Install Instructions

IM-PR 566442 1114 (Design Manual)
106
5.6.2 Glycol pressure drop
Determining the pressure drop in a snow melt system with a glycol solution is achieved in the same
manner as for a 100% water system, except that different pressure drop charts must be used based on
the % glycol solution. Pressure drop tables for piping using a glycol solution are provided below.
Circulators must be sized for the pressure drop that they will experience at their design flow rate. The first
step in calculating the pressure drop associated with a circulator is identifying the network of piping and
accessories (valves, fittings, mixing devices, expansion tanks, air separators, etc.) that corresponds with
each circulator.
Figure 5-2 Snow melt piping configuration showing primary, secondary and panel piping associated with
each circulator.
Flat Plate Exchanger
(BV-3)
MANI FOLD 1 2" Copper 9 Circuits - 300 ft 222,222 BTU/h
MANI FOLD 3 2" Copper 9 Circuits - 3 00 ft 222,222 BTU/h
MANI FOLD 4 2" Copper 9 Circuits - 3 00 ft 222,222 BTU/h
MANI FOLD 5 2" Copper 9 Circuits - 3 00 ft 222,222 BTU/h
Area 1
10,000 sq ft, \P2,000,000 BTUh\P45 Circuits\P3/4" ViegaPEX Barrier\P5 Manifolds
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(BV-6)
(BV-1)
(BV-2)
(BV-5)
MANI FOLD 2 2" Copper 9 Circuits - 3 00 ft 222,222 BTU/h
4-WAY MIXING VALVE WITH ACTUATOR