Pressure Temperature Chart

1 Conversions and FormulasPressure Temperature making your life easier COIL Temperature Chart INSTRUCTIONSS elect design Temperature for your evaporator and condenser-Match to approx. operational - 120 condensing / 40 evaporator approx. 234 psig head / 60 psig suctionHot Shot - 100 condensing / 28 evaporatorapprox. 126 psig head / 26 psig suctionNU-22 - 100 condensing / -30 evaporatorapprox. 176 psig head / 3 psig evaporatorHot Shot - 100 condensing / -20 evaporatorapprox. 126 psig head / 0 psig suctionCUBIC of WATER COLUMN2547= + 32=FAHRENHEITS ingle PhaseLoadsW = WattsI = AmperesE = VoltageR = OhmsTo obtain any value in the center circle, perform the operationin the adjacent segment of the outer Load Current = Watts (1 )VoltageFull Load Current = Watts (3 ) x VoltageVolts = Amps x ResistanceWatts = Volts x AmpsWATER SIDE - Chillers,CondensersBTUH = 500 x GPM x T BTUH 500 x GPMGALLON of WATER = lbs/GAL x 60 = 500 lbs/hrDENSITY = lbs/cubic ft GPM x Ft.

2 Water Pump Eff. x 3960 Approx. Weights of Refrigerant in CU lines - lbs/100 Lineal FeetLine Size Refrigerant Suction LiquidLine Size Refrigerant Suction 1 3 5 1 (Does not apply to residential appliances)Air Cooled condensing unitINDOOR - NO FAN CYCLING - per HP Hot Shot - Two (2) pounds NU-22 - Three (3) pounds Plus the liquid line weightOUTDOOR - FLOODED CONDENSER - per HP Hot Shot - Four (4) pounds NU-22 - Five (5) pounds Plus the liquid line weightOUTDOOR FAN CYCLING - per HP Hot Shot - Three (3) pounds NU-22 - Four (4) pounds Plus the liquid line weightWATER COOLED CONDENSING UNIT - per HP Hot Shot - One (1) pound NU-22 - Two (2) pounds Plus the liquid line weight* NU-22 RESIDENTIAL A/C APPLICATIONSUSE A 1 / 1 CHARGING RATIOAIR COILS - In BTUHQ sensible = x CFM x TQlatent = x CFM x SH Qtotal = x CFM x HQ = Heat Flow in BTUHSH = Specific Humidity(grains of moisture)H = EnthalpyAlways unload the cylinder in liquid phase.

3 Don t clear the sightglass. As temperatureapproaches design, verify superheat, adjust charge if necessary to optimize IR EE2RE2 WWI212 x REx 11x RWx R E RWEWIEIW RICOR International Coil Temperature ChartHOT SHOT and NU-22 Evaporator CondensingDesign Temp. F -40 -38 -36 -34 -32 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 46NU-22 PSIG 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 22 24 25 Hot Shot PSIG 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Hot Shot PSIG 131415161718192224 252628303234363840424446485052 Design Temp. F 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54NU-22 PSIG 27 28 30 32 34 36 38 40 42 44 46 48 51 53 55 58 61 63 66 69 72 75 78 81NU-22 PSIG 151 156 161 166 171 176 182 187 193 198 204 210 216 Hot ShotPSIG 106 110 112 116 121 126 131 136 141 145 149 154 159 DesignTemp.

4 F116 118 120 122 124 126 128 130 132 134 136 138 140NU-22 PSIG 222 228 234 241248254261 267 275 282 289 317 305 Hot ShotPSIG 164 169 174 180 184 190 196 200 204 210 216 222 227 Design Temp. F 90 92 94 96 98 100 102 104 106 108 110 112 114 KILOWATT T =CHARGING TIPS-REFRIGERATION APPLICATIONSPump HP = Pressure Temp Chart -'01 10/31/01 2:54 PM Page 1 EVAPORATORSUCTIONCOMPRESSORCHECK SUCTIONPRESSUREDISCHARGELIQUIDCONDENSERC HECK LIQUIDPRESSURE(always use bubblepoint for conversion)CHECK LIQUIDTEMPERATURE(always use dew point for conversion)Check at evap. ifpossible, add for suctionline Pressure drop iftaken at SUCTIONTEMPERATURESUCTION Temperature -- EVAPORATOR Temperature = SUPERHEATCONDENSING Temperature -- LIQUID Temperature = SUBCOOLINGSUPERHEATSUBCOOLINGT emperature F -40 -38 -36 -34 -32 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -20 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140R-417A BUBBLE POINT DEW POINT

5 220 253 260 329 BUBBLE POINT 142 165 185 224 230 255R-414B DEW POINT 95 199 87 90 171 37 60 90 97 112 120 156 166 193 174 179 Chart - PSIG vs TemperatureTemperature - F Refrigerant - PSIGBold Italics = IN.

6 HgFor 5000 ft. elevation PSIG + Temp Chart -'01 10/31/01 2:54 PM Page 2