Operating instructions

5
Dayton Operating Instructions and Parts Manual
Models 6BY71, 6BY73 and 6BY74
Specifications
Model 6BY71
• Rating: 15,000 - 25,000 Btu/Hr (15,826 - 26,376 Kj/Hr)
• Fuel: Propane/LP Gas Only
• Gas Supply Pressure to regulator:
Max. - Tank Pressure, Min. - 20 psig (137.9 kPa)
• Regulator Outlet Pressure:
High - 15 psi (103.4 kPa), Low - 5 psi (34.4 kPa)
• Ignition: Piezo Ignitor
• Minimum Ambient Temp. Rating: 0° F (-17.8° C)
• Fuel Consumption:
Pounds (kg)/Hr - Min 0.7 (0.32), Max 1.16 (0.53)
Model 6BY73
• Rating: 40,000 - 80,000 Btu/hr (42,202 - 84,404 Kj/Hr)
• Fuel: Propane/LP Gas Only
• Gas Supply Pressure to regulator:
Max. - Tank Pressure, Min. - 10 psig (68.9 kPa)
• Gas Supply Pressure regulator out: 25" W.C. (63.5 cm)
• Ignition: Piezo Ignitor
• Minimum Ambient Temp. Rating: 0° F (-17.8° C)
• Fuel Consumption: 1.9 - 3.7 lb/hr (0.86 – 1.68 kg/hr)
• Fuel Orifice Port No.: 1
• Fuel Orifice Port Size: 0.086" (2.18 mm)
Model 6BY74
• Rating: 75,000 - 200,000 Btu/hr (79,129 - 211,101 Kj/Hr)
• Fuel: Propane/LP Gas Only
• Gas Supply Pressure to regulator:
Max. - Tank Pressure, Min. - 15 psig (103 kPa)
• Gas Supply Pressure regulator out: 10 psig (68.9 kPa)
• Ignition: Piezo Ignitor
• Minimum Ambient Temp. Rating: 0° F (-17.8° C)
• Fuel Consumption: 3.5 - 9.3 lb/hr (1.6 - 4.2 kg/hr)
• Fuel Orifice Port No.: 6
• Fuel Orifice Port Size: 0.0320" (0.813 mm)
25/80,000 Btu/Hr Models: This
heater is designed to operate
with a minimum 20 lb. (9 kg)
tank. You may need two or
more tanks or one larger tank
in colder weather. Use a 100 lb.
(45 kg) tank for longer operation
or in very cold weather. Less gas
is vaporized at lower tempera-
tures. Your local propane gas
dealer will help you select the
proper supply system.
200,000 Btu/Hr Models: This heater
will operate on a minimum 40 lb
(18 kg) propane tank but only for
a very short time if control knob is
in the lowest setting during mildly
cool weather. At higher heat set-
tings or during colder weather
you may need two or more tanks
or one larger tank. Use a 100 lb.
(45 kg) tank for longer operation
or in very cold weather.
Less gas is vaporized at lower
temperatures. Your local pro-
pane gas dealer will help you
select the proper supply system.
The chart that follows shows
the minimum number of 100 lb
(45 kg) tanks needed to run the
heater. Connect tanks together
with a manifold.
Smaller tanks can be used
for limited run times but it is
recommended to use larger
tanks for optimum perfor-
mance.
Propane Supply
(Continued)
Average Temperature No. of 100lb
At Tank Location (45 kg) tanks
25,000 Btu/Hr (6BY71)
above 0° F (-17.8° C) 1
below 0° F (-17.8° C) 1
80,000 Btu/Hr (6BY73)
above 20° F (-6.7° C) 1
below 20° F (-6.7° C) 2
200,000 (6BY74)
above 20° F (-6.7° C) 2
below 20° F (-6.7° C) 3