Raypak 503-2003 manual Time/Temperature Relationships in Scalds, Water Temp

Models: 503-2003

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Time/Temperature Relationships in Scalds

SECTION B: General Safety

Time/Temperature Relationships in Scalds

The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.

Water Temp.

Time to Produce Serious Burn

 

 

120°F

More than 5 minutes

 

 

125°F

1-1/2 to 2 minutes

130°F

About 30 seconds

 

 

135°F

About 10 seconds

 

 

140°F

Less than 5 seconds

145°F

Less than 3 seconds

 

 

150°F

About 1-1/2 seconds

 

 

155°F

About 1 second

Table courtesy of The Shriners Burn Institute

Table B: Time to Produce Serious Burn

The temperature of the water in the heater can be regu- lated by using the Raypak Modulating Temperature Control. To comply with safety regulations, the control is set at 120°F when shipped from the factory (Mode 3 default setting for Tank Target).

To adjust the water temperature, follow the instruction for the operation of the control starting on page 28 of this manual. The control is shown below for identifica- tion purposes only. (See Fig. 4.)

Fig. 4: Modulating Temperature Control

CAUTION: Hotter water increases the risk of scald- ing! There is a hot water scald potential if the thermostat is set too high.

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Raypak 503-2003 manual Time/Temperature Relationships in Scalds, Water Temp, Time to Produce Serious Burn