COOL
The COOL jumper is used to determine the CFM during cooling operation. This jumper selection is activated for cooling when Y1 is energized.
The blower motor runs at 80 percent of the selected air flow for the first 7−1/2 minutes of each cooling demand. This feature allows for greater humidity removal and saves energy.
In the cooling mode, the blower control delays blower operation for 5 seconds after the compressor starts. The blower continues to operate for 90 seconds after the compressor is de−energized.
HEAT
The HEAT jumper is used to determine CFM during gas heat operation only. These jumper selections are activated only when W1 is energized.
In the heating mode, the blower control delays blower operation for 30 seconds after the flame is established. The
blower continues to operate for 90 seconds after the gas valve is de−energized.
CONTINUOUS FAN
When the thermostat is set for
and there is no demand for heating or cooling, the blower control will provide 50 percent of the COOL CFM selected.
NOTE − With the proper thermostat and subbase, continuous blower operation is possible by closing the R to G circuit. Cooling blower delay is also functional in this mode.
DEHUMIDIFICATION
The blower control includes an HUM terminal which provides for connection of a humidistat. The JV1 resistor on the blower control must be cut to activate the HUM terminal. The humidistat must be wired to open on humidity rise. When the dehumidification circuit is used, the variable speed motor will reduce the selected air flow rate by 25 percent when humidity levels are high. An LED (D1) lights when the blower is operating in the dehumidification mode.
Table 4
15GCSXAV−24, 15GCSXAV−30 Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
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ADJUST |
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| T" Speed |
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| FAN" Speed |
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A |
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| D |
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| D |
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| D |
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Jumper |
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Setting | cfm | L/s | cfm L/s |
| cfm | L/s | cfm | L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s |
| cfm L/s | cfm L/s | ||||||||||
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+ | 1150 | 545 | 920 | 435 |
| 690 | 325 | 1035 490 | 1265 | 595 | 1150 | 545 | 1035 490 | 920 | 435 | 575 |
| 270 | 460 | 215 |
| 345 | 165 | 520 | 245 | ||
NORM | 1000 | 470 | 800 | 380 |
| 600 | 285 | 900 | 425 | 1100 | 520 | 1000 470 | 900 | 425 | 800 | 380 | 500 |
| 235 | 400 | 190 |
| 300 | 140 | 450 | 210 | |
− | 850 | 400 | 680 | 320 |
| 510 | 240 | 765 | 360 | 935 | 440 | 850 | 400 | 765 | 360 | 680 | 320 | 425 | 200 | 340 160 |
| 300 | 140 | 385 | 180 | ||
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Table 5
15GCSXAV−36 Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
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ADJUST |
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A |
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| D |
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| C |
| D |
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| B |
| C |
| D |
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Jumper |
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Setting | cfm | L/s | cfm | L/s | cfm | L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s | cfm L/s |
| cfm L/s | cfm L/s | ||||||||||
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+ | 1380 | 650 | 1150 | 545 | 920 | 435 | 1265 575 | 1555 | 735 | 1265 595 | 1150 | 545 | 1035 490 | 690 |
| 325 | 575 | 270 |
| 460 | 215 | 635 | 300 | |||
NORM | 1200 | 565 | 1000 470 | 800 | 380 | 1100 | 520 | 1350 | 635 | 1100 520 | 1000 470 | 900 | 425 | 600 |
| 285 | 500 | 235 |
| 400 | 190 | 550 | 260 | |||
− | 1020 480 | 850 | 400 | 680 | 320 | 935 | 440 | 1150 540 | 935 | 440 | 850 | 400 | 765 | 360 | 510 | 240 | 425 200 |
| 350 | 165 | 470 | 220 | ||||
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Table 6
15GCSXAV−42, 15GCSX(A,B)V−48, 15GCSX(A,B)V−60, Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
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Jumper | A |
| B |
| C |
| D | A |
| B |
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| D |
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| B |
| C |
| D |
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Setting | cfm | L/s | cfm L/s |
| cfm L/s | cfm L/s | cfm L/s | cfm L/s |
| cfm L/s | cfm L/s | cfm L/s | cfm L/s |
| cfm L/s | cfm L/s | ||||||||
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+ | 2070 | 975 | 1840 870 |
| 1610 760 | 1380 650 | 2015 | 950 | 1900 895 |
| 1555 735 | 1325 625 | 1035 | 490 | 920 | 435 |
| 805 | 380 | 690 | 325 | |||
NORM | 1800 | 850 | 1600 755 |
| 1400 660 | 1200 565 | 1750 | 825 | 1650 780 |
| 1350 635 | 1150 545 | 900 | 425 | 800 | 380 |
| 700 | 330 | 600 | 285 | |||
− | 1530 | 720 | 1360 640 |
| 1190 | 560 | 1020 480 | 1490 | 700 | 1405 660 |
| 1150 | 540 | 980 | 460 | 765 | 360 | 680 | 320 |
| 595 | 280 | 510 | 240 |
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