidifier. Use the provided ON/OFF switch located on the control panel.

• Always place the unit on a dry and stable surface.

• The appliance should not be installed in laundry or wet rooms where the humidity is higher than 85% Rh

• Do not dry laundry above the unit to prevent water entering the dehumidifier. Place the laundry at least 1 meter away from your dehumidier.

• Do not place the unit next to heat sources (e.g. electrical fires, fireplaces, etc.)

• Avoid mishandling the dehumidifier. Dropping, throwing the unit can cause damage to its internals and increases the risks of operating it.

• Do not store or use gasoline, petrol, paint, solvents or other flammable vapours or liquids in the vicinity of this dehumidifier or any other appliance.

• This dehumidifier must not be used in spaces where there is a high concentration of gases, solvent or other volatile organic compounds; in very dusty environments; in any domestic, commercial or industrial environment where air composition is flammable.

Energy Saving and Unit Safety Protection Tips

• Do not cover or restrict the airflow from the outlet or inlet grills. Do not operate and follow troubleshoot procedure if the self-opening louvers do not open on power on.
• For maximum performance the minimum distance from a wall or objects should be 20 cm.
• Keep the filters or grills of the unit clean. Under normal conditions, filters or grills should only need cleaning once every three weeks (approximately).
  Since the filters remove airborne particles, more frequent cleaning may be necessary, depending on the air quality. Vacuum both mesh and carbon filters and wash the mesh filters with hot soapy water and dry them before placing them back in the unit.

Quick visual safety guide on where or when not to use your dehumidifier.

INSTALLATION

Remove any water from the water tank before starting the unit. In order to save energy, do not open windows or doors while the unit is running. Place the unit on a hard/ flat surface. On first use, run the unit continuously for 24 hrs.

To reduce noise levels:
Place a piece of carpet or a rubber mat under the unit to reduce any vibrations while the unit is running.
MORRIS dehumidifiers use compressor technology to extract water from the environment.

The compressor dehumidifiers are ideal for normal domestic or office environments which are heated during the winter months with temperatures above 12-1.S°C. MORRIS
dehumidifiers are easy to move around on castors and intelligent dehumidifiers which will extract unwanted humidity while saving money due to their humidistat and power saving logic. MORRIS dehumidifiers feature an intelligent humidistat which is adjustable in increments of 5% from 40-80% RH insuring your room is not dried too much and power is not wasted.

Features
Your dehumidifier belongs to the the low energy premium dehumidifiers featuring low power consumption, power saving logic and advanced air purification option.

1. Easy to use controls.
2. Low energy only uses a fraction of the electricity of similar dehumidifiers.
3. Cost effective way to combat mould, condensation and damp.
4. Dries laundry more efficiently than a tumble dryer.
5. Designed to complement any modern space.
6. Castors for improved mobility.
7. Intelligent CPU controlled digital humidistat with 35-80% Rh and room humidity display.
8. Quiet vs turbo fan operation ensures the right balance between quiet operation and maximum dehumidification.
9. 24 hours start/ stop timer.
10. Tank operation or permanent drainage option with splash proof tank.
11. Tank full alarm & auto-stop function.

PARTS

CONTROL PANEL

POWER

Turn on/off the appliance.

MODE Button

Selectthe mode of the unit between: SMART/HIGH/ LOW /FAN. The unit will default to SMART mode the first time it is switched on and remains in this mode until another option is chosen.

SMART Mode – Desired humidity set to 50  –  55% relative humidity  and the fan is automatically adjusted depending on the current humidity level. The desired humidity cannot be changed in this mode.

HIGH/IOW Mode -Select the Fan speed, the desired humidity can then be adjusted using the Up and Down Buttons.

FAN Mode – No moisture will be extracted in this mode, which when used with filters will purify the air.the UV and ION can also be used in this mode to further improve the qualify of air emitted.

FAN Mode

FAN Mode: press “MODE” key to select “FAN”, and “FAN” indicator light comes on.Only the fan will run in this mode and not water is extracted.

SLEEP

Press the SLEEP key to activate the SLEEP mode. The indicator light will illuminate.

Enter the SLEEP MODE the device will work at low fan speed and low noise, The display is off and the unit makes an eco-dehumidifying.

Press the SLEEP key again to quit the SLEEP mode , then the device will work as per the last setting before the SLEEP mode.

If you want to turn off the humidity light on the front panel , make sure that you quit the SLEEP mode first,and then press the SLEEP key for 3 seconds, the humidity light on the front panel will be turned off. Press for another 3 seconds , the light will be turned on again.

HUMIDITY SETTING

Press UP/ DOWN key to select the desired relative humidity level, default relative humidity is 55%. If relative humidity 35% is selected, the compressor will not stop until the water tank is full.

TIMER (timer function)
Press timer to program time. “TIMER” lignt comes on while timer is being programmed. Before programming make sure that the timer function has not been activated (the light must be oft). The following timer programs are available.

a) Delayed power-on function (the appliance is in stand-by status) USE key”UP” and “DOWN” to set the time period (1-24 hours) The appliance will start once time reaches the set value.
b) Delayed power-off function (whilst the appliance is running) The appliance will stop once time reaches the set value.

LAUNDRY
Press this button, the function is turned on or off, the dry mode indicator is on/ off. Afrer the function is turned on, the front panel humidity display shows 35%, and the humidity is not adjustable; In this mode, the compressor does not stop and continues to run until the water tank is full or you turn off this function;

QUICK REFERENCE GUIDE

Power Key Press to turn the dehumidifier on and off.

Timer: select timer settings key then use + – keys to adjust the timer (1-24 hrs, start/ stopping timer). In power on mode the set number will represent the number of hours the unit will run for before turning off. This will remain unaffected if the unit goes in to defrost mode or the tank is emptied and then reinserted. In standby mode the set number represents the period in hours after which the unit will start. To cancel start/ stop mode press the timer key again.

Humidity Buttons: Press the Up + – Down buttons when the unit is displaying the current relative humidity to select the desired humidity level. The humidity level can be
set between a range of 35% RH (Relative Humidity) to 80% RH in 5% increments. Please note the desired humidity cannot be changed when the unit is in SMART mode.

SMART Mode: This is designed for maximum convenience as it maintains the room at an ideal domestic environment humidity level of 50-55% RH while saving electricity. This is the default  mode and is recommended for most users.
The compressor will work until the desired humidity is reached and then will stop;

Low Fan Mode: The fan will move the air around the room ensuring the entire air in the room is processed and the relative humidity correctly measured. This mode gives you the ability to adjust the desired humidity, while running the fan at a lower speed.

High Fan Mode: The fan will move the air around the room ensuring the entire air in the room is processed and the relative humidity correctly measured. This mode gives you the ability to adjust the desired humidity, while running the fan at the high speed, allowing more air to pass over the coils than in low fan speed.

When the humidity setting is finished, the appliance will operate according to the target setting humidity. When it reaches the target humidity (the selected humidity is 2%
lower than the user selected humidistat setting), the compressor stops running, the fan continues running for five minutes and then stops, and the swing will be shut down, but
the display retains. The unit shall keep this status for 30 minutes, then the swing and the fan open, and the fan starts running to test the current humidity. If it has reached the setting value, the compressor starts running. If the current humidity has not reached the setting value, the fan will be stopped after 5 minutes, swing shuts down. and shall again keep this status for 30 minutes, to make another cycle as listed above.
For dryer air/ laundry mode press the key and set to a lower percent value (e.g. 35-45%).

Laundry Mode: for the dehumidifier to operate continuously with maximum water extraction until the tank is full set the humidity level to 35%-50%RH. 35% is very dry and the unit will work until water tank is full as 35%RH is hardly achievable in a domestic environment. Set the fan to high on laundry mode and the louvres either to swing mode or to 45 degrees directing the airflow onto clothes/ laundry dryer. Do not place clothes directly over any of the dehumidifier vents. Make sure that there is nothing blocking the hot air exhaust air flow and for best results place the laundry within 1.5 meters of the dehumidifier.

Note: In the High/Low mode, though, if keys set humidity at 35%, and the machine is running clothes drying mode, and it will continue dehumidifying, even if the ambient
humidity is less than 35%, and the compressor will not shut down. This mode applies to drying clothes and other occasions. If permanent drainage pipe is fitted the unit will not stop operation. Humidity set to achieve room humidity of around 35%, good for quick drying boost on initial run or emergencies, laundry mode. Not recommended for long normal operation in domestic/ office environment. For allowing more moisture in the air, press the humidity control key and set to a higher percent value (e.g. 60-70%).

Humidity set to 50-55% RH; recommended setting, great for domestic operation and dry storage
Humidity set to 60% RH; great for personal comfort and applications where 50% RH is considered too dry
Humidity set to 70% RH; ideal for unoccupied properties or where economical run is needed without the need to go drier than 70% RH.

Other features and Indicators

Tank Full Light
The light will be on and the unit will beep when the tank is ready to be emptied, or when the tank is removed or not placed in the proper position. The water level control switch shuts off the dehumidifier when the tank is full, or when the tank is removed or not placed in the proper position. Empty and replace to resume operation.

Auto Defrost
The appliance will defrost automatically as programmed once the coil sensor detects that the temperature is too low, and the defrosting indicator will light up at the same time. Once defrosting has finished, the appliance will recover to the previous running mode.

Humidistat control and fan/compressor operation
When the selected humidity is 2% lower than the user selected humidistat setting; the dehumidifier’s compressor wil I be shut off automatically.
When the humidity is equal or higher than user selected humidity the compressor will restart once the 3 minutes delay compressor protection expires.

Auto-Restart
If the unit stops off unexpectedly due to the power cut, it will restart with the previous function selected automatically when the power resumes.

Power
After the unit has stopped, it is not recommended to resume operation for at least 10 minutes.
This is to protect the compressor. Operation can resume after this period lapses. When the unit is restarted there is a 3 minutes delay before the compressor will start.

Lightweight Portable Design on castors
The dehumidifier is built to be compact and lightweight. The castors on the bottom of the unit make it easy to move from room to room.

Your MORRIS dehumidifier is an advanced micro-CPU controlled device able of self diagnostics.
The LCD display may also show the error and protections codes.

Positioning the dehumidifier
A badly positioned dehumidifier will have little effect. In positioning the dehumidifier please ensure circulation of air in not restricted around the unit.

Allow at least 20 cm space around the unit.
This dehumidifier is designed only for indoor residential/ small office applications and any commercial or industrial use will invalidate the warranty.

Use in an enclosed area for maximum efficiency. Close all doors, windows to create an effective operating environment. Do not use outdoors. Your dehumidifier will begin to protect yours pace from the harmful effects of excessive moisture as soon as it is turned on 2acm-
Excess moisture is dispersed throughout your home. For this reason, the dehumidifier should be positioned in a central and clear location so that it can draw this moist air towards it from all over the home. A warm hallway or landing is an excellent position for your dehumidifier. If possible, leave interior doors ajar to allow air circulation.

Alternatively, if you have a serious problem in one area you can begin by positioning the dehumidifier there and moving it to a more central location at a later date. For the most
effective use, run your dehumidifier with external doors and windows kept closed. Please note the unit should not be placed directly against a radiator or other heat source.

When positioning your dehumidifier, ensure that it is placed clear of any obstacle that may limit the air movement Place the dehumidifier on a flat dry surface.
Note: Do not force castors to move over carpets or uneven surfaces, nor move the unit with water in the tank as it may tip over and spill water.

Water Drainage
When the water tank is full, the unit will stop automatically. When this happens the tank full light will show on the control panel.
Note: Only empty the water tank when it is full or before moving or storing the unit.
There are two ways to dispense collected water.

EMPTYING THE WATER TANK
Empty the water tank regularly when full, the air dehumidifier turns off automatically and the tank full indicator is turned on.

• Open the back cover of your device
• Hold the water tank by its handle
• Pull it out carefully
• Empty the water tank

Return the empty water tank to its position after wiping it off from any water residue.

NOTES:
When you remove the bucket, do not touch sensors or any parts which are situated behind the tank. Doing so may damage the product. Be sure to push the tank gently all the way into the unit. Banging the bucket against anything or failing to push it in securely into place may cause the unit to not operate.

Do not remove any parts from the water tank or tank enclosure. The water full sensor will no longer be able to detect the water level correctly and water may leak from the water tank.

CONTINUOUS DRAINAGE OPERATION
Your device has a drainage port that allows you to have continuous drainage. Connect a 10mm diameter PVC pipe (provided in the package) with the drainage port located on the back part of the unit, for continuous drainage purposes, as below figure. Ensure the hose is directed downwards, allowing water to flow by gravity to an external drain. Ensure that the end of the hose is lower than the drain opening, otherwise the water will not drain and flooding may occur.

Make sure the connection between the pipe and the drain outlet is tight and does not leak.
Then direct the pipe to a suitable drainage point. This unit uses gravity fall to dispose water hence the drain should be lower than the unit water outlet. Put the tank back. Be sure to run the water pipe downward and let the water to flow out smoothly. Do not kink or bend the pipe.

NOTE: When the continuous drain feature is not being used, remove the drain hose from the outlet.
The permanent drain can be used in conjunction with a water pump(e.g. when draining a cellar) to lift the water upwards.

Care and Maintenance

Always shut off the unit and unplug from the mains before cleaning or performing any maintenance. When it is not in use for long periods it is advisable to remove the plug from the power socket. Do not use chemical solvents (such as benzene, ~ alcohol or gasoline) as they may cause irreversible damage to the unit.

Clean the Grille and Case
Use water and a mild detergent to clean the washable mesh filters. Do not use bleach or abrasives. Do not splash water directly onto the main unit. Doing so may cause an electrical shock and can lead to the insulation to deteriorate, or cause the unit to rust. The air intake and outlet grilles get soiled easily, so use a vacuum attachment or soft brush to clean. Wipe the dehumidifier body with a soft damp cloth or kitchen towel.

Remove the ABS frame and pull out the filters from the frame. Hoover gently the carbon filter once every 2-3 weeks approximately.

If the mesh filter is dirty hoover it, if it is heavily soiled wash it with warm soapy water and dry thoroughly before reinserting it in the unit.

When filter cleaning is finished and filters are dry, place them back into the filter frame and reassemble the unit.

NOTE: While the carbon filter is of optional usage, never run the unit without the mesh filter frame being assembled back.

Clean the water tank
Every few weeks, clean the tank to prevent growth of mould, mildew and bacteria. Partially fill the tank with clean water and add a little mild detergent. Swish it around and then empty the tank and rinse.

NOTE : Do not use a dishwasher to clean the tank. After cleaning and drying, the tank must bereinserted securely into the dehumidifier in order to restart operation.

End of Season Maintenance:

1. Empty and clean the water tank.
2. Clean the unit and the filters as per the cleaning procedure listed above.
3. Coil the power cord on the special cord storage rest at the back of the unit
4. Cover the unit and keep it in a dry place.

Frequently Asked Questions

Why doesn’t the dehumidifier seem to extract much water if the temperature is low?
This is a compressor dehumidifier which works best in temperatures above 1S0C. If the temperature is low and the air is dryer than the setting on the humidistat the unit will not extract water. If you want to use a dehumidifier for outside buildings, unheated properties, boats or garages please check our desiccant range.

Why doesn’t the unit work/or stops suddenly?
The water tank may be full or displaced. To rectify: empty the tank and carefully place the tank back in the unit. Also the unit may be running in dehumidifying mode with a low room temperature. Please check if the room temperature is lower than S0C. If so, the unit will stop working while in dehumidifying mode. (unit may be defrosting).
The ambient operating range is between S°C and 3S°C with a relative humidity ranging from 30% to 80%. For maximum efficiency use the unit between 1S°C and 32°C.

Sometimes cold and/or hot air comes out from the air outlet grill, why?
When the unit is in dehumidifying mode it absorbs humid air from room and freezes it to reduce the humidity.
During the cold cycle there should be cold air coming out of the unit
During the hot cycle hot dry air should be coming out of the outlet grill.

Troubleshooting

dehumidifying mode it absorbs humid air from room and freezes it to reduce the humidity.

During the cold cycle there should be cold air coming out of the unit. During the defrost cycle hot dry air should be coming out of the outlet grill.

Unit does not operate

| Is the plug properly

inserted in the socket?

| Insert the plug into the socket and turn theswitch on.
Is tank full indicator lit?| Tank full, float displaced or tank not properly inserted. Empty tank, check float and make sure the tank is

properly inserted in unit.

Front louvres do not open| Louvre motor is blocked| Check if anything is blocking the louvre.

Try to move gently the louvre up and down while the unit is off. If theabove fails return the unit to a service centre.

Dehumidifier does not extract water| Is the unit set to a humidity level lower than the one in the

room?

| Set the humidity level on the humidistat below current humidity reading.
Is the temperature too low for water extraction to be

efficient?

| Increase the temperature in the room or reposition the unit.
Is any intake grill or discharge blocked? Is the unit too close to walls?| Remove obstructions and restart the unit.

Ensure a distance of at least 20 cm between the unit & walls

Airflow seems

weak

| Is the filter dirty or clogged?| Please service the filters regularly as per the user manual.
Unit is noisy during operation| Is the unit on uneven surface?| Please place on flat horizontal surface.
Is filter clogged?| Please service the filters regularly as per user manual.
E3orE4| Humidity sensor error| Use the unit within  the  prescribed humidity  range. Unplug the unit, rest and plug it back in. If the error repeats, call a service centre.
E1or E2| Temperature sensor error| Use the unit within the prescribed temperature range. Unplug the unit, rest and plug it back in. If error repeats, call for service centre.
ES or E6| Abnormal Coil sensor temperature or

current

| Use the unit within the prescribed humidity and temperature range.

Unplug the unit, rest and plug it back in. If error

repeats, call for service centre.

Defrost light on and unit stops regularly| Unit is defrosting| Allow the unit to automatically defrost. The protection will clear after the unit self defrosts. Increase the temperature in the room if this repeats too often
Tank full

light

| Water tank full notification| Tank is full or is not in the right position– Empty the tank and replace in the right position.
Any other malfunctions will need to be reported to the service centre. Do not attempt unauthorised repairs as these may invalidate the warranty.

PRODUCT REPAIR

Warning: The appliance should be stored in a well-ventilated room. The area of the room should be equal to the room area required for maintenance.

• Warning: Appliances should be stored in rooms where there is no continuous burning fire (such as ignited gas appliances) and ignition sources (such as electric heaters at work)
• All operators or refrigeration circuit maintenance personnel should obtain a valid certificate issued by an industry-approved assessment agency to determine their qualification for safe disposal of refrigerants as required by the industry-approved assessment specification.
• The maintenance and repair of the equipment can only be carried out according to the method recommended by the equipment manufacturer. If other professionals are required to assist in the maintenance and repair of the equipment, they should be supervised by personnel qualified to use flammable refrigerants.

1. Inspection of the site
   Prior to servicing with flammable refrigerants, a safety inspection must be performed to ensure that the risk of fire is minimized. When servicing the refrigeration system, the following precautions should be observed before handling the system.

2. Operating procedure
   Work should be performed under controlled procedures to ensure that the risk caused by combustible gases or vapors during operations is lowest

3. General working area
   All maintenance personnel and other personnel in the work area should be aware of the nature of the work being performed and should work within a confined space that should be avoided.
   The work area should be properly segregated to ensure the safety of working conditions in the work area by controlling combustible materials.

4. Check if the refrigerant is present
   Pre-operation and during operation should be monitored in the area using an appropriate refrigerant monitor to ensure that the technicians are aware of the presence of potentially flammable gases and that all leak detection equipment is suitable for flammable refrigerants, such as: no spark, fully enclosed Or intrinsically safe

5. Fire extinguisher placement
   When performing heat-processing operations on the refrigeration system or related components, the appropriate fire extinguisher should be located nearby and the refrigerant injection area should be equipped with a dry powder or carbon dioxide fire extinguisher.

6. Prohibition of fire
   When working in connection with exposed pipelines that contain or have contained ammable refrigerants, all forms of ignition sources that may cause fie or danger to the station should not be used. All sources of ignition, including smoking, are combustible The agent may be released into the surrounding environment. It must be far away from the area where it is installed, repaired, relocated or disposed. Before starting work, the surrounding environment of the equipment must be inspected strictly to ensure that there is no danger of flammability or fire, should set up the mark of “No Smoking”.

7. Ventilated area
   Ensure that the work area is open or fully ventilated before opening the system or performing hot work operations. Ventilation should be maintained during operation. Ventilation will safely dilute the leaked refrigerant and quickly release it into the atmosphere.

8. Inspection of refrigeration equipment
   If you replace electrical components, these electrical components should be installed in accordance with the day-to-day and night-time operating regulations. At all times, the manufacturer’s maintenance and repair guides should be followed. If in doubt, consult the manufacturer’s technical department.

The following inspection items apply to the installation of flammable refrigerant appliances:

• The charge should be determined according to the size of the room containing the refrigerant containing components;
• Ventilation equipment should operate normally and vents should be free from obstructions;
• If an inter-refrigeration refrigeration cycle is used, check the presence of refrigerant in the secondary circuit;
• The logo on the appliance should be clearly visible. Marks and symbols that are indelible;
• Refrigerating lines or electrical components should not be installed in environments that contain possible housing contact elements ,unless the electrical components are made of corrosion-resistant materials or suitable corrosion protection measures are taken.

lnsRectio of Electrica Installations
The repair and maintenance of electrical components should include initial safety inspections and component inspection procedures. If there is a defect that compromises safety, the appliance power supply must be de-energized until the defect is properly disposed of. If the defect cannot be completely eliminated in the end, and must continue to operate, then appropriate temporary solutions should be taken, report the situation to the owner of the appliance, and warn all relevant personnel.

The initial security check should include:

• Capacitor discharge should be performed in a safe manner to avoid sparks
• No exposed electrical components and wiring during filling, recycling and cleaning of the system
• Continuity of grounding

Maintenance of selling elements

1. When repairing closed components, disconnect the power supply of the device before opening the sealed cover. If there is power supply during the maintenance process,
   uninterrupted leak detection should be performed on the most dangerous parts to prevent potential dangerous situations from occurring.

2. In the following maintenance of electrical components, special care shall be taken not to cause maintenance methods affecting the degree of protection of the enclosure. Improper maintenance may result in damage to the cables, excessive connection, improper installation of the terminals, damage to the seals, and sealing. Cover installation error and other hazards Ensure the installation of the equipment is safe and reliable

Ensure that the sealing or sealing material does not lose its effect of preventing the entry of flammable gases due to aging, and the replacement parts should comply with the manufacturer’s specifications

Note: The use of silicon-containing sealants may reduce the detection capabilities of leak detection equipment, intrinsically safe components do not have to be isolated before operation

If it cannot be ensured that the appliance does not exceed the limits of the allowable voltage and current during use, no permanent inductance or capacitive load must be used in the circuit.
The essential Ankh-type element is the only element that can continue to operate within the flammable gas. The test instrument should be set in the correct gear.
If the replacement component can only use components specified by the manufacturer, other components may cause the refrigerant that is leaking in the air to catch fire .

Cable
Check the cable for wear, corrosion, overpressure, vibration, sharp edges or other adverse environmental effects. This inspection should also consider the impact of aging or the
continuous vibration of the compressor and fan on the cable manufacturing.

Inception of ammable refrigerants
Inspection refrigerant leakage should be done in an environment where there is no potential source of ignition and should not be detected using a halogen probe (or any other detector using an open flame)

Leak detection method
For systems containing flammable refrigerants, the following methods for detecting leaks are acceptable:
Electronic leak detectors can be used for the detection of flammable refrigerants, but the sensitivity may not be sufficient or may require recalibration (the instrument calibration should be performed in a refrigerant-free environment) to ensure that the leak detector does not become a potential The ignition source, and applies to the measured refrigerant, the leak detector should be set to the lowest flammable concentration of the refrigerant (in percent), calibrated with the used refrigerant and adjusted to the appropriate gas concentration test range (max. 25%)

The leak detection fluid is suitable for most refrigerants, but do not use oxygenated solvents to prevent oxygen and refrigerant from reacting and corroding the copper pipeline
If leakage is suspected, all open flames should be removed from the site or extinguished
If a leak occurs where welding is required, all refrigerant should be recovered, or the refrigerant should be completely isolated away from the leak (using shut-off valves). Before
welding and during welding, use oxygen-free. Nitrogen (OFN) purfies the entire system

Remove and vacuum
When performing maintenance or other operations on the refrigeration circuit, routine procedures should be followed, but the flammability of the refrigerant should also be
considered. Follow these procedures:

• Clear refrigerant
• Purge the line with inert gas
• Vacuum
• purge the pipe again with inert gas
• cutting pipelines or welding

Refrigerant should be recycled to a suitable storage tank. The system should be purged with oxygen-free nitrogen to ensure safety. This process may need to be repeated several times.
This operation must not be performed with compressed air or oxygen.
In the purging process, the system is filled with oxygen-free nitrogen to reach the working pressure under the vacuum state, and then the oxygen-free nitrogen is discharged to the atmosphere. Finally, the system is evacuated to a vacuum, and the process is repeated until the refrigerant in the system is completely removed. After the last charge of anaerobic nitrogen, the gas is released to atmospheric pressure and the system can then be welded. Such as pipe welding operations, the above operation is very necessary
Make sure there are no ignition sources near the outlet of the vacuum pump and that it is well ventilated.

Charge the refrigerant program
As a supplement to regular procedures, add the following requirements:

• Ensure that when using the refrigerant charging equipment, no inter-contamination between different refrigerants will occur, and the piping for charging the refrigerant should be as short as possible to reduce the residual amount of refrigerant therein
• Tanks should be kept vertically upward
• Ensure that the cooling system has been grounded before filling the refrigerant
• Label the system after filling (or when it has not been completed)
• Must pay attention not to overcharge

The pressure test was performed with oxygen-free nitrogen before recharging the system.
After the filling was completed, a leak test was performed before the test operation. A leak test should be conducted when leaving the area

Retired
Before proceeding with this procedure, technicians should be fully familiar with the equipment and all its features and recommend the practice of safe recovery of refrigerants. To recycle the recovered refrigerant, analyze the refrigerant and oil samples before performing the work.
Before testing, ensure that you have the necessary power supply.

• Familiar with the equipment and operation
• Disconnect the power
• Before proceeding with this procedure, ensure that:
  • If necessary, mechanical operating equipment should facilitate the operation of refrigerant storage tanks
  • All personal protective equipment is effective and can be used correctly
  • The entire recycling process should be conducted under the guidance of qualified personnel Recycling equipment and storage tanks should meet the appropriate standards
• If possible, vacuum the cooling system
• If the vacuum state is not reached, extraction should be performed from multiple places to extract the refrigerant in each part of the system
• Ensure that the volume of the tank is suf dent before beginning recovery
• Start and operate the recycling equipment according to the manufacturer’s operating instructions
• Do not talk about tanks being overfilled. (Liquid injection volume does not exceed 80% of the tank volume)
• The maximum working pressure of the tank must not be exceeded even for a short period of time
• After the tank filling is completed and the working process is completed, ensure that the tank and equipment are quickly removed and all shutoff valves on the equipment are closed
• The recovered refrigerant must not be injected into another refrigeration system until it has been purified and tested

Recycling
The refrigerant in the system needs to be removed during maintenance or scrap. It is recommended that the refrigerant be completely removed.
When loading the refrigerant into the tank, use only a dedicated refrigerant tank. It is necessary to ensure that the capacity of the tank is compatible with the amount of refrigeration injection in the entire system. All are tanks intended to be used for refrigerant recovery and are identified with this refrigerant (ie refrigerant recovery dedicated tanks). Tanks should be fitted with pressure relief and shut-off valves and in good condition. If possible, empty storage tanks should be evacuated and kept at room temperature before use.

The recovery equipment should maintain a good working condition, and the equipment operation instructions should be provided for easy reference. The equipment should be
suitable for the recovery of flammable refrigerants. In addition, there must be qualified weighing instruments that can be used normally. The hose should be connected using a leak free, releasable joint and keep it in good condition. Before using the recycling equipment, check whether it is in a good condition, whether it is well maintained, and all the electrical components are sealed to prevent the fire from leaking once the refrigerant leaks. If in doubt, consult the manufacturer.

Recovered refrigerant should be contained in the used storage tank, attached with shipping instructions and returned to the chiller manufacturer. Do not mix the refrigerant in the recovery equipment, especially the storage tank.

If you remove the compressor or remove the compressor oil, make sure that the compressor is evacuated to a suitable level to ensure that there is no residual flammable refrigerant in the lubricant. Evacuation is performed before the compressor returns to the supplier. Only use electric heating to heat the compressor housing to speed up this process. When the oil is discharged from the system, safety should be ensured.

Technical data

NOTICE ABOUT RECYCLING
Your product is designed and manufactured with high quality materials and components which can be recycled and reused.
This symbol means that electrical and electronic equipment, at their end-of- life, should be disposed of separately from your household waste.
Please dispose of this equipment at your local community waste collection/ recycling centre.
In the European Union there are separate collection systems for used electrical and electronic products.
Please help us to conserve the environment we live in!

DECLARATION OF CONFORMITY
Herewith, we state that this product, complies with the requirements of below directives:
EMC-Directive: 14/30/EU
Low Voltage Directive: 14/ 35 / EU
ROHS directive: (EU)15/863
CE Marking: 93/68/EEC
The detailed declaration of conformity can be found at www.morris.gr

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