Armstrong 3401 Instrukcja instalacji i konserwacji - Strona 13

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Step 4

Re-fit the Knob, tighten the screw and replace the

concealing cap.

Make sure the indicator is in either the 9 o' clock

position (adjustable temperature configuration) or 6

o' clock position (locked temperature configuration).

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.

*Maximum temperature stop or single temperature locking feature is established during the on-site commissioning

protocol .

Exercising the Thermostat

Thermostatic mixing valves with thermostats are inclined

to lose their responsiveness if not used. Valves which

have been in storage, installed but not commissioned,

or simply not used for some time should be exercised

before setting the maximum temperature or carrying out

any tests. A simple way to provide this exercise is:

Ensure that the hot and cold water are available at

the valve inlets, and the outlet is open.

Move the temperature control rapidly from cold to hot

and hot back to cold several times, pausing at each

extreme.

3 mm

Counterclockwise

Hotter

(to Maximium

Temperature Stop*)

Single Temperature

Locked*

(No Movement)

1. Adjustable Temperature

2. Constant Temperature

Clockwise

Cooler