A.O. Smith SGS - 100, Installation, User And Service Manual

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Installation
46 Instruction manual SGS
3
is
SGS 80 to 120
5. The gas control valve has a test nipple that can be used for measuring the
supply pressure.
This test nipple has a sealing screw. Loosen the sealing screw by a few
turns. Do not completely loosen it as it can be difficult to retighten.
6. Open the gas supply and vent the gas supply line via the test nipple.
7. Connect a pressure gauge to the test nipple as soon as gas starts to flow
from it.
8. Switch on the power to the appliance using the isolator on the appliance.
9. Switch the controller
ON by setting the 0/I switch to position I .
The display will now show
INTERNAL CHECK
for about 10 seconds, and
will then go to the main menu.
10. Select
SERVICE OPERATION
,
FULL LOAD
from the service menu.
11. Confirm with .
The display shown here will appear.
The appliance is now in "Full load mode" and will ignite.
12. You must wait about 1 minute after the display shows the text
RUNNING
before reading the dynamic pressures (the fan needs this time to get up to
full speed, so that you can get a reliable reading).
INTERNAL CHECK
SERVICE MENU
SERVICE INTERVAL
»SERVICE OPERATION
È ANTI LEGIONELLA
SERVICE OPERATION
»FULL LOAD
PARTIAL LOAD
IMD-1097a R0