Bard PH13242-A Installation Instructions Manual - Service
Manual 2100-468J
Page
24 of 29
Fan blaDe settInGs
Shown in Figure 10 are the correct fan blade setting
dimensions for proper air delivery across the outdoor coil.
Any service work requiring removal or adjustment in the
fan and/or motor area will require that the dimensions be
checked and blade adjusted in or out on the motor shaft
accordingly.
serVIce
serVIce hInts
1. Caution homeowner to maintain clean air filters at all
times. Also, not to needlessly close off supply and
return air registers. This reduces airflow through the
system which shortens equipment service life as well
as increasing operating costs.
2. Switching to heating cycle at 75°F or higher outside
temperature may cause a nuisance trip of the high
pressure switch.
3. The heat pump wall thermostats perform multiple
functions. Be sure that all function switches are
correctly set for the desired operating mode before
trying to diagnose any reported service problems.
4. Check all power fuses or circuit breakers to be sure
that they are the correct rating.
5. Periodic cleaning of the outdoor coil to permit full and
unrestricted airflow circulation is essential.
Pressure serVIce POrts
High and low pressure service ports are installed on
all units so that the system operating pressures can be
observed. Pressure tables can be found in Tables 11 &
12 in this manual covering all models on both cooling
and heating cycles. It is imperative to match the correct
pressure table to the unit by model number.
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 10
Fan blaDe settInG
MD-1417BC
3¼"