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Carrier 48TC User's Information Manual

Single-package rooftop unit (rtu) heating/cooling units with puron (r410a) refrigerant

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User's Information Manual
NOTE: Read the entire instruction manual before starting
the installation.
NOTE TO INSTALLER:
This manual
should
be left with the equipment
owner.
TABLE
OF CONTENTS
PAGE
SAFETY
CONSIDERATIONS
....................
i
TO LIGHT
UNIT
..............................
2
TO SttUT
UNIT OFF
...........................
4
ROUTINE
MAINTENANCE
AND CARE
FOR THE
EQUIPMENT
OWNER
..........................
5
BEFORE
YOU CALL FOR SERVICE
.............
7
REGULAR
DEALER
MAINTENANCE
............
7
SAFETY
CONSIDERATIONS
hnproper
installation,
adjustment,
alteration,
service,
maintenance,
or use can cause
fire,
electrical
shock,
or
other
conditions
which
may
cause
personal
injury
or
property
damage.
Consult
a qualified
installer,
service
agency
or your
distributor
or branch
for information
or
assistance.
The
qualified
installer
or agency
must
use
factory-authorized
kits
or accessories
when
modifying
this product.
Refer to the individual
instructions
packaged
with the kits or accessories
when installing.
Follow
all safety codes
and wear safety glasses.
Have fire
extinguisher
available.
Read these
instructions
thoroughly
and follow
all warnings
or cautions
attached
to the unit.
Consult
local
and state building
codes
and
Sheet
Metal
and Air
Conditioning
National
Association
(SMACNA)
for special
installation
requirements.
Recognize
safety
information.
This
is the
safety-alert
symbol
_.
When
you see this symbol
on the unit or in
instructions
and
manuals,
be
alert
to the potential
for
personal
injury.
Understand
the signal
words
DANGER,
WARNING,
and CAUTION.
These
words
are used with
the safety-alert
symbol.
DANGER
identifies
the most
serious hazards,
which will result in severe
personal
injury
or death.
WARNING
signifies
hazards,
which could result
in personal
injury
or death.
CAUTION
is used to identify
unsafe
practices,
which
may
result
in minor
personal
injury or product
and property
damage.
NOTE
is used to
highlight
suggestions
which
will
result
in
enhanced
installation,
reliability,
or operation.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Do not store or use gasoline
or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
FIRE, EXPLOSION
HAZARD
Failure
to follow this warning
could result in personal
injury or death.
What to do if you smell gas:
• Leave the building.
• Do not try to light any appliance.
• Do not touch any electrical
switch;
do not use any
phone in your building.
• hnmediately
call your gas supplier from a neighbor's
phone.
Follow the gas supplier's
instructions.
• If you cannot
reach
your gas supplier,
call the fire
department.
Installation
and
service
must
be
performed
by
a
qualified
installer,
service
agency or the gas supplier.
ELECTRICAL
SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Before performing
maintenance,
be sure main power
switch to unit is turned off and lockout tag is installed.
There may be more than one power switch.

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Summary of Contents for Carrier 48TC

  • Page 1 User's Information Manual NOTE: Read the entire instruction manual before starting injury or product and property damage. NOTE is used to the installation. highlight suggestions which will result enhanced installation, reliability, or operation. NOTE TO INSTALLER: This manual should be left with the equipment owner.
  • Page 2: To Light Unit

    ELECTRICAL OPERATION HAZARD CUT HAZARD Failure to follow this warning could result in personal Failure to follow this caution may result in personal injury, death or personal injury. injury. Do not use this equipment if any part has been under When removing access...
  • Page 3 Step 3 -- Turn off the electrical supply to the unit by Step 5 -- Move the RTU gas valve on/off switch to the OFF switching the RTU main disconnect to OFE Then, ensure position and wait 5 minutes. See Fig. 5 for location of RTU personal safety by installing...
  • Page 4: To Shut Unit Off

    Step 10 -- To start unit, set room thermostat/unit controller Step 1 -- Set room thermostat/unit controller heat setpoint heat setpoint to slightly above room temperature. to the lowest temperature setting and set the SYSTEM switch to OFF. induced-draft combustion air fan will start.
  • Page 5 Step 5-- Move theRTU gas valve on/off s witch totheOFF position. See Fig.5forlocation o fRTU gas valve. Two Stage Single Stage FIRE AND EQUIPMENT DAMAGE HAZARD RTU gas valve RTU gas valve Failure to follow this warning could result in personal injury and damage to equipment.
  • Page 6 If you have difficulty in locating your air filter or if you have questions concerning proper filter maintenance, contact your dealer for instructions. When replacing your EQUIPMENT DAMAGE HAZARD unit filters, always use the same size and type of filter that was originally supplied by the installer...
  • Page 7: In Case Of Trouble

    NOTE:Before proceeding withthenext c heck, turnOFF Evaporator Condenser Coils the electrical p owersupplyto the unit. Remove the control access door. Cleaning of the coils should be done by qualified service personnel. Contact dealer the required annual ( ) During theheating s eason, check thecontrol switch on maintenance.
  • Page 8 Catalog No: OG-48TC580J-02 Copyright 2008 CAC / BDP • 7310 W. Morris St. • indianapolis, IN 46231 Printed in U.SA Edition Date: 05/08 Manufacturer reserves the right to change_ at any time_ specifications and designs without notice and without obligations. Replaces: OG-48TC580J-01...

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