Bristan SK1850- SK1850-2 Original Betriebsanleitung

Service Instruction

Service InstructionService Instruction

Service Instruction

Thermostatic Cartridge

Thermostatic CartridgeThermostatic Cartridge

Thermostatic Cartridge

SK1850

SK1850SK1850

SK1850-

The following literature will guide you through servicing and regulating the temperature of your shower valve.

Removal of the cartridge

Removal of the cartridgeRemoval of the cartridge

Removal of the cartridge

1. Turn off both water supplies to the shower valve.

. Remove the centre cap / indice from the centre of the temperature control handle.

3. Remove the centre retaining screw.

4. Remove the temperature control handle assembly.

5. Remove the circlip and then pull off the flow control handle.

6. Once removed pull off the body sleeve which will expose

the cartridge.

7. Having removed all controls from the valve, removal of the

cartridge will require a large 46mm adjustable spanner.

Unscrew the cartridge anti

Unscrew the cartridge antiUnscrew the cartridge anti

Unscrew the cartridge anti-

-clockwise.

clockwise.clockwise.

clockwise.

8. Having unscrewed the cartridge, it will expose both the thermostat

and piston assembly. The piston sits/rests on a loose spring, when

servicing the valve clean off any debris/dirt on the piston and apply

a thin layer of silicon grease around the clear cylindrical part of the piston

to ease the movement, in doing so this will allow the

thermostat to regulate the temperature.

Before starting any servicing please isolate your water supply b

Before starting any servicing please isolate your water supply bBefore starting any servicing please isolate your water supply b

Before starting any servicing please isolate your water supply by either;

y either;y either;

y either;

1. Turn the water off at the mains supply stopcock

1. Turn the water off at the mains supply stopcock 1. Turn the water off at the mains supply stopcock

1. Turn the water off at the mains supply stopcock

. Turn the water of at the isolations valves to the shower

. Turn the water of at the isolations valves to the shower. Turn the water of at the isolations valves to the shower

. Turn the water of at the isolations valves to the shower

WARNING

9. Now that the cartridge is removed from the valve in order to service

the cartridge you will need to remove the large circlip which is situated

between the top of the Brass nut and the bottom of the exposed spindles.

10. Having removed the circlip push the top of the spindle through the

brass nut which will expose the remainder of the cartridge. There is

an O ring in the flow nut, It is important that this is replaced and greased.

11. To dissemble the cartridge you will need to use an adjustable

spanner. Place this onto the hexagon shaped nut and slide a

metal rod or screwdriver through the rectangular slots. Unscrew

the half cartridge anticlockwise.

1 . When the half cartridge has been removed from the top half

you will then need to remove the smaller circlip placed on the

smaller spindle being the temperature control.

Replace all visible O rings.

13. Once the circlip has been removed, push the small

spindle through the remainder of the cartridge, then

replace all visible O rings, then reverse action

in re-assembling cartridge and control assembly.

14. Now that all of the seals have been replaced and re greased the cartridge will need to be re assembled.

Re assemble the spindle following the below drawings.

15. Push the brass nut back onto the cartridge and replace the circlip.

16. Screw the cartridge back into the valve body using the 46mm

adjustable spanner.

17. Replace the body sleve and control handles, Replace the

retaining screw and centre cap / indice.

1. Push the spindle into the spindle housing. . Screw the half cartridge back onto the

spindle housing.

Temperature Setting / Adjustment

Temperature Setting / AdjustmentTemperature Setting / Adjustment

Temperature Setting / Adjustment

1. Turn on the water supplies and fully open the flow control, let the water run long enough to

ensure that the hot water supply is at its maximum temperature.

. Remove the indice and unscrew the retaining screw.

3. Turn the temperature knob to the maximum setting then turn the shower on fully with the flow

control, wait until the max temperature is reached.

4. Lift the temperature knob 3-5mm off the spline of the cartridge.

5. Turn the temperature knob anti-clockwise to increase temperature and clockwise to decrease

temperature.

6. Having reached your desired temperature, turn the shower off, reset the temperature knob,

Matching the indicator dots on the temperature knob up to the temperature ring.

7. Replace the retaining screw in the allocated slot and push the covering cap back into place.

Inlets reversed (hot supply to cold supply) check that the

connections are the correct way round. Hot on the left and cold

on the right when viewed from the front.

only hot or cold water from the mixer

outlet

Cartridge seals damaged, replace as necessary.leaking from controls

This is normal for a short period after shut off.water leaking from shower head

Check that the pressures do not exceed the specification for the

product.

Cartridge seals damaged, replace as necessary.

Air lock or partial blockage in the pipework.

Make sure the inlet temperature differentials are sufficient.

The inlet hot water temperature must be at least 10ºC above

the required blend temperature.

The maximum recommended hot supply is 60ºC.

Make sure that the maintained inlet pressures are nominally

balanced and sufficient.

Check the shower handset, hose and filters for any blockage.fluctuating or reduced flow

Installation conditions outside operating parameters. Refer to

specification section.

Winter conditions - If using combination boiler system and

shower output temperature is low, please contact Bristan for

guidance.

Check insert filters for any blockage.

No hot or cold water reaching mixer.outlet temperature too hot / cold

Rework pipework if necessary.

cause / rectificationsymptoms

fault diagnosis

fault diagnosisfault diagnosis

fault diagnosis

Bristan Spare Part Numbers

Bristan Spare Part NumbersBristan Spare Part Numbers

Bristan Spare Part Numbers

Thermostat & Piston – SK1500-3

Complete Cartridge – SK1850-

Seal Kit - SK1850-1

Notes

Use this page for any notes that you have regarding the servicing of your shower valve.

This booklet covers servicing of

SK1850-

Helpline

HelplineHelpline

Helpline

0844 701 6 73

0844 701 6 730844 701 6 73

0844 701 6 73

Bristan Group Limited

Birch Coppice Business Park, Dordon, Tamworth, Staffordshire B78 1SG

A Masco Company

Website: www.bristan.com

Telephone: 0844 7016 74 Facsimile: 0844 701 6 75

Email: enquire@bristan.com

FI (SI SK1850- ) – REV. D1

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