Coway P-220R User manual

P-220R/L

P-220R/L

Table of Contents
1. Precaution
1-1 Precautions on electricity................................................................................1-1
1-2 Precautions on installation..............................................................................1-2
1-3 Precautions on use .........................................................................................1-3
1-4 Precautions on services..................................................................................1-4
2. Product characteristics and specifications
2-1 Product characteristics....................................................................................2-1
2-2 Major specifications.........................................................................................2-2
2-3 Dimensions .....................................................................................................2-3
3. Product installation
3-1 Installation materials .......................................................................................3-1
3-1-1 Parts.....................................................................................................3-1
3-2 Installation method..........................................................................................3-2
3-2-1 Precautions on installation ...................................................................3-2
3-2-2 Installing the product............................................................................3-4
3-3 How to use......................................................................................................3-5
4. Disassembling and refitting
4-1 Disassembling and refitting information..........................................................4-1
4-1-1 Disassembling and refitting information ...............................................4-1
4-1-2 Necessary tools....................................................................................4-1
4-2 Disassembling and reassembling the product ................................................4-2
4-2-1 Disassembling the Top-Cover Assembly..............................................4-2
4-2-2 Disassembling the Filter Assembly.......................................................4-5
4-2-3 Disassembling the Main PBAAssembly...............................................4-6
4-2-4
Disassembling the Room Water-Faucet Assembly,
Room Water-Valve Assembly and CTS Water Level-Sensor Assembly
.....4-7
4-2-5 Disassembling the Side-Cover Assembly.............................................4-9
4-2-6 Disassembling the Feed Nos-Valve Assembly.....................................4-12

Table of Contents
5. Troubleshooting
5-1 Checking faults by symptom...........................................................................5-1
5-1-1 Power failure (for AC 220 V).................................................................5-1
5-1-2 A water filtration failure or a water overflow..........................................5-3
5-2 Control Specifications .....................................................................................5-5
5-2-1 Basic Specifications .............................................................................5-5
6. Exploded view and parts list
6-1 Exploded view and parts list............................................................................6-1
7. Parts location diagrams
7-1 Electrical wiring diagram.................................................................................7-1
7-2 Cable Specification .........................................................................................7-2
7-3 Water piping diagram......................................................................................7-4
7-3-1 P-220R.................................................................................................7-4
7-3-2 P-220L..................................................................................................7-4
7-4 PBA location diagram......................................................................................7-5
7-4-1 MAIN PBA............................................................................................7-5
7-4-2 SMPS PBA...........................................................................................7-7
8. Circuit diagrams
8-1 MAIN PBA.......................................................................................................8-1
8-2 SMPS PBA......................................................................................................8-2
9. Reference information
9-1 Names of each part.........................................................................................9-1
9-2 Functions and reference information...............................................................9-2
9-2-1 Types and functions of filters................................................................9-2
9-2-2 Water Filtration Process.......................................................................9-4
9-3 After services ..................................................................................................9-5
9-3-1 Filter Replacement...............................................................................9-5
9-3-2 Filter Replacement Method..................................................................9-6
9-3-3 Cleaning Method..................................................................................9-8

Coway co., Ltd 1-1
Precaution
1. Precaution
1-1 Precautions on electricity
1. Do not use a damaged power plug or loose electric outlet.
- Otherwise electric shock or fire may occur as a result.
2. If the product is not used for an extended period of time, close the feed water supply valve and
unplug the unit.
- Otherwise electric shock or fire may occur as a result.
3. Do not unplug the unit by pulling the power cord or touch the power plug with a wet hand.
- Otherwise short circuit, electric shock, or fire may occur as a result.
4. Do not forcefully bend the power cord or run it under a heavy object to prevent it from being
damaged or deformed.
- Otherwise electric shock or fire may occur as a result.
5. If the electric outlet is wet, carefully unplug the unit and let the electric outlet completely dry before
subsequent use.
- Otherwise electric shock or fire may occur as a result.
6. Unplug the unit before repair, inspection, or parts replacement.
- Otherwise electric shock may occur as a result.
7. Do not plug into an outlet or power strip that is being used by several other appliances.
Use an outlet dedicated to the unit.
- Otherwise fire may occur as a result.
8. Do not attempt to repair or modify the power cord.
- Otherwise electric shock or fire may occur as a result.
9. Remove any dust or water off the power plug.
- Otherwise electric shock or fire may occur as a result.
10. Do not plug and unplug the unit repeatedly.
- Otherwise electric shock or fire may occur as a result.
11. If the electric outlet is wet, carefully unplug the unit and let the electric outlet completely dry before
subsequent use.
- Otherwise electric shock or fire may occur as a result.
The precautions are for consumers to use the product safely and correctly and for service
personnel to prevent accidents or risks in repairing the product. Please read the precautions
carefully and abide by them.

1-2 Coway co., Ltd
Precaution
1-2 Precautions on installation
1. Do not install the product where the unit is exposed to direct sunlight or heating devices.
- Otherwise product deformation or fire may occur as a result.
2. Do not install the unit in areas where moisture, water(rainwater) is present.
- Otherwise electric shock or fire may occur as a result.
3. Do not operate the unit in areas where flammable gases or combustible materials are used or stored.
- Otherwise fire may occur as a result.
4. Install the unit on a level area and do not exert excessive force or shock on the unit.
- Otherwise product damage or malfunction may occur as a result.
5. Use tap water as feed water.
6. Do not connect the water inlet to the hot water supply pipe
- This may result in a problem with the product or an accident. (Make sure to connect it to the cold
water supply pipe.)
7. Make sure that the feed water inlet hose connected to the product from the feed water supply valve is
5m or less.
- Failing to do so may result in a performance degradation of the product.
8. Do not install the potable water drain hose at a height of 25 cm or more from the bottom of the
product.
- This may result in a performance degradation of the product or there may be some additional
water as a result.
9. Proper places to install the unit
- Install the unit firmly on a level area. If the unit is installed in an unstable place, the system may
not function properly.

Coway co., Ltd 1-3
Precaution
1-3 Precautions on use
1. Immediately after the installation, fill up the water tank and drain the water. Repeat this at
2. If water has been stored in the water tank for a long time without using the unit, completely drain the
water and clean the tank. In the case the tank cannot be cleaned, drain the water once again before
use.
3. In order to have clean potable water, replace filters regularly.
- If filters are overused beyond their service life, the quality of the purified water may deteriorate.
4. Keep the surrounding area neat and clean the insides of the water tank once every two months.
5. Do not place a heavy object or exert excessive pressure on the top of the product.
6. Do not exert excessive shock on the product.
7. When cleaning the water tank, use the water extraction faucet in front of the product to drain the
water from the water tank.

1-4 Coway co., Ltd
Precaution
1-4 Precautions on services
Before the service
1. Do not let consumers disassemble, repair, or modify the product.
- Otherwise electric shock, fire, or product damage may occur as a result.
2. To prevent the risk of electric shock, unplug the unit before checking and repairing the unit.
- Before checking or repairing the unit, make sure to discharge the electrical unit of PBA.
Otherwise, high-voltage electric shock may occur as a result.
3. When disconnecting the power cord from the electric outlet, make sure to do so by pulling the power
plug, not the power cord.
- If the power cord is damaged, electric shock or fire may occur as a result.
- Do not pull out the power plug from the electric outlet with a wet hand.
During the service
1. During the service, check for damage, deformation, or deterioration of the power plug and the electric
outlet.
- If any abnormality is found, repair or replace the power plug or electric outlet to prevent electric
shock or fire.
2. During the service, completely remove dust or foreign materials from electrical units, wiring units, and
connections.
- It is to prevent fire caused by short circuit.
3. Check whether there is moisture on the electrical parts and power plug.
- If moisture is found, replace the parts or remove the moisture completely.
4. When replacing electrical parts, make sure to use proper parts.
- Check the model number, rated voltage, and rated current of the electrical parts.
5. During a repair, make sure that the harness wiring is fixed firmly.
- If the harness wiring is defective, in may cause abnormal noise and malfunction of the unit.
6. When disassembling and refitting the unit with its side touching the ground, perform the job on a
working cloth.
- Without the working cloth, the product may get scratches.

Coway co., Ltd 1-5
Precaution
After the service
1. After the service, check the overall assembly status and terminal connection of parts.
- If the wiring is under pressure or the connection of parts is defective, reassemble the unit.
2. Make sure that internal electrical wiring is not touching sharp parts of moving parts or electrical
equipment.
- Otherwise, product malfunction, short circuit, or fire may occur as a result.
3. Connect the electricity and check that the unit operates properly before let the consumer use the
product.
- Make sure to inform the consumer of the malfunction and repair details.

1-6 Coway co., Ltd
MEMO

Product characteristics and specifications
Coway co., Ltd 2-1
2. Product characteristics and specifications
2-1 Product characteristics
2-way filtrated water extraction system
This is convenient as users can extract filtrated water from either
the left or the right faucet.
preventing the
secondary pollution
preventing the
secondary pollution
A built-in bottle design that ensures convenience
The extraction part has been designed with general water bottles in
mind ensuring convenience.
preventing the
secondary pollution
preventing the
secondary pollution
Fixed quantity extraction function
This is convenient as users can extract an exact amount of water
for approximately 1 minute.
preventing the
secondary pollution
preventing the
secondary pollution
Sealed bucket for preventing the secondary pollution
It is the hygienic by applying the extra sealed structure to the
storage tank to prevent the secondary pollution due to the dust,
bucks, and other foreign body intrusion.
preventing the
secondary pollution
preventing the
secondary pollution
An antibacterial system
An antibacterial filter has been adopted to suppress the growth of
microbes in the water tank.
preventing the
secondary pollution
preventing the
secondary pollution

Product characteristics and specifications
2-2 Coway co., Ltd
2-2 Major specifications
Basic specifications
Model P-220R P-220L
Filtration Method RO(Reverse Osmosis)
Power Supply Refer to the rating plate.
Power Consumption 22 W 15 W
Major Functions Room Water Function
Tank Capacity Room Water 5.0 L
Dimension 235 mm(W) X 404 mm(D) X 400 mm(H)
Net Weight 8.5 kg 6.3 kg
Effective Water Amount 6 600 L
Production Rate 76.8 L/d(25 °C, 138 kPa)
Working Pressure 69 kPa – 827 kPa 138 kPa – 827 kPa
Working Temperature 5 °C - 35 °C
The water amount can be differentiated according to the water pressure and the water temperature.
The water tank capacity is the amount by the size and can be different from the extraction capacity.
Without any prior notice, all or parts of the product are subject to change for the purpose of improving
the performance of the product.

Product characteristics and specifications
Coway co., Ltd 2-3
2-3 Dimensions
P-220R/L [235 mm(W) X 404 mm(D) X 400 mm(H)]
404 235 404
400

2-4 Coway co., Ltd
MEMO

Product installation
Coway co., Ltd 3-1
3. Product installation
3-1 Installation materials
3-1-1 Parts
Accessories Items Remark
Drain Hose
Antibacterial Filter

Product installation
3-2 Coway co., Ltd
3-2 Installation method
3-2-1 Precautions on installation
The water tank capacity of this water purification system has been designed for home use. It is
prohibited to install the system for medium/large business or public use. (If the water purification
system is used beyond its capacity, a water shortage and/or shortened filter life may occur as a
result.)
Install the product at least 10 cm away from the wall and on a firm and level floor.
Installation water pressure
- P-220R: A tap water pressure of 69 kpa or more
- P-220L: The feed water supply pressure should be at least 137 kpa for the purification system to
work properly, to provide enough purified water.
The Installation distance from the tap water supply
- If the tap water pressure is 137 kPa or less
:The height should be less than 3 m and the distance should be less than 5 m.
- If the tap water pressure is 137 kPa or more
:The height should be less than 3 m and the distance should be less than 25 m.
Do not install the system in a location exposed to direct sunlight, freezing temperatures or excessive
moisture.
If the system is installed for the first time or is being relocated, read the User Manual again before
installation.
Only connect the power cord to the voltage rating that matches it on the rating plate.
Make sure to connect the feed water inlet hose to the cold water pipe.
- If the feed water inlet hose is connected to the warm water pipe with a water temperature of 40 °C
or higher, the filters may be damaged.
Immediately after the installation, fill the water tank and drain the water.
Repeat at least twice before use.

Product installation
Coway co., Ltd 3-3
Flushing the filters (when installing the product, replacing the filter or providing customer service)
- Neo-sense filter/Innocence filter
: Close the valve (feed water valve) of the installation adapter.
Separate the product and the feed water line.
Connect the tube connected to the installation adapter to the filter to be flushed.
Open the feed water valve to flush the filter. (1 min)
Never tap the filter to prevent damage to the block.
- Membrane filter (RO)
: Close the valve (feed water valve) of the installation adapter.
Separate the product and the feed water line.
Connect the tube connected to the installation adapter to the filter to be flushed.
Install the non-potable water valve to the membrane filter. (It is installed by default.)
Open the feed water valve to flush the filter. (5 min)
- Membrane filter (UF)
: Close the valve (feed water valve) of the installation adapter.
Separate the product and the feed water line.
Connect the tube connected to the installation adapter to the filter to be flushed.
Open the feed water valve to flush the filter. (3 min)

Product installation
3-4 Coway co., Ltd
3-2-2 Installing the product
Follow the instruction for installation
Main water
supply valve
voltage rating that
matches it on the
rating plate.
Main water
supply valve
voltage rating that
matches it on the
rating plate.
Connect the orange color inlet tubing 1to the tap
water supplying pipe.
Connect the outlet tubing(P-220R/L) 2.
Inlet tubing (Orange)
Outlet tubing (Blue, P-220R/L) 2
1

Product installation
Coway co., Ltd 3-5
3-3 How to use
To drink the room water
When you push the cup-touch lever, you can drink the room water.
Explanation Reference picture
1. To extract a fixed amount of water
If you press the fixed quantity extraction button, the
water bottle is filled with a fixed amount of water for
approximately 1 minute.
Press the fixed quantity extraction button again to stop
the water extraction.
2. To extract water
Push the cup-touch-lever of the faucet to extract
filtrated water.
Only connect the power cord to the voltage rating that matches it on
the rating plate.

3-6 Coway co., Ltd
MEMO