Carrier 40KMC User manual
33MC--URC
OWNER’S MANUAL
40QNC
40QNQ
40KMC
40KMQ
Room Controller
2
This control system only operates with indoor units of the following types:
40KMC and 40KMQ Cassette, 40QNC and 40QNQ Highwall.
For installation instructions of these units, refer to the relevant manuals.
CONTENTS PAGE
General Information and Characteristics 3...............................................................
Power Up 4.........................................................................................
Setting Mode Operation 4/5...........................................................................
OFF Mode 4................................................................................
AUTO, HEAT, COOL and DRY Modes 4..........................................................
Fan Only Mode 5............................................................................
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IMPORTANT: Read this manual carefully before using the
appliance.
In case of main power supply failure, the autonomous operation of
the Room Controller is maintained for up to 2 hours.
SPay special attention to maintaining a comfortable room
temperature above all for children and elderly or
handicapped persons.
SFor correct use the conditioner must only operate at the
temperatures indicated in the “Operating Limits” table
included in the Technical manual.
SIf the unit is made to operate beyond these limits faults
or water leaks may occur.
SMake sure the Room Controller control unit has not been
damaged during transport; if so, file an immediate claim
with the shipping company.
SUse the appliance only for the purpose it was designed
for.
SDispose of packaging material in accordance with local
requirements.
SDo not open the appliance to avoid damage. In case of
malfunction, contact a qualified service engineer.
A= Display readout
B= Increase temperature /change louver setting button
C= Decrease temperature /change louver setting button
D= Fan selection button
E= Mode selection button A = Display readout
CDE
A B
Fig. 3 – Room Controller
1234
987 65
1=Automatic
2=Off
3= Temperature selected /
room temperature
4= Set Temperature
5= Operating position of the air louver
6= Fan speed
7= Heating
8= Cooling
9= Dehumidification only
Fig. 4 – Display of Selected Functions
Characteristics
SSingle unit operation:
⎯Ability to control one unit only.
SGrouping:
⎯Ability to control 2 to 6 units with one Room
Controller.
SOperating modes:
⎯Off, Heat, Cool, Dry, Auto, and Fan only.
SFan speeds:
⎯Low, Medium, High, and Auto.
SLouver control:
⎯Auto and swing.
SDesired temperature:
⎯Range between 17 and 32 _C(63and90_F).
SRoom Thermistor Override:
⎯Allows to use air sensor located in the Room
Controller instead of the one located into the unit.
SNon--volatile memory:
⎯Ability to retain user settings configurations during
power outages.
SDiagnostics:
⎯Detects the fault of air sensor in the Room Controller.
⎯“A1“ shown on the screen indicates this anomaly.
up
down
“UP” and “DOWN” Buttons
Buttons for raising or lowering the temperature or for selecting the
“AUTO“ or “SWING” louver mode.
Button for operation mode selection.
Button for fan or louvre selection.
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POWER UP
All segments of the LCD should be energized for five seconds. The
mode, fan, louver, desired temperature and configuration
information should be read from the EEPROM. If the EEPROM
values are not valid, the following should be used as defaults:
Operating Mode = AUTO..........................
Fan Speed = AUTO...............................
Desired Temperature = 72_F........................
_For_C= F....................................
Louver = AUTO.................................
Room Thermistor Override = OFF..................
Cooling only vs Heat/Cool Remote = Heat/Cool........
When switched on, the control display appears.
Setting Mode Operation
Pressing the “MODE“ button will cause the mode to change. The
“MODE“ button must be released and then pressed again in order
to change to the next mode.
The active mode will always be lit in normal operation.
Available modes to select are:
Heat
/
Cool Remote:
OFF, COOL, DRY, FAN ONLY, AUTO, HEAT
Cooling Only Remote:
OFF, FAN ONLYCOOL, DRY,
When the “MODE” button is not pressed for 15 seconds, the next
press will always switch the mode to OFF.
OFF Mode:
ICONS Energized
SOFF Mode
SRoom Temperature if configured for Room Thermistor
Override, otherwise nothing
Buttons available:
S“MODE“ button
AUTO, HEAT, COOL and DRY Modes:
ICONS Energized:
SOperation Mode ICON.
SRoom Temperature if configured for Room Thermistor
Override (operated by Room Controller), otherwise user
selected temperature with the ”SET TEMP“ Icon.
SFAN/LOUVER Icon with the user selected Fan and
Louver
Buttons available:
SAll buttons are available
AUTO Automatic operation
NOTE: The compressor and electric heater must be off for at least
30 Minutes, this time being necessary to pass from Heating to
Cooling, or Cooling to Heating. This will prevent the system from
switching between Heating and Cooling continuously.
COOL Cooling operation
DRY Drying operation.
HEATHeating operation.
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FAN ONLY Mode:
ICONS Energized:
SRoom Temperature if configured for Room Thermistor
Override (operated by Room Controller), otherwise
nothing.
SFAN/LOUVER Icon with the user selected Fan and
Louver settings.
Buttons available:
S“MODE“ and “FAN” buttons are available.
fan only Ventilation operation only.
“UP” and “DOWN” Button
(Selecting the desired temperature)
up
down
Pressing either the “UP“ or “DOWN“ buttons will modify the
desired temperature.
The maximum desired temperature is 32_C(90_F) and the
minimum desired temperature is 17_C(63_F).
Whenever the setpoint is being displayed, the “SET TEMP“ icon is
illuminated.
Whenever the display mode is changed from “F” to “C”, the
setpoint is set to the default start--up values of 22_C for “C“ mode
and 72_F for “F“ mode.
If the air sensor built in the Room Control is enabled, the display
will indicate the room temperature after few seconds.
“FAN” Button
(Adjusting the ventilation speed)
Pressing the “FAN“ button will cause the fan speed to change. The
“FAN” button must be pressed and then released to reach the
desired speed (Low, Medium, High or Auto).
The icon on the display indicates the change has occurred.
Auto mode setting will be displayed by blinking the fan Medium
speed and High speed icons in order (Med then Hi then repeat).
Low
Medium
High
Automatic
Fan speed will automatically switch to
the value required for optimum comfort.
When this function is activated, the
dotted symbols will flash.
LOUVER MODE SELECTION
To enter louver mode selection, make sure the Room Controller is
on and hold the ”FAN“ button down for 5 seconds.
After 5 seconds, the selected louver setting will be displayed.
By pressing the up and down buttons the user can modify the
louver desired configuration.
The two setting will be displayed in the following way:
“S“ with Swing Louver Icon -- represents Swing Louver.
“A“ with Auto Louver Icon -- represents Auto Louver.
Press “FAN“ button to exit LOUVER Mode Selection.
This mode will exit automatically after 10 seconds if no buttons are
pressed.
The only way to change the operation mode, is to go back to this
menu.
NOTE:
SIf units are grouped to one Room Controller , all units will end up
having the same louver value.
SLouver Mode selection is not available during OFF mode.
:AUTO Automatic louver positioning to the best position
for the selected operating mode.
:SWING Louvres swing continuously.
6
Copyright 2006 Carrier Corp. S7310 W. Morris St. SIndianapolis, IN 46231
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
C a t a l o g N o : O M 3 3 M C --- U R C --- 1
Replaces: NEW
Printed in U.S.A. Edition Date: 08/06
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