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Fig. Set nominal load of the gas burners
8.7.3 Turn on the water heater
Refer to the procedure in the user part to Turn
on the water heater (see 4.1).
8.8 Decommisioning
To decommission the water heater:
1. Turn off the water heater (see 8.8.1)
2. Drain the water heater (see 8.8.2)
8.8.1 Turn off the water heater
Refer to the procedure in the user part to Turn
off the water heater (see 4.2).
8.8.2 Draining
Refer to the installation diagram (see 8.3) when
you drain the water heater:
1. Close the manual gas valve (10).
2. If applicable, close the service stop valve
(11) in the hot water pipe.
3. Close the stop valve (10).
4. Open the drain valve (9).
5. Aerate the entire installation of air until the
water heater is completely drained.
n
Note
Disconnect and tilt the water heater in the
direction of the drain valve when the water
heater needs to be drained completely.
9 Conversion of gas
type
c
Caution
Conversion of the water heater may only be
carried out by a qualified person.
Use a conversion kit to convert the water heater
when the water heater has to operate on a gas
0313126_BTL_UKUK_V1.1, 30-11-2018
category other than that for which the water
heater has been configured at the factory.
You can order the conversion kit you need from
the supplier of your water heater. The conversion
kit contains all the parts needed to do the
conversion and an instruction how to do the
conversion.
The following conversions are possible:
•
Conversion from natural gas to LPG.
•
Conversion from LPG to natural gas.
•
Conversion from natural gas to natural gas.
c
Caution
After the conversion, make sure that the water
heater is gas-tight. Make sure that the supply
pressure and the burner pressure have the
correct value.
10 Maintenance
The water heater needs maintenance at least
once a year. The maintenance interval is
determined by the water quality, the average
burning time each day and the set water
temperature.
To determine the correct interval, A.O. Smith
recommends to do a system check on both the
water and the gas side, three months after
installation.
n
Note
Do maintenance to maintain an effective and
efficient transfer of heat to the water. This
significantly increases the service life of the
water heater.
Note
When needed, spare parts can be ordered. To
be sure that you receive the correct spare
parts, look at the data plate for the full serial
number, the water heater model, and the used
gas category. Use this information when you
order the spare parts.
Do the following maintenance activities:
•
Performance check (see 10.1)
•
Water-side maintenance (see 10.2)
•
Gas-side maintenance (see 10.3)
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