Table of Contents
Advertisement
FAN BLADE SETTING DIMENSIONS
Any service work requiring removal or adjustment in
the fan and/or motor area will require that the
dimensions in Table 6 be checked and blade adjusted in
or out of the motor shaft accordingly.
FAN BLADE SETTING
M
o
d
l e
5
Q
A
2
4
1
Q
A
3
0
1
Q
A
3
6
1
Q
A
4
2
1
Q
A
4
8
1
Q
A
6
0
1
NOTE: These units are equipped with a variable speed (ECM) indoor motor that automatically adjust itself to
maintain approximately the same rate of indoor air flow in both heating and cooling, dry and wet coil
conditions and at both 230/208 or 460 volts.
1 Maximum ESP (inches WC) shown is with 1" thick disposable filter (reduced by .2 for 2" filter).
2 Rated CFM for ducted applications – required for maximum performance rating. To obtain full CFM on models QA36, QA421, QA481 and
QA601 connect the pink jumper wire (provided) to terminal #G2 and #Y on the low voltage terminal block located in the circuit breaker box.
3 Optional CFM – the unit is shipped from the factory set to operate at the optional CFM level shown. This provides lower operating sound
levels for non-ducted, free discharge applications. This reduces system capacity performance by approximately 2% at the same energy
efficiency.
4 Continuous fan CFM is the total air being circulated during continuous fan mode.
5 Models QA241 – when operating on 2nd stage heating the indoor air will increase to 1000 CFM.
Manual 2100-437E
Page
30 of 31
FIGURE 21
FAN BLADE DIMENSIONS
M
O
D
E
L
Q
A
2
4
1
Q
A
3
0
1
Q
A
3
6
1
Q
A
4
2
1
Q
A
4
8
1
Q
A
6
0
1
INDOOR BLOWER PERFORMANCE
1
R
a
e t
d
E
S
P
M
a
. x
E
S
P
1 .
0
0
5 .
1 .
5
0
8 .
1 .
5
0
8 .
1 .
5
0
8 .
1 .
5
0
8 .
2 .
0
0
5 .
REFRIGERANT CHARGE
The correct system R-22 charge is shown on the unit
rating plate. If correct charge is in doubt, recover the
refrigerant and recharge per the charge on the unit rating
plate. Reference Table 8 for correct pressure data.
TABLE 6
I D
M
E
N
S
O I
N
A
(
N I
C
H
E
) S
7 .
5
0
7 .
5
0
7 .
5
0
7 .
5
0
7 .
5
0
7 .
5
0
TABLE 7
2
3
O
t p
o i
n
l a
R
a
e t
d
C
F
M
C
F
M
8
0
0
1
0
0
0
1
2
0
0
1
0
0
0
1
2
0
0
1
0
0
0
1
4
0
0
1
1
0
0
1
5
5
0
1
2
5
0
4
C
F
M
@
C
o
t n
n i
u
o
u
s
M
a
x
.
E
S
P
C
F
M
8
0
0
7
0
0
1
0
0
0
9
1
0
1
0
0
0
1
1
7
5
1
0
0
0
1
1
7
5
1
1
0
0
1
1
7
5
1
2
5
0
1
4
0
0
Advertisement
Table of Contents
