Horne Engineering Ltd

pass hot water

Slide-Valve seal is

Replace Slide-Valve Seal (4)

6.2.5 & 6.2.6

when cold supply

damaged

is isolated.

Replace Thermostat Element/

Element has failed

6.2

Slidevalve Assembly (5)

If water flowing is more

than 4°C above required

mixed water temperature

then valve may not have

Recommission the valve,

been commissioned with an

closely following the guidance

3

adequate hot water supply

in Section 3.

temperature.

NB If this is the case the

valve may not offer scald

protection

If water flowing is not more

than 4°C above required

mixed water temperature

Repeat test with hot water

then the boiler is not

heating the water supply

temperature at least 5°C above

sufficiently to cause thermal

required mixed water temp.

shut-off. (N.B. this is

possible with combi

boilers).

Issue 3 Dec 05

Page 10 of 10