York YAFT026, Installation Manual

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27
Blower Performance Data cont.
AFFINITY & AFFINITY ADVANCED SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
PSC BLOWER MOTOR BODY
HIGH LOW MEDIUM
BL
O
W
ER
SP
EE
D
W
IR
E
Setting Blower Speed - PSC
CAUTION: Disconnect all power before performing
this operation.
Unit with Standard PSC Motor
Model Motor
Spd
Blower
Size
Motor
HP
Airflow (cfm) at External Static Pressure (in. wg)
0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00
012
H
6 x 8 1/10
480 450 440 420 410 380 360 340 330 310 300 - - - - -
MH* 440 410 400 380 370 350 330 310 300 280 270 - - - - -
ML 395 370 360 340 330 310 290 280 270 250 240 - - - - -
L 325 310 300 280 270 250 240 230 220 210 200 - - - - -
7/15/22
Factory settings are in Bold
Air flow values are with dry coil and standard filter
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]).
Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12in. wg. and 500 fpm by
0.16 in. wg.