![background image](http://html1.mh-extra.com/html/unitary-products-group/dahc180/dahc180_installation-instruction_844005001.webp)
GENERAL
These Model DHC units are single package air conditioners
designed for outdoor installation on a rooftop or a slab. These
units can be equipped with factory installed electric heaters for
cooling/heating applications.
The units are completely assembled on rigid, permanently
attached base rails. All piping, refrigerant charge, and electrical
wiring is factory installed and tested. The units require electric
power, duct connections and installation of fixed outdoor air
intake damper (units without economizer or motorized damper
option only) at the point of installation.
The supplemental electric heaters have nickel-chrome
elements and utilize single point power connection.
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.
REFERENCE
Additional information on accessory installation and service
parts on this equipment is available in the following reference
forms:
•
44-320-10 - Barometric Relief Damper Accessory
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:
Standard Register
2101 West Tecumseh Road
Norman, Oklahoma 73069
Toll Free Fax: (877) 379-7920
Toll Free Phone: (877) 319-9675
APPROVALS
Design certified by ETL & CGA as follows:
1. For use as a central cooling only unit with or without supple-
mental electric heat.
2. For outdoor installation only.
3. For installation on combustible material.
SINGLE PACKAGE AIR CONDITIONERS
WITH OR WITHOUT
SUPPLEMENTAL ELECTRIC HEAT
INSTALLATION
INSTRUCTION
Supersedes: 530.22-N5W (1194)
530.22-N5W (500)
MODELS DAHC180 & 240
(9.5 EER)
035-12558
208/230/575 VOLT
MODELS ONLY
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.
208/230/460 VOLT
MODELS ONLY
CAUTION
THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE
WITH THE ENCLOSED INSTALLATION INSTRUCTIONS AND
ANY APPLICABLE LOCAL, STATE, AND NATIONAL CODES
INCLUDING, BUT NOT LIMITED TO, BUILDING, ELECTRICAL,
AND MECHANICAL CODES.
WARNING
INCORRECT INSTALLATION MAY CREATE A CONDITION
WHERE THE OPERATION OF THE PRODUCT COULD CAUSE
PERSONAL INJURY OR PROPERTY DAMAGE