Reliant FVIR GAS WATER HEATER Technical Information PDF herunterladen (Seite 58)

RESIDENTIAL GAS AND ELECTRIC WATER HEATER

TROUBLESHOOTING and SERVICE HANDBOOK

RELIANCE Water Heater Company Technical Training Department

WHY WATER HEATER TANKS LEAK - Continued

WATER CONDITIONS

WHAT WHY PREVENTION

“Hard” Water

(Gas Water

Heaters)

“Hard” water contains minerals.

As water is heated the minerals

separate from the water and

attach to hot surfaces within the

tank. In gas water heaters, these

minerals “insulate” the heat

transfer surfaces conducting heat

from the burner through to the

water. These surfaces become

hotter than if they were clean.

Hotter surfaces mean more

expansion and contraction of the

metal as the burner cycles on and

off. The metal or weld joints

crack.

“Flush” the sand from the tank every 6

months.

Delime the tank interior yearly.

Install a water softener in hard water

areas. These should be adjusted

according to manufacturer’s

recommendations, typically for 5 grains

hardness.

“Hard” Water

(Electric Water

Heaters)

See above explanation.

Lime (calcium) forms on the

electric elements.

Elements become excessively hot

and may split.

Split elements often leak to the

outside of the heater.

Inspect and clean elements as

necessary.

Add a water softener.

Install elements resistant to failure due to

Lime (mineral) build up.

Water

Temperature

Water stored at 160 F (72 C)

may be twice as corrosive as

water stored at 140 F (60 C)

Begin with a water heater setting of

120 F (49 C) and increase only as

necessary.

Usage Each time the burner or elements

cycle on and off, a small amount

of metal expansion and

contraction take place. As

bending a piece of wire back and

forth will break the wire, this

expansion and contraction will

eventually crack tank joints or

welds.

Purchasing a proper sized tank will

minimize burner or element operation

when only small quantities of hot water

are used.

For more detailed explanation on this information as well as additional service information, see

the RELIANCE Web site www.reliancewaterheaters.com

under “Technical Bulletins”.

0801

form TC-063

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 74 75

Kommentare zu diesen Handbüchern

Keine Kommentare

Reliant FVIR GAS WATER HEATER Technical Information Seite 58

Kommentare zu diesen Handbüchern