8
Figure 3: Clearance to Combustible Materials
c. Caulking or sealants applied in joints around
window and door frames, between sole plates
and floors, between wall-ceiling joints, between
wall panels, at plumbing and electrical
penetrations, and at other openings.
5. For boiler located in an
unconfined space in a
building of
other than unusually tight construction
,
adequate combustion and ventilation air is normally
provided by fresh air infiltration through cracks
around windows and doors.
6. For boiler located within
unconfined space in
building of unusually tight construction
or within
confined space
, provide outdoor air through two
permanent openings which communicate directly or
by duct with the outdoors or spaces (crawl or attic)
freely communicating with the outdoors. Locate one
opening within 12 inches of top of space. Locate
remaining opening within 12 inches of bottom of
space. Minimum dimension of air opening is 3
inches. Size each opening per following:
a. Direct communication with outdoors. Minimum
free area of 1 square inch per 4,000 Btu per hour
input of all equipment in space.
b. Vertical ducts. Minimum free area of 1 square
inch per 4,000 Btu per hour input of all
equipment in space. Duct cross-sectional area
shall be same as opening free area.
c. Horizontal ducts. Minimum free area of 1 square
inch per 2,000 Btu per hour input of all
equipment in space. Duct cross-sectional area
shall be same as opening free area.
Alternate method for boiler located within confined
space
. Use indoor air if two permanent openings
communicate directly with additional space(s) of
sufficient volume such that combined volume of all
spaces meet criteria for unconfined space. Size each
opening for minimum free area of 1 square inch per
1,000 Btu per hour input of all equipment in spaces,
but not less than 100 square inches.
7. Ventilation Duct Louvers and Grilles. Equip outside
openings with louvers to prevent entrance of rain
and snow, and screens to prevent entrance of insects
and rodents. Louvers and grilles must be fixed in
open position or interlocked with equipment to open
automatically before burner operation. Screens must
not be smaller than ¼ inch mesh.
Consider the blocking effect of louvers, grilles and
screens when calculating the opening size to provide
the required free area. If free area of louver or grille
is not known, assume wood louvers have 20-25
percent free area and metal louvers and grilles have
60-75 percent free area.
H.
Do not install boiler where gasoline or other flammable
vapors or liquids, or sources of hydrocarbons (i.e.
bleaches, cleaners, chemicals, sprays, paint removers,
fabric softeners, etc.) are used or stored.
Summary of Contents for Independence
Page 4: ... Figure 1 Dimensional Drawing ...
Page 19: ...19 Figure 25 Recommended Water Piping for Circulator Zoned Heating System ...
Page 20: ...20 Figure 25A Recommended Water Piping for Zone Valve Zoned Heating System ...
Page 29: ...29 Figure 34 Vent Damper Schematic Wiring Diagram Figure 33 Vent Damper Harness to Limit ...
Page 30: ...30 Figure 35 Wiring Diagrams Steam Continuous Ignition Standing Pilot Probe Low Water Cutoff ...
Page 32: ...32 Figure 36 Wiring Diagrams Steam Intermittent Ignition EI Probe Low Water Cutoff ...
Page 34: ...34 Figure 37 Wiring Diagrams Steam Intermittent Ignition HSP Probe Low Water Cutoff ...
Page 36: ...36 Figure 38 Wiring Diagrams Steam Continuous Ignition Standing Pilot Float Low Water Cutoff ...
Page 38: ...38 Figure 39 Wiring Diagrams Steam Intermittent Ignition EI Float Low Water Cutoff ...
Page 40: ...40 Figure 40 Wiring Diagrams Steam Intermittent Ignition HSP Float Low Water Cutoff ...
Page 44: ...44 Figure 42 Wiring Diagrams Water Intermittent Ignition EI Intermittent Circulation ...
Page 46: ...46 Figure 43 Wiring Diagrams Water Intermittent Ignition HSP Intermittent Circulation ...
Page 48: ...48 Figure 44 Wiring Diagrams Water Continuous Ignition Standing Pilot Gravity Circulation ...
Page 50: ...50 Figure 45 Wiring Diagrams Water Intermittent Ignition EI Gravity Circulation ...
Page 52: ...52 Figure 46 Wiring Diagrams Water Intermittent Ignition HSP Gravity Circulation ...
Page 54: ...54 Figure 47 Wiring Diagrams Water Continuous Ignition Standing Pilot Tankless Heater ...
Page 56: ...56 Figure 48 Wiring Diagrams Water Intermittent Ignition EI Tankless Heater ...
Page 58: ...58 Figure 49 Wiring Diagrams Water Intermittent Ignition HSP Tankless Heater ...
Page 61: ...61 Figure 53 Lighting Instructions Continuous Ignition System VR8200 and VR8300 Gas Valves ...
Page 62: ...62 Figure 54 Lighting Instructions Continuous Ignition System 7000 ERHC Gas Valve ...
Page 65: ...65 Figure 57 Operating Instructions Intermittent Ignition System HSP SV9501 and SV9601 ...
Page 76: ...76 ...
Page 77: ...77 Honeywell Hot Surface to Pilot Trouble Shooting Guide ...
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