Évaluations - 3, GPA: 3.3
(
)
)
|
Facilité d'utilisation
of water) Min/Max GPM Sound Class” Max. Mounting Height (ft.)* Heat Spread at Max. Height* Cfm Outlet Velocity (Fpm) Final Air Temp. (°F) BH-18 13,000 1.3 0.49 0.3/5.0 II 9 18 400 500 90 BH-24 17,300 1.7 0.83 0.3/5.0 II 10 20 450 570 96 BH-33 24,500 2.5 0.12 0.4/10.0 II 11 22 630 495 96 BH-47 33,800 3.4 0.21 0.4/10.0 III 13 26 730 580 103 BH-63 46,500 4.7 0.47 0.5/15.0 III 15 30 1120 590 98 BH-86 61,900 6.2 0.79 0.5/15.0 III 16 31 1340 710 103 BH-108 81,000 8.1 0.85 0.5/20.0 III 16 33 1550 605 108 BH-121 90,000 9.0 1.04 0.7/20.0 III 17 36 1775 690 107 BH-165 133,000 13.3 2.48 2.0/30.0 IV 18 38 2500 735 109 BH-193 156,000 15.6 3.35 2.0/30.0 IV 19 40 2900 850 110 BH-258 198,000 19.8 3.54 2.5/40.0 V 20 42 3900 895 107 BH-290 224,000 22.4 4.45 2.5/40.0 V 21 46 4300 990 108 BH-340 273,000 27.3 3.24 2.5/50.0 V 22 50 5130 945 109 BV-42 30,500 3.1 0.09 0.5/10.0 II 11 15 17 11 950 776 91 BV-59 44,300 4.5 0.18 0.8/15.0 II 14 19 21 15 1150 940 97 BV-78 58,500 6.0 0.43 1.0/20.0 II 15 21 23 16 1550 990 96 BV-95 71,000 7.2 0.61 1.3/25.0 II 17 23 25 17 1775 1132 99 BV-139 111,000 11.3 0.84 1.0/30.0 III 18 25 28 19 2500 1281 103 BV-161 128,800 13.1 1.11 1.3/40.0 III 22 30 33 21 2900 1488 103 BV-193 142,700 14.5 0.81 1.5/50.0 IV 24 33 36 24 3900 1640 95 BV-212 159,000 16.1 0.98 2.0/60.0 IV 25 35 37 25 4300 1809 96 BV-247 197,000 19.9 1.65 2.0/60.0 IV 27 36 40 27 5130 1803 97 BV-279 220,000 22.2 2.01 2.3/75.0 V 31 39 47 31 5800 2037 97 BV-333 265,000 26.7 1.27 2.8/75.0 V 30 38 46 30 6600 1966 99 BV-385 308,000 31.1 1.68 3.3/75.0 VI 33 40 49 33 7860 1928 97 BV-500 403,000 40.9 2.32 3.0/100.0 VI 40 48 60 40 10790 2487 94 BV-610 459,000 46.3 2.42 6.0/100.0 VI 39 47 58 40 12350 2343 97 d w Q ai NN < H 2 O N 2 o X b d w > w Q Pi NN £ NN Pi Table 10: Hot Water Performance Data -- Reduced Motor Speed Model Type Model Number BTU/Hr. WATER DATA AIR DATA GPM Pressure Drop (ft. of water) Sound Class** Max. Mounting Height (ft.)* Heat Spread at Max. Height* Cfm Outlet Velocity (Fpm) Final Air Temp. (°F) BH-18 10,660 1.3 0.49 I 9 13 310 390 92 BH-24 14,186 1.7 1.83 I 10 14 350 450 98 BH-33 20,090 2.5 0.12 I 11 16 490 390 98 BH-47 27,716 3.4 0.21 II 13 18 565 455 105 BH-63 38,130 4.7 0.47 II 15 21 870 460 101 BH-86 50,758 6.2 0.79 II 16 22 1040 550 105 BH-108 66,420 8.1 0.85 II 16 23 1240 485 110 BH-121 73,800 9.0 1.04 II 17 26 1415 555 108 BH-165 109,060 13.3 2.48 III 18 27 1990 590 111 BH-193 127,920 15.6 3.35 III 19 28 2310 680 111 Û- tu > J tu Q Û- 52 -J i z o ôî o æ Units with horizontal louvers open 30° from vertical plane, vertical types equipped with cone jet deflector, blades fully opened are shown in bold. Non-bolded mounting height/spread data is for units without deflectors. Please see page 21 for additional outlet accessory performance data. See page 7 for Sound Class Definitions. 17 G. SELECTION PROCEDURE - HOT WATER APPLICATION Example 1: GIVEN DESIGN CONDITIONS: Unit Heater Model: BV-59, Entering Water Temperature: 250°F, Entering Air Temperature: 70°F APPLICATION PROCEDURE: 1. Capacity: BtuA= BtuS x Heating Capacity Factor =44,300 x 1.272 = 56,350 Btu/hr • • The standard capacity of an BV-59 is 44,300 Btu/hr from Table 9. Steam heating capacity conversion factor for given circumstance is1.272 from Table 11. 2. Water Flow Rate: Same as standard • The standard capacity on BV-59 is based upon a water flow rateof 4.5 GPM, from Table 9. 3. Final Air Temperature: FATa = EATa + [(460 + EATa) / (576 x CfmS) / BtuA -1)] FATa = 70°F + [(460 + 70) / (576 x 1150) / 56,350-1)] = 119°F • The standard airflow of an BV-59 is 1150 CFM, from Table 9. 4. Max. Mounting Height: WTDa = BtuA / (480 x GA) = 56,350 / (480 x 4.5) = 26.09°F • The standard capacity on BV-59 is based upon a water flow rate of 4.5 GPM, from Table 9. 5. Max. Mounting Height: MMHA = MMHS x Correction Factor = 14 feet x 0.86 = 12.0 feet • • The max. mounting height at standard condition is 14 feet, from Table 9. The mounting height correction factor is 0.86 from Table 14. Example 2: GIVEN DESIGN CONDITIONS: Horizontal Air Delivery requested, Heating Load: 120,000 Btu/hr, Entering Air Temp.: 50°F, Entering Water Temp.: 180°F APPLICATION PROCEDURE: 1. Unit Selection: BtuS= BtuA x Heating Capacity Factor =120,000 / 0.940 = 127,660 Btu/hr (at standard conditions). Select BH-165. • Hot Water heating capacity conversion factor for given circumstance is 0.940 from Table 11. 2. Actual Heating Capacity: The capacity of an BH-165 at actual conditions will be BtuA = BtuX x Heating Capacity Factor = 133,000 x 0.940 = 125,020 Btu/hr • Hot Water heating capacity conversion factor for given circumstance is 0.940 from Table 11. 3. Final Air Temperature: FATa = EATa + [(460 + EATa) x (BtuA)/ (576 x CfmS)] = 50 x [(460 + 50 x (125,020) / (576 x 2500)] = 94°F • Cfm for given circumstance is 2500 from Table 9. 4. Water Temperature Drop: WTDa = BtuA / (48...
Ce manuel est également adapté pour les modèles :Ventilateurs - BH (1.16 mb)