Fan Blade Setting Dimensions; R-410A Refrigerant Charge; Figure 31 Fan Blade Setting; Table 7 Fan Blade Dimensions - Bard Q-TEC Q24H3DA Installation Instructions Manual

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 7 be checked and blade adjusted in or out of
the motor shaft accordingly.
FIGURE 31
Fan Blade Setting
TABLE 7
Fan Blade Dimensions
MODEL
All
Q**H3D
Models
Rated
Model
ESP
.10
Q24H3D o
Q30H3D .15
Q36H3D .15
Q43H3D .15
Q48H3D .15
Q60H3D .20
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.
 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 Q36H3D, Q43H3D, Q48H3D
and Q60H3D 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.
 Indoor airflow during periods of high humidity when system is operating under control of optional humidistat for maximum humidity reduction.
o Model Q24H3D – when operating on 2nd stage heating the indoor air will increase to 1000 CFM.
Manual 2100-653
Page 42 of 44
DIMENSION A
(INCHES)
.750
Indoor Blower Performance
 
Max. ESP Rated CFM
0.5 800
0.8 1000
0.8 1200
0.8 1200
0.8 1400
0.5 1550

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 (see Table 8).
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.
Subcooling at Liquid Line
RATED
MODEL
CFM
Q24H3D 800
Q30H3D 1000
Q36H3D 1200
Q43H3D 1200
Q48H3D 1400
Q60H3D 1550
TABLE 9
 
Optional Continuous
CFM CFM
N/A 800
N/A 1000
1000 1000
1000 1000
1100 1100
1250 1100
TABLE 8
95°F OD 82°F OD
TEMPERATURE TEMPERATURE
23 - 25 22 - 24
23 - 25 23 - 25
19 - 21 17 - 19
16 - 18 15 - 17
19 - 21 19 - 21
22 - 24 22 - 24
CFM @ Dehum.
Max. ESP CFM
700 800
910 1000
1175 1000
1175 1000
1175 1250
1400 1250