51CV/GY
Table of contents
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Carrier
Owner’s Guide
INTERNATIONAL SERIES™
Have a question? Need help?
Call 1-800-CARRIER
DEALER’S NAME.
MODEL
51CV/GY
ADDRESS
TELEPHONE.
MODEL NO._
_______
.PURCHASE DATE.
.SERIAL NO..
TABLE OF CONTENTS
Page Nd (
A Few Words About Your New Unit...................................................................................................... 2
Some Suggestions............................................................................................................................... 2
Electrical Data & Specifications............................................................................................................ 3
Glossary of Control Symbols & Operating Instructions........................................................................4
Economic Energy Saving Tips..............................................................................................................6
Tools Needed for Installation................................................................................................................ 7
Through-the-Wall Installation................................................................................................................ 7
Window Installation...............................................................................................................................9
Trouble Shooting Guide......................................................................................................................12
Unit Warranty......................................................................................................................................14
A FEW WORDS ABOUT YOUR NEW CARRIER UNIT...
Thank you for choosing Carrier! You can feel confi-
Jent in your selection because the same pride in
craftsmanship and engineering knowledge that goes
into Carrier equipment at the Astrodome in Texas, the
famous Sistine Chapel in Rome, the United States
Capitol’s Halls of Congress and thousands of other
installations worldwide has gone into the construction
of your unit.
One of the principal advantages of owning a Carrier
room air conditioner with electric heat is that the unit
heats AND cools, so it can be used year-round! While
SOME SUGGESTIONS...
A) To avoid installation difficulties, read instructions
thoroughly before starting. This publication contains
information pertinent to the installation and operation
of the 51 CV/GY Room Air Conditioner with electric
heat.
B) The 51 CV/GY is normally installed through a wall.
During installation, you will remove the unit’s chassis
from the casing, install the casing first and then
re-insert the chassis. CAUTION: COIL FINS ON
‘CHASSIS ARE SHARP AND CHASSIS IS HEAVY.
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cooling, your new Carrier unit also filters and dehumidifies. In cold weather, the unit gently heats and
circulates air through the room. Carrier’s room air
conditioner with electric heat quietly gives you max
imum year round comfort!
This manual will supply you with all the information
you need for installing, operating and maintaining your
new unit. Take a few moments to read and discover
how to get the most in comfort and economic operation
from your new Carrier room unit!
NOTE: This unit may also be installed in a window. An
additional accessory kit must be ordered separately for
window mounting. Contact your independent Carrier
Dealer, or call 1-800-CARRIER for information.
C) When possible, install unit on a shaded side of the
house or building.
D) Make sure that wall mounting area (or window, if
window-installation is chosen) is structurally sound
enough to support the unit.
BEFORE YOU START
Use the following guide to ensure you have selected
the air conditioning unit that will properly cool the
space you desire This guide is developed for
normal room insulation, number of windows, and
sun exposure, with two people occupying the
conditioned space.
Adjust the room air conditioner capacity found in the
table for the following conditions.
1. Reduce capacity by 10% for heavily shaded
areas.
2 Increase capacity by 10% for very sunny
areas
3 Add 600 Btuh for each additional person
(more than two people)
4. Add 4,000 Btuh if area to be cooled is a
kitchen.
Area To Be Cooled Approximate Nominai
Square Feet
(Length x Width, Ft.)
Cooiing Capacity
Btuh
100-150 5,000
150-250 6,000
250-300 7,000
300-350 8,000
350-400 9,000
400-450 lo'ooo
450-550 12,000
550-700 14,000
700-1,000 18,000
1,000-1,200 21,000
1,200-1,400 23,000
1,400-1,500 24,000
1,500-2,000 30,000
2,000-2,500
34,000
ELECTRICAL DATA...
A) All wiring must comply with local and national elec
trical codes. All wiring must be installed by qualified
and skilled electricians. If you have any questions
regarding the following instructions, contact a qualified
electrician.
B) Check available power supply and resolve any
household wiring problems BEFORE installing and
operating this unit.
C) An individual branch circuit and single wall recepta
cle used only for this appliance, is required. See Table
1 for suggested wire sizes for individual branch circuit.
D) For your safety and protection, this unit is grounded
through the service cord plug when plugged into a
matching wall outlet. If you have any question
whether your wall outlet is grounded or not please
consult a qualified electrician.
E) The wall outlet you select must match the plug on
the unit’s service cord and must be within reach of the
installed unit. Do NOT use adaptors or extension
cords. See Table 2 for further receptacle and fuse
information.
F) Follow fuse specifications indicated on unit’s name
plate. See Table 2. Nameplate is located above unit’s
control panel (refer to diagram in Step 7 of Window
Installation Steps). NOTE: Unit’s model and serial
numbers can be found on the nameplate. Record
numbers on the front of this manual for future
reference.
TABLE 1
SUGGESTED INDIVIDUAL BRANCH CIRCUIT
NAMEPLATE AMPS
5.0 to 12
12.1 to 16
16.1 to 24
AWG—American Wire Gauge
'Based on copper wire at 60°C temperature rating
AWG WIRE SIZE*
14
12
10
CAUTIONS:
Manufacturer strongly recommends using two people
during installation of units.
Coil fins on chassis are sharp and chassis is heavy.
Please keep this manual handy for future reference.
Please note: In the summer; condensation (water)
run-off out the unit’s back is normal during cooling
operation under high humidity weather conditions. In
the winter; the unit is designed with a drain located in
the basepan to open at approximately SOT to minimize
formation of ice in the basepan during heating opera
tion. Unit should be installed where condensation
run-off will not drip on pedestrians or neighboring
properties. In addition it may be necessary to re-direct
drainage flow in the winter to prevent possible build-up
of ice on pedestrian walkways. To re-direct drainage
flow, an Accessory External Drain Kit is available.
Contact your independent Carrier Dealer or call
T800-CARRIER for information.
GLOSSARY OF CONTROL SYMBOLS
OPERATING INSTRUCTIONS
\ ■ X
INDtCATOR LIGHT
Amber indicator light is on when unit is in operation.
Indicator light will NOT be on if unit has cycled off due to
a command from the timer control. In such a case, unit
will only be off for the time period set.
OFF O
O symbol on cooling/heating mode control dial is the
pjnit’s OFF position. When dial is turned to this
'' symbol, unitwill NOT operate, in either manual or
automatic setting.
When leaving your home or office for a period of time
during which you do not wish the unit to cycle on for an
automatic setting, be sure cooling/heating mode dial is
set to OFF position.
If you turn unit off, allow two minutes before turning unit
back on.
^ LOW ^MEDIUM ^ HIGH COOL
Choose the cooling setting you want simply by rotating
dial to appropriate size snowflake symbol.
Use the following as a guide for choosing cooling setting;
Low Cool; Recommended for nighttime use.
Medium Cool: Recommended during mid-morning and
early evening hours when outside temperature is lower.
High Cool: Provides maximum cooling. Recommended
for quick cooling or for extremely hot days. Once room
is cooled, manufacturer suggests switching to a lower
cooling setting.
# LOW HEAT ^ HIGH HEAT
Choose the heat setting you want simply by turning
mode control dial to the appropriate size sun symbol.
Use the following as a guide for choosing heating
setting;
Low Heat; Recommended for mildly chilly days and for
nighttime use.
High Heat: Provides maximum heating. Recommended
for sudden temperature drops and extended heating
needs.
THERMOSTAT +0'
Set dial between -FO (warmer) and -O (cooler) symbols
to obtain desired comfort level. This dial has no effect on
fan speed.
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MANUAL START
Slide switch above timer to MAN setting to operate unit
manually, turning timer off. Set thermostat and cooling/
heating mode dials to desired settings.
FAN ONLY
Set cooling/heating mode control dial to fan symbol.
This will produce air at the low fan speed WITFIOUT
cooling/heating.
When switching to FAN ONLY, allow two minutes before
switching unit back to cooling.
AUTOMATIC OPERATION
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Your Carrier unit has a timer that allows pre-setting of on
and off times. Set unit to turn on and cool or heat your
home or office before you arrive. Set unit to automati
cally turn off after you leave.
NOTE; Timer must be reset after power failures or
interruptions.
SET TIMER TO TIME OF DAY
Rotate timer dial clockwise
until current time of day lines up
with the setting mark on flat
surface behind dial.
—Noon
—Midnight
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