Aspen AEC Series Installation Manual

Certified technicians or those individuals
! WARNING
meeting the requirements specified by
NATE may use this information. Property
and product damage or personal injury hazard may occur
without such background.
All power sources should be disconnect-
! WARNING
ed prior to servicing. Failure to do so may
cause personal injury or property dam-
age.
Product designed and manufactured to
! WARNING
permit installation in accordance with lo-
cal and national building codes. It is the
installer's responsibility to ensure that product is installed
in strict compliance with national and local codes. Manufac-
turer takes no responsibility for damage (personal, product
or property) caused due to installations violating regula-
tions. In absence of local/state codes, refer to National Elec-
tric Code: NFPA 90A & 90B Uniform Mechanical Code.
When this unit is installed in an enclosed
! WARNING
area, such as a garage or utility room with
any Carbon Monoxide producing devices
(i.e. automobile, space heater, water heater etc.) ensure that
the enclosed area is properly ventilated.
Only factory authorized kits and acces-
!
CAUTION
sories should be used when installing or
modifying this unit unless it is so noted in
these instructions. Some localities may require a licensed
installer/service personnel.
Unit is not approved for outdoor installa-
WARNING
!
tions.
The unit is designed for operation with
! WARNING
208/240V, single phase, 60 Hz power sup-
ply. Aspen will not be responsible for
damages caused due to modification of the unit to operate
with alternative power sources.
# 123108
AEC & AAC Series - Ceiling Mount Air Handler
(Electric Heat)
1. Safety Instruction
Potential safety hazards are alerted using the following symbols. The symbol is used in conjunction with terms
that indicate the intensity of the hazard.
`
WARNING
! This symbol indicates a potentially hazardous situation, which if not avoided,
could result in serious injury, property damage, product damage or death.
!
This symbol indicates a potentially hazardous situation, which if not avoided,
CAUTION
may result in moderate injury or property damage.
INSTALLATION GUIDE
2. Introduction
The AEC Series air handlers are versatile ceiling mount air handlers.
These air handlers have the following standard features:
I. Application Versatility
Built in mounting tabs for ceiling or furrdown mounting. Louvered
ceiling access panel has separate frame that attaches to ceiling
joists. Solid access panel available for use with end return installa-
tions. Can be AHRI matched with most brands of air conditioners or
heat pumps.
II. Motor
Constant torque ECM speeds and torques are controlled by software
embedded in the motor to maintain constant torque. Motors are pre-
programmed at the factory.
III. Cabinet
Sturdy, fully insulated galvanized steel cabinet with painted front
panels.
IV. Modular Electric Heat Kits
Heat kits available with either circuit breakers or terminal blocks.
Available in 3, 5, 8, & 10 KW. Models with electric heat include se-
quencers and temperature limit switches for safe, efficient operation.
Modules are easily installed in the field using molex plugs or can be
ordered factory-installed. Controls are accessible from the front of
the unit for easy service.
Electrical connections can be made from the top or left. Disconnect
does not protrude through the wall panel. A fan time delay relay is
standard for increased efficiency.
V. Blower
Direct drive multi-speed blowers circulate air quietly and efficiently.
Motor speeds can be easily selected via motor terminals. Slide-
mounted blowers can be easily removed for service.
VI. Electronic Circuit Board
The electronic circuit board provides 30 second ON/OFF blower time
delays extracting more heat/cool from the coil.
VII. DX Coil
High efficiency rifled copper tubes/enhanced aluminum fins provide
maximum heat transfer. All coils are immersion tested at 500 psi then
nitrogen pressurized and factory sealed for maximum reliability. Coil
mounted Schrader valve allows pre-installation pressure testing.
1