Nordyne 460/575 Volt Single Package Convertible Air Conditioner User Manual And Installation Instructions page 11

on the front panel. Use only gauge lines which
have a "Schrader" depression device present
to actuate the valve. Draw a vacuum on gauge
lines to remove air before attaching them to the
service ports on the unit. Refrigerant charging
must be done by qualified personnel familiar with
safe and environmentally responsible refrigerant
handling procedures.
! WARNING:
Packaged Air Conditioners 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.
Model Speed
High
3 Ton
Medium
Low
High
4 Ton
Medium
Low
High
5 Ton
Medium
Low
External Static Pressure Drop - inches water column
0.1 0.2 0.3
1600 1510 1410
1410 1330 1250
1130 1070 1000
2000 1930 1850
1760 1700 1630
1410 1360 1310
2200 2140 2070
1940 1890 1830
1560 1510 1460
- Speed set at factory
Table 1. Blower Curves
Routine Maintenance — Proper maintenance
is important to achieve optimum performance
from the air conditioner. 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.
4. Motors having oil tubes should be
lubricated annually by adding 10 drops
of SAE 20 non detergent oil. Do not
over oil or lubricate any motor that does
not have oil tubes.
! CAUTION:
The unit should never be operated
without a filter in the return air system.
Replace disposable filters with the same
type and size.
0.4 0.5 0.6
1310 1200 1070
1150 1050 940
930 850 760
1770 1690 1600
1560 1490 1410
1250 1200 1130
2000 1930 1850
1760 1700 1630
1410 1360 1310
0.7 0.8
930 760
820 670
650 530
1510 1410
1330 1250
1070 1000
1770 1690
1560 1490
1250 1200
11