HEATING CAPACITY
4 Pipes System Fan Speed : High (1 Row Coil) Unit: Btu/h (1Btu = 0.2928104W)
Entering Air Temperature 69.8ºF (21ºC)(DB)
Entering Water TemperatureºF ºC
Unit Size
Water
Flow
l/min
W.P.D
kPa
104(40) 113(45) 122(50) 131(55) 140(60) 149(65) 158(70) 167(75) 176(80) 185(85)
2 2 2350 2970 3790 4570 5220 6470 7540 10030 10920 11360
3 5 2900 3720 4270 5150 6380 7470 9890 10880 11980 12940
4 8 3410 4200 5080 6450 7340 9790 10650 11910 13510 13120
MCW200H
6 18 4400 4980 6350 6860 9520 10440 11810 13440 14540 15500
2 2 3360 4200 5030 5870 6720 7560 8930 9230 10070 13460
3 5 4250 5290 6360 7420 8480 9550 10610 11670 12730 16970
4 8 4850 6070 7280 8500 9710 10920 12130 13340 14550 19880
MCW300H
6 18 5680 7100 8510 9950 11360 12780 14190 15630 17040 21640
2 4 5310 6520 7970 9300 10630 11960 13270 14540 15930 17260
3 9 6520 8140 13000 11400 13000 14650 16290 17910 19520 21350
4 15 7320 9160 10990 12690 14650 16410 18310 20150 21970 25930
MCW400H
6 32 8630 10800 12950 15120 17260 19430 21600 23750 25660 28120
2 5 6380 8050 9660 11260 12780 14570 16190 17790 19410 25760
3 10 7710 9690 11740 13630 15420 17200 19520 21310 23340 31520
4 17 8680 10990 13200 15460 17470 19820 22160 24380 26580 33590
MCW600H
6 36 10270 13000 15700 18460 21120 23850 26550 28980 31850 41690
2 6 7150 8920 10710 12500 14280 16070 17860 19640 21430 28960
3 12 8600 10750 12900 15050 17200 19350 21480 23630 25780 30450
4 21 9710 12130 14550 16990 19410 21840 24260 26700 29120 39870
MCW800H
6 45 11530 14420 17280 20160 23050 25930 28810 31700 34580 40120
4 4 8090 10180 12830 14840 17040 18700 23710 25150 29040 30240
6 9 11050 12900 16550 17200 22140 24840 27710 29750 36290 41560
9 18 14090 15970 20230 21090 27130 29510 36060 37600 41220 52430
MCW1000H
12 31 15870 19140 20660 24770 33230 36610 39680 44150 48420 58600
4 4 10170 12080 14360 17830 20370 21970 26100 28200 31560 43210
6 9 12440 14570 19280 21670 24400 27230 32120 35060 37800 51200
9 20 15290 18490 23070 26940 30160 33420 38730 42290 46110 57890
MCW1200H
12 35 17150 21030 27240 31250 37020 39820 43980 78380 52780 69880
Note:
1. The heating capacity of the medium speed and low speed can be calculated by
the Speed Correction Factor.
2. The heating capacity under different entering air temperature, calculating as
following example of MCW600C:
Step 1: Heating capacity of MCW600C is 38640Btu/h under below condition:
Water Flow 18 l/min, Water Temperature 140ºF (60ºC), Air Temperature
69.8ºF (21ºC)
MODEL MEDIUM LOW
MCW200H 0.86 0.72
MCW300H 0.83 0.71
MCW400H 0.88 0.72
MCW600H 0.84 0.73
MCW800H 0.85 0.76
MCW1000H 0.83 0.73
MCW1200H 0.85 0.74
Step 2: Variance of heating capacity when entering air temperature varies 1ºF:
38649 / (140 - 69.8) = 550.4Btu/ºF
Step 3: The heating capacity after modification under entering air temperature:
64.4ºF (18ºC) 550.4 x (140 - 64.4) = 41610.2Btu/h
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