Fan Blade Setting Dimensions; R-410A Refrigerant Charge; Removal Of Fan Shroud; Fan Blade Dimensions - Bard Q-TEC Q A4D Series Installation Instructions Manual

Fan Blade Setting Dimensions

The correct fan blade setting for proper air delivery
across the outdoor coil is shown in Figure 29. Refer to
Table 7 for unit specific dimension.
Any service work requiring removal or adjustment in the
fan and/or motor area will require that the dimensions
below be checked and blade adjusted in or out on the
motor shaft accordingly.
FIGURE 29
Fan Blade Setting
TABLE 7

Fan Blade Dimensions

Model
Q36A4
Q42A4
Q48A4
Manual 2100-752C
Page 36 of 41
MIS-983
Dimension
A
.50"

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
.

Removal of Fan Shroud

1. Disconnect all power to the unit before servicing.
2. The unit can be rolled into the room, or the wall
sleeve louver can be removed from outside of the
building to access the condenser coil for cleaning
or to service the outdoor fan.
3. The fan shroud and motor assembly can be
removed from the unit by four (4) screws and the
coil top fill, then the six (6) screws from the shroud
sides. Fan motor must be unplugged from motor
controller. The assembly can now be lifted/slid out
from the condenser section (see Figure 30).
4. The fan assembly or coil can now be serviced.
5. Reverse the steps to reassemble.
FIGURE 30
Fan Shroud Removal
Before removing, unplug
fan motor wire from fan
BEFORE REMOVING, UNPLUG
FAN MOTOR WIRE FROM
motor control.
FAN MOTOR CONTROL
Condenser coil
COND. COIL COVER cover has to be
HAS TO BE REMOVED TO
removed to slide
SLIDE OUT FAN ASSEMBLY
out fan assembly.
Fan assembly (slide
FAN ASSEMBLY
up to remove).
(SLIDE UP TO REMOVE)
MIS-4215
MIS-4215