Bard Q24A2DA, Installation Instructions Manual

Page: 40 / 41

Manual 2100-602A
Page 40 of 41
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.
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 Q36A2D, Q42A2D, Q48A2D
& Q60A2D 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 Q24A2D – when operating on 2nd stage heating the indoor air will increase to 1000 CFM.
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.
FIGURE 29
FAN BLADE SETTING
TABLE 6
FAN BLADE DIMENSIONS
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.
TABLE 8
INDOOR BLOWER PERFORMANCE
MODEL
DIMENSION A
(INCHES)
All
Q**A2D
Models
.750
Model
Rated
ESP
j
Max. ESP

Rated CFM

Optional
CFM

Continuous
CFM
CFM @
Max. ESP
Dehum.
CFM
Q24A2D

.10 0.5 800 N/A 800 700 800
Q30A2D .15 0.8 1000 N/A 1000 910 1000
Q36A2D .15 0.8 1200 1000 1000 1175 1000
Q42A2D .15 0.8 1200 1000 1000 1175 1000
Q48A2D .15 0.8 1400 1100 1100 1175 1250
Q60A2D .20 0.5 1550 1250 1100 1400 1250
TABLE 7
SUBCOOLING AT LIQUID LINE
MODEL RATED
CFM
95°F OD
TEMPERATURE
82°F OD
TEMPERATURE
Q24A2D 800 34 - 36 34 - 32
Q30A2D 1000 27 - 29 27 - 25
Q36A2D 1200 31 - 33 31 - 29
Q42A2D 1200 31 - 33 31 - 29
Q48A2D 1400 25 - 27 25 - 23
Q60A2D 1550 21 - 23 21 - 19