Daikin DFC Series, Installation Instructions Manual

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construction and remodeling. Various commercial and
industrial processes may also be sources of chlorine/
fluorine compounds.
•
To avoid possible illness or death of the building occupants,
do NOT locate outside air intake device (economizer,
manual fresh air intake, motorized fresh air intake) too
close to an exhaust outlet, gas vent termination, or
plumbing vent outlet. For specific distances required,
consult local codes or in their absence, with the latest
edition of the National Fuel Gas Code latest edition of the
National Fuel Gas Code NFPA54/ANSI Z223.1 and National
Standard of Canada CAN/CSA B149 Installation Codes.
•
Allow minimum clearances from the enclosure for fire
protection, proper operation, and service access (see
unit clearances). These clearances must be permanently
maintained.
•
If used, do not allow the economizer/manual fresh air
damper/ motorized fresh air damper to become blocked
by snow or debris. In some climates or locations, it may
be necessary to elevate the unit to avoid these problems.
For proper operation and condensate drainage, the unit
must be mounted level
•
When the unit is heating, the temperature of the return
air entering the unit must be between 50° F and 100° F.
Ground Level Installations Only:
•
When the unit is installed on the ground adjacent to the
building, a level concrete (or equal) base is recommended.
Prepare a base that is 3” larger than the package unit
footprint and a minimum of 3” thick.
•
The base should also be located where no runoff of water
from higher ground can collect in the unit.
Roof top Installations Only:
•
To avoid possible property damage or personal injury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required
by local codes. Consult a structural engineer to determine
the weight capabilities of the roof.
•
The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
•
To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
•
As indicated on the unit data plate, a minimum clearance of
36” to any combustible material is required on the furnace
access side of the unit. All combustible materials must be
kept out of this area.
•
This 36” clearance must also be maintained to insure
proper combustion air and flue gas flow. The combustion
air intake and furnace flue discharge must not be blocked
for any reason, including blockage by snow.
•
Adequate clearances from the unit to any adjacent
public walkways, adjacent buildings, building openings
or openable windows must be maintained in accordance
with national codes. National Fuel Gas Code NFPA54/ANSI
Z223.1 and National Standard of Canada CAN/CSA B149
Installation Codes.
Unit Precautions
• Do not stand or walk on the unit.
• Do not drill holes anywhere in panels or in the base frame
of the unit (except where indicated). Unit access panels
provide structural support.
• Do not remove any access panels until unit has been
installed on roof curb or field supplied structure.
• Do not roll unit across finished roof without prior approval
of owner or architect.
• Do not skid or slide on any surface as this may damage
unit base. The unit must be stored on a flat, level surface.
Protect the condenser coil because it is easily damaged.
Roof Curb Installations Only:
B efore installing this unit...
IMPORTANT NOTE: This unit has been equipped with a shipping
brace under the compressor section that MUST BE REMOVED
before installing the unit on a roof curb.
Please follow the instructions below to remove brace.
CAUTION
When unit is suspended, boards and shipping brace will
drop when screws are removed. To prevent personal injury,
STAND CLEAR. Remove fork hole brackets, boards and
shipping brace from bottom of unit before placing units
onto curb.
1. Remove wooden struts and shipping brace per installation
instructions. The struts are located in the fork holes and
are used to protect the unit from damage while lifting with
forks. The shipping brace is located under the unit (under
compressor). Also remove the fork hole brackets as shown
in the following figure.
2. Locate and remove the end brackets as shown in the
following figure.