193 | COOLING SOLUTIONS diversitech.com | 800.995.2222 ©2022 DiversiTech Corporation. All Rights Reserved 1. The first letter of the denomination (P, T, D, N, F, S, G or X) indicates compres- sor series. 2. The second letter indicates motor pro- tection placing. LV or V means variable speed compressors. 3. E, Y, X and U mean different energy optimization steps. S means semi direct suction. On all these mentioned types the indicated suction connector has to be used. Using the wrong connector as suction connector will lead to reduced capacity and efficiency. 4. A number indicates the displacement in cm3, but for PL compressors the num- ber indicates the nominal capacity. 5. The letter after the displacement indi- cates which refrigerant must be used as well as the field of application for the compressor. LBP (Low Back Pressure) indicates the range of low evaporating temperatures, typically -10°C down to -35°C or even -45°C, for use in freezers and refrigerators with freezer compart- ments. MBP (Medium Back Pressure) indicates the range of medium evapo rating temperatures, typically -20°C up to 0°C, such as in cold cabinets, milk coolers, ice machines and water cool- ers. HBP (High Back Pressure) indicates high evaporating temperatures, typi- cally -5°C up to +15°C, such as in dehu- midifiers and some liquid coolers. T as extra character indicates a compressor intended for tropical application. This means high ambient temperatures and capability of working with more unstable power supply. 6. The next letter in the compressor denomination provides information on the starting torque. If, as principal rule, the compressor is intended for LST (Low Starting Torque) and HST (High Starting Torque), the place is left empty. The starting characteristics depend on the electrical equipment chosen. K indicates LST (capillary tube and pressure equal- ization during standstill) and X indicates HST (expansion valve or no pressure equalization). Exception: X-Series com- pressors. 7. The final letter (separated by a dot) mentions the generation of the compressor. SECOP® 5 6 7 Application range Refrigerant Code letter for starting characteristics Generation C = LBP CL = LBP CM = LBP CN = LBP/MBP CNL = LBP D = HBP DL = HBP F = LBP/(MBP) FT = LBP tropical G = LBP/MBP/HBP GH = Heat pumps GHH = Heat pumps optimized K = LBP/(MBP) KT = LBP/(MBP) tropical MF = MBP MK = MBP ML = MBP MN = MBP S = LBP/HBP (service) ST = LBP tropical (service) R22 R404A/R507 R22 R290 R290 R22 R404A/R507/R407C R134a R134a R134a R134a R134a R600a R600a R134a R600a R404A/R507 R290 R426A R401A/R401B R409A/R409B R426A R401A/R401B R409A/R409B Blank > universal (principal rule) K = LST characteristics (capillary tube) X = HST characteristics (expansion valve) Blank > first generation .1 > updated first generation .2 > second generation .3 > third generation .4 > fourth generation pulsory ional cates the range of low evaporating temperatures, typically -10°C down to -35°C or even -45°C, for rs with freezer compartments. MBP (Medium Back Pressure) indicates the range of medium evapo -20°C up to 0°C, such as in cold cabinets, milk coolers, ice machines and water coolers. HBP (High evaporating temperatures, typically -5°C up to +15°C, such as in dehumidifiers and some liquid cool 5 6 7 Application range Refrigerant Code letter for starting characteristics Generation K = LBP/(MBP) R600a X = LST & HST characteristics (capillary tube & expansion valve) Blank > first generation K= LBP/(MBP) GHH = Heat pumps optimized a) = Run capacitor compulsory b) = Run capacitory optional K = LBP/(MBP) 5 6 7 Application range Refrigerant Code letter for starting characteristics Generation C = LBP CL = LBP CM = LBP CN = LBP/MBP CNL = LBP D = HBP DL = HBP F = LBP/(MBP) FT = LBP tropical G = LBP/MBP/HBP GH = Heat pumps GHH = Heat pumps optimized K = LBP/(MBP) KT = LBP/(MBP) tropical MF = MBP MK = MBP ML = MBP MN = MBP S = LBP/HBP (service) ST = LBP tropical (service) R22 R404A/R507 R22 R290 R290 R22 R404A/R507/R407C R134a R134a R134a R134a R134a R600a R600a R134a R600a R404A/R507 R290 R426A R401A/R401B R409A/R409B R426A R401A/R401B R409A/R409B Blank > universal (principal rule) K = LST characteristics (capillary tube) X = HST characteristics (expansion valve) Blank > first generation .1 > updated first generation .2 > second generation .3 > third generation .4 > fourth generation pulsory ional cates the range of low evaporating temperatures, typically -10°C down to -35°C or even -45°C, for rs with freezer compartments. MBP (Medium Back Pressure) indicates the range of medium evapo -20°C up to 0°C, such as in cold cabinets, milk coolers, ice machines and water coolers. HBP (High evaporating temperatures, typically -5°C up to +15°C, such as in dehumidifiers and some liquid cool 5 6 7 Application range Refrigerant Code letter for starting characteristics Generation K = LBP/(MBP) R600a X = LST & HST characteristics (capillary tube & expansion valve) Blank > first generation
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