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Bosch Multi-Position Cased Coils Installation Manual
03.2017 | Bosch Thermotechnology Corp.Data subject to change
5 Refrigerant connections
NOTICE:
Gently remove the sealing plug of vapor line, use one wrench
to fix the valve base, loosen the nut with another wrench,take
out the flange pad and and sealing ring. The nitrogen pressure
is about 10 PSIG.
To prevent refrigerant leak, use proper tools to ensure clean, burr-free cut.
NOTICE:
TXV bulb MUST be protected (wrapped with wet rag) or
removed, while brazing the tubing. Overheating of the
sensing bulb will affect the functional characteristics and
performance of the comfort coil.
Use brazing shield when brazing close to the cabinet surface and wet rag to protect
rubber grommet. Brazing alloy should be at least 5% silver content.
5.1 Airfl ow performance [CFM vs pressure drop]:
Model
Pressure Drop (Inches of Water)
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
BMAC2430ANTD 307 485 618 729 823 911 991 1063
BMAC2430BNTD 327 527 682 810 925 1024 1122 1217
BMAC2430CNTD 360 585 748 893 1019 1132 1238 1348
BMAC3036ANTD 307 485 618 729 823 911 991 1063
BMAC3036BNTD 327 527 682 810 925 1024 1122 1217
BMAC3036CNTD 360 585 748 893 1019 1132 1238 1348
BMAC4248BNTF 456 638 810 953 1077 1191 1284 1390
BMAC4248CNTF 505 726 932 1098 1244 1375 1494 1604
BMAC4248DNTF 533 857 1105 1319 1509 1675 1824 1956
BMAC4860CNTF 439 699 906 1071 1224 1362 1487 1589
BMAC4860DNTF 466 764 978 1157 1313 1466 1590 1695
Table 2 Pressure drop for cooling and heat pump coils
*Data based on wet coil with entering air at 80°F DB / 67°F WB without air fi lter.
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