Mitsubishi Electric MHK2 User manual

RedLINK™ Wireless
Remote Controller Kit
Installation Manual
MHK2:
MRCH2 Controller, MIFH2
Receiver, and MRC2 Cable
DISCONNECT POWER BEFORE BEGINNING INSTALLATION.
Can cause electrical shock or equipment damage.
Must be installed by a trained, experienced technician.
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a
hazardous condition.
Installation at a Glance
This manual covers the installation and setup of the MHK2 Remote Controller with Mitsubishi Electric
indoor units.
Before you begin, you must attach the cable to the CN105 connector on the indoor unit control
board, then follow the steps in this document.
Note: Remote Controllers are linked to specific indoor units. Each indoor unit must have a
dedicated Remote Controller and Wireless Receiver.
Note: Your device's PIN code is your date code added to 1234. For example, a date code of
2010 plus 1234 would give you a device PIN of 3244.
© 2019 Mitsubishi Electric US, Inc.
Suwanee, GA 30024 All Rights Reserved.
https://mhk2.meushvac.com/
1-800-433-4822
MHK2 is compatible
with kumo cloud®when
connected with the Wireless
Interface 2 or later. RedLINK
Technology
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2
Table of Contents
Mounting Wall Plate...................................................................................................................3
Install Batteries..........................................................................................................................3
Mounting MHK2 RedLINK™ Wireless Remote Controller....................................................3
Optional Decorative Cover Plate Installation.........................................................................4
Install Cable and RedLINK™ Wireless Receiver...................................................................4
Link All Devices to RedLINK™ Network.................................................................................5
Indoor Air Sensor (IAS) ............................................................................................................5
Link Remote Controller to RedLINK™ Receiver ...................................................................6
Exit RedLINK™ Setup...............................................................................................................6
Initial Installer Setup .................................................................................................................7
Installer Setup – Advanced Menu (After Initial Installation)................................................7
Advanced Menu Options ..............................................................................................................7
M-Series & P-Series Indoor Unit Function Codes.................................................................8
Installer Setup Options (ISU) – Advanced Menu...................................................................10
Static Pressure Settings...........................................................................................................12
PEAD-AA......................................................................................................................................12
SEZ...............................................................................................................................................12
SVZ - Vertical, Horizontal Left & Right.........................................................................................12
SVZ -Downflow.............................................................................................................................12
PVA - Vertical, Horizontal Left & Right .........................................................................................12
PVA - Downflow............................................................................................................................12
Vane Settings .............................................................................................................................12
Mode No. 11 .................................................................................................................................12
Performing a System Test ........................................................................................................13
kumo cloud® ..............................................................................................................................13
Automatic Setting of Time Provided by the Wireless Interface ..........................................13
Key Features...............................................................................................................................14
RedLINK™ Error Codes............................................................................................................15
Replacing System Components ..............................................................................................15
RedLINK™ Wireless Remote Controller ......................................................................................15
RedLINK™ Wireless Receiver .....................................................................................................15
Regulatory Information.............................................................................................................16
Read Before Installing
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3
1 2
3
Mounting Wall Plate
1. Open package to find the Wall Plate. See Figure 1.
2. Position the Wall Plate on the wall. Level and mark
hole positions. See Figure 2.
Drill holes at marked positions, and then lightly tap
supplied wall anchors into wall using a hammer.
‒ Drill 7/32” holes for drywall.
3. Place the Wall Plate over the wall anchors. Insert and
tighten mounting screws supplied with the Wall Plate.
Do not overtighten. Tighten until the Wall Plate no
longer moves. See Figure 3.
Use 3x supplied
screws #8 1-1/2”
1 Align the Wall Plate with the MHK2 Controller and
push gently until the MHK2 snaps in place.
2 If needed, gently pull to remove the MHK2 Controller
from the Wall Plate.
Note: Avoid locations where there are air drafts
(top of staircase, air outlet), dead air spots
(behind a door), direct sunlight or concealed
chimney or stove pipes.
Install Batteries
Insert AA batteries
Mounting MHK2 RedLINK™ Wireless Remote Controller
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4
Optional Decorative Cover Plate Installation
Use the Optional Cover Plate when:
• Mounting the controller to an electrical junction box
• Or when you need to cover paint gaps from the old
controller.
4. Separate the Junction Box Adapter from the Cover
Plate. See Figure 4.
5. Mount the Junction Box Adapter to the wall or an
electrical box using any of the eight screw holes.
Insert and tighten mounting screws supplied with
Cover Plate Kit. Do not overtighten. Make sure the
Adapter Plate is level. See Figure 5.
6. Attach the Wall Plate by hanging it on the top hook
of the Junction Box Adapter and then snapping the
bottom of the Wall Plate in place. See Figure 6.
7. Snap the Cover Plate onto the Junction Box Adapter.
See Figure 7.
Use 2x
supplied
screws #6
5/8”
7
6
5
4
Install Cable and RedLINK™ Wireless Receiver
Note: If you are using a Mitsubishi Electric Wireless
Interface 2 with the kumo cloud®app, please refer to
"kumo cloud®" on page 13.
1. Connect MRC2 cable to the CN105 connector on the
control board in the indoor unit.
2. Route MRC2 cable outside the electrical box and to
the preferred install location of the RedLINK Wireless
Receiver.
3. Attach the 5 pin connector to the Wireless Receiver.
Notes:
• Do not cut or modify the cable.
• Do not block vents on the indoor units.
4. Mount Wireless Receiver next to the indoor unit shown
in the orientations below or, for units that have them,
inside the indoor unit's Wireless Interface pocket.
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5
Link All Devices to RedLINK™ Network
Note: The receiver does not have a power status light.
Please make sure the indoor unit has been powered up.
1. Press and release the CONNECT button.
2. If the CONNECT light does not flash, another receiver or
a RedLINK™ Wireless Receiver may be in wireless setup
mode. Exit wireless setup at the other device.
3. Be sure to only have one unit in wireless setup mode at a
time and complete setup before connecting another MHK2
and unit.
Connect LED:
• Flashing Green: In wireless setup mode.
• Fast Flashing Green: In the process of pairing.
• Solid Green: At least one RedLINK™ device is enrolled
onto the receiver.
• Amber: Please wait.
• Red: RedLINK™ device is not communicating.
• Off: No RedLINK™ devices are enrolled onto the receiver.
Notes:
• The flashing status light times out after 15 minutes of
inactivity. Press CONNECT again if necessary.
• The RedLINK™ connection has been securely
established once you see the solid green light.
1. Press and release the CONNECT button on the receiver.
2. Make sure the receiver is in wireless setup mode (connect LED is slowly flashing green). If the
CONNECT light does not flash, another receiver or a RedLINK™ Wireless Receiver may be in
wireless setup mode. Exit wireless setup mode at the other device.
3. Press and release the CONNECT button on the IAS.
4. When pairing starts, the CONNECT lights on the IAS and the receiver will both be fast flashing
green.
5. After successfully completing enrollment, the CONNECT light on the IAS will be solid green for a
short period of time and then turn off.
6. Check for the IAS option in the temperature source and humidity source from the controller.
Notes:
• Your controller can only use one IAS.
• When the IAS light is solid red, it may have failed to enroll or has disconnected. Please
reenroll and check the distance between the IAS and the receiver.
Indoor Air Sensor (IAS)
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6
Link Remote Controller to RedLINK™ Receiver
Note: In most homes, the Remote Controller can
connect at distances of 200 feet. Try to avoid walls
or other blockages, but they should not affect
RedLINK signal.
1. Press SELECT to establish a link to the RedLINK™
receiver.
2. In less than 30 seconds, the link between the MHK2
Controller and RedLINK receiver will be established;
showing "Success" on the display.
3. Press DONE to display the home screen.
4. The MHK2 Controller will display a "WAIT" screen
while it receives data from the indoor unit. While on the
"WAIT" screen:
• If the controller shows the RedLINK™
disconnected icon at the top-right, the
controller has lost connection with the receiver.
• If the controller shows the RedLINK™ connected
icon , the controller is connected to the receiver.
• To unenroll the receiver, press and hold the
bottom-center of the controller's screen for
5 seconds. The controller will then unenroll all
RedLINK™ connections.
Exit RedLINK™ Setup
Press and release the CONNECT button on the RedLINK™ receiver to exit wireless setup (light
should stop flashing and remain solid).
Note: The RedLINK™ Wireless Receiver will automatically exit wireless setup after 15
minutes of inactivity.
Note: If installing more than one receiver, you must exit RedLINK™ setup on the previous
receiver before attempting wireless setup of subsequent controllers/receivers.
CONNECT RECE CONNECTING
SUCCESS
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7
Unenroll Device:
Remove a connected
receiver or controller.
Reset: Access all reset
options on the MHK2
Controller. This is the
only place to access factory reset.
Alert History: Alert History saves the
last 25 alerts. Once the list is full, the
oldest alert will be kicked out.
Initial Installer Setup
After the MHK2 Controller has communicated
with the indoor unit correctly, MHK2 Controller will
change from the "Wait" screen to the "Initial Installer
Setup" screen and show START SETUP.
1. The MHK2 will search for support of indoor unit
function codes. If it finds indoor unit support, the
controller will load the Function Code setup. If
the controller does not find indoor unit support,
the controller will load the Installer Set Up (ISU).
See page 10 for a full list of ISU options.
2. Touch or to toggle between Function
Code/ISU options.
3. Touch Edit or touch the text area, and then
touch or to edit default setup options.
4. Touch Done or touch the text area to confirm the
setting or press Cancel.
5. Touch or to continue to setup another ISU
option.
6. To finish setup and save your settings, scroll to
the FINISH SETUP screen at the end of the ISU
list.
Note: To see a list of all setup parameters,
go to "Installer Setup Options (ISU) –
Advanced Menu" on page 10. The MHK2
Controller displays the ISU name and the
ISU number.
Edit ISU
ISU #
ISU option blinking
Cancels ISU option
selection, go back to
view ISU
Arrow buttons
used to scroll
through ISU
options
Saves selected ISU
option moves on to
the next ISU screen
View ISU
ISU option and
name (scrolling) Arrow buttons used to scroll
through ISUs
Installer Setup – Advanced Menu (After Initial Installation)
Advanced Menu Options
Function Codes: This is used to access the device
Function Code settings.
Device Setup: This is used to access the device
ISU settings.
Screen Lock: The controller touch screen can be
set to partially or fully lock. Partial lock allows tem-
porary overrides. Full lock will not allow any over-
rides. You will always have the option to unlock the
device.
System Test: Test the wireless communications or
heating and cooling equipment.
To access the advanced menu, press and hold the Menu button for 5 seconds.
Touch or to go through the options in the advanced menu.
Home
HeatHeat Auto
VaneVane
72
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M-Series & P-Series Indoor Unit Function Codes
Mode # Indoor Unit Compatibility Function Setting # Settings
1All Power Failure Auto Recovery 1Not available (OFF)
2 *1-1 Available (ON ) approximately 4 minute delay
2All Indoor Temperature Detection
1Average data from all unit 2Return air
3 *2-1 Remote Controller
3All Lossnay Connectivity
1Not supported 2IDU does not intake OA through Lossnay 3IDU does intake OA through Lossnay
4All Power Supply Voltage 1230 volt
2208 volt
5PEAD Auto Mode 1Energy saving cycle automatically enabled
2Energy saving cycle automatically disabled
7All Filter Sign
1100 hours 22500 hours 3No filter sign indicator
8
*D SLZ/PLA
PCA/PKA Air Flow (Fan Speed)
1Quiet 2Standard 3High ceiling
8
*D SEZ/SVZ/PEAD/PVA Static Settings See "Static Pressure Settings" on page 12.
9PLA Number of Air Outlets
14 directions or all 4 23 directions or just 3 32 directions or just 2
10
*D PLA
PCA High Performance Filter Also Static
Settings 1Not supported
2Supported
10
*D SEZ/SVZ/PEAD/PVA Static Settings See "Static Pressure Settings" on page 12.
11
*D PLA Horizontal Vane Setting
1Downward setting (vanes angle setup 3) 2Middle setting (vanes angle setup 1)
Draft less setting (vanes angle setup 2) *11
11
*D SLZ
PCA Horizontal Vane Setting
1No setting 2Draft less setting (vane angle setup 1)
Downward setting (vanes angle setup 2)
11
*D SVZ/PEAD/PVA Heater Control (Used with Mode 23) 1No heater present
2Heater available
12 SLZ-KF/
PLA-A__EA7 3-D i-See Sensor Positioning
*12-1 *12-2
1Position 1 2Position 2 3Position 3
13 SVZ/PVA Optional Humidifier 1Not supported
2Supported
14 PLA
PCA/PKA Vane Differential Setting in Heating Mode
(Cold Wind Prevention)
175-82 °F TH5 282-90 °F TH5 390-100 °F TH5
15 SLZ/PLA
SEZ/SVZ/PEAD PCA/PKA Frost Prevention Temp 1(2 °C) 36 °F
2(3 °C) 37 °F
Note: Default settings for Function Codes 1-28 are automatically determined by the HVAC equipment. It may take up to 40 seconds to enter setup and 30 seconds to exit setup. Please refer to the indoor unit manual for unit specific function codes and the description of their values. A summary is shown in the following tables.
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Mode # Indoor Unit Compatibility Function Setting # Settings
16 SVZ/PVA Humidifier Control 1With compressor only
2In Heat mode all the time
17 PLA
PCA/PKA Change of Defrosting Control 1Standard
2High humidity
23
*D PLA-BA Vane Swing 1Swing
2Wave air flow
23
*D PCA/PKA Vane Swing 1Not available (OFF)
2Available (ON)
23
*D SLZ
SEZ Heater Control *23-1 1Set temp -4.5 °F ON
2Set temp -1.8 °F ON
23
*D SVZ/PEAD/PVA Heater Control *23-1 1Disable heater during Defrost/Error
2Enable heater during defrost and error *23-2
24 SLZ/PLA
SEZ/SVZ/PEAD PCA/PKA *24-1 Heating Height Offset 4 1Available (ON) 4 °C (7.2 °F) up
2Not available (OFF)
25 SLZ/PLA
SEZ/SVZ/PEAD/PVA PCA/PKA Fan Speed Thermo-Off Heating
1Extra low 2Stop 3RC setting
26
*D SLZ-KF/PLA-A__EA7 3D i-See Sensor Height Offset Setting
*12-1 *12-2
1Low (less than 8.9 feet) 2Standard (8.9 to 11.5) 3High (11.5 to 14.8)
26
*D SVZ Erv Control 1IDU STOP, fan speed STOP, and CN2C is OFF
2IDU STOP, fan speed is RC Setting, and CN2C is ON
27 SLZ/PLA
SEZ/SVZ/PEAD PCA/PKA Fan Speed Thermo-Off Cooling
1RC setting 2Stop 3Extra Low *27-1
28 SLZ/PLA
SEZ/SVZ/PEAD PCA/PKA
Detection of Abnormal of the Pipe Temperature (P8)
1Available (ON) 2Not Available (OFF)
M-Series & P-Series Indoor Unit Function Codes
Notes: *D Duplicate code with multiple settings for different indoor unit types. *1-1 When the power supply returns, the air conditioner will start 3 minutes or 1 minute later (hinge on outdoor unit). *2-1 Can be set only when a wired or RedLINK Remote Controller is used. *11 Because condensation may form, do not use this setting in a high-temperature, high-humidity environment. *12-1 Cassette must have 3D i-See Sensor installed to operate, refer to install manual. *12-2 When the 3D i-See Sensor corner panel position is changed, change this mode. *23-1 For the detail of heater control, refer to the service manual. *23-2 Heater will only operate during a communication error between indoor unit and outdoor unit. *24-1 PKA-HA(L)/KA(L): 3.6°F (2°C) up. *27-1 Only SLZ and PLA are able to set this setting.
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Installer Setup Options (ISU) – Advanced Menu
ISU # ISU Name ISU Options (defaults in bold) Notes
134 Central Controller
Present • Not installed
• Installed
The control determines the correct setting based on whether the central controller was linked to the system. If the central controller is installed in the system, then the device will function as a non-programmable device and only single setpoint will be supported.
139 Fahrenheit
Celsius • Fahrenheit
• Celsius
142 System Type • Heat pump (Heat & Cool)
• Cool only The control determines the correct setting based on the equipment the receiver is
plugged into.
144 Auto Changeover
• Manual Changeover (MANUAL) • Auto Changeover (ACO) • Auto Changeover Single Setpoint (Single SP)
If ACO is selected, system mode options will be Heat, Off, Cool, and Auto. If MANUAL is selected, AUTO mode is disabled during operation and not selectable by the user. This ISU setting is not shown when ISU 134 is set to INSTALLED or ISU 142 is set to COOL ONLY. MANUAL and ACO settings are shown if ISU 134 is set to NOT INSTALLED. SINGLE SP is defaulted if ISU 134 is set to INSTALLED. MANUAL and ACO options are suitable for use with kumo cloud®and a Wireless Interface.
145 Deadband • 3to 8 °F (in 1 °F increments)
• 2.0 to 4.5 ° C (in .5 °C increments) This ISU is shown if Auto Changeover (ACO) is selected.
146 Drying Mode • Disabled
• Enabled This ISU is shown if dry mode is supported by the indoor unit.
150 Schedule Owner
• The MHK2 alone can be used to establish a schedule • kumo cloud®alone can be used to
establish a schedule
This ISU is not shown if the MHK2 is NOT connected to a Wireless Interface 2 or later model.
151 Schedule Type
• No schedule • Mo-Su • Mo-Fr/Sa-Su • Mo-Fr/Sa/Su • M/T/W/T/F/S/S
152 Schedule Off Periods • Disabled
• Enabled If disabled, Schedule Power Off in schedule mode cannot be used.
153 Residential/
Commercial Schedule
• Residential • Commercial
When set for Residential, the schedule periods are Wake, Leave, Return, Sleep. When set for Commercial, the schedule options are Occupied and Unoccupied.
161 Lockout System On • Disabled
• Enabled
If enabled, the controller will show a lock symbol at the bottom of the screen and not allow the user to adjust the mode from off to on. If the user attempts to adjust the mode from off to on, the lock symbol will flash. This will keep the Remote Controller from turn- ing on the equipment. The equipment will need to be remotely turned on.
162 Lockout System Off • Disabled
• Enabled If enabled, the controller will show a lock symbol at the bottom of the screen and not
allow the user to adjust the mode from on to off.
163 Lockout Mode • Disabled
• Enabled
If enabled, the controller will show a lock symbol at the bottom of the screen and not allow the user to adjust the mode from the current mode to any other mode, except for Off. If the user attempts to adjust the mode, the lock symbol will flash. The user will still be able to turn the unit on and off only.
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ISU # ISU Name ISU Options (defaults in bold) Notes
164 Lockout Fan Speed • Disabled
• Enabled If enabled, the controller will show a lock symbol at the bottom of the screen, and if the
user attempts to modify the fan setting, the lock symbol will flash.
165 Lockout Setpoint • Disabled
• Enabled
If enabled, the controller will show a lock symbol at the bottom of the screen and “Partial Lock” in the user menu will be hidden. If the user attempts to modify the setpoint, the lock symbol will flash and keep the current setpoint.
167 Lockout Vane
Direction • Disabled
• Enabled If enabled, the controller will show a lock symbol at the bottom of the screen, and if the
user attempts to modify the vane direction, the lock symbol will flash.
170 Hide Indoor
Temperature • Disabled
• Enabled If enabled, indoor temperature is not shown in the display.
171 Hide Indoor
Humidity Display • Disabled
• Enabled If enabled, indoor humidity is not shown in the display.
180 Max Heat Setpoint • 40 to 90 °F (4.5 to 32.5 °C)The Max Heat Setpoint can be adjusted to any whole number between 40 and 90 °F, as
well as half increments between 4.5 and 32.5 °C.
181 Min Cool Setpoint • 50 to 99 °F (10 to 37 °C) The Min Cool Setpoint can be adjusted to any whole number between 50 and 99 °F, as
well as half increments between 10 and 37 °C.
190 Indoor Temperature
Source
• MHK2 • Indoor unit • RedLINK™ sensor • Average of MHK2 and RedLINK™ sensor (IAS)
Options 2 and 3 not shown if the RedLINK™ Indoor Air Sensor is not enrolled. MHK2: The MHK2 built-in thermistor (default). RedLINK™ Sensor: A RedLINK™-connected wireless indoor temperature/humidity sen- sor. Average: An average of the MHK2 sensor and RedLINK™-connected wireless indoor temperature/humidity sensor. Averaging does not work with the kumo cloud® bluetooth wireless temperature and humidity sensor.
191 Indoor Temperature
Display Offset • -5 °F to 5 °F (-2.5 °C to 2.5 °C) The Indoor Temperature Display Offset can be adjusted to any whole number between -5
and 5 °F, as well as half increments between -2.5 and 2.5 °C. 0 is the default.
195 Indoor Humidity
Source
• MHK2 • RedLINK™ sensor • Average of MHK2 and RedLINK™ sensor (IAS)
Options 1 and 2 will not be shown if the RedLINK™ Indoor Air Sensor is not enrolled. MHK2: The RedLINK™ Sensor thermistor (default). RedLINK Sensor: A RedLINK™-connected wireless indoor temperature/humidity sensor. Average: An average of the RedLINK™ Sensor and RedLINK™-connected wireless indoor temperature/humidity sensor. Averaging does not work with the kumo cloud®bluetooth
wireless temperature and humidity sensor.
196 Indoor Humidity
Display Offset • -10% RH to 10% RH The Indoor Humidity Display Offset can be adjusted to any whole number between -10
and 10 RH. 0 is the default.
Installer Setup Options (ISU) – Advanced Menu
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PEAD-AA
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
35 Pa 2 1
50 Pa 3 1
70 Pa 1 2
100 Pa 2 2
125 Pa 3 2
SEZ
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
5 Pa (0.02 in. WG) 1 2
15 Pa (0.06 in. WG) 1 1
35 Pa (0.14 in. WG) 2 1
50 Pa (0.20 in. WG) 3 1
SVZ - Vertical, Horizontal Left &
Right
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
0.3 in. WG (75 Pa) 1 1
0.5 in. WG (125 Pa) 2 1
0.8 in. WG (200 Pa) 3 1
* Regarding to down flow setting, please refer to down flow kit
installation manual.
Static Pressure Settings
SVZ -Downflow
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
0.3 in. WG (75 Pa) 1 2
0.5 in. WG (125 Pa) 2 2
0.6 in. WG (200 Pa) 3 2
PVA - Vertical, Horizontal Left &
Right
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
0.3 in. WG (75 Pa) 1 1
0.5 in. WG (125 Pa) 2 1
0.8 in. WG (200 Pa) 3 1
* Regarding to down flow setting, please refer to down flow kit
installation manual.
PVA - Downflow
External Static
Pressure
Setting No.
Wired or RedLINK
Remote Controller
Mode No. 8 Mode No. 10
0.3 in. WG (75 Pa) 1 2
0.5 in. WG (125 Pa) 2 2
0.8 in. WG (200 Pa)* 3 2
*PVA-A42 in Downflow External Static pressure: 0.70.
Vane Settings
Mode No. 11
Setting No. PLA-EA SLZ-KF PCA-KA
1Downward setting (vanes angle setup 3) Not setting No vanes
2Middle setting (vanes angle setup 1) Draft less (vanes angle setup 1) (Vanes angle setup 1)
3Draft less (vanes angle setup 2) Downward setting (vanes angle setup 2) (Vanes angle setup 2)
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Performing a System Test
You can test the system setup in ADVANCED MENU
under SYSTEM TEST option.
1 Press and hold Menu on the controller for 5
seconds to access ADVANCED MENU options.
2 Touch or to go to SYSTEM TEST.
3 Touch Select or touch text area.
4 Touch or to select system test type. Touch
Select or the touch text area.
5 For the Heat Test and Cool Test use
or to activate equipment.
Note: The clock is used as a timer while
Heat or Cool is running. The Heat and Cool
indicators are displayed when the system test
is running.
kumo cloud®
Connecting to the kumo cloud®:The Wireless Interface 2 or later must be installed and
configured with the kumo cloud app before continuing with the startup of the MHK2.
Automatic Setting of Time Provided by the Wireless
Interface
When a Wireless Interface is present, the MHK2 Controller will operate using the time and date the
Wireless Interface receives from the Internet. In the event of a system power outage, the MHK2
Controller’s time and date setting will be independent until such time as the Wireless Interface
regains an Internet connection. At that point, the MHK2 Controller will again match the Wireless
Interface’s Internet-acquired time and date.
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14
HeatHeat Auto
VaneVane
72
ModeMode MenuMenu FanFan
Key Features
Note: The screen will wake up by pressing the center area of the displayed temperature.
The screen will stay lit for 10 seconds.
System Status Information
Cool On, Heat On, Standby.
Schedule Information
Following time-based
temperature control.
Desired Temperature
Displays the current desired
temperature setting.
Indoor Temperature
Displays the current indoor
temperature.
Indoor Temperature
Reminder:
The indoor temperature
display will show the
temperature from the indoor
unit, the MHK2 controller,
indoor air sensor(s), or an
average of all them. You
confirm and configure this
setting during installation
setup.
Vane
Touch to select air direction:
Auto, Swing, Ceiling, High,
Middle, Low, Floor.
Mode
Select system Mode: Heat,
Cool, Dry, Fan, Auto, Off.
Lock
Indicates the screen is
locked: Full Lock, Partial
Lock, and ISU-based locks.
Full and Partial Lock can be
unlocked with a PIN.
RedLINK™ Wireless
Communication Status
Indicates if the controller is
connected to the RedLINK™
interface and communicating
correctly.
Connection Status
Information
Indicates if the MIFH2
RedLINK™ Wireless Receiver
is connected to the Mitsubishi
Electric Wireless Interface 2
and kumo cloud
®
.
Messaging
Shows device setup options,
menu options, reminders,
schedule overrides.
Schedule Period
Shows schedule period: Wake,
Leave, Return, Sleep.
Fan
Select Fan speeds: Auto, 1-5.
Menu
Touch to display options.
Start here to set a program
schedule.
Note: Long press the Menu
button for 5 seconds to
access Advanced Menu
options.
Time, ISU #,
or Alert #
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15
RedLINK™ Error Codes
134 Weak signal. Move wireless device to a different location and try again.
137 Maximum number of clients reached.
153 Timeout.
Note: If any other error codes are given on the screen of MRCH2, please contact
customer service.
Replacing System Components
Note: Only use Mitsubishi Electric components or other designated components for
installation. Failure to comply may damage the product or cause a hazardous condition.
RedLINK™ Wireless Remote Controller
To replace a RedLINK™ Wireless Remote Controller, install batteries, affix to wall plate, and follow
the procedures on page 6 to link it to the RedLINK™ network. If necessary, modify settings as
needed (see tables on pages 10–11).
RedLINK™ Wireless Receiver
After installing a new RedLINK™ Wireless Receiver, you must unenroll the RedLINK™ Wireless
Remote Controller so it can communicate with the new RedLINK™ Wireless Receiver, as
described below.
There are three ways to unenroll the RedLINK™ Wireless Remote Controller from the old
RedLINK™ Wireless Receiver:
• Press and hold the Menu button for 5 seconds to enter the Advanced Menu. Touch or to
select UNENROLL DEVICE. Touch Select. Connect the new RedLINK™ Wireless Receiver.
• Enter the Advanced Menu. Touch or to select RESET. Touch Select. Touch or to
select FACTORY. Touch Select. Touch Yes to confirm. Connect the new RedLINK™ Wireless
Receiver.
• If the RedLINK™ Wireless Remote Controller is on the "Wait" screen, press and hold the
bottom-center of the screen for 5 seconds. Connect the new RedLINK™ Wireless Receiver.
To remove all RedLINK™ devices:
1. Press and hold the CONNECT button on the RedLINK™ Wireless Receiver for 10 seconds.
2. To reconnect, see procedure on page 6.
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16
The operation of this equipment is subject to the following two conditions: (1) this equipment or
device may not cause harmful interference, and (2) this equipment or device must accept any
interference, including interference that may cause undesired operation.
Regulatory Information
FCC Compliance Statement (Part 15.19) (USA Only)
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1 This device may not cause harmful interference, and
2 This device must accept any interference received, including interference that may cause
undesired operation.
FCC Warning (Part 15.21) (USA Only)
Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
FCC Interference Statement (Part 15.105 (b)) (USA Only)
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio
or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Wireless Receiver and MHK2 Remote Control
To comply with FCC and Industry Canada RF exposure limits for general population/ uncontrolled
exposure, the antenna(s) used for these transmitters must be installed to provide a separation
distance of at least 20 cm from all persons and must not be co-located or operating in conjunction
with any other antenna or transmitter.
Section 7.1.3 of RSS-GEN
Operation is subject to the following two conditions:
1 This device may not cause interference, and
2 This device must accept any interference, including interference that may cause undesired
operation of the device.
Section 7.1.2 of RSS-GEN
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of
type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce
potential radio interference to other users, the antenna type and its gain should be so chosen that
the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful
communication.
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kumo cloud is a registered trademark of Mitsubishi Electric
US, Inc.
All other product names mentioned herein are trademarks
or registered trademarks of their respective owners.
® U.S. Registered Trademark.
© 2019 Mitsubishi Electric US, Inc.
Suwanee, GA 30024
33-00446EFS—04 M.S. Rev. 10-19
Printed in Mexico
33-00446EFS-04
Specifications
Operating Ambient Temperature
• Remote Controller: 32 to 120 °F (0 to 48.9 °C)
• Wireless Receiver: -40 to 165 °F (-40 to 73.9 °C)
Operating Relative Humidity
• Remote Controller: 5% to 90% (non-condensing)
• Wireless Receiver: 5% to 95% (non-condensing)
Physical Dimensions (Height, Width, Depth)
• Remote Controller: 4-5/64" x 4-5/64" x 1-1/16" (104 mm x 104 mm x 27 mm)
• Wireless Receiver: 3-3/32" x 1-3/4" x 39/64" (74.8 x 44.4 x 15.4 mm)
ADA Compliance
Please consult chapter 3 section 309 of the United Sates Access Board.
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