Smith Cast Iron Boilers GS110W User Manual
Page 17
GS110 DIRECT VENT BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Page 17
Piping For Use With Cooling Units
The boiler, when used in connection with a refrigera-tion
system must be installed so the chilled medium is piped
in parallel with the boiler. Appropriate valves must be
used to prevent the chilled water from entering the
boiler.
When a boiler is connected to a heating coil that may be
exposed to refrigerated air from an air handling device, the
piping system must be equipped with flow-control valves or
some other automatic means of preventing gravity
circulation of the boiler water during the cooling cycle.
Circulators
The TACO 007 circulator supplied with the boiler is sized
for use in a closed heating system with a 30 psi
maximum operating pressure. If the 007 circulator does
not have the required capacity for the system in which
it is to be installed, an extra zone circulator or a higher
capacity circulator will be needed. Figure 17 depicts the
performance curve for the TACO 007 circulator.
Figure 17 - TACO 007 Performance Curve
10
8
6
4
2
0
0
5
10
15
20
25
FLOW - GPM
HEAD - FEET OF WATER
TACO 007 CIRCULATOR
PERFORMANCE CURVE