Fan Blade Setting Dimensions; Refrigerant Charge; Figure 31 Fan Blade Setting; Table 7 Fan Blade Dimensions - Bard Q-TEC Q24H2D Series 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
DIMENSION A
MODEL
(INCHES)
All
Q**H2D .750
Models
Rated
Model
ESP
.10
Q24H2D o
Q30H2D .15
Q36H2D .15
Q42H2D .15
Q48H2D .15
Q60H2D .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 Q36H2D, Q42H2D, Q48H2D and
Q60H2D 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 Q24H2D – when operating on 2nd stage heating the indoor air will increase to 1000 CFM.
Manual 2100-603
Page 42 of 44
TABLE 9
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. Reference 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.
TABLE 8
SUBCOOLING AT LIQUID LINE
RATED
MODEL
CFM TEMPERATURE
Q24H2D 800
Q30H2D 1000
Q36H2D 1200
Q42H2D 1200
Q48H2D 1400
Q60H2D 1550
 
Optional Continuous
CFM CFM
N/A 800
N/A 1000
1000 1000
1000 1000
1100 1100
1250 1100
95°F OD 82°F OD
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