MITSUBISHI MRCH1 User Manual
Operating Manual
69-2427EFS-01
MRCH1 Remote Controller
Operating
Manual
M28450A
Quick Reference
Card
Grasp and pull to
see basic operating
instructions at a glance.
Battery Holder
Press down and pull to
remove batteries.
Batteries should be
replaced once a year
(see page 28).
CAUTION: EQUIPMENT DAMAGE HAZARD. Please refer to the equipment Operating
Manual for recommended operating temperatures.
Need Help?
For assistance with this product please visit http://controls.mehvac.com
or call Mitsubishi Electric toll-free at 888-990-7546
Read and save these instructions.
© 2010 Mitsubishi Electric & Electronics USA, Inc. Suwanee, GA 30024. Patents pending. All Rights Reserved.
The three diamond logo is a registered trademark of Mitsubishi Electric Corporation
www.mitsubishipro.com
Contents
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About your new remote controller
Programming at a glance .................. 2
Quick reference to controls .............. 3
Quick reference to display screen .... 4
Programming & Operation
Set the time and day ......................... 5
Select the fan setting ........................ 6
Select the system setting.................. 7
Multi-zone configurations ................. 8
Drying mode ...................................... 9
Program schedules ......................... 10
Program schedule overrides ........... 13
System changeover ......................... 17
Portable Central Controller ............. 18
Outdoor air sensor .......................... 19
Additional features .......................... 20
1 69-2427EFS—01
Appendices
Advanced functions......................... 24
Battery replacement ........................ 28
In case of difficulty .......................... 31
Regulatory information .................... 32
Limited warranty .............................. 33
Operating Manual
About your remote controller
Your new remote controller is pre-programmed and ready to go. All you have to do is
set the time and day. Then check the settings below and change if needed:
Set time and day (required for proper operation)1. .......................... See page 5
Select fan setting2. ................................................................................. See page 6
Select system setting3. .......................................................................... See page 7
Program schedules: 4. Preset to energy-saving levels
while space is occupied (assumes arrival at 8 am
and departure at 10 pm) ................................................................ See pages 10-11
ONE TOUCH TEMP CONTROL: You can override the program schedule at any time,
and manually adjust the temperature (see pages 13-16).
69-2427EFS—01 2
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M28451A
Quick reference to controls
Digital display (see page 4)
Function buttons
Press to select the function displayed just above each button.
(Functions change depending on the task.)
3 69-2427EFS—01
Temperature buttons
Press to adjust temperature
settings
Battery holder (see page 28)
Hold button
Press to override programmed
temperature control (see page 16)
Operating Manual
M32209
AM
Indoor
Setting
Heat
More
Heat
Auto
System
Fan
Set
Clock/Day
Schedule
ReplaceBattery
occupied1
Locked
Recovery
Quick reference to display screen
Optimal Start
(see page 23)
Low battery warnings
(see page 28)
Current inside
temperature
Current program period
occupied/unoccupied or
Wake/Leave/Return/Sleep
(see pages 10-11)
Set Clock/Day/
Schedule
(see pages 5 and 12)
Fan Setting
Auto/On/Selectable
69-2427EFS—01 4
Note: Options may vary depending on your equipment.
(see page 6)
Current time
(see page 5)
Temperature setting
(see pages 12–16)
Locked
(see page 23)
More
(see pages 20–23)
System setting
Cool/Heat/Drying/Auto/Off (see page 7)
Set the time and day
M32211
Set
Schedule
Set
Day
Done
Mo
DaySet
M32218
More
Heat
Auto
System
Fan
Set
Clock/Day
Schedule
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Press SET CLOCK/DAY/SCHEDULE, then adjust time
Press 1. SET CLOCK/DAY/SCHEDULE, then
press s or t to set clock.
Press 2. SET DAY, then press s or t to
select the day of week.
Press 3. DONE to save.
Note: If the SET CLOCK/DAY/SCHEDULE
Press SET DAY, then select current day
5 69-2427EFS—01
option is not displayed, press DONE or
CANCEL.
Note: If the display flashes “Set
Clock,” the remote controller will
follow your settings for the weekday
“occupied1” (or “Wake”) time period
until you reset the time and day.
Operating Manual
M32212
More
Heat
System
Fan
Set
Clock/Day
Schedule
Auto
M32213
More
Heat
Lo Hi
System
Fan
Set
Clock/Day
Schedule
Select the fan setting
Note: Selectable fan speed
options may vary depending on
your equipment.
69-2427EFS—01 6
Press FAN to select Auto or selectable fan
speed.
In “Auto” fan mode the equipment determines the optimal fan speed to meet the
set temperature.
When system switch is “Off”, press FAN to
circulate air. The fan will run at the user’s
selected fan speed.
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M32214
More
Cool
Auto
System
Fan
Set
Clock/Day
Schedule
M32300
More
Drying
Auto
System
Fan
Set
Clock/Day
Schedule
M32215
More
Heat
Auto
System
Fan
Set
Clock/Day
Schedule
M32301
More
Auto
Auto
System
Fan
Set
Clock/Day
Schedule
Select the system setting
Press SYSTEM to select:
• Cool: Remote controller controls only
in the cooling mode.
• Heat: Remote controller controls only
in the heating mode.
• Drying: Remote controller directs
indoor unit to remove moisture out
of the air. May result in temperatures
below your cool setting.
• Auto: Remote controller automatically
selects heating or cooling depending
on the indoor temperature.
Note: Options may vary depending on your equipment.
7 69-2427EFS—01
• Off: Indoor unit is off.
Operating Manual
M28946
AM
Indoor
Setting
Heat
More
Heat
Auto
System
Fan
Set
Clock/Day
Schedule
occupied1
Wait
Multi-zone configurations
In multi-zone configurations, each zone
is typically set to the same mode (Cool,
Heat, or Drying).
If zones are set to different modes, the first
indoor unit to call for heat or cool will take
priority. Other zones go into standby, and
“Wait” will be displayed on the screen.
69-2427EFS—01 8
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M28947
More
Drying
Auto
System
Fan
Set
Clock/Day
Schedule
Drying mode (if configured)
Drying mode removes moisture from the
air and works differently depending on
the type of equipment installed. The temperature setting might or might not be
displayed.
The indoor unit will determine the Drying
mode temperature setting. The setting will
be either:
• the cool temperature setting, or
• 3°F (2°C) below room temperature.
9 69-2427EFS—01
Operating Manual
Program default settings
This remote controller is pre-set to use energy saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses. (See
page 12 to adjust times and temperatures of each time period.)
Cool (Mon-Fri)Heat (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun)
occupied1
(8:00 am)
unoccupied1
(10:00 pm)
occupied 2
70
55
°
°
75
85
°
°
70
55
°
°
75
85
°
°
-- -- -- --
unoccupied 2
-- -- -- --
occupied 2 and unoccupied 2 periods may be programmed as needed, depending on
installed configuration.
69-2427EFS—01 10
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Residential program default settings
This remote controller is pre-programmed to use commercial energy saving program
settings. For use in a home, change the program to match your schedule. (See page
12 to adjust times and temperatures of each time period.)
Cool (Mon-Fri)Heat (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun)
Wake
(8:00 am)
Leave
(10:00 am)
Return
70
55
°
°
75
85
°
°
(or cancel period)
70
55
°
°
(or cancel period)
75
85
°
°
-- -- -- --
Sleep
-- -- -- --
May cancel Leave, Return and Sleep periods.
11 69-2427EFS—01
Operating Manual
M32218
More
Heat
Auto
System
Fan
Set
Clock/Day
Schedule
M32219
Set
Schedule
Set
Day
Done
To adjust program schedules
Note: You may cancel a period using the CANCEL PERIOD button. If configured, you may
power the system completely off during the period by using the POWER OFF PERIOD button.
69-2427EFS—01 12
1. Press SET CLOCK/DAY/SCHEDULE, then SET
SCHEDULE.
2. Press s or t to set your weekday
occupied1/Wake time (Mon–Fri), then press
NEXT.
3. Press s or t to set the heat temperature for
this time period, then press NEXT.
4. Press s or t to set the cool temperature for
this time period, then press NEXT.
5. Set time and temperature for the next time
period (unoccupied1/Leave). Repeat steps 4
and 5 for each weekday time period.
6. Press NEXT to set weekend time periods (SatSun), then press DONE to save & exit.
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M32221
PM
Indoor
Setting
Cool
More
Auto
Auto
System
Fan
Cancel
Hold Until
Schedule override (commercial only)
Press to temporarily adjust temperature.
If a person is present during an
unoccupied period, press HOLD to
temporarily use occupied temperature. Each additional press of HOLD
extends the HOLD UNTIL duration by 1
hour to a limit set by the installer.
The timer will expire automati-
Press to resume
program schedule
Note: Permanent hold not available on commercial configuration.
13 69-2427EFS—01
cally or schedule may be manually
resumed by pressing CANCEL.
Operating Manual
M28948
Done
Hold Until
Days
M28950
Setting
Cool
Select
Heat/Cool
Reset
Done
Hold Until
Days
Holiday override (commercial only)
If the building will be unoccupied for more than
one day, you can use Holiday override to maintain an unoccupied temperature.
Press MORE until the Hold Until screen appears.
Press s or t to set the number of days, then
press NEXT.
Press s or t to set the heat or cool tempera-
ture setting, then press DONE.
69-2427EFS—01 14
The cool temperature setting can only be set
higher and the heat temperature setting can
only be set lower than the unoccupied program
schedule.
To clear the Holiday override from the home
screen, press CANCEL.
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M32221
PM
Indoor
Setting
Cool
More
Auto
Auto
System
Fan
Cancel
Hold Until
Temporary hold (residential only)
Press to temporarily adjust temperature.
Temperature will be
Press to resume
program schedule
maintained until the
time shown
Press s or t to immediately adjust
the temperature. This will temporarily
override the temperature setting for
the current time period.
The new temperature will be
maintained only until the next
programmed time period begins (see
page 11).
To cancel the temporary setting at any
time, press CANCEL.
15 69-2427EFS—01
Operating Manual
M32222
PM
Indoor
Setting
Cool
More
Auto
Auto
System
Fan
Cancel
Hold
Permanent hold (residential only)
Press to permanently adjust temperature.
Press to resume
program schedule
69-2427EFS—01 16
Temperature will
be maintained until
CANCEL button is
pressed.
Press HOLD to permanently adjust
the temperature. This will override
the temperature settings for all time
periods.
The HOLD feature turns off the
program schedule and allows you to
adjust the temperature manually, as
needed.
The system will maintain the set
temperature until you manually
change it or you press CANCEL to
resume the program schedule.
M32217
More
Auto
Auto
System
Fan
Set
Clock/Day
Schedule
System Changeover
Press until screen
displays “Auto”
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System Changeover is a feature used in climates
where both air conditioning and heating are often
used on the same day. When the system is set
to “Auto,” the remote controller automatically
selects heating or cooling depending on the
indoor temperature.
Heat and cool settings must be at least 2
degrees apart, depending how your remote controller was configured. The remote controller will
automatically adjust settings to maintain this 2
(or more) degree separation.
Note: The “Auto” system setting may not appear, depending on how your remote
controller was configured.
17 69-2427EFS—01
Operating Manual
Portable Central Controller (optional)
The optional Portable Central Controller can
manage temperatures of multiple split-zoning
systems from almost anywhere on the property.
The Portable Central Controller also works with
other RedLINK™ devices used with other types
of heating and cooling equipment.
One Portable Comfort Control can adjust up to
16 zones on a single property.
Note: The remote controller may take up
to 15 seconds to respond to commands
entered at the Portable Central Controller.
69-2427EFS—01 18
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Outdoor air sensor (optional)
The outdoor air sensor allows outdoor air
temperature and humidity to be shown on your
remote controller.
The outdoor air sensor also works with other
RedLINK™ devices used with other types of
heating and cooling equipment.
Only use AA lithium batteries for the outdoor air
sensor.
19 69-2427EFS—01
Operating Manual
M32302
Outdoor
Humidity
Outdoor
More
FindRemote
Done
Remote Controller additional features
To display outdoor temperature and humidity
If you have an outdoor air sensor, press MORE
to display the current outdoor temperature and
humidity. Press DONE to exit.
To find a lost Portable Central Controller
If you misplace a Portable Central Controller, press MORE, then FIND REMOTE. The Portable
Central Controller will beep for two minutes to help you locate it. Press anywhere on the
display screen of the Portable Central Controller to stop the beeping.
69-2427EFS—01 20
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M32305
Done
Floor
Ceiling
SetAirflow Direction
Remote Controller additional features (continued)
To set up/down airflow direction
(vane control)
If you would like to manually set the airflow
direction, press MORE, then s or t to select the
desired position, “Auto” or “Oscillate.”
Note: “Auto” position is determined by the system equipment to provide maximum efficiency and comfort. Top and bottom positions may change after 1 hour to
prevent condensation.
Note: Airflow direction positions may vary depending on your equipment.
21 69-2427EFS—01
Operating Manual
M32304
PM
Indoor
Setting
Heat
More
Auto
Auto
System
Fan
Cancel
at:
Power
Off
Remote Controller additional features (continued)
Set a timer to automatically power off the indoor unit (if configured)
Press MORE until “Power Off At” is displayed. Press s or t to set the time at which you
would like the unit to turn off. Press DONE to exit. Note: This is not a recurring timer.
This timer can be set up to 24 hours in advance. Depending on how this feature was
installed, the indoor unit will either:
A) Stay turned Off indefinitely until the user changes the system mode.
B) Stay turned Off until the next scheduled period
Example:
If a room will be unoccupied at 10:00 PM, press
MORE until “Power Off At” appears. Press s until
10:00 PM. Press DONE to exit.
To clear the “Power Off At” timer from the home
screen, press CANCEL.
69-2427EFS—01 22
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Remote Controller additional features (continued)
Optimal Start: This feature eliminates the guesswork when setting your schedule. It
allows the remote controller to “learn” how long your Split-Zoning System takes to
reach programmed temperature settings, so the temperature is reached at the time
you set.
Locked: To prevent tampering, features can be fully or partially locked. When
a selected feature is locked, the word “Locked” is displayed on the screen for
approximately 5 seconds.
23 69-2427EFS—01
Operating Manual
M32303
Back
Done
Next
M289872
More
Advanced functions
Press and hold the MORE button until the display changes. “WAIT” will be displayed for up to 17
seconds.
Function
Option
Press s or t to
change option
(see pages
25-27).
Press NEXT to
Press DONE to save & exit.
display next
function screen
(see pages 25-27).
69-2427EFS—01 24
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Advanced functions
Press s/t to change option, then press NE XT.
Filter Change Reminder
Function 107 This feature displays an alert to remind you to change the filter in the indoor unit.
Options: 1 = 100 H ours
2 = 2500 Hours
3 = OFF (no reminder to change filter)
Schedule Format
Function 148
Options: 0 = 5-2 (Monday – Friday) (Sat-Sun)
Press s/t to change the schedule format.
1 = 5-1-1 (Monday – Friday) (Sat) (Sun)
Optimal Start
Function 150 See page 23 for description of feature.
Options: 1 = ON
0 = OFF
Fahrenheit or Celsius Display
Function 156
Options: 0 = Fahrenheit
Press s/t to change the display.
1 = Celsius
25 69-2427EFS—01
Operating Manual
Advanced functions
Full Lockout
Function 160 This feature prevents users from changing all settings.
Options: 0 = OFF
Lockout OFF Mode
Function 162 This feature prevents users from changing the system mode to OFF.
Options: 0 = OFF
Lockout System Mode
Function 164 This feature prevents users from changing the system setting (Heat, Cool, Off, Auto etc.).
Options: 0 = OFF
Lockout Fan Mode
Function 165 This feature prevents users from changing the fan setting.
Options: 0 = OFF
69-2427EFS—01 26
1 = ON
1 = ON
1 = ON
1 = ON
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Advanced functions
Lockout Temperature Setting
Function 166 This feature prevents users from changing the temperature setting.
Options: 0 = OFF
Lockout Set Clock/Day/Schedule
Function 168 This feature prevents users from changing the clock, current day and the schedule.
Options: 0 = OFF
Maximum Heat Temperature Setting Allowed
Function 170 This feature prevents users from changing the Heat temperature setting above the selected
Options: 90 = 90°F (32°C) Temperature Limit
Minimum Cool Temperature Setting Allowed
Function 172 This feature prevents users from changing the Cool temperature setting below the selected
Options: 50 = 50°F (10°C) Temperature Limit
27 69-2427EFS—01
1 = ON
1 = ON
temperature limit.
40-89 = 40 to 89°F (4 to 32°C)
temperature limit.
51-9 9 = 51 to 99°F (11 to 37°C)
Operating Manual
M28466A
M28442M2844
2
Battery replacement (remote controller)
Press down and pull to remove.
Install fresh batteries when the “REPLACE
BATTERY” warning begins flashing. The
Replace Battery
warning flashes about two months before the
batteries are depleted.
Remove the battery holder and install 2 fresh
AA alkaline batteries.
After batteries are installed, the remote
controller will automatically restore
Insert fresh AA alkaline
batteries, then reinstall
battery holder.
69-2427EFS—01 28
communication with the wireless network
within a few minutes.
Note: If batteries are inserted within 2 minutes,
the time and day will not have to be reset. All
other settings are retained in memory.
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