Reliant FVIR GAS WATER HEATER Technical Information PDF herunterladen (Seite 12)

Thermostat Operation: Standard residential water heaters use mechanical thermostats. With a mechanical

thermostat, a dial setting of 120° F may shut the burner down at a tank temperature between 110° and 130° F.

The heater will consistently shut off at this same temperature. For this same reason, water temperature may drop

15° F - 25° F, around the temperature probe, before the main burner is activated. Keep in mind that hot water in

the upper part of the tank will probably be very near the “shut off” temperature of the control while incoming cold

water drops the water temperature around the thermostat probe. Also short, repeating heating cycles caused by

small hot water uses can cause temperatures at the point of use to exceed the thermostat setting by up to 30° F.

Water Temperature Time to Produce 2nd & 3rd

Degree Burns on Adult Skin

160°F (71°C)

About 1/2 second

150°F (66°C) About 1-1/2 seconds

140°F (60°C) Less than 5 seconds

130°F (54°C) About 30 seconds

120°F (49°C) More than 5 minutes

80°F (27°C) - - - - - - - - - - - - - - - -

Gas Control Knob

On|Pilot|Off

Gas Control Knob

Off|Pilot|On

Robertshaw®

Gas Control Valve/

Thermostat

White-Rodgers®

Gas Control Valve/

Thermostat

120°F Mark

Water

Temperature

Dial

130°F

140°F

150°F

130°F

140°F

150°F

Reset Button

Note: Temperature marks noted above are approximate and may vary due to various factors.

BASIC INSTALLATION & OPERATION

Figure 6

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Reliant FVIR GAS WATER HEATER Technical Information Seite 12