A.O. Smith GWV - 120 Installation And Service Manual page 38

3
3.11.3
38
Installation
G ENESIS
IMD-0511 R1
The display will now show INTERNAL CHECK for about 10 seconds and
go to the main menu.
INTERNAL CHECK
MENU
»OFF
^ ON
È WEEK PROGRAM
7. Activate the "ON mode" by going through the following steps:
- Press the blue arrow once ( ) to position the cursor in front of ON and
press . The display shown here will appear.
»START OPERATION
^ CHANGE SETPOINT
È Tset=65C
- Confirm the START OPERATION by pressing
The appliance is now in the "ON mode" and will ignite.
8. When the display shows the text RUNNING 2, you must wait about 1
minute before reading the dynamic pressures (the fan needs this time to run
up to full rotational speed).
9. Use the pressure gauge to read the supply pressure at the test nipple
(1) (3.4.3 "Gas data").
Note
Consult the mains gas supply company if the supply pressure is not correct.
10. Use the pressure gauge to read the burner pressure at nipple
(2) (3.4.3 "Gas data").
If the burner pressure is not correct, you can adjust the pressure according to
the procedure (3.11.3 "Adjusting the
Adjusting the pressure
1. Remove the cap (4) from the burner pressure regulator (3).
2. Correct the burner pressure by turning the adjusting screw (5), depending
on the correction required:
- Adjustment screw anticlockwise: burner pressure decreases.
- Adjustment screw clockwise: burner pressure increases.
pressure").
Instruction manual GWV
is
.