MINIB, s. r. o., Støešovická 49, 162 00 Praha 6 CZ, [email protected] tel.: +420 220 180 780, +420 604 767 677 fax: +420 220 180 779 www.minib.cz 11 without a fan COIL – PT CHARACTERISTICS 6 for heating dry interiors 6 the most popular convector without a fan 6 supplied with thermostatic head as standard DIMENSIONS total width 303 mm construction height 125 mm length 900 to 3000 mm USAGE COIL – PT is recommended to be used individually for dry interiors with lower heating demands. The convector can be combined with the COIL – KT or COIL – KO that have a higher heat output. COIL – PT TEMPERATURE EQUATION Q=ì Q ( ) N t m w - ta 50 m= temperature exponent 1,3932 tW, A mean heating water temperature, mean air temperature in the interior [ºC] QN nominal heat transfer rate for difference of temperatures tw - tA = 50 ºC [W] ì ì=1 (select ì according to the diagram for other than nominal flow values) Q heat transfer rate for other temperatures [W] CROSS SECTION OF COIL-PT Window LONGITUDINAL SECTION COIL-PT length L (mm) 900 mean air temperature tA 15 20 22 mean water temperature tW 90 436 396 381 80 358 320 305 70 283 248 234 50 151 122 111 length L (mm) 1000 15 20 22 mean water temperature tW 90 509 462 444 80 417 373 356 70 331 289 273 50 176 142 129 length L (mm) 1250 15 20 22 mean water temperature tW 90 691 628 603 80 566 506 483 70 449 393 371 50 239 193 175 length L (mm) 1500 15 20 22 mean water temperature tW 90 873 793 761 80 715 640 610 70 567 496 469 50 302 244 221 length L (mm) 1750 15 20 22 mean water temperature tW 90 1 055 958 920 80 864 773 737 70 685 600 566 50 365 294 267 length L (mm) 2000 15 20 22 mean water temperature tW 90 1 237 1 123 1 079 80 1 013 906 864 70 803 703 664 50 428 345 313 length L (mm) 2500 15 20 22 mean water temperature tW 90 1 600 1 454 1 396 80 1 311 1 173 1 119 70 1 039 910 859 50 553 446 406 length L (mm) 3000 15 20 22 mean water temperature tW 90 1 964 1 784 1 713 80 1 609 1 439 1 373 70 1 275 1 116 1 055 50 679 548 498 52 61 63 303 75 63 305 125 136 72 62 101 Ø30 Ø30 HEAT TRANSFER RATE q [W] coil – PT