York PREDATOR 120 Installation Manual page 27

035-17311-002-A-0803
TABLE 21: 12-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE
‡
0
ESP
††
CFM BHP
W
0.4 5078 3630 3.89
0.6
4865 3456 3.71
0.8
4642 3284 3.52
1.0
4408 3114 3.34
1.2
4164 2947 3.16
1.4 3910 2787 2.99
*.
Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.
†.
Blower performance includes two-inch throwaway filters.
‡.
ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been
deducted from the total static pressure of the blower.
**.
"Turns Open" refers to the setting of the variable pitch motor sheave, where "0 Turns Open" is fully closed.
††.
W = Watts
TABLE 22: 12-1/2 TON OPTIONAL MOTOR DOWN SHOT BLOWER PERFORMANCE
‡
0
ESP
††
CFM BHP
W
0.4 5994 5400 5.79
0.6 5824 5216 5.59
0.8 5641 5022 5.39
1.0 5444 4819 5.17
1.2 5233 4609 4.94
1.4
5009 4394 4.71
1.6
4771 4174 4.48
1.8
4520 3951 4.24
2.0 4255 3728 4.00
2.2 3976 3505 3.76
*.
Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.
†.
Blower performance includes two-inch throwaway filters.
‡.
ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been
deducted from the total static pressure of the blower.
**.
"Turns Open" refers to the setting of the variable pitch motor sheave, where "0 Turns Open" is fully closed.
††.
W = Watts
Unitary Products Group
1
††
CFM BHP CFM
W
4809 3103 3.33 4594
4584 2961 3.17 4349
4356 2828 3.03 4089
4124 2705 2.90 3815
3889 2592 2.78 -
- - - -
1
††
CFM BHP CFM
W
5565 4369 4.69 5488
5368 4186 4.49 5289
5170 4012 4.30 5076
4971 3846 4.12 4847
4771 3687 3.95 4604
4571 3537 3.79 4346
4370 3395 3.64 4074
4169 3262 3.50 3786
3966 3137 3.36 -
3763 3020 3.24 -
**
TURNS OPEN
2 3
†† ††
BHP CFM
W W
3053 3.27 4360 2478
2912 3.12 4106 2318
2776 2.98 3840 2137
2647 2.84 - -
- - - -
- - - -
**
TURNS OPEN
2 3
†† ††
BHP CFM
W W
4169 4.47 5264 3599
3991 4.28 5049 3437
3807 4.08 4822 3272
3618 3.88 4584 3103
3426 3.67 4335 2933
3233 3.47 4074 2762
3040 3.26 3802 2590
2850 3.06 - -
- - - -
- - - -
* †
4
††
BHP CFM BHP
W
2.66 4090 2093 2.24
2.49 3814 1964 2.11
2.29 - - -
- - - -
- - - -
- - - -
* †
4
††
BHP CFM BHP
W
3.86 4990 3085 3.31
3.69 4763 2937 3.15
3.51 4528 2790 2.99
3.33 4286 2644 2.83
3.15 4035 2499 2.68
2.96 3777 2356 2.53
2.78 - - -
- - - -
- - - -
- - - -
5
††
CFM BHP
W
3812 1798 1.93
- - -
- - -
- - -
- - -
- - -
5
††
CFM BHP
W
4738 2812 3.02
4491 2655 2.85
4235 2497 2.68
3969 2340 2.51
- - -
- - -
- - -
- - -
- - -
- - -
27