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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 5 be checked and blade adjusted in
or out of the motor shaft accordingly.
FIGURE 27
FAN BLADE SETTING
Model
Rated ESP
Q24A2
Q30A2
Q36A2
Q42A2
Q48A2
Q60A2
NOTE: These units are equipped with a variable speed (ECM) indoor motor that automatically adjust itself to maintain
approximately the same rate of indoor airflow in both heating and cooling, dry and wet coil conditions and at
both 230/208 or 460 volts.
j Maximum ESP (inches WC) shown is with 1" thick disposable filter (reduced by .2 for 2" filter).
Rated CFM for ducted applications – required for maximum performance rating. To obtain full CFM on models Q36A2, Q42A2, Q48A2 and
Q60A2 connect the pink jumper wire (provided) to terminal #G2 and #Y on the low voltage terminal block located in the circuit breaker box.
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.
Continuous fan CFM is the total air being circulated during continuous fan mode.
Model Q24A2 – when operating on 2nd stage heating the indoor air will increase to 1000 CFM.
INDOOR BLOWER PERFORMANCE
j
Max. ESP
Rated CFM
.10
0.5
.15
0.8
.15
0.8
.15
0.8
.15
0.8
.20
0.5
R-410A
REFRIGERANT CHARGE
This unit was charged at the factory with the quantity of
refrigerant listed on the serial plate. AHRI capacity and
efficiency ratings were determined by testing with this
refrigerant charge quantity.
The following pressure tables show nominal pressures
for the units. Since many installation specific situations
can affect the pressure readings, this information should
only be used by certified technicians as a guide for
evaluating proper system performance. They shall not
be used to adjust charge. If charge is in doubt, reclaim,
evacuate and recharge the unit to the serial plate charge.
FAN BLADE DIMENSIONS
MODEL
All
Q**A2
Models
TABLE 6
Optional
CFM
800
1000
1200
1000
1200
1000
1400
1100
1550
1250
TABLE 5
DIMENSION A
(INCHES)
.750
CFM @
Continuous
Max. ESP
CFM
800
700
1000
910
1000
1175
1000
1175
1100
1175
1250
1400
Manual
Page
2100-600
37 of 38
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