Whirlpool BFG2H4040T3NOV 7K, 4220 Checking the Draft, Water Temperature Regulation, Burner Flames

Correct flame

soft blue

Tips may have a yellow tint

Yellow inner cones are satisfactory

Figure 18

Flame Characteristics

Match

Drafthood Relief Opening

Figure 17

L.P.G. (Bottled Propane) Models

Liquefi ed petroleum gas is over 50% heavier than air and in the occurrence of a leak in the system, the gas will settle at fl oor level. Basements, crawl spaces, skirted areas under mobile homes (even when ventilated), closets and areas below ground level will serve as pockets for the accumulation of gas. Before lighting an L.P. gas water heater, smell all around the appliance at fl oor level. If you smell gas, follow the instructions as given in the warning on the front page.

When your L.P. tank runs out of fuel, turn off the gas at all gas appliances including pilot lights. After the tank is refi lled, all appliances must be re-lit according to their manufacturer’s instructions.

Checking the Draft

WARNING

Burn Hazard

Do not touch vent.

Doing so can result in burns.

After successfully lighting the water heater, allow the unit to operate for 15 minutes and check the drafthood relief opening for proper draft. Make sure all other appliances in the area are operating and

all doors are closed when

performing the draft test. Pass

a match flame around the relief opening of the drafthood. A steady flame drawn into the opening indicates proper draft.

If the flame flutters or is blown out, combustion products

are escaping from the relief opening. If this occurs, do not operate the water heater until proper adjustments or repairs are made to the vent pipe system and/or air supply

requirements.

Burner Flames

Water Temperature Regulation

WARNING

Water temperature over 125°F can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded.

Feel water before bathing or showering. Temperature limiting valves are available.

The thermostat is adjusted to its lowest temperature when it is shipped from the factory. Water temperature can be regulated by moving the temperature dial to the preferred setting. The preferred starting point is 120°F. Align the index bar on the thermostat with the desired water temperature as shown in Figure 19. There is a hot water scald potential if the thermostat is set too high.

IMPORTANT: Adjusting the thermostat past the 120°F bar on the temperature dial will increase the risk of scald injury. Hot water can produce first degree burns within:

120°F (49°C) more than 5 minutes 130°F (54°C) at 20 seconds 140°F (60°C) at 3 seconds 150°F (66°C) at 1-1/2 seconds 160°F (71°C) at less than 1 second

Inspect the burner flames through the

viewport and compare them to the drawings

in Figure 18. A properly operating burner should

produce a soft blue flame. Blue tips with yellow inner cones are

satisfactory. The tips of the flame may have a slight yellow tint. The flame should not be all yellow or have a sharp blue-orange color. Contaminated air may cause an orange colored flame. Contact a qualified person if the flame is not

Figure 19

Robertshaw Gas Valve/Thermostat

Settings

Reset

Button

Gas

Control

Knob

Dial

BEFOUNITROLR

Stop

RE

AD W

ARNIN

E

A

S

G

Index

TR

UCT

T

LIG

IO

HTING

S

Bars

H

O

W

A

C

R

M

AU

TI

O

N

AC

130°F

Bar

V

A

NO

I T

130°F	120°F
Bar	Bar

W

A

R

UTIO

M

A

N

C

T

O

H

A

H

R

S

V

W

O TTE

SE

Y

A

H

T

T

R

E

E

A

U

C

RI

R INCRE

J

A

S

IN

K

LD

OF SCA

T

I

O

N

satisfactory.

Stacking

Stacking occurs when a series of short draws of hot water (3 gallons or less) are taken from the water heater tank. This causes increased cycling of the burner and can result in increased water temperatures at the hot water outlet. An anti-scald device is recommended in the hot water supply

line to reduce the risk of scald injury.

Emergency Shut Down

IMPORTANT: Should overheating occur or the gas supply fails to shut off, turn off the water heater’s manual gas control valve and call a qualified person.

NOTE: During low demand periods when hot water is not being used, a lower thermostat setting will reduce energy losses and may satisfy your normal hot water needs. If hot water use is expected to be more than normal, a higher thermostat setting may be required to meet the increased demand. When leaving your home for extended periods (vacations, etc.) turn the temperature dial to its lowest setting. This will maintain the water at low temperatures with minimum energy losses and prevent the tank from freezing during cold weather.

18