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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

33-00446EFS_B.indd   1

10/17/2019   3:08:58 PM

Summary of Contents for MHK2

Page 1: ...shi 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 ...

Page 2: ...d 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 ...

Page 3: ...ith 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 ...

Page 4: ... 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 ...

Page 5: ...cessary 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 ...

Page 6: ...t 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...

Page 7: ...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 ...

Page 8: ...d 2 Supported 10 D SEZ SVZ PEAD PVA Static Settings See Static Pressure Settings on page 12 11 D PLA Horizontal Vane Setting 1 Downward setting vanes angle setup 3 2 Middle setting vanes angle setup 1 Draft less setting vanes angle setup 2 11 11 D SLZ PCA Horizontal Vane Setting 1 No setting 2 Draft less setting vane angle setup 1 Downward setting vanes angle setup 2 11 D SVZ PEAD PVA Heater Contr...

Page 9: ...U STOP fan speed is RC Setting and CN2C is ON 27 SLZ PLA SEZ SVZ PEAD PCA PKA Fan Speed Thermo Off Cooling 1 RC setting 2 Stop 3 Extra Low 27 1 28 SLZ PLA SEZ SVZ PEAD PCA PKA Detection of Abnormal of the Pipe Temperature P8 1 Available ON 2 Not 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 powe...

Page 10: ...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 schedu...

Page 11: ... 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...

Page 12: ...er 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 Settin...

Page 13: ...s 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 ...

Page 14: ...ir 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 Indic...

Page 15: ...eless 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 R...

Page 16: ...uipment 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 w...

Page 17: ...ns 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...

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