i. The interlock shall prevent the main burner
from igniting if the damper fails to open during
burner startup.
ii. The interlock shall shut down the burner if the
damper closes during burner operation.
10.
Combustion Air Ducts
:
a. Ducts shall be constructed of galvanized steel or
an equivalent corrosion- resistant material.
b. Ducts shall terminate in an unobstructed space,
allowing free movement of combustion air to the
appliances.
c. Ducts shall serve a single space.
d. Ducts shall not serve both upper and lower
combustion air openings where both such
openings are used. The separation between ducts
serving upper and lower combustion air openings
shall be maintained to the source of combustion
air.
e. Ducts shall not be screened where terminating in
an attic space.
f. Horizontal upper combustion air ducts shall
not slope downward toward the source of the
combustion air.
g. Combustion air intake openings located on the
exterior of buildings shall have the lowest side
of the combustion air intake opening at least 12
inches (305 mm) above grade.
11. Refer to Section 3 of this manual, Venting & Air Inlet
Piping, for specific instructions for piping the exhaust
and combustion air.
E. PLANNING THE LAYOUT
1. Prepare sketches and notes showing the layout of
the boiler installation to minimize the possibility of
interferences with new or existing equipment, piping,
venting and wiring.
2. The following sections of this manual should be
reviewed for consideration of limitations with
respect to:
a. Venting and Air Inlet Piping: Section 3
b. Water Piping: Section 4
c. Fuel Piping: Section 5
d. Condensate Removal: Section 6
e. Electrical Connections: Section 7
f. Boiler Control: Section 8
g. Boiler Dimensions and Ratings: Section 12
6
PREINSTALLATION
Do not install this boiler where gasoline or other
flammable liquids or vapors are stored or are in use.
WARNING
Do not install this boiler in the attic.
WARNING
This boiler is certified as an indoor appliance. Do not
install this boiler outdoors or locate where it will be
exposed to freezing temperatures.
WARNING
Содержание PureFire PFC-625
Страница 1: ...PureFire Boilers PFC 625 PFC 750 Gas Installation Operation Maintenance Manual ...
Страница 24: ...22 WATER PIPING CONTROLS Figure 4 4 Recommended Piping One Boiler with Multiple CH Zones One DHW Tank ...
Страница 25: ...23 WATER PIPING CONTROLS Figure 4 5 Recommended Piping Multiple Boilers with Multiple CH Zones One DHW Tank ...
Страница 36: ...34 ELECTRICAL CONNECTIONS INTERNAL WIRING Figure 7 4 Internal Wiring Schematic for PFC 625 PFC 750 boilers ...
Страница 58: ...56 J LIGHTING OPERATING INSTRUCTIONS Figure 9 1 Lighting Operating Instructions START UP PROCEDURE ...
Страница 76: ...74 REPAIR PARTS 2 9 8 7 2 4 2 1 3 6 6 5 2 10 5 Figure 13 3 Supply Return Piping ...
Страница 78: ...76 REPAIR PARTS 18 16 17 6 14 15 9 4 3 1 8 13 18 7 19 2 10 11 12 5 Figure 13 4 Jacket Assembly ...
Страница 82: ...80 REPAIR PARTS Figure 13 6 Condensate System 1 2 4 7 5 15 15 8 11 3 10 15 6 15 15 12 15 13 15 9 15 14 15 ...
Страница 87: ...85 SERVICE LOG SERVICE LOG Date Serviced By Description of Service Serial Number ...