16
OPERATION
For models with a standard temperature knob fitted, adjustment of the blend temperature
from preset maximum to cold is achieved by clockwise rotation of the knob. Each
graduation on the cover shroud equals an approximate change of temperature of 2
o
C.
6.
Operate the outlet flow control and check:
(a) Flow rate is sufficient for the purpose
(b) Temperature(s) obtainable are acceptable.
It is advisable to establish a performance check at this time, which should be noted
for future reference as part of a Planned Maintenance Programme. The procedure
should be chosen to imitate both typical and difficult operating conditions, such as
any supply pressure fluctuations that may be likely. An ideal method is to locate
another outlet on the common cold water supply close to the mixing valve (operating
this outlet should cause a drop in supply pressure), and note the subsequent effect
on blend temperature (should be no more than 2
o
C change).
Locked
No Movement
(preset max)
Anticlockwise
Hotter to Pre-set
Max.
Clockwise
Cooler
