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503,018M
9/93
Supersedes
502,704M
ELECTRIC
UNITS
ECB21 SERIES HEATERS
INSTALLATION
INSTRUCTIONS
FOR ECB21 SERIES
ELECTRIC
HEAT SECTIONS
USED IN B21/CB21/CBH21
APPLICATIONS
I--SHIPPING
AND PACKING LIST
Package 1 of I contains:
1-- Assembled
electric heat section
1- - Filler plate for use with:
ECB21- -5.0- -1P,ECB21- -6.0- -1P,
ECB21- -7.0- -1P,ECB21- -8.0- -1P,
ECB21- -10.0- -1P, ECB21- -20.0- -1P
2-- Wiring diagram stickers
II--SHIPPING
DAMAGE
Check heater forshipping
damage. The receiving party
should contact the last carrier immediately
if any dam-
age is found.
Ill--GENERAL
These instructions are intended as a general guide
and do not supersede
local or national codes in any
way.
Authorities
having jurisdiction
should
be con-
sulted before installation.
IV--REQUIREMENTS
Installation of Lennox blower coil units with electric heat
must conform with standards in National Fire Protection
Association
(NFPA) "Standard
for Installation
of Air
Conditioning
and Ventilating Systems NFPA No. 90A,"
"Standard for the Installation of Residence- -Type Warm
Air Heating and Air Conditioning
Systems NFPA No.
90B," manufacturer's
installation instructions and local
municipal building codes.
This unit is approved for installation clearances to com-
bustible materials as listed on the unit heater installed
nameplate located on the blower coil unit. Accessibility
and service clearances
must take precedence
over
combustible
material clearances.
,& WARNING
V- -APPLICATION
ECB21 series heaters are designed
to provide field
installed electric heat for B21 blower units and CB21
and CBH21 series blower coil units.
_]_rat Ical
_1993
Lennox Industires
Inc.
ure
Page 1
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