Lennox CBX25UHV-018, Installation Instructions Manual

Page: 19 / 25

Page 19
MERIT
®
CBX25UHV SERIES
Table 5. Merit
®
CBX25UHV‐030 Air Handler Performance (0 through 0.80 in. w.g. [0 — 200 Pa] External Static Pressure Range)
“ADJUST”
Jumper
Setting
Jumper Speed Positions
“HEAT” Speed First-Stage “COOL” Speed Second-Stage “COOL” Speed
1 2 3 4 1 2 3 4 1 2 3 4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
+ 650 900 1100 1320 430 600 740 920 650 875 1100 1330
NORM 590 795 1000 1200 390 550 680 830 580 800 1000 1200
– 520 730 895 1075 340 475 620 750 500 700 900 1090
NOTES ­
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First-stage cooling air volume is 70% of COOL (second-stage) speed setting. Continuous blower speed is approximately 50% of COOL speed setting.
Lennox Harmony III™ Zoning System applications ­ minimum blower speed is 250 cfm.
Table 6. Merit
®
CBX25UHV‐036 Air Handler Performance (0 through 0.80 in. w.g. [0 — 200 Pa] External Static Pressure Range)
“ADJUST”
Jumper
Setting
Jumper Speed Positions
“HEAT” Speed First-Stage “COOL” Speed Second-Stage “COOL” Speed
1 2 3 4 1 2 3 4 1 2 3 4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
+ 880 1115 1345 1435 615 770 930 1090 880 1110 1340 1435
NORM 800 1010 1215 1425 555 695 845 990 795 1005 1215 1420
– 715 905 1095 1275 505 625 755 885 715 905 1090 1280
NOTES ­
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First-stage cooling air volume is 70% of COOL (second-stage) speed setting. Continuous blower speed is approximately 50% of COOL speed setting.
Lennox Harmony III™ Zoning System applications ­ minimum blower speed is 250 cfm.
Table 7. Merit
®
CBX25UHV‐042 Air Handler Performance (0 through 0.80 in. w.g. [0 — 200 Pa] External Static Pressure Range)
“ADJUST”
Jumper
Setting
Jumper Speed Positions
“HEAT” Speed First-Stage “COOL” Speed Second-Stage “COOL” Speed
1 2 3 4 1 2 3 4 1 2 3 4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
+ 1115 1345 1560 1800 800 960 1120 1265 1130 1360 1580 1800
NORM 1025 1215 1415 1630 730 870 1020 1150 1040 1240 1450 1640
– 925 1110 1280 1460 650 790 915 1050 950 1120 1290 1470
NOTES ­
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First-stage cooling air volume is 70% of COOL (second-stage) speed setting. Continuous blower speed is approximately 50% of COOL speed setting.
Lennox Harmony III™ Zoning System applications ­ minimum blower speed is 450 cfm.