Carrier 38BNB user guide manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111 Catalog No. 533-80098 Printed in U.S.A. Form OM38/40-4 Pg 1 4-03 Replaces: New

Book 1 4
Ta b 3 e 2 f

OWNER’S MANUAL

38BNB,BNE018-036
40BNB,BNE018-036

Cooling Only and Heat Pump Duct-Free High Wall Systems

CONTENTS

Page

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2,3

OPERATING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

REMOTE CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

REMOTE CONTROL OPERATION . . . . . . . . . . . . . . . . 3

UNIT OPERA TION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

CLEANING AND MAINTENANCE . . . . . . . . . . . . . . .8,9

AIR FIL TERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Page

INDOOR UNIT FRONT P ANEL . . . . . . . . . . . . . . . . . . . 8

INDOOR UNIT COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

OUTDOOR UNIT COIL . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CONDENSATE DRAINS . . . . . . . . . . . . . . . . . . . . . . . . . 8

SYSTEM OPERATION CHECK LIST . . . . . . . . . . . . . . 9

DIP SWITCH SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . 9

ENERGY SAVING RECOMMENDATIONS. . . . . . . . . 9

TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . 10-12

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DA LY

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INTRODUCTION

Thank you for choosing a Streamline® Duct Free System.
The same pride in craftsmanship and engineering knowledge
that goes into equipment cooling the Astrodome in Texas, the
Sistine Chapel in Rome, the U.S. Capitol Hall of Congress, and
thousands of other installations worldwide has gone into the
construction of this unit.

Duct Free Systems provide quiet, maximum comfort. In ad­dition to cooling and/or heating, the Duct Free System will fil­ter and dehumidify the air in the room to provide maximum
comfort.

GENERAL

The Duct Free System can be set up and operated from the
remote control (provided). See Fig. 1. If the remote is mis­placed, the system can be operated from the “Auto” setting on
the unit.

Operating Modes — The duct free system has 5 operat-

ing modes:

• Cooling

•Fan Only

• Heating (if applicable)

• Dehumidification

• Auto
COOL ING — In Cooling mode, the system cools, dries and

filters room air.

FAN ONLY — In Fan Only mode, the system filters and cir­culates room air without changing room air temperature.

HEATING — In Heating mode, the system heats and filters
room air.

DEHUMIDIFICATION — In Dehumidification mode, the
system dries, filters and slightly cools room air temperature.
This mode does not take the place of a dehumidifier .

AUTO — In Auto mode, the system will automatically cool or
heat room air according to a selected temperature (set point).

If temperature of room air is lower than set point, the system
will operate in Heating mode. If temperature of room air is
higher than set point, the system will operate in Cooling mode.

Remote Control — The remote control transmits com-

mands 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. 1.

IMPORTANT: Duct Free Systems 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.

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

Do not leave remote control in a drawer or near a warm/hot
appliance as the system will try to cool the environment
around the controller .

IMPORTANT: The remote control and unit continually

exchange information regarding room air temperature.

When operating the remote control from the mounting

rack, be sure there is a direct line of sight between the

controller and the unit. The controller can operate the

unit from a distance of up to 23 ft as long as there are not

any obstructions.

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MODE FAN SWEEP

AA

START

STOP
1 2 3 SLEEP

DAI Y

REMOTE CONTROL

MOUNTING RACK

MODE

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A

COOLING
FAN
HEATING FUNCTION
DRY
AUTO

FAN

A

LOW

MEDIUM

HIGH

AUTO

SWEEP

SWEEP
ON/OFF

UP

DOWN

MODE

BUTTON

UP/DOWN

BUTTON

ON/OFF
BUTTON

Fig. 1 — Duct Free System

REMOTE CONTROL BUTTONS —

PROGRAMMING OPTIONS

3

The remote control can perform the following functions:

• Turn the system ON and OFF

• Select operating mode

• Adjust room air temperature and fan speed

• Set time periods for automatic system operation
BATTERY INSTALLATION — Two AAA 1.5V alkaline

batteries (included) are required for operation of the remote
control. See Fig. 2 for battery location.

T o install batteries:

1. Remove battery compartment cover by sliding off of
remote.

2. Insert batteries being sure to follow polarity markings in­side battery compartment.

3. Replace battery compartment cover.

NOTE: Replace batteries whenever “Low battery” indicator
appears on remote control display panel.

DISPLAY SCREEN — There are five operating mode indica­tors that appear on the remote control display screen. See Fig. 3.

OPERATION

Remote Control Operation —

The remote control
has 3 buttons (see Fig. 4) used for operating and controlling the
system:

• MODE button — changes operatin g mode

• UP/DOWN button — selects desired operating mo de

• ON/OFF button — turn s the system on or off and trans-

mits programing selections to unit.

NOTE: When transmitting a command from the controller to
the unit, be sure to point the controller toward the right side of
the unit. See Fig. 4. The unit will confirm receipt of a com­mand by sounding 2 audible beeps.

FAN S PEED — To select the Fan mode and change the Fan
Speed, follow the steps below:

1. Press MODE button to select the Fan mode.

2. Pres s UP/ DOW N b ut ton to select desired fan sp eed o r
to Auto.

3. Press ON/OFF button to send changes to unit from re­mote control.

NOTE: If unit is operating in DEHUMIDIFICATION mode
the fan will only operate in Low speed and cannot be changed.

TEMPERATURE SETTINGS — The temperature settings
can be easily changed by pointing the controller toward the unit
and pressing the UP/DOWN button until desired temperature
appears on screen. The symbol appears each time the ON/
OFF button is pressed.

Another way of changing the temperature is as follows:

1. Select the temperature display by pressing the MODE
button. The degree symbol will flash next to the digits on
the screen.

2. Press UP/DOWN button to select the desired tempera­ture. The available temperature range is from 54 F to
90 F .

3. Press ON/OFF button to send changes to unit from re­mote control.

AIRFLOW DIRECTION — Perform the following steps to
change the direction of airflow from the unit:

1. Press MODE button to select the Sweep function.

2. Press the top of the UP/DOWN button to move the air
deflector on the unit in an up and down motion. The air­flow symbol displays motion.

3. Press the bottom of the UP/DOWN button. Th e a i r f l o w
deflector stops at a given angle. The airflow symbol dis­play remains in a fixed position.

4. Press ON/OFF button to send changes to unit from re­mote control.

NOTE: If placing the air deflector in a fixed position is chosen,
the deflector stops at the angle in which it was located when
the ON/OFF button was pressed.

SETTING CLOCK

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press CLOCK button using the tip of a pen or paper clip.
See Fig. 5.

3. Press UP/DOWN button to set minutes.

4. Press MODE button. The hour digits will flash.

5. Press to UP/DOWN bu tton to set the hour.

6. To confirm current clock settings, press CLOCK button
once again using the tip of a pen or paper clip. The remote
control will automatically go back to previous display
and the clock is displayed.

IMPORTANT: If no changes are made within 10 sec­onds, the remote control will return to its previous
setting.

BACK OF
REMOTE CONTROL

2 AAA 1.5V BATTERIES

BATTERY COMPARTMENT
COVER

A

COOLING

HEATING

FAN ONLY

DEHUMIDIFICATION

AUTO

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Fig. 2 — Location of Batteries on Remote Control

Fig. 3 — Operating Mode Indicators on

Remote Control

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PROGRAMMING TIME PERIODS — The duct free sys­tem can be programmed to operate at desired levels. Be sure to
set the clock before programming the system.

• Increments of time are in 10-m inute intervals.

• The Timer Start/Stop indicator light on the unit is on
when a time period is set. See Fig. 4.

• The remote control displays the Start/Stop time of the
time period that is closest to the current time. If the unit
is ON, “STOP” and the time period is displayed. If the
unit is OFF, “START” and the time period is displayed.

Setting Start/Stop Time

— Timer feature is used to set unit
operation Start/Stop times. Three different time periods up to
10 hours apart and within 24 hours can be programmed using
this feature.

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

IMPORTANT: Be sure to point the remote control
toward the unit while pressing the TIMER or SET
buttons.

TEMPERATURE SENSOR

TRANSMISSION INDICATOR

LOW BATTERY INDICATOR

UP/DOWN BUTTON

DESIRED TEMPERATURE

SENSOR ACTIVE INDICATOR

SWEEP INDICATOR

ON/OFF BUTTON

CLOCK BUTTON*

ROOM TEMPERATURE BUTTON*

DELAY BUTTON*

LOCAL SENSING BUTTON*

INFRARED SIGNAL TRANSMITTER WINDOW

CLOCK

TIMER START/STOP
ONE-TIME/DAILY INDICATORS

MODE BUTTON

OPERATION MODE INDICATORS ­COOLING, FAN, HEATING,
DEHUMIDIFICATION, AUTO

FAN INDICATORS ­LOW, MEDIUM, HIGH, AUTO

TIMER SET BUTTONS*

SLIDE DOWN PANEL

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FAN

SWEEP

AA

START

STOP
1 2 3 SLEEP
DAILY

TIMER

SET

CLEAR

DELAY

SENSE

ROOM

CLOCK

Fig. 4 — Remote Control

*Buttons located behind slide down panel.

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STOP
1 2 3 SLEEP
DAILY

TIMER

SET

CLEAR

DELAY

SENSE

ROOM

CLOCK

Fig. 5 — Location of Clock Set Button

on Remote Control

5

2. Press the TIMER button. Each time the button is pressed
the next Start or Stop set time appears on the display . See
Fig. 6 and 7.

3. Press UP/DOWN button to set the time.

4. T o set another time period, press the TIMER button t o go
to another time period and repeat steps 2 and 3 above.

5. Press the SET button to set the displayed time when done.
See Fig. 4.

NOTE: If changes are not made within 10 seconds, the remote
control will return to its previous display. To correct an error,
the programmed Timer settings must be cancelled and re­entered. See Canceling Daily Timer section.

Sleep Timer

— The Sleep Timer function allows the desired
temperature to be updated while the occupant is sleeping. The
temperature in the room air gradually rises until this time peri­od is exited. The unit will then return to the previous tempera­ture set point. T o set the Sleep Timer, follow the steps below:

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press the TIMER button until Sleep function is reached.

3. Select the “SLEEP” timer period. See Fig. 8.

4. Press UP/D OWN butt on to set the start time and press
TIMER button to set stop time.

5. Press the SET button to set the display time when done.
See Fig. 4.

Setting Daily Timer

— Time periods can be programmed to
operate the system at set times during a 24-hour period. This
timer function can be used for all 3 time periods and sleep peri­od described above.

NOTE: The daily timer operates only when there is a direct
line of sight between the controller and the unit.

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press the TIMER button to select the time period that will
be activated daily .

3. Press and hold the SET button until the word “DAILY”
appears on the display . See Fig. 9.

4. Press the SET button again to confirm the daily operation
for the selected time period. Be sure to point remote con­trol toward the unit while pressing the SET button.

Canceling Daily Timer

— This function will cancel the se-

lected Daily Timer program.

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press the TIMER button to select the time period that will
be activated daily.

3. Press the SET button and hold until the word “DAILY”
disappears on the display.

4. Press the SET button again to remove the daily operation
from the selected time period. Be sure to point remote
control toward the unit while pressing the SET button.

Canceling Specific Start/Stop Time Period

— One or more

timers can be cancelled by performing the following steps:

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press the TIMER button and select desired Timer to can­cel (1,2,3 or Sleep).

3. Press CLEAR button to cancel the selected Timer period.
The Start/Stop times will disappear from the display .

4. Press the SET button to confirm the cancellation. Be sure
to point remote control toward the unit while pressing the
SET button.

Canceling All Time Period

s — All timers can be cancelled by

performing the following steps:

1. Slide down front cover of controller below ON/OFF but­ton. See Fig. 4.

2. Press the TIMER button.

3. Press and hold the CLEAR button until all Start/Stop
times disappear from the display.

4. Check to be sure timer light is off on unit.

5. Press the SET button to confirm the cancellation. Be sure
to point the remote control toward the unit while pressing
the SET button.

ROOM AIR TEMPERATURE DISPLA Y — The current room
air temperature is automatically displayed when the remote
controller is powered off. To display the room air temperature
when the unit is powered on:

1. Slide down front cover of controller below ON/OFF
button. See Fig. 4.

2. Press the ROOM button. The current room air tempera­ture will be displayed for several seconds, then disappear.

See Fig. 10.

STOP
1

STOP
2

START

3

STOP

START

1

START

2

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A

START

STOP
1 2 3 SLEEP

DAILY

TIMER
INDICATOR

Fig. 6 — Timer Display Set Up on Remote

Fig. 7 — Set Timer Indicator on

Remote Control Display

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A

START

STOP
1 2 3 SLEEP

DAILY

SLEEP
TIMER
INDICATOR

Fig. 8 — Sleep Timer Indicator on

Remote Control Display

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DELAYED START/STOP — This function will delay the
Start/Stop function in increments of 1 hour. Delayed Start/Stop
can be programmed with the unit turned ON or OFF.

With the unit turned ON:

1. Slide down front cover of controller below ON/OFF
button. See Fig. 4.

2. Press the DELAY button. The clock will advance 1 hour
and the word “STOP” and number “3” will flash. See
Fig. 11.

3. Press the DELA Y button once to advance the clock an ad­ditional hour until desired delayed time is reached. Be
sure to point the remote control toward the unit while
pressing the DELAY button.

4. The word “STOP” will stop flashing when the command
has been transmitted and received by the unit.

With the unit turned OFF:

1. Slide down front cover of controller below ON/OFF
button. See Fig. 4.

2. Press the DELAY button. The clock will advance 1 hour
and the word “START” and number “3” will flash. See
Fig. 11.

3. Press the DELA Y button once to advance the clock an ad­ditional hour until desired delayed time is reached. Be
sure to point the remote control toward the unit while
pressing the DELAY button.

4. The word “START” will stop flashing when the com­mand has been transmitted and received by the unit.

Canceling Delayed Start/Stop

— T o cancel the Delayed S tart/
Stop function, follow the instructions in Canceling Specific
Start/Stop T ime Period section.

NOTE: The Delay setting is stored in Time period 3.
LOCAL SENSE FUNCTION (2-Way Remote Control) —

The local sense function allows the remote control to operate
by transmitting the room air temperature to the unit at regular
intervals from wherever the controller is located in the room.
The unit will then operate to make the air near the remote con­trol reach the desired temperature.

To set Local Sense function:

1. Slide down front cover of controller below ON/OFF
button. See Fig. 4.

2. Press the SENSE button. The “House” symbol will ap­pear on the display screen. See Fig. 12.

3. Place the remote control in desired location in room. Be
sure there is a direct line between the remote control and
the unit.

To Cancel Local Sense function

— While in “Loca l Se nse”
func tio n, press the SENSE button. The “House” symbol will
disappear from the display screen and Local Sense function
will be canceled.

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A

A

START

STOP
1 2 3

DAILY

DAILY
TIMER
INDICATOR

Fig. 9 — Daily Timer Indicator on

Remote Control Display

Fig. 10 — Room Air Temperature Indicator on

Remote Control Display

STOP

DAILY

3

START

3

DAILY

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LOCAL
SENSE
INDICATOR

Fig. 11 — Delayed Start/Stop Indicators on

Remote Control Display

Fig. 12 — Local Sense Indicator on Remote

Control Display

PROGRAMMING DISPLAY WITH UNIT ON

PROGRAMMING DISPLAY WITH UNIT OFF

Unit Operation (Fig. 13) — In the event that the remote

control is not working or has been misplaced, the unit will
operate as follows:

40BN018,024,030 — Units always operate by the remote
control. If you lose or break the remote, the unit will continue
to operate but settings cannot be changed until you get a new
remote control.

To Turn Unit Off
under the front cover. See Item I, Fig. 13. The AUTO/OFF
indicator light will go off.

To Turn Unit On
the front cover. See Item I, Fig. 13. The AUTO/OFF indicator

— Push the Operation Push Button located

— Push the Auto/Off button located under

light will light. The unit will operate at the settings that have
been programmed using the remote control.

40BN036 — Unit will operate according to predetermined
factory settings.

To Turn Unit Off

— Slide the Operation Switch on the unit

(Item I, Fig. 13) to the OFF position.
To Turn Unit On

— Slide the Operation Switch on the unit
(Item I, Fig. 13) to the AUTO position. The unit will operate at
a temperature setting of 74 F and will automatically select the
required operation mode and fan speed to maintain this setting.

40BN018,024,030

40BN036

FEATURE DESCRIPTION
A Infrared Receiver Receives transmissions from the remote controller.
B FILTER Indicator Light Lights when the air filters require cleaning.
C (ON)/(AIR COND Indicator Light Lights when the air conditioner operates. Flashes when defrosting.
D TIMER Indicator Light Lights when a TIMER Start or Stop time is set.

POWER Indicator Light Lights when the air conditioner is connected to the electricity supply of the proper

E

SERVICE Indicator Light Lights or flashes accordingly to the malfunction. (See further information on

G

Operation Push Button
(40BN018,024,030)

Operation Slide Switch

I

(40BN036)

line voltage.

page 11).

• Turns the air conditioner ON (Auto) Mode and OFF without Remote Control.

• Resets unit after malfunctions and resets the Filter indicator light. (Press the but­ton continuously for 5 seconds.)

• Turns the air conditioner ON (Auto) Mode and OFF without Remote Control.

• Resets unit after malfunctions and resets the Filter indicator light. (Slide Operation
Switch to OFF position for 5 seconds and then return the switch to remote.)

• Operates the air conditioner using the remote controller when the operation switch
is in REMOTE position.

Fig. 13 — Indoor Unit Display Panel Features

7

8

CLEANING AND MAINTENANCE

Air Filters —

Remove and clean the air filters when the
Filter indicator light on the unit display panel is lit. See Fig. 13
and 14.

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. (See Fig. 14.)

3. Vacuum filters.

4. Clean with warm water.

5. Shake filter to remove excess water and dry thoroughly.

6. Replace filter by sliding filter behind front grille until fil­ter snaps in place.

7. Slide Operation Switch on unit to OFF position to reset
Filter status indicator light on 40BN036 units, or press the
ON/OFF button for 5 seconds on 40BN018,024 and 036
units.

8. Slide Operation Switch on unit to REMOTE position to
resume remote control operation.

Indoor Unit (40BN) 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.

Indoor Unit (40BN) Coil — To clean the indoor unit

coil, remove the front panel and vacuum the coil fins. Avoid
bending or damaging the fins.

Outdoor Unit (38BN018-036) Coil — To clean the

outdoor unit coil follow the steps below:

1. Remove any dirt, debris or obstruction from discharge
opening.

2. Use a garden hose to spray water on coil. Be sure to spray
between coil fins to remove any debris that may inhibit
heat transfer.

Condensate Drains — Clean all condensate drains at

the start of each cooling season. Check the flow by pouring wa­ter into the drain.

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

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
and blown fuses may also result from system operation
with dirty air filters.

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

Do not use abrasive or petroleum based cleaners as they
may damage the front panel.

Sharp fins and other metal parts on the outdoor unit coil
can cause personal injury during cleaning.

Fig. 14 — Removing Air Filters

40BN018,024,030 40BN036

System Operation Check List — The items outlined

in the following list will help to assure proper system operation:

• Be sure unit is connected directly to electrical supply.

• Replace both remote control batteries at the same time
when the Low Battery symbol appears.

• Point the remote control toward the unit display panel
when transmitting a command.

• Place the remote control in a location where there is a
direct line for transmission of data to the unit.

• Select a moderate temperature setting. Extreme tempera­tures waste electricity.

• 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 m aintenance activities while
unit is on.

• Keep remote control out of direct sunlight and heat.

• 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.

DIP Switch Settings — The remote control contains

seven DIP switches, located in the battery compartment, two of
which control special system characteristics. See Fig. 15. The
DIP switch default positions are set according to the model air
conditioner installed, as per the following table.

SWITCH12 3 4 567

POSITION ON OFF OFF OFF OFF ON OFF

Switch No. 3 should be set as follows:
OFF (default) — When only one air conditioner is installed

in the room.

ON — When there are two air conditioners with remote

controllers installed in the room, in one of the remote control­lers this switch must be in the ON position. To activate the new
switch setting, simultaneously press the MODE and ROOM
buttons.

Switch No. 4 should be set as follows:
OFF — Displays temperature in °C, with a 24-hour clock

format.

ON — Displays temperature in °F, with a 12-hour clock

(PM indictor) format.

T o operate the special systems characteristic s:

1. Remove the batteries.

2. Set the DIP switches to the required positions.

3. Wait approximately 2 minutes and return batteries to
proper position.

Energy Saving Recommendations — The follow-

ing recommendations will add greater efficiency to the duct
free 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 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.

ON

OFF

1234567

ON

ECE

1234567

Fig. 15 — DIP Switch Location in Remote Control

9

TROUBLESHOOTING GUIDE

Your air conditioner is very reliable and requires little maintenance. However, the air conditioner’s proper operation can be interrupt­ed by a malfunction in the electrical system or by incorrect operation. You can try to overcome these simple malfunctions yourself, with
the aid of the following table and the malfunction displays shown in Fig. 16.

PROBLEM POSSIBLE CAUSE SOLUTION

Air conditioner does not work. • No command is transmitted to air conditioner. • Press the On/Off (Transmission) button.

POWER indicator light is not lit. • Air conditioner is not properly connected. • Check electrical connection.

FILTER indicator light is lit. • Filters require cleaning. • Remove and clean filters.

Air conditioner is working, but
does not perform the required
operation.

(ON)/(AIR COND). Indicator light is
continuously flashing.

Various indicator lights
behave differently than
shown in Fig. 13.

Air conditioner does not operate
with the remote controller.

The remote controller of another
air conditioner interferes with
your air conditioner’s operation.

• Air conditioner did not receive transmitted
command.

• Automatic interrupter switched Off. • Reset interrupter.

• Fuse burned. • Replace fuse.

• Desired temperature setting is higher than
room air temperature when operating in the
COOLING mode.

• Desired temperature setting is lower than room
air temperature when operating in the HEATING
mode.

• The control system is malfunctioning. • For 40BN036 slide the operation switch to OFF

• There is no direct line of sight between

the remote controller and the air conditioner.

• The air conditioner has reached the desired
temperature and stopped the compressor oper­ation (thermostat function).

• Incorrect operation or malfunction. • For 40BN018,024,030 press the operation push

• In 40BN036 the operation push button is in
AUTO or OFF. (For 40BN018,024,030 go to
next bullet.)

• The remote controller batteries are weak. • Replace the batteries.

• The remote controller is malfunctioning. • Turn the air conditioner On and OFF using the

• Both remote controllers are transmitting

on the same wavelength.

• Make sure that remote controller is pointed at air
conditioner during command transmission.

• For 40BN036 move operation switch to OFF
position for 5 sec. and return it to REMOTE.

• For 40BN018,024,030 press the operation push
button continuously for 5 seconds.

• Lower the desired temperature setting.

• Raise the desired temperature setting.

position for 5 sec. and return it to REMOTE.

• For 40BN018,024,030 press the operation push
button, continuously for 5 seconds. Press once
again to operate the air conditioner.

button continuously for 5 seconds.

• For 40BN036 slide the operation slide switch
to OFF position for 5 sec. and return it to
REMOTE.

• Restart the air conditioner, if the problem per­sists, call service personnel.

• For 40BN036 turn the operating switch to
REMOTE position.

operation push button or slide switch.

• Call service personnel.

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On each Malfunction, Indicator Light (red) will flash at a constant rate:

40BN018,024 AND 030 40BN036

40BN018,024 AND 03040BN036

Malfunction Indication Display

For 40BN036 the malfunction can be read by the rate of the flashing light on the control. (Raise the front grille list.)
For 40BN018,024,030 the malfunction can be read without raising the front grille by the rate of the flashing service light.

Malfunction Display Light

TH1 Malfunction • 1 short flash
TH2 Malfunction • 2 short flashes
Low Pressure Malfunction • 3 short flashes
High Pressure Malfunction • 4 short flashes
Low Voltage Malfunction • 5 short flashes
High Voltage Malfunction • 6 short flashes

Fig. 16 — Malfunction Displays

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