Nordyne Q4 Series - Manual (Page 11)

11
UNIT MAINTENANCE
! WARNING:
To avoid risk of electrical shock, personal
injury, or death, disconnect all electrical
power to the unit before performing any
maintenance or service. The unit may have
more than one electrical supply.
Refrigerant Charging — The Q4 packaged
heat pumps are fully charged at the factory . The
system refrigerant charge can be checked and
adjusted through the service ports provided in
the front panel. Use only gauge lines which have
a “Schrader” depression device present to
actuate the valve. Refrigerant charging must be
done by qualified personnel familiar with safe
and environmentally responsible refrigerant
handling procedures.
! WARNING:
The Q4 Single Packaged Heat Pumps
are shipped fully charged and ready for
installation. When a system is installed
according to these instructions, no
refrigerant charging is required. If
repairs make it necessary for
evacuation and charging, it should only
be done by qualified, trained personnel
thoroughly familiar with this equipment.
Some local codes require licensed
installation/service personnel to
service this type of equipment. Under
no circumstances should the owner
attempt to install and/or service this
equipment. Failure to comply with this
warning could result in property
damage, personal injury, or death.
! CAUTION:
Use care when removing parts from
this unit. Personal injury can result
from sharp metal edges present in all
equipment of sheet metal construction.
Routine Maintenance — Proper maintenance
is important to achieve optimum performance
from the heat pump. The ability to properly
perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not
possess these skills, contact your dealer for
maintenance. Consult your local dealer about
the availability of maintenance contracts. At a
minimum, routine maintenance should include
the following:
1. Inspect and clean or replace air filters at
the beginning of each heating and cooling
season, or more frequently if required.
2. Inspect the condensate drain and outdoor
coil at the beginning of each cooling season.
Remove any debris. Clean the outdoor coil
and louvers as necessary using a mild
detergent and water. Rinse thoroughly
with water.
3. Inspect the electrical connections for
tightness at the beginning of each heating
and cooling season. Service as necessary.
! CAUTION:
The unit should never be operated
without a filter in the return air system.
Replace disposable filters with the same
type and size.