Carrier 40GXQ User manual

Owner's Manual
TABLE OF CONTENTS
PAGE
SAFETY PRECAUTIONS ..................................................................................... 2
GENERAL ................................................................................................. 2
PART NAMES .............................................................................................. 3
UNIT DISPLAY PANELS .................................................................................... 4
REMOTE CONTROL ........................................................................................ 5
REMOTE CONTROL FUNCTIONS .......................................................................... 6 - 8
CLEANING, MAINTENANCE AND TROUBLESHOOTING .................................................... 9 - 10
NOTE TO EQUIPMENT OWNER:
Please read this Owner's Int_rmation Manual carefully bet_re installing and using this appliance
and keep this manual t_r future reference.
For your convenience, please record the model and serial numbers of your new equipment in the
spaces provided. This intk_rmation, along with the installation data and dealer contact int_rmation,
will be helpful should your system require maintenance or service.
UNIT INFORMATION
Model #
Serial #
INSTALLATION INFORMATION
Date Installed
DEALERSHIP CONTACT INFORMATION
Company Name:
Address:
Phone Number:
Technician Name:

SAFETY PRECAUTIONS
PERSONAL INJURY, DEATH, OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal iniury,
death, or property damage.
Read and follow all instructions and warnings, including
labels shipped with or attached to unit before operating your
new air conditioner.
Any time you see this symbol AX in manuals, instructions and on
the unit, be aware of the potential for personal injury. There are
three levels of precaution:
DANGER identifies the most serious hazards which will result in
severe personal injury or death.
WARNING signifies hazards that could result in personal injury or
death.
CAUTION is used to identify unsafe practices which would 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.
PERSONAL INJURY, DEATH AND /OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock,
or other conditions which may cause personal injury or
property damage.
Consult a qualified installer, service agency, your distributor
or branch for information or assistance. The qualified installer
or service agency must use factory-authorized kits or
accessories when modifying this product.
GENERAL
The high wall fan coil unit provides quiet, maximum comfort. In
addition to cooling and/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.
IMPORTANT: The high wall fan coil unit should be installed by
authorized personnel only; using approved tubing and accessories.
If technical assistance, service or repair is needed, contact the
installer or call 1-800-227-7437.
The high wall fan coil unit can be set up and operated from the
remote control (provided). If the remote is misplaced, the system
can be operated from the "Auto" setting on the unit.
Operating Modes:
The high wall fan coil unit has five operating modes.
• Fan only
• Auto (heat pump models only)
• Heating (heat pump models only)
• Cooling
• Dehumidification (DRY)
Fan Only
In Fan Only mode, the system filters and circulates room air
without changing room air temperature.
Auto
In Auto mode, the system will automatically cool or heat the room
according to the user-selected set point.
Heating
In Heating mode, the system heats and filters room air.
Cooling
In Cooling mode, the system cools, dries and filters room air.
Dehumidification (DRY)
In Dehumidification mode, the system dries, filters and slightly
cools room air temperature. Use of this mode does not take the
place of adehumidifier.
Remote Control
The remote control transmits commands to set up and operate the
system. The control has a window display panel that shows the
current system status. The control can be secured to a surface
when used with the mounting bracket provided.

PART NAMES
@ Indoor Unit C) 1@
@Outdoor Unit
1@
®
@
®
@
@
®
@
@
@
©
-(9
Front Panel Frame
Display Panel
Front Panel
Air Filter
Horizontal Airflow Louver
Manual Adjustable Vertical Airflow Louver
Remote Control
Room Temperature Sensor
Inter-Connecting Tubing
Control and Power Wiring to Indoor Unit
Service Valves
Indoor/Outdoor Unit
A08294
®--
©--
(9--
®
@
@
®
@
Remote Control
Remote Control Display
ON/OFF Button
MODE Button
Setpoint Temperature UP (+) and DOWN (-) Buttons
FAN Speed Butlon
(_ Horizontal Louver SWING Button
7(7(7_ SLEEP Mode Button
(_ Clock Button
9(9(9_ Timer ON But[on
I_ Timer OFF Button
(1@ Timer ON/Timer OFF Adjustment But[ons
Cancel Timer Buttons
A08273

UNIT DISPLAY PANELS
NOTE: The display panel on the indoor unit can be turned on or offusing the remote control. Press the SWING button twice to
turn the display on and off. Some of the functions will appear on the display panel, on the remote control, or both.
On the Unit:
"_ "_ C3 as
0 0 as Z r_ _ r_
-- -- Z k_
C3 C3 as >- " k0 k-J
uJ u_ Z -- u_
Z Z o_ -- __as
z Q
0 _"
uJ I-_
-r 0
k.J i
r_
The temperature readout will be replaced by an error code if there is a malfunction.
A08297
Remote Control Display ©
m
@ TRANSMISSION INDICATOR: Illunfinates when remote
control transnfits signals to the indoor unit.
(_) .ON/OFF INDICATOR: This symbol appears when the unit
is turned on by the remote control, and disappear when the
unit is turned off.
(_) FAN SPEED DISPLAY: Indicates the set fan speed. AUTO
is displayed when unit is running in AUTO mode.
C) MODE DISPLAY: Indicates the current operation mode
"AUTO", "COOL", "DRY", "FAN ONLY", or "HEAT"
AUTO AUTO Mode
COOL Mode
& 0R Mode
_ FAN Mode
HEAT Mode
A08295
(_) SLEEP DISPLAY: Indicates unit is running in SLEEP mode.
(_) TEMPERATURE DISPLAY: Temperature setting from
61°F (16°C) to 86°F (30°C) will be displayed. If FAN mode
is selected, there will be no temperature displayed.
C) SWING DISPLAY: Indicates that louvers are moving
continuously for better air distribution.
(_) CLOCK DISPLAY: Indicates the current time (0 to 24
hours).
(_) TIMER DISPLAY: Indicates that time ON, time OFF, or
both is set.
A08296
NOTE: Symbols shown in this manual are for the purpose of demonstration. During actual operation, only the relevant symbols are
displayed.

REMOTE CONTROL
•i i i I I I I I i i I I I i i
, u u u
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
Handle the control with care and avoid getting the control wet.
IMPORTANT: The remote control can operate the unit from a
distance of up to 25 ft. (7.6 m) as long as there are no obstructions.
This is one way communication only (from remote control to fan
coil).
The remote control can perform the following basic functions:
• Turn the system ON and OFF
• Select operating mode
• Adjust room air temperature set point and fan speed
• Adjust airflow direction
Refer to the Remote Control Function section for detailed
description of all the capabilities of the remote control.
Battery Installation
Two AAA 1.5 v alkaline batteries (included) are required for
operation of the remote control.
To install or replace batteries :
1. Slide the back cover off the control to open the battery com-
partment.
2. Remove old batteries if you are replacing the batteries.
3. Insert batteries. Follow the polarity markings inside the
battery compartment.
4. Replace battery compartment cover.
©
©
A08298
4. Replace the batteries when there is no audible beep from the
indoor unit or if the Transmission Indicator fails to light.
Set the Clock
Before you start operating the air conditioner, set the clock on the
remote control as outlined below. The clock panel on the remote
controller will display the time regardless of whether the air
conditioner is in use or not.
Initial Setting of the Clock:
After batteries are inserted in the remote control, the clock panel
will display "12:00" AM.
1. Push the CLOCK button once
•"AM" will flash
2. Push the "TIME +" or "TIME -" button. Each time you
press the button, the time moves forward or backward by
one minute depending on which button you press.
If you push the temperature button continuously, the time
adjusts in increments of 10 minutes.
3. When the right time is achieved, press the CLOCK button
once to set the time. The "AM" will stop flashing.
4. To readjust the Clock, Press the CLOCK button on the re-
mote. The "AM" or "PM" will flash. Repeat steps 1
through 3.
NOTE: Note: The time of the CLOCK must be set before the
AUTO-TIMER function will operate.
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Static electricity or other factors (voltage fluctuations) can
cause the remote control clock to reset. If your remote
control is reset (the time of "12:00" flashing), set the clock
before starting the unit.
A08299
NOTE:
1. When replacing batteries, do not use old batteries or a different
type battery. This may cause the remote control to malfunction.
2. If the remote is not going to be used for several weeks, remove
the batteries. Otherwise battery leakage may damage the remote
control.
3. The average battery life under normal use is about 6 months.

Remote Control Operation - Quick Start
NOTE: When transmitting a command from the remote control to
the unit, be sure to point the control toward the LED display on the
front panel of the unit. The unit will confirm receipt of a command
by sounding an audible beep.
1. Turn the unit on by pushing the ON/OFF button.
2. Select the desired mode by pushing the mode button.
r AUTO ----_ COOL _ DRY -------._FAN-............_HEAT--
ONLY ]
A08301
NOTE: Cool only units have no heat mode.
3. Select the temperature set point by pointing the control to-
ward the unit and pressing the "TEMP +" or "TEMP -"
temperature set point buttons until the desired temperature
appears on screen.
4. Select the desired fan speed by pressing the FAN SPEED
button to select desired fan speed.
NOTE: If unit is operating in Dry mode, low fan speed will be
displayed and the fan speed cannot be changed.
5. Set the airflow direction. When the unit is turned on, the
louvers default to the cooling or heating position. The user
can adjust the default louver position by pushing the
"SWING" button. The louver will start to move. At this
point, the user can have the louver moving continuously or
stopped when the desired position is achieved by pushing
the "SWING" button.
Emergency Operation
If the remote control is lost, damaged, or the batteries are
exhausted, the AUTO button on the unit can be used to run the
unit.
Open the front cover panel and press the AUTO button once
briefly when the system is off.
To stop emergency operation, push the AUTO button once. The
emergency operation can also be stopped by pushing the
"ON/OFF", "CLOCK", "T-OFF", or "T-ON" twice.
I
AUTO button "_'>"
A08300
REMOTE CONTROL FUNCTIONS
The remote control is the interface between the user and the
high-wall systems. Commands are entered by the user to control
the system. Any command that has been entered with the remote
control will remain in the memory until it is changed by the user
or the batteries are replaced.
NOTE: When entering commands, point the remote control in
the direction of the LED display on the front panel. The
will appear for a short period of time on the remote control
when the command is entered. The unit will only emit an
audible beep when the signals are received correctly.
On/Off Button
A08302
When the air conditioner is not in operation, the remote control
will display the last set point and time.
• Press the On/Off button to start the unit.
- The unit will start in the last operating mode and set
point. The "OPER" indicator will appear. The "RUN"
indicator on the display panel turns green.
• Press button On/Off to stop the unit.
- The "RUN" indicator light on the display panel will turn
red and the remote control will display the setpoint and
time. "OPER" will disappear.
NOTE: If the On/Off button is pressed too soon after a stop, the
compressor will not start for 3 minutes due to the inherent
protection against frequent compressor cycling.
Selecting an Operating Mode
Use the Mode button to select one of the available modes.
The following occurs when the AUTO button is pushed:
• 77 °F (25 ° C) will be displayed on display panel.
• Unit will run in FAN ONLY mode if return air temperat-
ure is between 68°F (20°C) and 77°F (25°C).
• Unit will run in HEATING if return air temperature is
less than 68°F,
• Unit will run in COOLING if return air temperature is
greater than 77 °F (25 °C).
• Fan speed will be set to AUTO
• SWING will be on.
r AUTO _ COOL _ DRY ----_FAN--...._HEAT --
ONLY ]
A08808/A08801
The selected mode will be displayed on the remote control and the
appropriate light will illuminate on the display panel. When the
unit is in AUTO, 77°F (25°C) will show on the display panel.
There is no icon for "FAN ONLY" on the display panel.

Setting the Room Temperature Set Point
Pressing the "TEMP +" and "TEMP -" buttons will raise or lower
the temperature.
The unit will confirm signal receipt with a beep and the value of
the set temperature on the display, on the remote control, and on
the front panel, will change accordingly.
The temperature can be set between 61°F (16°C) and 86°F
(30°C).
NOTE: In Cooling mode, if the temperate 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.
Selecting the Fan Speed
pushed, the louvers will not start moving right away. This is
due to the fact that the fan will not start running until the coil
temperature is warm enough to prevent discomfort to the user
by blowing cold air.
Selecting Vertical Direction of the Louver
The vertical louvers can be adjusted manually to direct the airflow
to achieve the optimal comfort in the space.
A07543
Timer Function
TIMER ON (to start the unit) and TIMER OFF (to stop the unit)
can be used separately or together. The clock on the remote control
must be set before using this flmction.
Timer ON only
A08304
The fan speed can be selected by pressing the "FAN" button.
NOTE: When the unit is on, the fan will run continuously in
cooling or heating. When in heating, there might be situations
where the fan will slow down or shut off to prevent cold blow.
Selecting the Horizontal Direction Louver Position
When the unit is turned on, the louvers default to the cooling or
heating position.
If the louver position is not providing adequate comfort due to
room layout or where people are gathered, the user has two
options:
1. Have the horizontal louvers move continuously. This is ac-
complished by pushing the "SWING" button. When this
button is pushed, the "SWING" icon will appear on the re-
mote control and the louvers will operate in a preset range
as shown in the figure below.
ufT&£
COOLING
HEATING
2, If a stationary position other than the default position is pre-
ferred, push the "SWING" button once and allow the louver
to move to the desired position then push the "SWING"
button again,
NOTE: Always use the remote control to adjust the louver
position otherwise, abnormal operation may occur. If the
louver is manually adjusted out if its range, turn the unit off
and then on again.
Sometimes, in the heating mode, when the "SWING" button is
Timer ON Indictor [ {
,J u_uu I
A08305
This function will allow the unit to start automatically at the set
time. The TIMER ON can be set while the unit is on or off.
To set the TIMER ON flmction, perform the following:
1. Push the "T-ON" button once.
2. The timer indicator will appear on the remote control with
"ON" flashing.
3. Push the "TIME -" or "TIME +" until the desired on time
is reached.
NOTE: Pressing the "TIME -" or "TIME +" will decrease or
increase the time in 1 minute increments.
Pressing the "TIME -" or "TIME +" continuously will
decrease or increase the time in 10 minute increments.
4. Push the "T-ON" again. The "ON" icon will stop blinking
and the time at which the unit will start is set.
The "T-ON" time will be stored in memory indefinitely until it is
cancelled by the user by pushing the "CANCEL" button or the
remote control batteries are replaced,
If the unit is running and the "T-ON" set time is reached, the unit
will continue operating normally,
NOTE: When the unit is shut offby the user using the
"ON/OFF" button, and if the "T-ON" is set, the following will
be displayed on the remote control.
- Set Point
- Time
-"TIME ON" icon
On the display panel, the operation light will turn red.
When the "T-ON" is reached, the display on the remote does
not change, and the unit is running as indicated by the
operation light on the front cover turning green. To get display
on the remote, push the "ON/OFF" button once.

Timer OFF only
_r:_72_ ¸¸¸ 7::_
l_m_ OFF Indicator
A08306
This function will allow the unit to stop automatically at the set
time. The timer can be set while the unit is on or while it is off.
To set the "TIMER OFF" function, perform the following:
1. Push the "T-OFF" button once.
2. The "TIMER" indicator will appear on the remote control
with "OFF" flashing.
3. Push the "TIME -" or "TIME +" button until the desired
ON time is reached.
NOTE: Pressing the "TIME -" or "TIME +" will decrease or
increase the time in 1 minute increments.
Pressing the "TIME -" or "TIME +" continuously, will
decrease or increase the time in 10 minute increments.
4. Push the "T-OFF" button again, the "OFF" icon will stop
blinking and the time at which the unit will turn off is set.
The "T-OFF" time will be stored in memory indefinitely until is
is cancelled by pushing the the "CANCEL" button or the batteries
are replaced in the remote control.
If the unit is running and the "T-OFF" set time is reached, the unit
will turn off and the operation indicator light on the front panel will
turn red. The display on the remote control will remain the same
as when the unit was running. To turn the unit on again, push the
"ON/OFF" button twice. The operation indicator light on the front
panel will turn green.
Timer ON and Timer OFF
ii}i 7:
OO F
@OFF P_ U_UO
A08308
Use both functions as described in "TIMER ON" and "TIMER
OFF" sections to program the unit to turn on and shut off at
specified times. Times will be stored in memory until cancelled
by user or the remote control batteries are replaced.
Sleep Mode
This mode is used to conserve energy and can be used when the
unit is in the COOL, HEAT or AUTO mode only.
Cool Mode
- Push the SLEEP button. The SLEEP display will appear on
the remote control.
@
{
Sleep Mode I_n
A08309
- After 1 hour the set point will be raised by 1.8°F (1°C).
- After another hour, the set point will be raised by another
1.8°F (1°C) and the fan will run in low speed.
- The SLEEP mode will be cancelled when the SLEEP button
is pushed again.
Heat Mode
- Same as cooling mode but set points will be lowered by
1.8°F (1°C) and the HEAT icon will disappear from the
display panel.
Time Delay
If the On/Off button is pressed too soon after a stop, the
compressor will not start for 3 minutes due to the inherent
protection against frequent compressor cycling. The unit will only
emit an audible beep when the signals are received correctly.
Heating Features
If the unit is in the heating mode, there will be a delay when the
fan starts. The fan will start only after the coil is warmed up to
prevent cold blow.
Defrost Operation
In heating mode, if the outdoor coil is frosted, the indoor fan and
outdoor fan will turn off while system removes the frost on the
outdoor coil. "HI" will be displayed on the display panel on the
front cover of the unit.
The system will automatically revert to normal operation when
frost is removed from the outdoor unit, and "HI" will disappear.
Auto Start
If the power fails while the unit is operating, the unit stores the
operating condition, and it will start operation automatically under
those conditions when the power is restored.

CLEANING, MAINTENANCE AND TROUBLESHOOTING
ELECTRICALSHOCK HAZARD
Failure to follow this caution may result in personal injury
or death.
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
EQUIPMENT DAMAGE/OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper unit operation.
Operating the system with dirty air filters may damage the
indoor unit and could cause reduced cooling performance,
intermittent system operation, frost build-up on indoor coil
or blown fuses.
Periodic Maintenance
Periodic maintenance is 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 1.
CUT HAZARD
Failure to follow this caution may result in personal iniury.
The coil fins are very sharp. Use caution when cleaning.
Always wear safety protection.
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
damage to the coil fins.
Air Filters
Remove and clean the air filters once a month.
NOTE: If air filters show signs of excessive wear or are torn, they
must be replaced. Contact your local dealer for replacement filters.
1. Open front panel on unit.
2. Pull filters down to remove.
3. Vacuum filters.
4. Clean with warm water.
5. Shake filter to remove excess water and dry thoroughly.
6. Replace filter by sliding into rack until filter snaps in place.
7. Close front panel on unit.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
When cleaning the front panel, do not use water hotter than
105°F (40.56°C) and do not pour water onto the fan coil.
Do not use abrasive or petroleum based cleaners as they
may damage the front panel.
Indoor Unit Front Panel
To clean the front panel on the indoor unit, wipe the outside with
a soft, dry cloth. If necessary, a mild liquid detergent can be applied
and wiped off with a dry cloth.
Preparing for Extended Shutdown Period
Clean the filters and reposition them in the unit. Operate the unit
in Fan only mode for 12 hours to dry all internal parts.
Turn main power supply off and remove batteries from the remote
control.
System Operation Recommendations
The items outlined in the following list will help to assure proper
system operation:
• Replace both remote control batteries at the same time.
• Point the remote control toward the unit display panel when
transmitting a command.
• Keep doors and windows closed while unit is operating.
• 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 direct 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 Saving Recommendations
The following recommendations will add greater efficiency to the
ductfree system:
• 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 de-
pending on indoor air quality.
• Use drapes, curtains or shades to keep direct sunlight from
heating room on very hot days.
• Do not obstruct air intake on front panel.
• Turn on air conditioning before indoor air becomes too un-
comfortable.
Troubleshooting
Refer to Table 2 before contacting your local dealer.

Table1--Periodic Maintenance
INDOOR UNIT EVERY MONTH
Clean Air Filter* •
Change Remote Control Batteries
OUTDOOR UNIT EVERY MONTH
Clean Outdoor Coil from Outside
Clean Outdoor Coil from Insidel-
Blow Air Over Electric Partsl-
Check Electric Connection Tighteningl-
Clean Fan Wheell
Check Fan Tighteningl
Clean Drain Pans1-
* Increase frequency in dusty zones.
1- Maintenance to be carried out by qualified service personnel. Refertothe Installation Manual
EVERY 6 MONTHS EVERY YEAR
EVERY 6 MONTHS EVERY YEAR
PROBLEM
Unit/System Does Not Work •
Cooling is Not Working
Properly
Heating is Not Working •
Properly •
Unit Stops During Operation •
Table 2--Troubleshooting
POSSIBLE CAUSE
The circuit breaker has tripped or a fuse •
has blown.
Power failure. •
Diagnostic lights illuminate. • •
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 instead of •
Cool.
The filter is blocked with dust. •
Temperature is set too low. •
A window or door is open. •
The outdoor unit is obstructed. •
The Off timer is not operating correctly. •
Diagnostic lights illuminate. • •
SOLUTION
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.
Clean the air filter.
Check the temperature and reset if necessary.
Close the window or door.
Remove the obstruction.
Restart the operating mode.
Call your service representative.
Diagnostic lights are a combination of lights that will illuminate in the display area on the unit. They are a combination of the lights you see during normal
operation.
Copyright 2009 CAC /BDP • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 03/09
Manufacturer reserve8 the right to change, at any time, specification8 and design8 without notice and without obligations,
10
Catalog No: OM38-40GX-02
Replaces: OM38-40GX-01