GENERAL
This instruction covers the installation, start-up and operation
of these air conditioning units. If the unit includes a heating
option, use this instruction in conjunction with the proper heat-
ing instruction.
• 530.25-N1.1 - Gas Heat Option
• 530.25-N1.9 - Electric Heat Option
These units are completely packaged, factory charged, cooling
only or cooling/heating air conditioners, primarily designed for
rooftop installation.
See Figure 1 for the internal arrangement of the unit compo-
nents. These units have semi-hermetic compressors with
blocked suction unloading for efficient full and part load opera-
tion and can be equipped with an economizer option to provide
cooling with outdoor air when the temperatures and the humid-
ity of the outdoor air permit. The unit can also be equipped with
exhaust air fans for use in conjunction with the economizer
option.
All electrical controls are located on one side of the unit and
are readily accessible for maintenance, adjustment and serv-
ice. All wiring (power and control) and piping can be made thru
the bottom or the side of the unit.
Units are available with bottom duct connections for roof
mounted installations or may be field converted for end duct
connections. Refer to Form 530.25-N1.5.
The following safety precautions apply to gas-fired units:
INSPECTION
As soon as a unit is received, it should be inspected for possible
damage during transit. If damage is evident, the extent of the
damage should be noted on the carrier’s freight bill. A separate
request for inspection by the carrier’s agent should be made in
writing. Refer to Form 50.15-NM for additional information.
REFERENCE
Additional information on the design, installation, operation and
service of this equipment is available in the following reference
forms:
• 55.70-N1 - General Installation
• 55.70-N2 - Pre-start & Post-start Check List
Renewal Parts:
• Refer to the Renewal Parts Manual for complete listing of
replacement parts on this equipment.
All forms referenced in this instruction may be ordered from:
Publications Distribution Center
Unitary Products Group
P.O. Box 1592, York, Pa. 17405
®
SUNLINE SERIES
SINGLE PACKAGE AIR CONDITIONERS
INSTALLATION INSTRUCTION
Supersedes: Nothing
MODELS D*SC360 & 480
035-11820
CAUTION
THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY APPLICABLE
LOCAL, STATE, AND NATIONAL CODES INCLUDING, BUT NOT LIMITED
TO, BUILDING, ELECTRICAL, AND MECHANICAL CODES.
THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE WITH
WARNING
OPERATION OF THE PRODUCT COULD CAUSE PERSONAL INJURY
OR PROPERTY DAMAGE.
INCORRECT INSTALLATION MAY CREATE A CONDITION WHERE THE
Installer should pay particular attention to the words:
NOTE, CAUTION
and
WARNING
. Notes are intended to clarify or make
the installation easier.
Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury
and/or equipment damage may result if installation procedure is not handled properly.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don’t touch electrical switches
3. Extinguish any open flame.
208/230/460
VOLT ONLY
208/230/575
VOLT ONLY
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