TESTO 550s - Page 27

8 Using the product
27
5.1
Press the [▲] / [▼] key and in the
Return Air Wet Bulb Temp. field,
select Manual Input.
5.2
Press
[Menu/Enter]
to confirm.
-
The field is activated.
5.3
Press [▲] / [▼] to set the value.
5.4
Press [Menu/Enter] to confirm.
6
Confirm the entries in steps 4 and 5:
Press [▼] to select Okay and press [Menu/Enter] to confirm.
-
The Target Superheat
measurement menu is displayed.
7
Connect the refrigerant hoses.
7.1
Close the valve positioners.