background image

261660-YTG-C-0707

14

Unitary Products Group

CFM, STATIC PRESSURE, AND POWER - ALTI-
TUDE AND TEMPERATURE CORRECTIONS

The information below should be used to assist in application
of product when being applied at altitudes at or exceeding
1000 feet above sea level.

The air flow rates listed in the standard blower performance
tables are based on standard air at sea level.  As the altitude
or temperature increases, the density of air decreases. In

order to use the indoor blower tables for high altitude applica-
tions, certain corrections are necessary.

A centrifugal fan is a "constant volume" device.  This means
that, if the rpm remains constant, the CFM delivered is the
same regardless of the density of the air.  However, since the
air at high altitude is less dense, less static pressure will be
generated and less power will be required than a similar
application at sea level.  Air density correction factors are
shown in Table 8 and Figure 2.

The examples below will assist in determining the airflow per-
formance of the product at altitude.

Example 1

:  What are the corrected CFM, static pressure,

and BHP at an elevation of 5,000 ft. if the blower performance
data is 6,000 CFM, 1.5 IWC and 4.0 BHP?

Solution:  At an elevation of 5,000 ft the indoor blower will still
deliver 6,000 CFM if the rpm is unchanged.   However, Table
8 must be used to determine the static pressure and BHP.
Since no temperature data is given, we will assume an air
temperature of 70°F.  Table 8 shows the correction factor to
be 0.832.

Corrected static pressure = 1.5 x 0.832 = 1.248 IWC

Corrected BHP = 4.0 x 0.832 = 3.328

Example 2

: A system, located at 5,000 feet of elevation, is to

deliver 6,000 CFM at a static pressure of 1.5".  Use the unit

blower tables to select the blower speed and the BHP
requirement.

Solution

:  As in the example above, no temperature informa-

tion is given so 70°F is assumed.

The 1.5" static pressure given is at an elevation of 5,000 ft.
The first step is to convert this static pressure to equivalent
sea level conditions. 

Sea level static pressure = 1.5 / .832 = 1.80"

Enter the blower table at 6000 sCFM and static pressure of
1.8".  The rpm listed will be the same rpm needed at 5,000 ft.  

Suppose that the corresponding BHP listed in the table is 3.2.
This value must be corrected for elevation.

BHP at 5,000 ft = 3.2 x .832 = 2.66

TABLE 8: ALTITUDE CORRECTION FACTORS

AIR TEMP 

ALTITUDE (FEET)

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

40

1.060

1.022

0.986

0.950

0.916

0.882

0.849

0.818

0.788

0.758

0.729

50

1.039

1.002

0.966

0.931

0.898

0.864

0.832

0.802

0.772

0.743

0.715

60

1.019

0.982

0.948

0.913

0.880

0.848

0.816

0.787

0.757

0.729

0.701

70

1.000

0.964

0.930

0.896

0.864

0.832

0.801

0.772

0.743

0.715

0.688

80

0.982

0.947

0.913

0.880

0.848

0.817

0.787

0.758

0.730

0.702

0.676

90

0.964

0.929

0.897

0.864

0.833

0.802

0.772

0.744

0.716

0.689

0.663

100

0.946

0.912

0.880

0.848

0.817

0.787

0.758

0.730

0.703

0.676

0.651

Summary of Contents for SUNLINE MAGNUM DJ 180

Page 1: ...ow pressure loss of charge switches and freezestats Scroll compressors Two stage heating provided by dual independent heat exchangers with aluminized steel tubes redundant gas valves spark ignition wi...

Page 2: ...J300 13 Tbl Pg 8 ALTITUDE CORRECTION FACTORS 14 9 SUPPLY AIR BLOWER PERFORMANCE 15 TON COOLING ONLY 180 MBH BOTTOM DUCT CONNECTIONS 16 10 SUPPLY AIR BLOWER PERFORMANCE 17 5 TON COOLING ONLY 210 MBH BO...

Page 3: ...BF Phase Monitor Dirty Filter Switch Hinged Filter Door Tool Free Access Panels BG Coil Guard Dirty Filter Switch Hinged Filter Door Tool Free Access Panels BH Phase Monitor Coil Guard Dirty Filter S...

Page 4: ...ssor discharge bypass valve is available for low cooling load applications Simplicity Controls Simplicity control boards have standardized a number of features previously available only as options or...

Page 5: ...contains one sensor that monitors the outdoor air and determines when the air is cool enough and dry enough to provide free cooling The rainhood is painted to match the basic unit and must be field a...

Page 6: ...e other vendor s drives depend ing on their size In order to utilize the unit s mounting bracket the maximum recommended drive dimensions are as follows For 5 hp motor applications 13 H x 6 W x 7 D Fo...

Page 7: ...SS STEEL HEAT EXCHANGER For applica tions in corrosive environments this option provides a full stainless steel heat exchanger assembly STAINLESS STEEL DRAIN PAN An optional rust proof stainless steel...

Page 8: ...ressure on units with an economizer without power exhaust This accessory includes a rain hood a bird screen and a fully assembled damper With bottom duct connections the damper should be mounted over...

Page 9: ...ER Energy Efficiency Ratio at full load the cooling capacity in Btu s per hour Btuh divided by the power input in watts expressed in Btuh per watt Btuh watt IPLV3 3 IPLV Integrated Part Load Value COO...

Page 10: ...05 4 92 6 79 8 5250 72 189 7 14 51 123 4 108 2 93 1 77 9 62 7 178 3 15 95 118 9 103 7 88 6 73 4 58 2 67 172 3 14 24 154 6 139 5 124 3 109 1 94 0 78 8 63 6 161 8 15 70 150 1 134 9 119 8 104 6 89 4 74 3...

Page 11: ...5 94 4 77 3 6500 72 218 3 17 77 143 8 125 0 106 3 87 5 68 7 204 8 19 63 137 9 119 1 100 3 81 6 62 8 67 202 6 17 33 183 9 165 1 146 4 127 6 108 8 90 1 71 3 189 9 19 18 178 3 159 5 140 8 122 0 103 3 84...

Page 12: ...7000 72 250 6 20 15 162 5 142 2 122 0 101 8 81 6 236 4 21 79 157 8 137 5 117 3 97 1 76 9 67 231 3 19 69 206 2 185 9 165 7 145 5 125 3 105 1 84 9 218 5 21 50 199 2 179 0 158 8 138 6 118 4 98 1 77 9 62...

Page 13: ...7 8750 72 306 8 27 83 201 3 176 1 150 8 125 5 100 2 286 9 30 20 195 1 169 8 144 6 119 3 94 0 67 293 9 27 37 259 0 233 7 208 5 183 2 157 9 132 7 107 4 280 1 29 98 253 1 227 9 202 6 177 3 152 0 126 8 10...

Page 14: ...tatic pressure and BHP Since no temperature data is given we will assume an air temperature of 70 F Table 8 shows the correction factor to be 0 832 Corrected static pressure 1 5 x 0 832 1 248 IWC Corr...

Page 15: ...261660 YTG C 0707 Unitary Products Group 15 FIGURE 2 ALTITUDE TEMPERATURE CONVERSION FACTOR...

Page 16: ...5 2 4 7 0 7 5 7 5 1 208 VOLT AND HIGH STATIC DRIVE 965 6 0 1 2 2 9 2 6 1 0 3 6 3 2 0 8 4 0 3 6 0 5 4 7 4 2 0 4 5 0 4 4 980 5 5 1 3 3 0 2 7 1 1 3 7 3 3 0 9 4 1 3 7 0 6 4 8 4 3 0 5 5 1 4 6 1025 4 5 1 5...

Page 17: ...9 5 0 980 5 0 1 6 5 3 4 5 1 4 5 8 4 9 1 2 6 3 5 3 0 7 6 9 5 8 1010 4 0 1 8 5 8 4 9 1 7 6 3 5 3 1 5 6 9 5 8 1 0 7 5 6 3 1020 3 5 1 9 6 1 5 1 1 8 6 5 5 5 1 6 7 1 6 0 1 1 7 8 6 6 1035 3 0 2 0 6 2 5 2 1 9...

Page 18: ...6 3 5 3 0 7 6 9 5 8 0 2 7 3 6 1 1010 4 0 1 8 5 8 4 9 1 7 6 3 5 3 1 5 6 9 5 8 1 0 7 5 6 3 0 5 7 9 6 7 1020 3 5 1 9 6 1 5 1 1 8 6 5 5 5 1 6 7 1 6 0 1 1 7 8 6 6 0 6 8 3 7 0 1035 3 0 2 0 6 2 5 2 1 9 6 8...

Page 19: ...1 0 4 4 3 9 0 8 5 0 4 5 0 6 5 6 5 0 208 VOLT AND HIGH STATIC DRIVE 965 6 0 1 2 2 7 2 5 0 9 3 2 2 9 0 6 3 7 3 3 0 4 4 4 3 9 0 2 5 0 4 5 980 5 5 1 3 2 9 2 6 1 0 3 4 3 0 0 7 3 8 3 4 0 5 4 5 4 0 0 3 5 1 4...

Page 20: ...0 2 6 9 5 8 980 5 0 1 9 4 5 3 8 1 5 5 4 4 5 1 0 6 3 5 3 0 4 7 2 6 1 995 4 5 2 1 4 5 3 9 1 6 5 5 4 7 1 1 6 4 5 4 0 5 7 5 6 3 1025 3 5 2 3 4 9 4 1 1 8 5 8 4 9 1 3 6 7 5 7 0 7 8 0 6 7 1050 2 5 2 5 5 1 4...

Page 21: ...0 1 9 4 5 3 8 1 5 5 4 4 5 1 0 6 3 5 3 0 4 7 2 6 1 0 1 8 5 7 1 995 4 5 2 1 4 5 3 9 1 6 5 5 4 7 1 1 6 4 5 4 0 5 7 5 6 3 0 2 8 6 7 3 1025 3 5 2 3 4 9 4 1 1 8 5 8 4 9 1 3 6 7 5 7 0 7 8 0 6 7 1050 2 5 2 5...

Page 22: ...3 13 7 11 2 1215 4 0 2 7 8 6 7 0 2 1 10 4 8 5 1 4 12 3 10 1 0 6 14 3 11 7 1255 3 0 3 0 9 1 7 4 2 4 11 0 9 0 1 7 12 9 10 6 0 9 15 0 12 3 1290 2 0 3 2 9 5 7 8 2 7 11 5 9 4 2 0 13 5 11 1 1 2 15 6 12 8 1...

Page 23: ...CFM 15 TON 17 5 TON 20 TON 25 TON 4500 6000 7200 6000 7500 9000 6000 8000 9400 7500 10000 12500 WET INDOOR COIL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 ELECTRIC HEAT OPTIONS 18 KW 0 3 0 4 0 4...

Page 24: ...1 7 2 0 0 None 0 0 36 1 45 E18 18 0 1 21 7 36 1 45 E36 36 0 2 43 3 63 1 70 E54 54 0 2 65 0 74 0 90 E72 72 0 2 86 6 95 6 110 575 8 3 78 0 9 5 9 0 0 None 0 0 28 2 35 E18 18 0 1 17 3 29 0 35 E36 36 0 2...

Page 25: ...114 1 9 10 0 0 0 None 0 0 56 5 70 E18 18 0 1 21 7 56 5 70 E36 36 0 2 43 3 66 6 70 E54 54 0 2 65 0 77 5 90 E72 72 0 2 86 6 99 1 110 575 13 5 80 1 5 8 2 0 0 None 0 0 44 6 50 E18 18 0 1 17 3 44 6 50 E36...

Page 26: ...1 7 2 5 0 None 0 0 41 1 50 E18 18 0 1 21 7 42 3 50 E36 36 0 2 43 3 69 4 70 E54 54 0 2 65 0 80 2 90 E72 72 0 2 86 6 101 9 110 575 8 3 78 0 9 5 9 4 0 None 0 0 32 2 40 E18 18 0 1 17 3 34 0 40 E36 36 0 2...

Page 27: ...4 1 9 10 0 5 0 None 0 0 61 5 70 E18 18 0 1 21 7 61 5 70 E36 36 0 2 43 3 72 9 80 E54 54 0 2 65 0 83 7 90 E72 72 0 2 86 6 105 4 110 575 13 5 80 1 5 8 2 4 0 None 0 0 48 6 60 E18 18 0 1 17 3 48 6 60 E36 3...

Page 28: ...3 4 3 4 NOM CFM TOTAL Each 4 000 4 000 5 000 5 000 CONDENSER COIL ROWS DEEP 2 FINS PER INCH 20 FACE AREA Sq Ft 63 8 COMPRESSOR Qty Per Unit SCROLL 2 FILTERS QUANTITY PER UNIT 12 X 24 X 2 12 TOTAL FACE...

Page 29: ...control box 3Second stage heating is not required on units with a single stage electric heater 4Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers when the thermostat...

Page 30: ...00 6 3 8 7 1 8 35 5 7 8 136 1 4 GAS OR ELECTRIC HEAT ACCESS DOT PLUG For pressure drop reading BLOWER COMPARTMENT ACCESS Auxiliary C GAS SUPPLY ENTRY CONTROL BOX ACCESS VENT AIR OUTLET HOODS BLOWER MO...

Page 31: ...aust option The covering consists of a heavy black paper composition 3 Replace the side supply and return air compartment panels For side duct applications 1 Replace the side panels on the supply and...

Page 32: ...ANCES LOCATION CLEARANCE Front 36 Rear 24 Less Economizer 49 With Economizer Left Side Filter Access 24 Less Economizer 36 With Economizer 3 Right Side Cond Coil 36 Below Unit1 1 Units may be installe...

Page 33: ...261660 YTG C 0707 Unitary Products Group 33 FIGURE 7 UNIT CENTER OF GRAVITY FIGURE 8 TYPICAL UNIT APPLICATIONS ROOF JACK INSTALLATION ROOF CURB INSTALLATION SLAB ON GROUND INSTALLATION...

Page 34: ...9 481 300 Elec 2846 496 927 927 496 180 Gas 2660 302 316 453 590 565 434 210 Gas 2928 340 340 488 636 636 488 240 Gas 2960 344 344 493 643 643 493 300 Gas 3046 354 354 508 661 661 508 180 Elec 2460 28...

Page 35: ...ension of the ducts allows duct work penetration between roof joists that are spaced on 72 centers Note Ducts can be installed into the curb from the roof All electrical and gas line connections can b...

Page 36: ...INALS ON A LIMITED NUMBER OF THERMOSTATS 3 1 2 4 3 1 2 4 Second stage heating not required on single stage heating units Second stage cooling not required on single stage cooling units Jumper is requi...

Page 37: ...They shall have built in field convertible duct connections for down discharge supply return or horizontal discharge supply return and be available with factory installed options or field installed ac...

Page 38: ...able circuit breaker on the 24 volt transformer side b Unit shall incorporate a lockout circuit which pro vides reset capability at the space thermostat or base unit should any of the following standa...

Page 39: ...Simultaneous economizer com pressor operation is also possible Dampers shall fully close on power loss BAS READY ECONOMIZER Outdoor and return air dampers that are interlocked and positioned by a full...

Page 40: ...static pressure requirements WOOD SKID Allows unit to be handled with 90 forks ECONOMIZER MOTORIZED DAMPER RAIN HOOD DJN E C300 only Contains all hood panels and the hardware for assembling ANTI RECY...

Reviews: