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GB100W NATURAL OR PROPANE BOILER
INSTALLATION AND OPERATING INSTRUCTIONS
Figure 5: TACO 007 Performance Curve
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 CSD-1,
Standard for Controls and Safety Devices for
Automatically Fired Boilers. All applicable local codes
and ordinances must also be followed.
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.
10
8
6
4
2
0
0 5 10 15 20 25
FLOW - GPM
HEAD - FEET OF WATER
TACO 007 CIRCULATOR
PERFORMANCE CURVE