IM-P157-38
CMGT Issue 4
14
Steam/Water Mixing Stations (MkII valves - 2002 onwards) Safety and Operation
Commissioning the valve to set temperature:
9.
Remove the temperature adjustment knob retaining screw (
10
) and turn the temperature adjustment
knob (
12
) fully clockwise.
10.
Remove the adjustment knob and replace making sure that the retaining screw location is just
anticlockwise of one of the two location stops.
11.
Replace the retaining screw (
10
) and check that the temperature adjustment knob has at least 180
°
of
movement. If not, repeat Steps
9
and
10
positioning the retaining screw just anticlockwise of the other
location stop.
12.
Remove the bypass screw (
9
).
13.
Open the bypass valve fully anticlockwise.
14.
Turn the adjustment knob fully anticlockwise (coldest setting).
15.
Turn on the water and steam, then hold the gun open (see 'Start-up', Section 4.4.1). Check the hot water
temperature. Turn the bypass valve (
8
) clockwise until either the temperature is just below that required
or the flow has been reduced significantly.
Note:
It is normal for the flowrate to decrease through the use of the bypass valve. If the flow is less
than that required please refer to 'Fault finding', Section 7.
16.
Turn the adjustment knob clockwise to increase the hot water temperature. There may be a short delay
during temperature adjustment.
17.
If the desired temperature is not achieved, turn the adjustment knob fully anticlockwise and repeat
Steps
15
and
16
.
Note:
The maximum hot water temperature is 90
°C (194
°F).
18.
Close the gun.
19.
Replace the bypass screw (
9
).
