CISTERN INSTALLATION INSTRUCTIONS
|The following are general instructions for the installation of all Imperial toilet pans, unless otherwise indicated.Note: Installation must be undertaken by a licensed plumber. If the cistern has not been installed in accordance with these instructions, the warranty may be invalidated, and service calls under warranty will be charged for.|
- Remove the cistern from the carton and ensure that it is undamaged.
- To remove the cistern lid, first unscrew the operating button anti-clockwise; for Novad cisterns, press in the sides of the cistern case below the lid as shown (Figure 1) to release the lid.
- Check that the outlet and inlet valves (and for close coupled suites the fixing bots) are firmly tightened to prevent leaks. Do not over tighten.
- Before fixing to non-structured walls, ensure that a suitable means of support has been provided before the wall is clad.
- Mark the centres of the fixing screws as shown (Figure 2).
- Drill holes for the fixing system selected appropriate to the construction of the wall.
- For Avon cisterns, loosely screw the fixing strip to the wall: check that the fixing bolts are in the correct position facing outwards before tightening (Figure 3).
- For NOVAD cisterns, insert the fixing screws but do not tighten fully.
- Loosely fix the cistern in place.
- Measure the distance of the pan inlet to the centre of the cistern outlet and add 25mm to this measurement to allow for the insertion of the pipe into the pan inlet. Cut the flush pipe to this length.
- Insert the keeseal into the pan inlet or fit the pan cone over the inlet and lubricate before inserting the flush pipe.
- For link cisterns, position the link under the cistern as far back as it will go. Mark a line square across the link in line with the centres of the seat bolt holes as shown (Figure 4). Remove the link piece and cut it to this length. Remove the cistern from the wall.
- Screw the link clamp nut onto the tail of the outlet valve seat and place the flush pipe coupling and the flush pipe seal over the flush pipe re-fitting the cistern. Ensure the flush pipe is horizontal before connecting and tightening the flush pipe coupling, link clamp nut and cistern screws. Do not over tighten.
- Fit the seat bolts into the seat bolt holes. Slide the seat into position engaging the seat bolts (and the link piece where fitted) into the hinge block of the seat. Centre the seat over the pan before tightening the wing nuts provided (figure 5).
For close coupled suites:
- Place the rubber seal over the outlet valve seat on the bottom of the cistern.
- Lower the cistern gently onto the pan, locating the fixing bolts into the matching bolt holes on the pan. Tighten the fixing nuts.
- Check that the cistern is level and mark the position of the holes for the cistern fixing screws.
- Remove the cistern and drill holes for the fixing system selected appropriate to the construction of the wall.
- Remount the cistern onto the pan and secure it with the nut and washer assembly supplied. Tighten the nuts alternating left and right until the cistern is mounted firmly and square onto the pan.
- Fix the cistern to the wall with screws and washers (not supplied). Ensure that the cistern is not pulled backwards as the seal with the pan may be broken.
Inlet valve connection Instructions for all cisterns:
- Flush the lines and connect the water supply to the inlet valve. Care should be taken when connecting the water supply line to the inlet valve that the copper tube is not inserted more than 13mm into the shank of the inlet valve to prevent constriction of the water flow.
- Fill the cistern. Make sure the inlet valve float cap does not come into contact with the cistern wall and that it moves up and down freely.
- Check that the valve shuts off at the correct level marked on the tank wall. Adjust water to the desired level by squeezing the clip adjuster together and moving the float cup up or down along the stainless link. The water level should be set approximately 25mm below the top of the overflow pipe. Check that the valve height is set so that the critical level mark on the valve body is located at 25mm above the overflow level in the tank.
- To adjust the valve height remove it from the cistern and twist the threaded shank in or out of the valve body. In replacing the valve inside the cistern, push down on the valve shank (not the upper black cap) while tightening the lock nut a turn above hand height. Alternatively, remove the upper cap assembly and twist the shank in situ.
- To clear any debris from the water line; with the water supply still shut off, remove the upper cap assembly by rotating it 1/8 turn counter clockwise and lift it off. Hold a container over the top of the uncapped valve to prevent splashing when the supply valve is turned on. Turn the water supply valve full on and off a few times to clear out any debris. Replace the upper cap assembly by engaging the lugs and rotating 1/8 turn clockwise to the stop. Turn on the water supply.
- Fit the cistern lid onto the tank. Secure the lid by screwing the opening button assembly into place.
- Check the operation of the full and half flush buttons.
- Check that there are no leaks.
Operation, cleaning and maintenance.
- Simply press the half flush button to save water or the full flush button as required. NOTE: both buttons travel down together, but the full flush button travels slightly further, and actuates the full flush.
- Clean the cistern case with the liquid detergent and a damp cloth.
- Do not place water additives in the cistern.
How to replace the outlet valve washer and if necessary, adjust the dual flush outlet valve.
- The outlet may be removed from the cistern by twisting it anti-clockwise at the base. It is a snap fit with the valve seat tail.
- To replace the outlet valve washer, twist off the washer-retaining clip, remove the old washer and snap on the replacement washer. The neoprene washer does not need a retaining clip, but must be fitted with the side marked Up uppermost.
- If adjustment of the height of the valve is necessary, disconnect the pull rod from the overflow tube by disengaging the safety lock. Lengthen or shorten the valve by twisting apart the upper and lower legs and re-setting so that the correct number is shown in the inspection window. If it is set too high the button assembly will not seat fully; if too low the toggle will not engage the button assembly.
- To set the pull rod correctly, pull it down so that the pull rod lever pushes the toggle upwards as far as possible. If this is not done, pressing the full flush bottom may not deliver a full flush. Reconnect the pull rod to the overflow tube, ensuring the tube and outlet valve washer is properly seated. If it is not seated, the valve will leak water into the pan.
- To adjust the half-flush, raise the float position upwards to reduce the quality flushed, or lower to flush a greater quantity of water.
- Replace the outlet valve assembly by re-engaging it with the valve seat tail, twisting at the base in a clock-wise direction. Ensure the half-flush float is on the opposite side of the overflow tube to the pull rod, and does not foul the cistern wall or the inlet valve.