Air Handler Heat Coil Installation Instructions

Page 1
Shipping and Packing List
Package 1 of 1 contains:
1 – Assembled electric heat section
1 – Circuit breaker cover
Check equipment for shipping damage. If you nd any
damage, immediately contact the last carrier.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
General Information
These instructions are intended to be a general guide and
do not supersede any local or national codes. Installation
must conform with the local building codes and with the
latest editions of the National Electric Code.
Be sure to disconnect all power to the unit while you install
and service this equipment. Use proper tools and protec-
tive equipment during installation and service.
Installation of air handler with or without optional electric
heat must conform with standards in the National Fire Pro-
tection Association (NFPA) “Standard for Installation of Air
Conditioning and Ventilation Systems NFPA No. 90A,”
and “Standard for Installation of Resident Type Warm Air
Heating and Air Conditioning System, No. 90B,” the man-
ufacturer’s installation instructions, and local municipal
building codes.
Electric Heat Sections
The electric heat sections provide eld-installed electric
heat for air handler units.
The ECBA25 electric heat section is available with 5, 7.5,
10, 12.5, 15 and 20 KW elements.
Refer to the applicable indoor unit product specications
bulletin (EHB) for heat section applications.
Heat Section Installation
WARNING
Before installing or servicing unit, be sure
ALL power to the unit is OFF. More than one
disconnect switch may be present. Electrical
shock can cause personal injury or death!
Before installing the unit, check information on the unit
rating plate to ensure that the unit meets the job specica-
tion, proper electrical power is available, and that proper
duct clearances are maintained.
NOTE – If installing heat sections at the same time as the
air handler unit, install the electric heat section in the air
handler unit before setting the air handler unit and attach-
ing the plenum.
1 - Shut off all power to the air handler unit. More than
one disconnect may be required.
2 - Remove air handler access panel and keep the six
screws to reattach access panel after installing heat
elements.
3 - Disconnect any existing eld supply wires and pull
them out of the air handler. Disconnect and remove
wiring harness and fastener (see gure 1). If not
removed, these items will prevent the heat section’s
base from resting properly in the compartment.
4 - Remove the no-heat seal plate in the air handler
frame (see gure 1).
NOTE – If a small heater is installed in the unit, the in-
staller will need to remove the no-heat plate and break it
apart at the perforations and reinstall the two pieces so
the smaller heater can be installed into the unit.
INSTALLATION
INSTRUCTIONS
ELECTRIC HEAT SECTIONS
507848-01 (111003162)
05/2018
ECBA25 Electric Heat Sections
Used with Air Handler Units
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE