Waterdrop WD-UA - User Manual

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Figure 5 Figure 6

②

Faucet hose

Outlet hose

Faucet hose

Note: If a female threaded connector is needed, please contact our service team for help.

Check the leaks and ﬂush the ﬁlter

1. If water leakage occurs, turn o the water supply. If the water leakage is occurring at position 1 and 2,

wrap Teon tape on the external thread. If the water leakage is occurring at position 3 or 4, insert the

quick-connect tting to the end and make sure the hoses hit the bottom of the tting.

2. Flush the lter for 5 minutes before use.

To disconnect

Use your thumb and index nger to press down on the lock sleeve. Use your other hand to pull out the

hose from the tting.

Note: Please do not pull out the tubing directly, or else it will damage the tting and cause leakage.

Press

Pull

Press

Inlet hose

ColdHot

Outlet hose

Filter system

Faucet hose

3 4

Step 2: Connect the water supply (cold water only)

1. Connect the inlet hose and the outlet hose to the lter head. (Figure 1)

Note: When the hose is tightly inserted, there will be a 1/8 inch gap between the hose and the lter

head, which is designed for easy replacement and won't aect the sealing performance.

2. Shut o the water supply. Remove the faucet hose. (Figure 2)

3. Connect the inlet hose to the cold water valve.

• If the angle valve outlet is 3/8”, it can be directly connected to the water supply. (Figure 3)

• If the angle valve outlet is 1/2”, connect it with a No.1 converter at rst. (Figure 4)

Figure 3

Figure 1

Figure 4

Figure 2

3/8” outlet

1/2” outlet

Connect

①

to the cold angle valve

①

Step 3: Connect to the faucet

1. If the angle valve outlet is 3/8”, it can be directly connected to the water supply. (Figure 5)

2. If the angle valve outlet is 1/2”, connect it with a No.2 converter at rst. (Figure 6)

Inlet hose outlet hose

Installation of the ﬁlter system

Step 1: Fix the ﬁlter head and the ﬁlter

1. Paste the assistant label to nish drilling. (Note: Mount the water lter at

least 2 inches higher than the ground for easier lter change.)

2. Install the screw and reserve enough space to hang the lter.

3. Hang the lter system on the screw.

Direct Connect Undersink Water Filtration System

WD-UA system | Installation Instructions

Note:

1. If using well water as the source, please make sure the feed water has been through a pre-ltration system, otherwise,

large particles in well water will clog the lter easily and shorten lter life.

2. The above form lists model numbers of only black lters. Please note that the white lter is dierent from the black

lter only in color. They have the same lter material and ltration capacity.

3. Actual lter life varies according to local water quality.

Precautions

• Do not use it with water that’s microbiologically unsafe or of unknown quality without adequate disinfection.

• For use only with cold water.

• Do not freeze the lter, as this can cause cracking and water leakage.

• Do not allow children under 3 years old to have access to small parts during installation of this product.

• This installation must comply with all applicable state and local regulations.

• Turn o the water supply while replacing the lter.

Inlet hose

Outlet hose

Teﬂon tape

Filter head

3/8”-1/2” converter

Operating temperature

Working pressure

Flow rate

Filter capacity

2-38℃/35-100℉

10-100psi (0.7-6.8bar)

0.75gpm (2.83lpm)

Speciﬁcations

System certied by WQA against NSF/ANSI Standards 42 for the reduction of the claims

specied on the Performance Data Sheet, and to NSF/ANSI 372 (≤0.25% lead).

Feed water requirement Municipal tap water

WD-RF10/WD-RF10-UF/MZ/AK: up to 11,000 gallons

WD-RF15/WD-RF15-UF/MZ/AK: up to 19,000 gallons

WD-RF17/WD-RF17-UF/MZ/AK: up to 24,000 gallons

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Summary

Waterdrop WD-UA System Installation

Filter System Installation Steps

Steps for fixing the filter head, connecting the water supply, and connecting to the faucet.

Check for Leaks and Flush Filter

Procedure to check for water leaks and flush the filter for 5 minutes before use.

Disconnect Filter System

Instructions on how to safely disconnect the filter system tubing by pressing the lock sleeve.

Product Specifications and Precautions

Specifications

Technical details including operating temperature, working pressure, flow rate, and filter capacity.

Precautions

Important safety guidelines and usage warnings for the water filter.

Filter Replacement and FAQs

Filter Replacement Procedure

Instructions for turning off water, removing the old filter, and installing a new one.

Frequently Asked Questions

Answers to common issues like water leaks, TDS levels, black water, and filter life.

Quality Assurance and Performance Data

1-Year Quality Assurance

Details on the limited warranty for mechanical parts and filter service life.

Performance Data Sheet

Certified substance reduction data for Chlorine, Taste, and Odor, and NSF/ANSI compliance.

The Waterdrop Direct Connect Undersink Water Filtration System (WD-UA system) is designed to provide filtered cold water directly from your existing faucet, offering a convenient and space-saving solution for improved water quality. This system is certified by WQA against NSF/ANSI Standards 42 for the reduction of specified claims on the Performance Data Sheet, and to NSF/ANSI 372 (≤0.25% lead), ensuring its effectiveness and safety.

Function Description

The system works by connecting directly to your cold water line under the sink, filtering the water before it reaches your faucet. It is designed to reduce chlorine taste and odor, as well as lead, and other substances as specified in the Performance Data Sheet. The filtration process aims to remove harmful substances while retaining beneficial trace elements, providing cleaner and better-tasting water for drinking and cooking. It is important to note that the primary purpose of this filter is not to remove Total Dissolved Solids (TDS); for physical removal of TDS, a Waterdrop RO system would be more appropriate.

Important Technical Specifications

The system operates within a temperature range of 2-38°C (35-100°F) and a working pressure of 10-100psi (0.7-6.8bar). It delivers a flow rate of 0.75gpm (2.83lpm). The filter capacity varies depending on the model:

WD-RF10/WD-RF10-UF/MZ/AK: up to 11,000 gallons
WD-RF15/WD-RF15-UF/MZ/AK: up to 19,000 gallons
WD-RF17/WD-RF17-UF/MZ/AK: up to 24,000 gallons

The system requires municipal tap water as feed water. If well water is used, it must first pass through a pre-filtration system to prevent large particles from clogging the filter and shortening its life. The filter materials and filtration capacity are consistent across black and white filter models, with color being the only difference.

Usage Features

Installation: The installation process involves three main steps:

Fixing the filter head and the filter: An assistant label helps with drilling, ensuring the water filter is mounted at least 2 inches higher than the ground for easier filter changes. Screws are used to secure the filter head, and the filter system is then hung on the screws.
Connecting the water supply (cold water only): The inlet and outlet hoses are connected to the filter head. A 1/8 inch gap between the hose and the filter head is normal and designed for easy replacement without affecting sealing. The water supply is shut off, and the existing faucet hose is removed. The inlet hose is then connected to the cold water valve. Depending on the angle valve outlet size (3/8" or 1/2"), a converter (No.1) may be needed for 1/2" outlets.
Connecting to the faucet: Similar to the cold water valve connection, the faucet connection may require a No.2 converter if the angle valve outlet is 1/2".

Leak Check and Flushing: After installation, it's crucial to check for leaks. If leakage occurs at threaded connections (positions 1 and 2), Teflon tape should be applied. If leakage occurs at quick-connect fittings (positions 3 or 4), ensure the hoses are fully inserted to the bottom of the fitting. The filter must be flushed for 5 minutes before initial use to remove any carbon powder.

Disconnection: To disconnect a hose, press down on the lock sleeve with your thumb and index finger while simultaneously pulling out the hose with your other hand. Avoid pulling the tubing directly to prevent damage to the fitting and potential leakage.

Precautions:

The system is designed for use with cold water only.
Do not use with microbiologically unsafe water or water of unknown quality without adequate disinfection.
Freezing the filter can cause cracking and water leakage.
Small parts should be kept out of reach of children under 3 years old during installation.
Installation must comply with all applicable state and local regulations.
Always turn off the water supply when replacing the filter.

Maintenance Features

Filter Replacement: Filter replacement is a straightforward process:

Turn off the water supply and open the faucet to release water pressure.
Rotate the filter 1/4 turn to the left to remove it.
Remove the protective cap from the new filter.
Install the new filter by rotating it 1/4 turn to the right, ensuring the filter's triangle mark aligns with the connection mark.
Turn on the cold water valve and flush the new filter for 5 minutes.

Replacement Schedule: The filter's service life depends on water quality and usage. It is recommended to replace the filter if the flow rate significantly reduces or if the water develops a peculiar smell. The recommended service life for different models is:

WD-RF10, WD-RF10-UF, WD-RF10-MZ, WD-RF10-AK: 1 year
WD-RF15, WD-RF15-UF, WD-RF15-MZ, WD-RF15-AK: 2 years
WD-RF17, WD-RF17-UF, WD-RF17-MZ, WD-RF17-AK: 3 years

Quality Assurance: The system comes with a 1-year quality assurance for mechanical devices with moving parts, such as water fittings, filter head, and faucets. This assurance covers defects within 1 year from the date of purchase, provided the product has not been subjected to tampering, alteration, or improper use. Filter cartridges are not covered by this assurance as their service life varies based on local water conditions and consumption. For any issues or defects within the assurance period, customers should contact Waterdrop customer service.