York PREDATOR 120, Installation Manual

Page: 27 / 44

035-17311-002-A-0803
Unitary Products Group 27
TABLE 21: 12-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE
* †
ESP
‡
TURNS OPEN
**
0 1 2 3 4 5
CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP
0.4 5078 3630 3.89 4809 3103 3.33 4594 3053 3.27 4360 2478 2.66 4090 2093 2.24 3812 1798 1.93
0.6 4865 3456 3.71 4584 2961 3.17 4349 2912 3.12 4106 2318 2.49 3814 1964 2.11 - - -
0.8 4642 3284 3.52 4356 2828 3.03 4089 2776 2.98 3840 2137 2.29 - - - - - -
1.0 4408 3114 3.34 4124 2705 2.90 3815 2647 2.84 - - - - - - - - -
1.2 4164 2947 3.16 3889 2592 2.78 - - - - - - - - - - - -
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
* †
ESP
‡
TURNS OPEN
**
0 1 2 3 4 5
CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP CFM
W
††
BHP
0.4 5994 5400 5.79 5565 4369 4.69 5488 4169 4.47 5264 3599 3.86 4990 3085 3.31 4738 2812 3.02
0.6
5824 5216 5.59 5368 4186 4.49 5289 3991 4.28 5049 3437 3.69 4763 2937 3.15 4491 2655 2.85
0.8 5641 5022 5.39 5170 4012 4.30 5076 3807 4.08 4822 3272 3.51 4528 2790 2.99 4235 2497 2.68
1.0
5444 4819 5.17 4971 3846 4.12 4847 3618 3.88 4584 3103 3.33 4286 2644 2.83 3969 2340 2.51
1.2 5233 4609 4.94 4771 3687 3.95 4604 3426 3.67 4335 2933 3.15 4035 2499 2.68 - - -
1.4
5009 4394 4.71 4571 3537 3.79 4346 3233 3.47 4074 2762 2.96 3777 2356 2.53 - - -
1.6 4771 4174 4.48 4370 3395 3.64 4074 3040 3.26 3802 2590 2.78 - - - - - -
1.8
4520 3951 4.24 4169 3262 3.50 3786 2850 3.06 - - - - - - - - -
2.0 4255 3728 4.00 3966 3137 3.36 - - - - - - - - - - - -
2.2
3976 3505 3.76 3763 3020 3.24 - - - - - - - - - - - -
*.
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