Bradford White SW-2-40R-L Installation And Operating Manual page 25

Electrical Connections continued-
Table 8 details the approximate 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.
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


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
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



Figure 6 - Scald Warning
2. For the most energy efficient operation, adjust the aquastat for
the minimum water temperature necessary to meet domestic hot
water needs (refer to Figure 7). Use a small flat screwdriver to
rotate the temperature dial through the hole directly below the
temperature indication window. The temperature setting is
aligned with the notch in this window. IT IS NOT NECESSARY
TO REMOVE THE COVER TO ADJUST THE TEMPERATURE
SETTING. THE AQUASTAT COVER SHOULD NEVER BE
REMOVED WITHOUT ELECTRICITY BEING FIRST
DISCONNECTED.
Figure 7 - Aquastat Control
APPROXIMATE
TIME/TEMPERATURE
RELATIONSHIPS IN SCALDS
120°F More than 5 minutes
125°F 1 ½ 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 ½ seconds
155°F About 1 second
Table 8: Scald Relationships
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