2
Important Safety Instructions
The following symbols and labels are used throughout this manual
to indicate immediate or potential safety hazards. It is the owner’s
and installer’s responsibility to read and comply with all safety in-
formation and instructions accompanying these symbols. Failure
to heed safety information increases the risk of personal injury,
property damage, and/or product damage.
HIGH VOLTAGE!
Failure to do so may cause property damage,
personal injury or death.
Disconnect ALL power before servicing.
Multiple power sources may be present.
Installation and repair of this unit should be performed
by individuals meeting (at a minimum) the
requirements of an “entry level technician” as specified
by the Air-Conditioning, Heating and Refrigeration
Institute (AHRI). Attempting to install or repair this unit
without such background may result in product
damage, personal injury or death.
ONLY
This product is factory-shipped for use with 208-
230/3/60 electrical power supply. However, the
airhandler can be reconfigured to operate with a
460/3/60 power supply, provided the conversion noted
in section “Conversion to 460 Electrical Supply”
section of this manual is performed.
To avoid property damage, personal injury or death
due to electrical shock, this unit MUST have an
electrical ground. The
electrical ground circuit may consist of an
appropriately sized electrical wire connecting the
ground lug in the unit control box to the building
electrical service panel.
Other methods of grounding are permitted if performed
in accordance with the National Electric Code
(NEC)/American National Standards Institute
(ANSI)/National Fire Protection Association (NFPA) 70
and local/state codes. In Canada, electrical grounding
is to be in accordance with the Canadian Electric Code
(CSA) C22.1.
uninterrupted, unbroken
This airhandler is designed for Upflow or Horizontal-
Left applications. DO NOT INSTALL IN THE
DOWNFLOW OR HORIZONTAL-RIGHT ORIENTATION.
When installing or servicing this equipment, safety
clothing, including hand and eye protection, is
strongly recommended. If installing in an area that has
special safety requirements (hard hats, etc.), observe
these requirements.
Do not connect to or use any device that is not design-
certified by Daikin for use with this unit. Serious
property damage, personal injury, reduced unit
performance and/or hazardous conditions may result
from the use of such non-approved devices.
To prevent the risk of property damage, personal
injury, or death, do not store combustible materials or
use gasoline or other flammable liquids or vapors in
the vicinity of this unit.
CARBON MONOXIDE POISONING HAZARD
-
Special Warning for Installation of Furnace or Air Handling Units in
Enclosed Areas such as Garages, Utility Rooms or Parking Areas
Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as unventilated garages, utility rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulting from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.
This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device continues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
throughout the structure if the furnace or air handler is operating in any
mode.
CO can cause serious illness including permanent brain damage or death.
B10259-216
