TOTO MS8341CUMFG Neorest RS Dual Flush 1.0 and 0.8 GPF Elongated Toilet Instruction Manual
- June 12, 2024
- TOTO
Table of Contents
TOTO MS8341CUMFG Neorest RS Dual Flush 1.0 and 0.8 GPF Elongated Toilet
Product Information
The product is a toilet bowl unit designed for installation in bathrooms. It comes with various parts and components necessary for proper installation and usage. The user manual provides detailed instructions for installers to ensure correct installation and safe usage of the product. It is important to read the manual carefully and follow all instructions to prevent injury, and damage to property, and ensure the longevity of the product. The manual includes safety cautions and precautions that should be observed before and during installation. These cautions highlight potential risks and provide guidelines to avoid accidents or damage.
Product Usage Instructions
Water Supply:
- For water supply from the wall, use a 1/2 NPT connection.
- For water supply from the floor, push while pulling F-2 towards you. Secure the hook in place by pulling on C-9 and fixing the hook.
Installation:
- Use the included or specified parts for installation work to ensure proper installation.
- Follow the installation manual provided to carry out the installation work correctly and prevent water leaks.
Precautions:
- Avoid subjecting the toilet bowl to strong forces or impacts to prevent breakage and potential injury.
- Do not excessively bend or twist the water supply hose to avoid leaks that may damage property.
- Do not remove the water supply filter with the water supply valve open to prevent water gushing out and causing leaks.
Note: The manual contains additional information and instructions not covered in this response. It is essential to refer to the complete user manual for comprehensive guidance on the installation and usage of the product.
For installers
This cautionary note is excerpted from the section that requires special
attention. Read the installation manual carefully for details, and install the
product correctly according to the instructions. Push the water supply hose
for the Washlet to the rear of the water supply hose for the toilet bowl.
Failure to fit the water supply hose (F-3) for the Washlet may result in A-2
coming off. 
See the reverse side for the installation manual.
Install C-9 before attaching the toilet to the drainage socket. If you do
not, it will be impossible to flush the toilet bowl during a power outage
.
- This flushing ring is used in the event of a power outage. Do not use (pull) it during installation. Doing so mav cause water to continue to flow into the toilet bowl during test operation./
- By oulling the manual water supoly cord (orange) until it stons. vou can togale the flow of water to the toilet bow on and off./
- See page 16 of the installation manual.
Safety Cautions (Observe these cautions for safety’s sake.)
Read these “Safety Cautions carefully before starting installation work.
Install the product properly. This manual uses various indications to ensure a
proper, safe installation and to prevent injury to the customer, injury to
other people and damage to property. The symbols should be interpreted as
follows.
Caution: Improper use or installation of this product may result in
injury or property damage.
Caution
| Do not subject the toilet bowl to strong forces or impacts.
Otherwise, the toilet bowl may break causing injury or leaks that may damage property.
Do not excessively bend or twist the water supply hose.
Otherwise, the flexible water supply hose may break causing leaks that may damage property.
Do not remove the water supply filter with the water supply valve open.
If the water supply valve is not closed, water may gush out causing leaks that may damage property.
| Be sure to use the included or specified parts for installation work.
Otherwise, the product may not be installed properly.
Carry out the installation work according to this installation manual.
Otherwise, damage caused by water leaks may occur.
Precaution before installation
- Exercise care to ensure that metal objects (wristwatch bands, belt buckles, A-2 magnets, etc.) do not come into contact with the ceramic during installation, transport, or cleaning.
- Such objects could rub the surface of the ceramic and leave stripe marks. Secure the space required for toilet installation and at the same time, check door opening/closing for possible interference.
- The remote control signal reception may be degraded and the NEOREST unit may not respond to the remote control if there are shelves or cabinets on the rear wall at a height of less than 1400 mm (55-1/8 “) from the floor. (Shelves and storage cabinets should be more than 1400 mm (55-1/8 “) from the floor.)
- Make sure before installation that the water supply source and water drain pipe are in the specified positions according to the diagram. If it is not positioned properly, the product may not be able to be installed correctly.
- For water supply, ensure that the minimum required water pressure (flowing) is 0.05 MPa at 10 L/min. (while maximum water pressure is 0.75 MPa)
- The product automatically measures water pressure conditions in the operating environment during toilet bowl cleaning and adjusts the volume of toilet bowl flush water used
- Turn on electricity and water supply to the product after completing all installation work.
Included parts
D-3 is affixed on the backside of A-2. The product may be slightly different in shape than the product shown in the figure depending on the model.
Part diagram
This manual uses illustrations of a floor water supply for explanatory purposes. The floor flange, Nut, Washer, T-bolt and sealant are not included.
Installation procedure
Caution: Be sure to install the shutoff valve (with filter)
(B-2) included with the toilet. Dirt contamination could cause shutoff or
discharge defects.
- Install B-1 to B-5. Apply sealing tape to the screw threads and install.
- Orient B-1 and B-2 properly. If the fixture is not oriented properly, A-2 may not be attached or may come off.
Caution: If using water supply from the wall, do not use B-1. If using
water supply from the wall, using B-1 could cause water to spray that could
result in flooding damage to property, such as household belongings.
Caution: 〈For water supply from the floor〉 If there is a gap between the
straight pipe and the floor, fill it with mold-resistant silicone-based seal
material (Mediseal), and then attach a cover seal(B-5). Doing otherwise may
cause water to leak downstairs.
Set so that the sealant does not enter the drainage channel area (in the hatched area). Doing otherwise may cause inadequate flushing./
Rear surface of floor flange connection area *The figure is for a metal flange.
- Securely fit the head of C-3 into the hexagonal hole of C-1. If it is not inserted completely, the toilet bowl may be unstable.
- When installing, be careful that the wire does not get pinched between the floor and discharge socket./
Caution Be sure to install C-9.
If you do not, it will be impossible to flush the toilet bowl during a power
outage.
Review and check the following: After installation, did you verify that
C-9 will not come off the base? /
This flushing ring is used in the event of a power outage.
- Do not use (pull) it during installation.
- Doing so may cause water to continue to flow into the toilet bowl during test operation./
By pulling the manual water sunolv cord (orange) until it stops you can trade the flow of water to the toilet bowl on and off.
Do not pull the C-9 strap or cause it to be pinched by the toilet bowl.
Install the top unit according to Installation Manual included with the top unit.
Verify that the washlet water supply hose (F-3) is positioned behind the toilet bowl water supply hose (F-2).
〈For water supply from the floor〉If F-3 is positioned in front of F-2, push F-3 behind F-2 and push F-2 towards the toilet bowl.
Verify that the hoses are not touching A-2. Contact with the hoses could cause A-2 to become detached.
Install aligned with the toilet bowl upper surface and toilet bowl side surface, so that there are no noticeable gaps with the toilet bowl.
- Press down firmly on the three magnets and verify that A-2 does not become detached.
- If A-2 exhibits any gap or float, refer to the figure to the left and verify the position of the water supply hose.
- If there is any gap or float, A-2 or the metal sheet could become detached from A-1, preventing installation.
- After the trial-run (flush) of the toilet bowl, check the toilet bowl inside for foreign matter such as chips of cut pipe, etc. Foreign matters such as transmitted rust can stick to the sides.
- Make sure that there are no scratches or other damage on the ceramic surface. If the ceramic surface is tightly pressed or rubbed against metals (watchbands, belt buckles, A-2 magnets, etc.), black or silver streak marks may be left on the surface.
- After installation, unseen dirt (oil or adhesive for piping) may remain in the toilet bowl.
- Be sure to wipe it off using a non-abrasive neutral detergent for toilets. Otherwise, the toilet bowl surface may not flush completely clean.
- Confirm that there is no noticeable gap between A-1 and A-2 and that A-2 is not misaligned. If there is a gap or A-2 is misaligned, A-2 or the metal sheet could become detached from A-1, preventing installation.
- After conducting a test run, confirm that no connections are leaking water.
- Not installing the properly may cause water leaks that could result in flooding damage to property, such as household belongings. After test operation, make sure to clean the water filter with the shutoff valve closed.
- Remove the water filter using D-3 or a tool such as a ratchet wrench, and clean the filter.
- Make sure to open the shutoff valve after cleaning the filter.
（This code is for manufacturer management use.）
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>