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Carrier 50LJ008 User Manual

Carrier 50LJ008
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50LJ008-014
Single-Package
Rooftop
Cooling
Units
HEATING
&
COOLING
Installation,
Start-Up
and
Service
Instructions
CONTENTS
Page
SAFETY
CONSIDERATIONS
.
1
INSTALLATION
.
1-14
Step
1
-
Provide
Unit
Support.
2
ROOF
CURB
SLAB
MOUNT
Step
2
Field
Fabricate
Ductwork
.
2
Step
3
Install
External
Trap
for
Condensate
Drain.
2
Step
4
Rig
and
Place
Unit.
2
POSITIONING
Step
5
-
Make
Electrical
Connections
.
2
FIELD
POWER
SUPPLY
FIELD
CONTROL
WIRING
HEAT
ANTICIPATOR
SETTINGS
Step
6
Adjust
Evaporator-Fan
Speed
...
.9
START-UP.
15,16
SERVICE
.
16-18
SAFETY
CONSIDERATIONS
Installation
and
servicing
air
conditioning
equipment
can
be
hazardous
due
to
system
pressure
and
electrical
compo¬
nents.
Only
trained
and
qualified
service
personnel
should
install,
repair
or
service
air
conditioning
equipment.
Untrained
personnel
can
perform
basic
maintenance
func¬
tions
of
cleaning
coils
and
filters
and
replacing
filters.
All
other
operations
should
be
performed
by
trained
service
per¬
sonnel.
When
working
on
air
conditioning
equipment,
ob¬
serve
precautions
in
the
literature,
tags
and
labels
attached
to
the
unit,
and
other
safety
precautions
that
may
apply
Follow
all
safety
codes.
Wear
safety
glasses
and
work
gloves.
Use
quenching
cloth
for
unbrazing
operations.
Have
fire
extinguishers
available
for
all
brazing
operations.
A
WARNING
Before
performing
service
or
maintenance
operations
on
unit,
turn
off
main
power
switch
to
unit.
Electrical
shock
could
cause
personal
injury.
INSTALLATION
Unit
is
shipped
in
the
vertical
discharge
configuration.
To
convert
to
horizontal
discharge
application,
cut
imprint
area
from
front
panels
using
sheet
metal
cutters.
See
Fig.
1
Duct
openings
in
basepan
must
be
covered
by
panels
pro¬
vided
in
the
Accessory
Duct
Cover
Package,
part
no.
50LJ900214
(50LJ008,009)
or
50LJ900217
(50LJ012,014).
Using
screws
provided
in
accessory
package,
install
cov¬
ers
on
duct
openings
in
basepan
of
unit
with
insulation-side
down.
Seals
around
opening
must
be
tight.
IMPORTANT:
An
external
filter
kit
MUST
be
used
or
the
filters
MUST
be
field-installed
outside
the
unit
on
horizontal
applications
with
accessory
economizer
or
two-position
damper.
Otherwise,
the
economizer
or
two-position
damper
must
be
partially
removed
to
access
the
filters.
The
area
of
the
field-installed
fil¬
ters
should
be
equal
to
the
area
of
the
factory-
installed
filters.
Fig.
1
Horizontal
Conversion
Imprint
Dimensions
Manufacturer
reserves
the
right
to
discontinue,
or
change
at
any
time,
specifications
or
designs
without
notice
and
without
incurring
obiigations.
Book
1
4
Tab
1b
6b
PC
111
Catalog
No
565-004
Printed
in
U
S
A
Form
50LJ-4SI
Pg1
11-91
Replaces:
50LJ-2SI

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Carrier 50LJ008 Specifications

General IconGeneral
BrandCarrier
Model50LJ008
CategoryAir Handlers
LanguageEnglish

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