CARRIER Air Conditioner/heat Pump(outside Unit) Manual L0604197

User Manual: CARRIER CARRIER Air conditioner/heat pump(outside unit) Manual CARRIER Air conditioner/heat pump(outside unit) Owner's Manual, CARRIER Air conditioner/heat pump(outside unit) installation guides

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OWNER'S
High-Wall

MANUAL
Fan Coil Unit

CONTENTS
Page
GENERAL
.......................................
2,3
OPERATING
MODES ............................
2
REMOTE CONTROL .............................
2
OPERATION
...................................
3-9
REMOTE CONTROL
OPERATION
................
3
INDOOR UNIT DISPLAY .........................
5
EMERGENCY
OPERATION
......................
5
PRESSING THE ON/OFF BUTTON ................
5
SELECTING AN OPERATING MODE ...............
6
SETTING THE TEMPERATURE
SET POINT .......
6
SELECTING
THE DIRECTION
OF LOUVER POSITION ........................
6
SELECTING
THE FAN SPEED ....................
7
USING THE TURBO SETTING
...................
7
USING THE ECONOMICAL
SETTING ............
7
SETTING THE ON TIMER ........................
7
SETTING THE OFF TIMER .......................
8
SETTING THE DAILY TIMER ....................
8
SETTING THE SLEEP TIMER ....................
8
USING THE IONIZER FUNCTION
................
9
REMOTE CONTROL
ADDRESS SELECTION
.....
9

Manufacturer

RESETTING
THE REMOTE CONTROL
...........
OPERATING
CONDITIONS
......................
TIME DELAY ...................................
MINIMUM OPERATION
TIME ...................
HEATING FEATURES ............................
DEFROST OPERATION
..........................
AUTO RECOVERY
..............................
INDOOR UNIT FROST PREVENTION
IN
COOLING AND DEHUMIDIFICATION
MODE ........................................

No. 02-38H40Q01-OM

Printed in U,S.A.

CLEANING,
MAINTENANCE
AND
TROUBLESHOOTING
..........................
9-11
PERIODIC MAINTENANCE
......................
9
CLEANING
THE COIL ...........................
9
AIR FILTERS ...................................
10
IONIZER .......................................
10
INDOOR UNIT FRONT PANEL ..................
10
PREPARING FOR A LONG SHUTDOWN
PERIOD..
10
SYSTEM OPERATION
CHECK LIST .............
10
ENERGY SAVING RECOMMENDATIONS
........
10
TROUBLESHOOTING
...........................
10

reserves the right to discontinue, or change at any time, specifications

Catalog

Page
9
9
9
9
9
9
9

or designs without notice and without incurring obligations.

Form OM38/40-6

Pg 1

2-06

Replaces:

New

GENERAL

AUTO -- In Auto mode, the system will automatically cool or
heat the room according to the user selected set point.
If the room temperature is 2° F lower than the set point, the
system will operate in Heating mode. If the room temperature
is 2 ° F higher than the set point, the system will operate in
Cooling mode.

The high wall fan coil unit provides quiet, maximum
comfoll. In addition to cooling trod/or heating, the high wall
fan coil unit matched with an outdoor condensing unit will
filter and dehumidify the air in the room to provide maximum
comfort. See Fig. 1.

HEATING
room tfi]_

IMPORTANT:
The high wall fan coil unit should be
installed by authorized personnel only. using approved
tubing and accessories. If technical assistance, service
or lepair is needed,
contact
the installer
or call
1-800-227-7437.

COOLING --In
filters room _dl:

Modes --

The high wall fan coil unit has 5

Fan only
Auto (heat pump models only)
Heating (heat pump models only)
Cooling
Dehumidification

the system cools, dries and

Remote

FAN ONLYIn Fan Only mode, the system filters
circulates room air without changing room air temperature.

mode,

NOTE: Two settings ale avtfilable for use with selected modes.
The Turbo setting provides maximum capacity. The Economical setting provides quiet, energy saving operation. Cooling
and Heating modes can be operated in either the Turbo or
the Economical setting. The Dehumidification
mode can be
operated in the Turbo setting, and the Auto mode can be
operated in the Economical setting. See the Using the Turbo
Setting or Using the Economic_fl Setting sections for more
information.

operating modes:
•
•
•
•
•

Cooling

mode, the system heats and filters

DEHUMIDIFICATIONIn Dehumidification
mode, the
system &ies, filters and slightly cools room tfir temperature.
This mode does not take the place of a dehumidifiel:

The high wall fan coil unit can be set up and operated from
the remote control (provided). See Fig. 2. If the remote is
misplaced, the system can be operated from the "Auto" setting
on the unit.

Operating

-- In Heating

Control (Fig. 2-6)-The remote
control
transmits commands to set up and operate the system. The
controller has a window display panel that shows the current
system status. The controller can be secured to a surface when
used with the mounting rack provided. See Fig. 2.

and

®®

®
LEGEND
A
B
1
2
3
4
5
6

/
/

//////////////////////////////,
Fig. 1 -- Indoor and Outdoor

Unit Components

---------

Outdoor Unit
Indoor Unit
Automatic Swinging Louver
Air Filters
Remote Control Signal Receiver
Unit Operating Status Indicators
Interconnecting Tubing
Condensate Drain

( A((.o))
_//,b

%(g_o

Fig.2 --

High Wall Fan Coil Unit and Remote Control

Handle tile controller with care and avoid getting the controller wet. Damage to the device may result.

unit to malfunction. Batteries should only be changed after
turning the unit off. The average battery life during normal
use is approximately
one year If the air conditioner does not
operate normally after replacing the batteries, refit the batteries
and press the reset button again after 5 seconds.
To install batteries:

fiom a distance of up to 16 ft as long as there are not any
IMPORTANT:
The remote control can operate tile unit
obstructions.

1. Remove battery compartment cover by pushing
up and removing it from the remote.
polarity

markings

NOTE: Replace batteries whenever "Ix_w battery"
appears on remote control display panel. See Fig. 4.

indicator

The remote control can perform the following functions:
• Turn the system ON and OFF
• Select operating mode
• Adjust room air temperature
set point and fan speed
• Set time periods for automatic system operation
BATTERY INSTALLATION
-- Two AAA
1.5-v alkaline
batteries (included) are required for operation of the remote
control. See Fig. 3 for batte U location.
After new batteries have been inserted, press the leset
button with a paper clip or the tip of a pen. Do not use old
batteries or batteries of different types, as this may cause the

Fig. 3 -- Location of Batteries on Remote Control

Insert batteries being sure to follow
inside battery compartment.

Replace battery compartment

the tab

covel:

DISPLAY SCREEN -- There me five operating mode indicators that appear on the remote control display screen. See Fig. 4.

OPERATION
Remote

Control Operation-The remote
control
has 3 buttons (see Fig. 5) used for operating and controlling the
system:
•

-- changes

operating

mode

•

(!)

-- turns the system on or off.

-- adjust temperature

NOTE: When transmitting
a command
from the remote
control to the unit, be sure to point the controller toward the
right side of the unit. See Fig. 6. The unit will confirm receipt
of a command by sounding an audible beep.

onds, the remote control will return to its previous
IMPORTANT:
If no changes zue made within 10 secsetting.

I
[

SETTINGTHETIMEON THEREMOTECONTROL
(Cunent
TimeAdjusting
C andReset
Buttons)
-- Plesscurrenttimeadjusting
buttonC toadjust
thecurrent
time.Press
the resetbutton
withthetipofapenorapaperclip
if theremotecontrolis notoperating
properly
or afterleplacing
the
batteries.
trol ON or OFK
pressC for at least
5seconds.
2. Thecurrent
hourflashes.Press
eitherA or
1. Withtheremote
con- _
horn:PressC again
to moveto set the
minutes.

FAN SPEED -- To select the Fan mode and change the Fan
Speed, follow the steps below:
1. Press the Mode button to select the Fan mode.
2.

Press the Fan Speed button to select desired fan speed.

NOTE: If unit is operating in Dehumidification
mode the fan
will only operate in low speed and cannot be changed.
TEMPERATURE
SETTINGSThe temperature
set point
can be easily changed by pointing the controller toward the unit
and pressing
the increase/decrease
temperature
set point
buttons until the desired temperatme appears on screen.
AIRFLOW DIRECTIONThe louveLs can be manually
operated by pressing the Louver button to change airflow
direction. Refer to Table 1 for louver positions.

)

3. Once
g tothecurrent
setthecurrent
time
is set,press
C toconfirmit.

2
4

I
I

15
1.

Operating

mode (from left to right)

• Fan only
• Heating

(heat pump models only)

• Automatic

(heat pump models only)

14
7.

Low Battery indicator

Louver

Fan speed

position

10.

Turbo setting

• Cooling

11.

Economical

• Dehumidification

12.

ON timer selected

13.

Night timer active

14.

DAILY timer active (Everyday)

15.

ON timer and OFF timer or current

16.

OFF timer selected

17.

Ionizer active

Signal transmission

Temperature

Address

symbol

set point selected

selected

Temperature

Unit configuration

unit of measurement

(°C or °F)

Fig. 4-

setting

Remote Control Display Icons

time

Display

Mode selection

ON/OFF

button

Increase

temperature

Decrease

Fan speed selection

Turbo setting

Economical

Louver control button (Flap)

ON timer button

DALLY timer button (Everyday)

Cancel timer button / Current
button

OFF timer button

Sleep timer button (night)

Ionizer button

Reset button

M
N

Fig. 5 -- Operating Mode Indicators on

Remote

readout
button

temperature

button
button
button

button
setting button

time

Control

active. Tile Orange light is illuminated during timer mode. The
Green light is illuminated during operation.

Emergency
_ __=_:

)))

BEEP

9
Fig. 6 -- Proper Positioning of Remote Control

Operation
-- When the remote control is
lost or damaged or the batteries are exhausted, the EMER.
button can be used to run the unit.
Press the EMER. button once briefly when the system is off.
To stop emergency operation, push the EMER. button again
or operate the remote control.
The set conditions of emergency operation are as follows:
• Preset set point: 77 F
• Fan speed: AUTO
• Timer mode: Disabled
• Discharge air direction: Pre-set position based on operation in "Cool" or "Heat" mode.

Table 1 -- Louver Positions
SYMBOL ON
REMOTE CONTROL

DESCRIPTION
Louver position will be set automatically.
Louver will be set to the preset position
according to the operation mode.

air conditioner is not in operation, the remote
Pressing
thewill
On/Off
-- day
When
control
readout
display Button
the time of
only.the
Press the On/Off button to stm-t the unit.
The unit will start in the last operating mode.

The louver can be set to one of
/_.

_
/

....
_1

six different airflow directions.
The louver will continuously swing
up and down. The "swing" setting will
provide optimal, even air distribution
in the room.

Indoor Unit Display (Fig. 7) -- The indoor unit display has three LED indicators at the lower right hand portion of
the unit. Tile Blue light is illuminated when the ionizer is

Press button On/Off to stop the unit.
All indicator lights on the unit will go out, and file remote
control will display only the current time.
If the unit does not stop, turn the control on (by pressing the
On/Off button) and repeat the operation.
NOTE: If the On/Off button is pressed too soon after a stop,
the compressor
will not start for 3 to 5 minutes due to the
inherent protection against frequent complessor cycling. The
unit will only emit an audible beep when file signals am
received correctly.

Fig. 7 --

Unit Display

Selecting
Operating
Mode--mode.Use the
/_ button toan
select
the unit operating

Repeatedly
able modes.

press the Operating

Mode button to select avail-

The chosen mode is shown as follows,
acknowledge signal receipt with a beep.
Indicated

while the unit will

symbol:

Fan Only

-,O_-

Heating

Automatic

Cooling

the

EMER. button

and Switch

Panel

The display will show the channel

Press the mode
(tu) screen.

Use the increase or decrease set point arrows
the temperature display setting.

Press the louver button to transmit the temperature
play setting to configure the remote.

_/_/_1

Temperature

to change

air distribution.
repeatedly

to choose one of the

In the Cooling, Dehumidification
and Fan Only mode, the
louver will swing in the cooling range. In the Heating mode,
the louver will swing in the heating range. See Fig. 8.

Set Point --

Pressing the increase temperature set point A
g buttons will raise or lower the temperature.

and decrease

NOTE: Always use the remote control to adjust the louver
position, otherwise abnormal operation may occur If the
louver is manually adjusted out of its range, turn the unit off
and then on again.

The unit will confirm signal receipt with a beep, and the
value of the set temperature
on the display will change
accordingly.
The temperature
1 degree intervals.

can be set between

dis-

tiondirection of
canLouver
be adjusted
Selectingqn_eairflow
the Direction
Posi-to
optimize

Room

setting (CH).

button once to go to the Temperature

Press the louver button _
louver positions. See Table 1.

Dehumidification

Setting

(T) Blue indicator light
@ Orange indicator light
@ Green indicator light
@ Switch panel

63 F and 90 F at

NOTE: In Cooling mode, if the temperature selected is higher
than the room temperature the unit will not start; the same
applies for the Heating mode, if the selected temperature is
lower than the room temperature.
The remote control can be set to display the temperature in
degrees Fahrenheit or degrees Celsius. To change the temperature setting, complete the following steps while the unit is off:
1. Press the decrease set point button and the louver button
simultaneously for 5 seconds.

Cooling
".9_ Heating

Fig. 8 -- Cooling

and Heating Louver Position

LEFT AND RIGHT CONTROL
-- To adjust the direction of
the discharge air to the left or right, adjust the vellical guide
vane with the handle after opening the louvel: See Fig. 9.
NOTE:
• Do not set tile louver to position
_ for long periods of
time, because this position minimizes
air circulation
resulting in uneven room temperature.
• Do not adjust the louver manually during SWING operation because it may damage the air swing mechanism.
• For maximum cooling or heating capacity, please louver
to position
_.
/

Using the Economical Setting -- For quiet,
energy saving operation in Cooling, Heating find Auto
modes, press the Economical Setting button E On the
display, the Economicfd Setting icon E will appem:

Economical Cooling mode:
The indoor tim and compressor operate
fit a minimum speed for maximum energy savings.

(z
--Irl

°c

r_u
, I-I I'-I
_'!,J!,J

AM
•

can
be selected
pressing
Selecting
the byFan
Speedtile-- fanTilespeed
fan button
speed

•_ i--i oC

SYMBOL

DESCRIPTION

(_:_)

Low speed.

2. Economical Heating mode:
The indoor fan and compressor operate
fit a minimum speed for maximum energy savings.

.nil

((_:_))

Medium speed.

(((v_)))

High speed.

C4 ;)

Automatic (fan will automatically switch to the
appropriate speed for optimum comfort)

Using

the Turbo

Setting

-- For

capacity while in Cooling, Dehumidification

•

--II

E'n

maximum
and Heat-

¢@>))

ing modes, press the Turbo Setting button t._. On the
display, the Turbo Setting icon _
will appem:
1. Turbo Cooling
mode performs
the
turbo cooling operation until room temperature reaches 63 F or 20 minutes after pressing the Turbo Setting button.
While in Turbo Cooling mode, indoor
fan speed is high and compressor speed
is over-rating speed to obtain maximum
cooling capacity.

,nn
AM

_'LILI

\
2.

-'6"

((@_))
t4a
m

1,_

, f-I I-I

I'__,LI I_l

Turbo Heating
mode performs
the
turbo heating operation
until room
temperature reaches 90 F or 20 minutes
after pressing the turbo setting button.
While in Turbo Heating mode, the
indoor fan and compressor operates in
high speed in order to obtain maximum
heating capacity.

"-I,rl n

L •I._H_l

Turbo Dehumidification mode performs the dehumidification operation
until room temperature is under 63 F or
3 hours after pressing the turbo setting
button. While in Turbo Dehumidification mode, indoor fan speed operates in
low speed in order to remove humidity
more effectively.

l°C
E _,,_

Auto mode:

Unit operates in Economical Cooling
mode or Economical
Heating mode
depending on the room temperature
find set point.

_F'uu

During the Economical setting, the room temperature
louver position can be set by using the remote control.
speed cannot be changed while in the Economical setting.
Press /_,

or E to cancel the economical

setting.

•

--i i--i oc

,Nn

1. ON TIMER button []
Press the [] , even if the unit is off.
The relevant icon and time figure will
start to flash.
If 10 seconds have elapsed and no
button is pressed, the remote control
returns to the previous setting without
making any changes.

Setting the ON time with A

When the unit is ON, the only possible selection is the
start-up time. The Operating mode and set point remain
file same as the currant operation.
To select the stmt-up time when the unit is off. use

First select the hours and confirm by pressing
During the turbo setting, room temperature and fan speed
cannot be changed using the remote controller
Press /_, _
or E to cancel turbo setting mode.

and
Fan

-------]Setting the ON Timer

3. Economicffl

select the minutes using either

To finish setting file time, press []
3.

Choose the unit Operating

[].

Then

or g.
again.

mode.

To select the operating mode, use the /_ button. Once
the operating mode has been selected, press [].
The icon of the selected mode will stop flashing.
4.

Select the desired set point temperature.
To select the desired temperature,

use either

or g.

Push [] to confirm the selection. The set point numbers
will stop flashing.

Fig. 9 -- Using the Vertical Guide Vane

Fanspeed:
Choose
filefanspeed,
using'@.
been completed, press button []
fan speed icon will stop flashing.

When the selection has
for confirmation.

The

Ix)uver positioning:

For everyday operation to stml at 5:30 RM. and stop at
10:30 RM. complete the following steps:
1. Set the ON timer for 5:30 RM.
2.

Set the OFF timer for 10:30 RM.

Press the DAILY timer button [].

Use _,
to select desired louver position. Press [] for
confirmation. Now all icons are fixed on display. To cancel selections made up to this point, push C; to cancel _dl

(U.__U

of the selected options once the timer has been set,
push [] and then C. The ON Timer settings ale now
complete.

Setting
select
a time
thefor Off
the system
Timer to--turnSet
off.
the OffTimer to
Press the Off Timer button.

•

The Off timer icon and numbers
time selection flash.

--inoc

E)_(

((c÷>))
_

I.._• WU

for a

NOTE: This function can be set even if
the remote control is OFF.

_,_

:l.nn

Setting the Off time (buttons

CANCELLING THE ON, OFF AND DAILY TIMER
SETTINGS -- To cancel the ON or OFF timer setting, press
the following buttons in order:
1. Button []

and

--I)--I °C

To set the Off time, press either button
from hour to minute,

press

5:30

Press []
setting.

Setting

again

to confirm

the DALLY Timer

Push

file but-

In this way the ON and OFF timer settings will be repeated
every &ty.
To deactivate the daily function, press [] again.
EXAMPLE
1: Combining the ON, OFF and DAILY
features.

F,M

_I • _1 L.I

This procedme pennits setting the remaining
time until the Sleep mode is entered.
1. "1 :hr" will be displayed

timer

--II

ii ,o.o
m

in.-in
m

I°C
/l I

l:hr
[]

2. P]ess
The display will show the
following settings in sequence: 1 :hr, 2:hr,
3:hr, 4:hr, 5:hr, 6:hr, 7:hi, 8:hr and 9:he

3:hr

IU'3U

!!_!" ZJU

--I:,_

_!Un

together with the

l_--n

1. Set the OFF timer for 10:30 RM. while the system
operating.
2. Set the ON timer for 7:30 A.M.

unit operating

icon.

EXAMPLE 2: To stop operation at 10:30 RM. and start again
at 7:30 A.M. with the same operating mode, complete the following steps:

Setting
the Sleep
Presson.this
to set the SLEEP
timer Timer-with the system
Thebutton
icon
will appear on the display.

To start the unit at 5:30 RM. and stop at 10:30 RM. for one
day only, complete the following steps:
1. Set the ON timer for 5:30 RM.
2. Set the OFF timer for 10:30 RM.
Select desired operating mode ( M

NOTE: Every&_y operation will remain
active until one of the two timers (ON
or OFF) is active.

Off time

ton _
when the ON or OFF timer is active. The
icon will appem on display.

;

To deactivate the Daily timer function, press [].

A orV.
To move

or []

2. Button C.

V).

[]

ri]

Once the remaining operating hours have been selected
with either button ,,A or --V, press the [] button to
confirm.

4. When the SLEEP timer is set, the unit will control the set
temperature to avoid overcooling or oveflleating during
operation. The set temperature will change as in Fig. 10.

Time Delay --

If unit operation is started aller the power
is turned off. there will be a 3-minute time delay until the
compressor turns on.

+I°F

When heating operation starts,
delayed due to a warm-up period.
SET
TEMP.
,

110

150 TIME

hot air delivery

may

Minimum
Operation
Time -In norm;d operation,
there is a minimum operation time of 5 to 7 minutes between
the compressor turning on and turning back off.

(MIN.)

Heating Features

--ff
the unit starts in Heating mode,
there may be a preheating period before the unit is ready to
deliver warm all:

SETTIME
(Cooling only or Dehumidification

mode)

Defrost Operation

-- In heating mode, if the outdoor
coil is fi_sted, the indoor fan and outdoor fan will turn off
while system removes the frost on the outdoor coil.

°F

SET
TEMP.

The system will automatically
revert to normal
when frost is removed from the outdoor unit.

operation

Auto Recovery

-- If the power fails while the unit is
operating, the unit memorizes the operating condition, and it
will start operation automatically when the power is restored.

I
i

30'

90I

150
i

TIME

(MIN.)

SETTIME

low ambient temperature, frost may appear on the indoor coil.
If the indoor coil temperature is near 32 E the compressor's
speed is reduced or stopped to protect the unit from frost.

(Heating mode)

Fig. 10 -- Set Temperature
_.

Indoor Unit Frost Prevention
in Cooling
and
Dehumidification
Mode--If
the unit operates at a

Levels

CLEANING,
MAINTENANCE
AND TROUBLESHOOTING

Using
the Ionizer
-- The
ionizer
helps to eliminate
odors Function
in the conditioned
space.
1. Press _function.

.NN
_" 2.uu_
•

)

2. Press _b
function.

to activate

the Ionizer

again to turn off Ionizer

Remote Control Address Selection -- If two indoor units are in the same room, one remote control can be
linked to one indoor unit, and the other remote control to the
other indoor unit, or both indoor units can be controlled with a
single remote control.
For more information, refer to the installation instructions.

Resetting

-- If the remote control is not functioning properly it can be reset by pressing the
reset button with a paper clip or tip of a pen.

Operating

the Remote

Control

Conditions-

for unit operation
MODE

Temperature ranges

suitable

Operating the system with dirty air filters may damage the
indoor unit and could cause reduced cooling performance.
intermittent system operation, fi_st build-up on indoor coil
or blown fuses.

Periodic

Maintenance-

Periodic maintenance

recommended to ensure proper operation of the unit. Recommended maintenance
intervals may vary depending on the
installation
environment,
e.g., dusty zones, etc. Refer to
Table 2.

_u'eas follows.

Cool

INDOOR
(°F)
59-90

OUTDOOR
(°F)
59-110

Heat

Max. 81

14- 75

59-90

59-110

Dehumidification

To avoid the possibility of electric shock, always turn off
power to the system before performing any cleaning or
maintenance to the system. Turn off the outdoor disconnect
switch located near outdoor unit. Be sure to disconnect
indoor unit if on a separate switch.

If the unit operates above 59 to 90 F maximum temperature
conditions for a long period of time, system diagnostics may
modify the system operation to prevent &mmge to the system.

The coil fins are very sharp. Use caution when cleaning
the coil fins to prevent unit dmnage and to avoid personal
injury.
Cleaning the Coil -- Clean the coil at the beginning of
each cooling season, or when necessary. Use a vacuum cleaner
or a long-bristle brush to avoid dmnage to the coil fins.

Air Filters-

Remove

and clean

the

air filters

once

Preparing

month.

for

a Long

NOTE: If air filters show signs of excessive wear or are torn,
they must be replaced. Contact your local de;der for replacement filters.

Turn main power supply off and remove
remote control.

1. Open fiont panel on unit.
2. Pull filters down to remove.

System

Operation

lined in the following
operation:

Vacuum filters.

Clean with w_um water

Shake filter to remove excess water and dry thoroughly.

Replace filter by sliding filter behind fiont grille until filter snaps in place.

•
•
•
•
•
•

When cleaning the front panel, do not use water hotter than
105 F and do not pour water onto file fan coil.

•

Do not use abrasive or petroleum
may dmnage the front panel.

•

based cleaners

as they

•

Ionizer -- Clean the ionizer with a brush every four months.

•

1. Unscrew and lift the ionizer covel:

•

Close the cover and tighten the sclew.

Saving

ing recommenckttions
free system:

Disconnect the unit from the main power supply prior to
cleaning or performing maintenance on the ionizel: Serious
pel,sonal injury could result.

Brush the needles on the base of the ionizel:

Period

•
•
•

Indoor Unit Front Panel

-- To clean the front panel on
the indoor unit, wipe the outside with a soft, chy cloth. If necessary, a mild liquid detergent can be applied and wiped off with
a dry cloth.

batteries from the

Check List-The items outlist will help to assure proper system

Recommendations

-- _e

will add greater efficiency

INDOOR UNIT
Clean Air Filter*
Clean Drain Pipe
Change Remote Control Batteries
Clean Ionizer
OUTDOOR UNIT
Clean Outdoor Coil from Outside
Clean Outdoor Coil from Inside1"
Blow Air Over Electric Parts1"
Check Electric Connection Tightening1.
Clean Fan Wheel1"
Check Fan Tightening1.
Clean Drain Pans']"

2 --

Select a comfortable
thermostat
setting and leave it at
chosen setting. Avoid continually
raising and lowering
the setting.
Keep unit filter clean. Frequent cleaning may be necessary depending on indoor air quality.
Use drapes, curtains or shades to keep direct sunlight
from heating room on very hot days.
Do not obstruct front grille air intake on front panel.
Turn on air conditioning
before indoor air becomes too
uncomfortable.

Troubleshooting -- Refer to Tables 3 and 4 before con-

Periodic

Maintenance

EVERY MONTH
•

EVERY 4 MONTHS

EVERY YEAR

•
EVERY MONTH

*Increase frequency in dusty zones.
1-Maintenance to be carried out by qualified service personnel.

follow-

to the duct-

tacting your loc;d dealel:

Table

Be sure unit is connected directly to electrical supply.
Replace both remote control batteries at the same time
when the Low Battery indicator appears.
Point the remote control toward the unit display panel
when transmitting
a command.
Keep doors and windows closed while unit is operating.
Close air vents in unoccupied rooms to save electricity.
Contact an authorized service representative
if a problem
arises that cannot be easily resolved.
Do not perform cleaning or maintenance
activities while
unit is on.
Keep display panel on unit away from dilect sunlight and
heat as this may interfere with remote control transmissions.
Do not block air intakes and outlets on the indoor or outdoor units.

Energy

Shutdown

Clean the filters and reposition them in the unit. Operate the
unit in Fan only mode for 12 hours to dly all internal parts.

•
EVERY 4 MONTHS
•

•
EVERY YEAR
•
•
•
•
•
•

Refer to the Installation

Manual.

Table 3 -- Troubleshooting
PROBLEM

Unit/System

POSSIBLE CAUSE

Does Not Work

Cooling

is Not Working

Properly

Heating

is Not Working

Properly

Unit Stops During Operation

SOLUTION

• The circuit breaker has tripped or a fuse has
blown,
• Power failure.
• Green or Orange LED is flashing on and off,
which could indicate an indoor or outdoor unit
fault.
• Voltage is too low.
• The filter is blocked with dust.
• Temperature is not set properly.
• A window or door is open.
• The outdoor unit is obstructed.
• The fan speed is too low.
• The operation mode is in Fan or Auto instead of
Cool.

Reset the circuit breaker or replace the fuse with the
specified replacement fuse.
Restart operation when the power is restored.
Call your service representative.

Call your service representative.
Clean the air filter.
Check the temperature and reset if necessary.
Close the window or door.
Remove the obstruction.
Change the fan speed selection.
Change the operating mode to Cool or reset the unit.

• The filter is blocked with dust.

• Clean the air filter.

• Temperature is set too low.
• A window or door is open.
• The outdoor unit is obstructed.

• Check the temperature and reset if necessary.
• Close the window or door.
• Remove the obstruction.

• The Off timer is not operating correctly.
• Green or Orange LED is flashing on and off,
which could indicate an indoor or outdoor unit
fault.

• Restart the operating mode.
• Call your service representative.

LEGEND
LED

Light Emitting Diode

Table 4 -- Unit Protection Devices
TYPE OF PROTECTION
Indoor

Coil High Temperature

Indoor

Coil Freeze Up Protection

Discharge
Frequent

Protection

Gas High Temperature
Compressor

Cycling

EFFECT OF PROTECTION

Protection

Dealer's

MODE

Compressor

speed slow down or off

Heating and Auto mode at high
outdoor temperatures

Compressor

speed slow down or off

Cooling, Dehumidification and Auto mode
at low outdoor temperatures

Compressor

speed slow down or off

Cooling, Heating, Dehumidification and
Auto mode outdoor temperatures

Compressor

time delay

During heating operation the unit may defrost to remove
ice that might collect on the outdoor unit. During defrost,
the indoor fan will automatically
stop, the louver will be
fixed at a horizont_d position and can not be changed until
the defrost cycle is completed.
Forcing tile louver to
change its position during defiost could result in equipment
&image.

Fill out the following

OPERATING

to save time on any future service calls.

Name

Address
Telephone

Purchase

Indoor Model #

Outdoor Model #

Indoor Serial #

Outdoor Serial #

Date

All

Copyright 2006 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications
Catalog

No. 02-38H40QO1-OM

Printed in U.S.A.

or designs without notice and without incurring obligations.

Form 0M38/40-6

Pg 12

2-06

Replaces:

New

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CARRIER Air Conditioner/heat Pump(outside Unit) Manual L0604197

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