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AQUA PLUS indirect-fired water heaters — Product Manual
Recirculation
(continued)
Part number GL-E223-ADOC 0614
9
Copper pipe ½” 25 63 8 21 5 13 3 8
¾” 48 119 16 40 10 24 6 15
Steel pipe ½” 63 157 21 52 13 31 8 20
¾” 91 228 30 76 18 46 11 28
CPVC pipe ½” 64 159 21 53 13 62 8 20
¾” 95 238 32 79 19 48 12 30
NOTE: Select branch size and length for less than 31 seconds delay.
Recirculation components
Time lag to obtain hot water at fixture for branch lengths of 10 and 25 feet (ASPE
Domestic Water Heating Design Manual)
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