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Figure 4-5_Boiler with Low Temperature Bypass Piping - Using a Thermostatic Mixing Valve Required for Systems
Operating at less than 140°F (60°C) Return Water Temperatures from the Heating Return Loop
COMMON MANIFOLD SIZE (Min.)
Models: 502, 752, 1002, & 1302
Number of Units GPM
Diameter
(in.)
1 75 2 1/2
COMMON MANIFOLD SIZE (Min.)
Models: 1501, 1701, & 2001
Number of Units GPM
Diameter
(in.)
1 90 2 1/2
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4 Water connections (continued)
Installation & Operation Manual