GB100W NATURAL OR PROPANE BOILER
INSTALLATION AND OPERATING INSTRUCTIONS
Page 9
The boiler should be placed in the location selected for it. Refer to the BOILER LOCATION section in this manual. Ensure that the boiler is level from front to back and from side to side. Use metal shims to level the boiler. NEVER use wood, plastic or other combustible materials as shims.
All heating system piping must be installed in accordance with the ANSI/ASME Boiler and Pressure Vessel Code, Section IV, and ANSI/ ASME
If the boiler is installed above any radiation elements it must be fitted with a low water cutoff device, L.W.C.O., installed above the normal boiler water level.
Circulators
A TACO 007 circulator has been supplied as standard equipment with the boiler. The 007 is sized for use in a closed heating system with a 30 psi, 207 kPa, maximum operating pressure. If the 007 circulator furnished with this boiler does not have the required capacity for the system in which it is to be installed, an extra zone circulator must be provided. A circulator with a higher capacity may also be used. Figure 5 depicts the performance curve for the TACO 007 circulator.
Piping For Use With Cooling Units
The boiler, when used in connection with a refrigeration 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. See Figure 6 for the proper piping layout.
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.
Figure 5: TACO 007 Performance Curve
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FLOW - GPM
25