Water-Side Maintenance; Gas-Side Maintenance - A.O. Smith TWI - 35-130 Installation, User And Service Manual

10
10.3 Water-side
maintenance
10.4 Gas-side
maintenance
50
Maintenance
10.3.1 Descale
Scaling depends on the water condition and the water demand. Besides, more
scale deposit will be formed in the device at high temperatures. A temperature
setting of 60 ºC is recommended to ensure low scale deposit. Descale using the
appropriate agents. A descaling instruction is available for detailed information.
10.3.2 Clean the condensation drainage
Regularly clean the condensation drainage and the siphon to avoid stoppage.
10.4.1 Introduction
Proceed as follows for gas-side maintenance:
1. Clean the burner.
2. Clean the heat exchanger.
3. Cleaning the air inlet filter.
10.4.2 Clean the burner
1. Dismount the burner.
2. Remove the contamination present on the burner.
3. Remount the burner.
10.4.3 Clean the heat exchanger
1. Dismount the burner.
2. Clean the combustion chamber of the heat exchanger using a vacuum
cleaner and a soft brush.
3. Dismount the flue gas discharge.
4. Clean the end of the heat exchanger using tap water.
5. Remount the burner.
6. Remount the flue gas discharge.
Instruction manual TWI 35-130 G/TWI 45-190 G