Opella Torbeck Variflush - User Manual

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drop valve
installation guide • fitting instructions
• Adjustable height
• Push button cable control
• Dual flush with full
& partial adjustment
• Internal overflow
• Easy to install:
Fits most cisterns
• Made in the UK
STAGE 3
Testing and adjustments
To adjust full flush water volume, rotate the float down to increase the volume of water
flushed, or upward to reduce it.
To adjust partial flush water volume, slide lever at variflush base to the left to decrease the
volume of water flushed, or to the right to increase it.
Ensure desired flush is achieved prior to refitting lid.
For servicing of the variflush valve
the base of the unit remains in place.
Simply separate the unit by twisting as
in stage 2 of the fitting instructions.
Please retain these instructions
for reference.
Opella Limited
Twyford Road, Rotherwas Industrial Estate, HEREFORD HR2 6JR, England.
t: +44 (0) 1432 357331 f: +44 (0) 1432 264014 w: www.opella.co.uk e: sales@opella.co.uk
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2
3
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2
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** Some cisterns have a larger
diameter hole for the button
please see this diagram.
CISTERN
LF00139

Summary

Stage 1 Pre-installation

Turn off water supply and remove lid

Turns off water supply and removes the cistern lid to begin installation.

Mark normal water level

Marks the cistern's normal water level while it is still full.

Flush cistern and remove water

Empties the cistern completely using a sponge or cloth.

Disconnect flush pipe

Detaches the existing flush pipe from the cistern.

Remove old siphon and handle

Removes the old flush mechanism and external handle/button.

Stage 2 Fitting your Torbeck Variflush valve

Separate the drop valve

Twists the variflush drop valve clockwise to separate its components.

Install the valve base

Fits the valve base into the cistern, ensuring a watertight seal.

Re-assemble the valve

Rejoins the valve components by rotating them anti-clockwise.

Adjust overflow height

Sets the overflow height to 25mm above the waterline and locks it.

Connect flush button and cable

Attaches the flush button and secures the cable end assembly.

Refit flush pipe

Reattaches the flush pipe to the cistern.

Turn on water supply

Restores water supply to the cistern after fitting.

Stage 3 Testing and adjustments

Adjust full flush water volume

Adjusts the volume of water for a full flush by rotating the float.

Adjust partial flush water volume

Modifies the water volume for partial flush using a lever.

Ensure desired flush

Confirms the desired flush volume has been achieved before reassembling.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Pre-installation (Stage 1)
5. Fitting (Stage 2)
6. Testing and Adjustments (Stage 3)
7. Maintenance Features
8. Additional Notes

The Torbeck® Variflush® drop valve is a plumbing innovation designed for cisterns, offering a dual-flush mechanism with adjustable features and ease of installation. It is a Made in the UK product, WRAS approved, and suitable for most cisterns.

Function Description:

The primary function of the Torbeck® Variflush® drop valve is to control the flushing of water from a cistern in a toilet system. It incorporates a dual-flush system, allowing users to choose between a full flush and a partial flush, contributing to water conservation. The valve is operated via a push-button cable control, which activates the flushing mechanism. An internal overflow feature is integrated to prevent overfilling of the cistern.

Important Technical Specifications:

• Dual Flush System: Offers both full and partial flush options.
• Adjustable Flush Volumes: Both full and partial flush water volumes are adjustable.
• Adjustable Height: The valve's height can be adjusted to fit various cisterns. The overflow tube height is adjustable to 25mm above the waterline.
• Cable Control: Operated by a push-button cable mechanism for reliable activation.
• Internal Overflow: Prevents water from overflowing the cistern.
• Compatibility: Designed to fit most cisterns.
• Material: The base of the unit remains in place for servicing, suggesting a modular design.
• Origin: Made in the UK.
• Approvals: WRAS approved.

Usage Features:

Pre-installation (Stage 1):

1. Water Supply Shut-off: Before installation, the water supply to the cistern must be turned off, and the cistern lid removed.
2. Water Level Marking: While the cistern is still full, the normal water level should be marked on the inside of the cistern. This helps in setting the overflow height later.
3. Cistern Emptying: The cistern needs to be flushed and all remaining water removed using a sponge or cloth.
4. Disconnection of Flush Pipe: The existing flush pipe must be disconnected.
5. Removal of Old Components: The old siphon and any existing handle or button need to be removed.
6. Valve Positioning Note: It is crucial to ensure that the top of the new variflush valve is positioned below the lowest overflow point of the cistern, including all apertures, to prevent potential overflow issues.

Fitting (Stage 2):

1. Valve Separation: The variflush drop valve is separated into two main parts by twisting clockwise.
2. Base Installation: The base of the valve is fitted into the cistern. A black sealing washer must be inside the cistern to ensure a watertight seal. For close-coupled cisterns, it might be necessary to reduce the length of the threaded outlet by 10mm using a hacksaw. The nut should be tightened with a spanner.
3. Valve Re-assembly: The variflush valve is re-assembled by matching the bayonet fitting and rotating anti-clockwise. It's important to ensure the float remains free to operate after re-assembly.
4. Overflow Adjustment: The overflow tube is twisted anti-clockwise to adjust its height to 25mm above the marked waterline, then twisted clockwise to lock it into place.
5. Button Installation: The flush button is fitted into the cistern, and the cable end assembly is snapped onto the push-button spindle. The cable must be free to operate and lift the overflow tube when depressed.
6. Flush Pipe Re-fitting: The flush pipe is re-fitted.
7. Water Supply Activation: The water supply is turned on.

Testing and Adjustments (Stage 3):

1. Full Flush Volume Adjustment: To adjust the full flush water volume, the float on the valve is rotated. Rotating it down increases the volume of water flushed, while rotating it upward reduces it.
2. Partial Flush Volume Adjustment: To adjust the partial flush water volume, a lever at the variflush base is used. Sliding the lever to the left decreases the volume of water flushed, and sliding it to the right increases it.
3. Pre-Lid Flush Check: Before refitting the cistern lid, it is essential to ensure that the desired flush performance is achieved for both full and partial flushes.

Maintenance Features:

• Modular Design for Servicing: For servicing the variflush valve, the base of the unit remains in place. The unit can be separated by twisting, similar to the initial fitting instructions (Stage 2, step 1), allowing for easy access to internal components without removing the entire valve base from the cistern.
• Retain Instructions: Users are advised to retain the instructions for future reference, which is crucial for troubleshooting and maintenance.

Additional Notes:

• Some cisterns may have a larger diameter hole for the button, and a diagram is provided to address this.
• The instructions emphasize the importance of a watertight seal and proper cable operation for optimal performance.

Opella Torbeck Variflush Specifications

General

Brand	Opella
Model	Torbeck Variflush
Category	Control Unit
Language	English