Changing Blower Speed - Rheem RHWB-04WMP36A Installation Instructions Manual

TABLE 6 HYDRONIC AIR HANDLER AIR FLOW PERFORMANCE - RHWB
Blower / Motor HP
Model
Inches [mm]
11 x 7
RHWB-
[279 x 178] /
04WMP36
1/2 [373]
11 x 7
RHWB-
[279 x 178] /
06WMP48
3/4 [559]
11 x 10
RHWB-
[279 x 254
08WRP60
3/4 [559]
11 x 10
RHWB-
[279 x 254] /
10WRP60
3/4 [559]
11 x 7
RHWB-
[279 x 178] /
04WMX36
1/2 [343]
11 x 7
RHWB-
[279 x 178] /
06WMX48
3/4 [559]
11 x 10
RHWB-
[279 x 254] /
08WRX60
3/4 [559]
11 x 10
RHWB-
[279 x 254] /
10WRX60
3/4 [559]
Note: When selecting a motor speed tap, use the lowest speed tap possible to achieve the rated cooling air-flow at the external static
pressure for the application (including cooling coil).
DIRECT DRIVE
INSTRUCTIONS FOR
CHANGING BLOWER
SPEED
WARNING
DISCONNECT THE ELECTRICAL
SUPPLY TO THE AIR HANDLER
BEFORE ATTEMPTING TO
CHANGE THE BLOWER SPEED.
FAILURE TO DO SO CAN CAUSE
ELECTRICAL SHOCK RESULTING
IN PERSONAL INJURY OR DEATH.
The blower motor must be wired for
blower speeds required for normal
operation.
CFM [L/s] Air Delivery External Static Pressure Inches Water Column [kPa]
Speed 0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.19] 0.9 [.22] 1.0 [.24]
Low 794 [375] 775 [366] 749 [353] 719 [339] 686 [324] 655 [309] 621 [293] 590 [278] 534 [252] 473 [223]
M-Lo 1036 [489] 1024 [483] 1002 [473] 977 [461] 922 [435] 895 [423] 865 [408] 826 [390] 761 [359] 689 [325]
M-Hi 1202 [567] 1176 [555] 1160 [547] 1100 [519] 1073 [506] 1047 [494] 1008 [476] 969 [457] 926 [437] 890 [420]
High 1356 [640] 1336 [631] 1301 [614] 1266 [597] 1235 [583] 1202 [567] 1156 [546] 1093 [516] 1030 [486] 959 [453]
Low 921 [435] 915 [432] 886 [418] 876 [413] 855 [404] 841 [397] 817 [386] 780 [368] 734 [346] 690 [326]
M-Lo 1189 [561] 1180 [557] 1179 [556] 1137 [537] 1131 [534] 1102 [520] 1072 [506] 1030 [486] 985 [465] 915 [432]
M-Hi 1335 [630] 1315 [621] 1306 [616] 1307 [617] 1277 [603] 1246 [588] 1210 [571] 1161 [548] 1090 [514] 1019 [481]
High 1841 [869] 1795 [847] 1747 [824] 1681 [793] 1622 [765] 1560 [736] 1500 [708] 1420 [670] 1358 [641] 1288 [608]
Low 1319 [623] 1307 [617] 1300 [614] 1240 [585] 1236 [583] 1210 [571] 1177 [555] 1149 [542] 1100 [519] 1032 [487]
M-Lo 1484 [700] 1480 [698] 1471 [694] 1463 [690] 1418 [669] 1385 [654] 1359 [641] 1314 [620] 1246 [588] 1166 [550]
M-Hi 1687 [796] 1676 [791] 1671 [789] 1611 [760] 1586 [749] 1553 [733] 1513 [714] 1453 [686] 1389 [656] 1284 [606]
High 1971 [930] 1974 [932] 1948 [919] 1929 [910] 1871 [883] 1806 [852] 1751 [826] 1699 [802] 1610 [760] 1511 [713]
Low 1299 [613] 1294 [611] 1308 [617] 1279 [604] 1257 [593] 1231 [581] 1205 [569] 1165 [550] 1122 [530] 1053 [497]
M-Lo 1515 [715] 1519 [717] 1499 [707] 1487 [702] 1415 [668] 1418 [669] 1394 [658] 1348 [636] 1296 [612] 1221 [576]
M-Hi 1684 [795] 1695 [800] 1693 [799] 1663 [785] 1620 [765] 1586 [749] 1569 [740] 1514 [715] 1451 [685] 1365 [644]
High 1954 [922] 1971 [930] 1974 [932] 1982 [935] 1973 [931] 1944 [917] 1917 [905] 1818 [858] 1775 [838] 1700 [802]
Low 960 [453] 891 [420] 836 [394] 781 [368] 731 [344] 682 [322] 630 [297] 578 [273] 540 [255] 460 [217]
Med-low 1178 [555] 1118 [527] 1068 [504] 1017 [479] 973 [459] 922 [435] 877 [414] 833 [393] 781 [369] 730 [345]
Med-high 1323 [624] 1269 [598] 1222 [576] 1180 [556] 1130 [533] 1089 [514] 1051 [496] 1006 [475] 958 [452] 914 [431]
High 1481 [698] 1431 [675] 1381 [651] 1333 [629] 1291 [609] 1250 [590] 1209 [571] 1168 [551] 1122 [530] 1085 [512]
Low 1092 [515] 1037 [489] 992 [468] 938 [442] 896 [422] 849 [401] 790 [373] 739 [349] 689 [325] 633 [299]
Med-low 1360 [641] 1308 [617] 1264 [596] 1222 [576] 1174 [554] 1138 [537] 1095 [517] 1027 [485] 988 [466] 945 [446]
Med-high 1462 [689] 1424 [672] 1378 [650] 1340 [632] 1300 [614] 1263 [596] 1223 [577] 1185 [559] 1147 [541] 1111 [524]
High 1779 [839] 1743 [822] 1716 [809] 1674 [790] 1698 [801] 1662 [784] 1624 [776] 1588 [749] 1525 [720] 1427 [673]
Low 1533 [723] 1475 [696] 1412 [666] 1357 [640] 1287 [607] 1239 [585] 1185 [559] 1129 [533] 1069 [505] 1002 [473]
Med-low 1658 [782] 1604 [757] 1551 [731] 1500 [707] 1438 [679] 1392 [657] 1336 [631] 1277 [603] 1231 [581] 1174 [554]
Med-high 1842 [869] 1782 [841] 1747 [824] 1701 [802] 1645 [776] 1601 [756] 1547 [730] 1502 [709] 1456 [687] 1401 [661]
High 2131 [1005] 2074 [978] 2030 [958] 1969 [929] 1929 [910] 1885 [890] 1833 [865] 1786 [843] 1744 [823] 1688 [797]
Low 1598 [754] 1533 [723] 1471 [694] 1401 [661] 1344 [634] 1286 [607] 1221 [576] 1162 [548] 1099 [519] 1020 [481]
Med-low 1731 [816] 1674 [790] 1605 [757] 1546 [729] 1488 [702] 1435 [607] 1377 [650] 1320 [623] 1264 [597] 1206 [569]
Med-high 1943 [916] 1877 [885] 1822 [859] 1762 [831] 1707 [806] 1651 [779] 1609 [759] 1552 [732] 1498 [707] 1446 [682]
High 2197 [1036] 2151 [1015] 2095 [988] 2047 [966] 1995 [942] 1949 [920] 1896 [895] 1847 [872] 1800 [850] 1745 [824]
If additional blower speed taps are
available (leads connected to "M1" and
"M2" on the electronic control), speeds
may be changed if necessary to fit
requirements of the particular
installation. Reconnect the unused
motor leads to "M1" or "M2." Check
motor lead color for speed designation.
Heating speeds should not be
reduced where it could cause the air
handler air temperature rise to
exceed the maximum outlet air
temperature specified for the unit.
IMPORTANT: Always check air
temperature rise after changing the
heating speed for any reason.
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