Armstrong 320 Installation And Maintenance Manual - Page 12

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Commissioning

Model 320 is designed for two types of configurations:

1. Locked Temperature (Temperature control is locked and cannot be adjusted)

2. Adjustable Temperature (Temperature can be adjusted through a desired range)

The following steps show the procedure for both type of installations:

Step 1

a. Remove the concealing cap.

b. Unscrew the knob using a 3mm Allen Key.

c. Remove the Knob and Hub.

Step 3

For Locked temperature

Obtain the desired maximum blend temperature then

re-fit the Hub in the 6 o'clock position so that the Center

Stop Slot fits over the Cartridge Stop, locking rotation

in either direction.

Factory pre-set outlet temperature = 110°F (43°C)

Step 2

3 mm

Open the hot and cold water supplies and open outlets

prior to adjusting the temperature.

Rotate the spindle to adjust the temperature to a desired

level.

Clockwise = Decrease temperature.

Anti-clockwise = Increase temperature.

Keep the spindle undisturbed.

For Adjustable temperature

Obtain the desired maximum blend temperature then

re-fit the Hub in the 9 o'clock position so the Hub Stop

hits the Cartridge Stop, preventing further anti-clockwise

rotation.

This sets the desired temperature as maximum

achievable temperature.