Operating conditions according to EN 378-2:2000 chp. 5 -14°C Brine system Propane system CO2  system 1 2 3 12 4 5 6 10 11 7 8 9 13 14 15 16 Position Type Basis of design Risk assessment Operating conditions according to EN 378-2 chp.5 Copper pipes 99.9% Cu 0.03% P. alloy C12220 Standard of production: DIN 1754 Outukumpu Maximum allowable pressure PS PSxV PSxDN Safety category for fluids in group 1 Certificate of material 1 Hot gas pipe Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC = 18 bar 7/8" DN22.3 (22.22 x 1.02) 18 403 Art. 3(3) 2 Hot gas manifold Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 1 1/8" DN28.6 (28.58 x 1.02) 18 517 Safety category 1 3.1B 3 Joint liquid pipe Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 7/8" DN22.3 (22.22 x 1.02) 18 403 Art. 3(3) 4 Liquid pipe Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 5/8" DN15.9 (15.88 x 0.9) 18 286.2 Art. 3(3) 5 Joint suction pipe Order no. 743, art. 3 Ambient temp. < 32º low pressure 32ºC => 10.3 bar 1 5/8" DN41.2 (41.28 x 1.22) 18 741.6 Safety category 1 3.1B 6 Suction pipe Order no. 743, art. 3 Ambient temp. < 32º low pressure 32ºC => 10.3 bar 1 3/8" DN34.9 (34.92 x 1.07) 18 628.2 Safety category 1 3.1B 7 T-joint (high pressure) Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 1 1/8" DN28.6 (28.58 x 1.16) 18 517 Safety category 1 Supplier’s declaration 8 90º angle (high pressure) Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 1 1/8" DN28.6 (28.58 x 1.16) 18 517 Safety category 1 Supplier’s declaration 9 90º angle (high pressure) Order no. 743, art. 3 Ambient temp. < 32º high pressure 55ºC => 18 bar 7/8" DN22.3 (22.22 x 1.02) 18 403 Art. 3(3) Supplier’s declaration 10 T-joint (low pressure) Order no. 743, art. 3 Ambient temp. < 32º low pressure 32ºC => 10.3 bar 1 5/8" DN41.2 (41.28 x 1.22) 18 743.04 Safety category 1 Supplier’s declaration 11 90º angle (low pressure) Order no. 743, art. 3 Ambient temp. < 32º low pressure 32ºC => 10.3 bar 1 5/8" DN41.2 (41.28 x 1.22) 18 743.04 Safety category 1 Supplier’s declaration Position Type Basis of design Risk assessment Operating conditions according to EN 378-2 chp. 5 Copper pipes Maximum allowable pressure PS PSxV PSxDN Safety category for fluids in group 1 Certificate of material 12 Condenser Order no. 743, art. 1 (2.1.2) Ambient temp. < 32º high pressure 55ºC = 18 bar 35 circuits 3/8" (9.53 x 0.81) 18 171.54 Art. 3(3) 12 Condenser (inlet) Order no. 743, art. 1 (2.1.2) Ambient temp. < 32º high pressure 55ºC = 18 bar 35 x 1.5 18 630 Safety category 1 3.1B 12 Condenser (outlet) Order no. 743, art. 1 (2.1.2) Ambient temp. < 32º high pressure 55ºC = 18 bar 28 x 1.5 18 504 Safety category 1 3.1B