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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 DJ 180

Page 1: ...low 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 with induced draft logic Permanently lubricated motors Bottom or side air discharge configuration capability field convertible Belt Drive Blower Motor with high static drive option Constant supply air ...

Page 2: ...DJ300 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 BOTTOM DUCT CONNECTIONS 17 11 SUPPLY AIR BLOWER PERFORMANCE 20 TON COOLING ONLY 240 MBH BOTTOM DUCT CONNECTIONS 18 12 SUPPLY AIR BLOWER PERFORMANCE 15 TON GAS HEAT 180 MBH BOTTOM DUCT CONNECTIONS 19 13...

Page 3: ...s 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 Switch Hinged Filter Door Tool Free Access Panels 15 25 Ton Magnum Model Number Nomenclature ZZ If desired option combination is not listed above ZZ will be assigned and configuration options will be ...

Page 4: ...essor 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 by utilizing additional controls Low Ambient An integrated low ambient control allows all units to operate in the cooling mode down to 0ºF outdoor ambient without additional assis tance Optionally th...

Page 5: ...m 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 assembled before installing BAS READY ECONOMIZER Includes a slide in plug in damper assembly with fully modulating spring return motor actuator with zero to 95 degree rotation capable of introducing u...

Page 6: ...te 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 For 7 5 thru 15 hp motor applications 13 H x 8 W x 8 D If the drive will not fit in the allotted space then it will have to be mounted elsewhere either within the building on a perpendicular wall which...

Page 7: ...ESS 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 drain pan is available to provide years of trouble free operation in corrosive environ ments PHASE MONITORS Designed to prevent unit damage The phase monitor will shut the unit down in an out of pha...

Page 8: ...pressure 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 the opening in the return air panel With horizontal ductwork the accessory should be mounted on the return air duct HIGH STATIC DRIVE A smaller blower pulley and a shorter belt increase the speed of ...

Page 9: ...EER 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 COOLING ONLY DJ180C E00 178 12 0 12 5 DJ210C E00 208 11 7 12 7 DJ240C E00 230 11 3 12 0 DJ300C E00 292 10 5 11 2 COOLING WITH GAS HEAT DJ180N S 178 12 0 12 5 DJ210N S 208 11 7 12 7 DJ240N S 230 11 3 12 ...

Page 10: ...105 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 59 1 62 156 9 14 05 156 9 155 0 148 1 132 9 117 7 102 6 87 4 147 8 15 52 147 8 146 3 139 9 124 8 109 6 94 4 79 3 57 159 4 14 08 159 4 157 8 151 4 136 2 121 1 105 9 90 8 151 2 15 55 151 2 149 5 143 1...

Page 11: ...1 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 5 65 8 62 194 1 17 12 194 1 186 0 168 5 149 8 131 0 112 2 93 5 182 8 19 06 182 8 174 8 157 4 138 6 119 9 101 1 82 4 57 181 1 16 92 181 1 180 1 170 4 151 7 132 9 114 1 95 4 168 8 18 69 168 8 168 8 16...

Page 12: ...7 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 62 208 1 19 43 208 1 204 2 193 1 172 9 152 7 132 5 112 3 194 8 21 16 194 8 194 1 185 6 165 4 145 1 124 9 104 7 57 217 3 19 70 217 3 214 3 204 9 184 7 164 5 144 3 124 1 207 0 21 35 207 0 205 1 195 7 175...

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 8 101 5 62 288 3 26 67 286 9 276 4 253 4 228 1 202 8 177 6 152 3 273 3 29 07 273 3 262 9 240 0 214 8 189 5 164 2 138 9 57 276 1 26 53 276 1 270 5 254 1 228 8 203 5 178 3 153 0 257 9 28 96 257 9 254 2 238...

Page 14: ...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...

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 3 2 2 9 1 3 3 9 3 5 1 1 4 5 4 0 0 8 5 1 4 6 0 7 5 6 5 0 1065 3 5 1 6 3 4 3 0 1 4 4 0 3 6 1 2 4 7 4 2 1 0 5 5 4 9 1095 3 0 1 7 3 5 3 1 1 5 4 2 3 8 1 3 4 9 4 4 1 2 5 7 5 1 1130 2 0 1 9 3 7 3 3 1 7 4 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 6 8 5 7 1 7 7 4 6 2 1 2 8 1 6 8 1050 2 5 2 1 6 4 5 4 2 0 7 0 5 9 1 8 7 6 6 4 1 3 8 3 7 0 1075 2 0 2 3 6 6 5 5 2 1 7 2 6 0 1 9 7 8 6 6 1 5 8 6 7 2 1100 1 0 2 4 6 7 5 6 2 2 7 3 6 1 2 1 7 9 6 7 230 460...

Page 18: ...2 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 5 7 1 7 7 4 6 2 1 2 8 1 6 8 0 7 8 6 7 3 1050 2 5 2 1 6 4 5 4 2 0 7 0 5 9 1 8 7 6 6 4 1 3 8 3 7 0 1075 2 0 2 3 6 6 5 5 2 1 7 2 6 0 1 9 7 8 6 6 1 5 8 6 7 2 1100 1 0 2 4 6 7 5 6 2 2 7 3 6 1 2 1 7 9 6 7 ...

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 6 1025 4 5 1 4 3 1 2 8 1 2 3 6 3 2 0 9 4 1 3 7 0 7 4 8 4 3 0 4 5 5 4 9 1065 3 5 1 6 3 4 3 0 1 4 3 9 3 5 1 1 4 5 4 0 0 9 5 1 4 6 1125 2 0 1 9 3 6 3 2 1 7 4 4 3 9 1 4 5 0 4 5 1 2 5 8 5 2 1170 1 0 2 1 ...

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 3 2 0 6 1 5 1 1 4 7 1 6 0 0 9 8 4 7 0 1065 2 0 2 6 5 3 4 4 2 1 6 3 5 3 1 5 7 3 6 2 1 0 8 6 7 2 1100 1 0 2 9 5 6 4 7 2 3 6 8 5 7 1 8 7 9 6 6 230 460 575 VOLT AND STANDARD DRIVE 870 6 0 1 3 3 6 3 0 0 7...

Page 21: ...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 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 5 1 4 3 2 0 6 1 5 1 1 4 7 1 6 0 0 9 8 4 7 0 1065 2 0 2 6 5 3 4 4 2 1 6 3 5 3 1 5 7 3 6 2 1 0 8 6 7 2 1100 1 0 2 9 5 6 4 7 2 3 6 8 5 7 1 8 7 9 6 6 230 460 575 VOLT AND STANDARD DRIVE 870 6 0 1 3 3 6 ...

Page 22: ...0 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 1330 1 0 3 5 10 0 8 2 3 0 12 0 9 9 2 3 14 1 11 6 1 5 16 4 13 4 1365 0 0 3 7 10 5 8 6 3 2 12 6 10 3 2 6 14 7 12 1 1 8 17 0 13 9 230 460 575 VOLT AND STANDARD DRIVE 975 6 0 1 4 5 9 4 9 1 0 7 3 6 0 0 5 8...

Page 23: ...G 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 0 4 0 4 0 5 0 4 0 4 0 5 0 4 0 5 0 6 36 KW 0 3 0 4 0 5 0 4 0 5 0 5 0 4 0 5 0 5 0 5 0 5 0 6 54 KW 0 4 0 5 0 5 0 5 0 5 0 6 0 5 0 5 0 6 0 5 0 6 0 7 72 KW 0 4 0 5 0 5 0 5 0 5 0 6 0 5 0 5 0 6 0 5 0 6 0 7 ...

Page 24: ...1 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 34 6 50 7 60 E54 54 0 2 52 0 59 3 70 E72 72 0 2 69 3 76 7 90 210 17 1 2 208 25 6 190 2 1 20 0 0 0 None 0 0 86 0 110 E18 13 5 1 37 5 86 0 110 E36 27 0 2 75 1 118 7 125 E54 40 6 2 112 6 165 9 175 E72 5...

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 36 0 2 34 6 53 6 60 E54 54 0 2 52 0 62 2 70 E72 72 0 2 69 3 79 5 90 300 25 208 47 1 245 3 7 38 6 0 0 None 0 0 159 4 200 E18 13 5 1 37 5 159 4 200 E36 27 0 2 75 1 159 4 200 E54 40 6 2 112 6 189 1 200 ...

Page 26: ...1 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 34 6 55 7 60 E54 54 0 2 52 0 64 3 70 E72 72 0 2 69 3 81 7 90 210 17 1 2 208 25 6 190 2 1 20 0 10 0 None 0 0 96 0 110 E18 13 5 1 37 5 96 0 110 E36 27 0 2 75 1 131 2 150 E54 40 6 2 112 6 178 4 200 E72...

Page 27: ...14 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 36 0 2 34 6 58 6 60 E54 54 0 2 52 0 67 2 70 E72 72 0 2 69 3 84 5 90 300 25 208 47 1 245 3 7 38 6 10 0 None 0 0 169 4 200 E18 13 5 1 37 5 169 4 200 E36 27 0 2 75 1 169 4 200 E54 40 6 2 112 6 201 6 225 ...

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 AREA Sq Ft 24 CHARGE REFRIGERANT 22 Lb Oz SYSTEM No 1 23 0 24 0 23 8 23 8 SYSTEM No 2 23 8 24 0 23 8 23 8 OPERATING WEIGHTS LBS BASIC UNIT COOLING ONLY 2260 2540 2560 2660 GAS ELECTRIC N24 2460 2740...

Page 29: ...t 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 switches to the set back position NOTE Fans switch must be in ON position for minimum ventilation during heater operation LINE VOLTAGE TERMINAL BLOCK 2TB IN CONTROL BOX GROUND LUG Refer to the ELECTR...

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 MOTOR ACCESS Location of Optional VFD Bypass BLOWER ACCESS Location of Optional VFD 52 5 8 180 19 32 COMPRESSOR ACCESS DISCONNECT SWITCH LOCATION ECONOMIZER MOTORIZED DAMPER FIXED OUTDOOR INTAKE AIR AN...

Page 31: ...haust 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 return air compartments with the side duct flange accessory kit panels 2 Connect ductwork to the flanges on those panels SUPPLY AIR RETURN AIR OUTDOOR AIR 5 1 8 18 5 8 27 3 4 39 5 8 40 1 2 OUTDOOR AI...

Page 32: ...RANCES 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 installed on combustible floors made from wood or class A B or C roof covering material 0 Above Unit2 2 Units must be installed outdoors Overhanging structures or shrubs should not obstruct condenser air dis...

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: ...99 481 300 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 280 292 419 546 523 401 210 Elec 2728 317 317 455 592 592 455 240 Elec 2760 321 321 460 599 599 460 300 Elec 2846 331 331 474 618 618 474 Unit Size Total Shipping Weight 4 Point Loads lbs A B C D 6 Poi...

Page 35: ...mension 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 be made inside the curb FIGURE 10 UNIT ROOF CURB DIMENSIONS 25 1 4 FIGURE 11 ROOF CURB DUCT OPENINGS DIMENSION FIGURE 12 CUT AWAY OF ROOF CURB ...

Page 36: ...MINALS 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 required if there is no Smoke Detector circuit Jumper is required for any combination of R RC or RH 6 5 5 6 OCC is an output from the thermostat to indicate the Occupied condition X is an input to the the...

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 accessories The units shall be factory wired piped charged with R 22 refrigerant and factory tested prior to ship ment All unit wiring shall be both numbered and color coded All units shall be manufact...

Page 38: ...table 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 standard safety devices trip and shut off compressor c Loss of charge Low pressure switch 1 High pressure switch 2 Freeze protection thermostat evaporator coil If any of the above safety devices trip a LED...

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 fully modulating spring return damper actuator The maxi mum leakage rate for the outdoor air intake dampers shall not exceed 2 when dampers are fully closed and operating against a pressure differential ...

Page 40: ...r 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 RECYCLE TIMER Assures 5 minute off time between compressor cycles LOW AMBIENT KIT Provides unit cooling operation down to 0 F COIL GUARD KIT Guard for cooling coil OTHER FACTORY INSTALLED OPTIONS POWER E...

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