A.O. Smith SGS - 100, Инструкция по установке, эксплуатации и обслуживанию

Страница: 48 / 121

Instruction manual SGS 45
is
3.13 Check the supply
pressure, gas
control valve
pressure, CO
2
value
and switching
pressure
Note
Before starting to use the appliance and/or checking the supply pressure
and/or the CO
2
value and/or the switching pressure, you should first
fill (5 "Filling") the appliance.
Caution
When starting up for the first time or after conversion, you must always
check the supply pressure, the gas control valve pressure, the CO
2
value and
the switching pressure.
Note
A CO
2
meter and a pressure gauge must be available for checking the
supply pressure, gas control valve pressure, CO
2
value and switching pressure.
3.13.1 Procedure for checking the supply pressure
To check the supply pressure, proceed as follows:
1. Isolate (10.3 "Isolating the water heater from the mains") the appliance from
the power supply.
2. Carefully remove the covers from the appliance.
3. The electrical section is now visible.
SGS 28 to 60
4. There is a test nipple before the gas control valve (for natural gas
appliances) or before the pressure-reducing valve (for LPG appliances) so
that the supply pressure can be measured.
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.
IMD-1095a R0
IMD-1096a R0