Daikin Maverick I MPSA07D, Руководство по установке и обслуживанию

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IM 971-3 • MAVERICK I 12 www.DaikinApplied.com
Mechanical Installation
Table 7: Meter Time in Minutes and Seconds for Normal Input Rating of Furnaces Using Natural or LP Gas
Input
Btu/ hr
Meter Size
Cu .Ft .
Heating Value of Gas Btu Per Cu .Ft . LP (cu . Ft .)
900 1000 1050 1100 2500
Minutes Seconds Minutes Seconds Minutes Seconds Minutes Seconds Minutes Seconds
150,000
One 0 22 0 24 0 25 0 26 1 0
Ten 3 36 4 0 1 16 4 24 10 0
205,000
One 0 16 0 18 0 18 0 19 0 44
Ten 2 38 2 56 0 55 3 13 7 19
225,000
One 0 14 0 16 0 17 0 18 0 40
Ten 2 24 2 40 0 50 2 56 6 40
Table 8: LP Gas Pipe Capacity (Cubic feet per hour)
Nominal
Iron Pipe
Size, Inches
Length of Pipe, Feet
10 20 30 40 50 60 70 80 90 100
½ 275 189 152 129 114 103 96 89 83 78
¾ 567 393 315 267 237 217 196 182 173 162
1 1,071 732 590 504 448 409 378 346 322 307
1¼ 2,205 1,496 1,212 1039 913 834 771 724 677 630
1½ 3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976
2 6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811
Start the furnace and measure the time required to burn one
cubic foot of gas. Prior to checking the furnace input, make
certain that all other gas units are shut OFF, with the exception
of pilot burners. Time the meter with only the furnace in
operation.
IMPORTANT NOTE FOR ALTITUDES ABOVE 2,000 FEET
(610 METERS): The main burner orifices in your furnace and
in these kits are sized for the nameplate input and intended
for installations at elevations up to 2,000 feet in the USA or
Canada, or for elevations of 2,000 - 4,500 feet (610 1,373
meters) in Canada if the unit has been derated at the factory.
For elevations above 2,000 feet (610 meters)
IN THE USA
ONLY (see ANSIZ223.1), the burner orifices must be sized to
reduce the input 4% for each 1,000 feet (305 meters) above
sea level.
NOTICE: Derating of the heating input for high altitude in the
field is unlawful in Canada (refer to CAN/CGA 2.17). Units
installed in altitudes greater than 2,000 feet (610 meters)
must be shipped from the factory or from a factory authorized
conversion station with the heating input derated by 10% so
as to operate properly in altitudes from 2,000 - 4,500 feet (610
1,373 meters).
Condensate Drain
The condensate drain connection of the evaporator is threaded
¾" nominal iron pipe. IMPORTANT: Install a condensate trap
to ensure proper condensate drainage. See Figure 11 .
Figure 11: Condensate Drain