mitsubishitechinfo RMF-CMX100-V1 Commax Interface Owner’s Manual

mitsubishitechinfo RMF-CMX100-V1 Commax Interface

Product Information

Specifications

• Product Name: RMF-CMX100-V1 Commax Interface
• Document Version: 1.0.0 – 1.0.1
• Firmware Version: 1.0.0 – Nov-9-22
• Compatibility:
  • Firmware Version 1.0.0
  • Indoor Unit Model Numbers: PVFY-P-NAMU-E (& later versions), PEFY-P-NMAU-E (& later versions), SEZ-KD(NA4)
  • Outdoor Unit Model Numbers: Not Applicable, SUZ-KA(NA/NAHZ)

Product Usage Instructions

Safety Precautions

Attention – Incorrect handling can result in electrical injury, device malfunction, and damage. Thoroughly read the following safety precautions before each use of this product.

Warning: The power supply to the indoor unit must be removed when configuring DIP switch settings and when connecting/disconnecting the CN105 connector to the indoor unit board.

Before connecting the RMF-CMX100-V1 to the other devices, set the DIP switch positions by removing the four screws on the back of RMF-CMX100-V1.

FAQ

• Q: What should I do if I encounter issues with communication between the RMF-CMX100-V1 and the Commax controller?
• A: Check the DIP switch settings and ensure the power supply to the indoor unit is disconnected before troubleshooting communication issues.

Supplied Parts

• RMF-CMX100-V1 (Quantity – 1)
• Installation Manual (Quantity – 1)

Amendment Register

Document version

|

Firmware Version

|

Date

|

Author

|

Notes

---|---|---|---|---
1.0.0| 1.0.0| 1/9/2020| FM| Initial version of firmware V1.0.0
1.0.1| 1.0.0| Nov-9-22| MD| -Added compatibility and mode setting charts for

SEZ-KD & SUZ-KA

Firmware Revision History

Document version

|

Firmware Version

|

Date

|

Author

|

Notes

---|---|---|---|---
1.0.0| 1.0.0| 1/9/2020| FM| Initial version of firmware V1.0.0

Compatibility

Firmware Version

|

Indoor Unit (Model Number)

|

Outdoor Unit (Model Number)

|

Notes

---|---|---|---

1.0.0

| PVFY-P-NAMU-E

(& later versions)

PEFY-P-NMAU-E

(& later versions)

|

Not Applicable

|
SEZ-KD(NA4)| SUZ-KA(NA/NAHZ)|

Safety Precautions

ATTENTION – INCORRECT HANDLING CAN RESULT IN ELECTRICAL INJURY, DEVICE MALFUNCTION AND DAMAGE

THOROUGHLY READ THE FOLLOWING SAFETY PRECAUTIONS BEFORE EACH USE OF THIS PRODUCT (THE “DEVICE”).

• Do not expose the device to, or immerse the device in, water. Doing so could lead to electrical shock to a person, device malfunction or device damage.
• Do not install the device in a bathroom, kitchen, or any room where high humidity or steam could form. Condensation could develop on or around the device and cause electrical shock to a person, device malfunction and device damage.
• Do not install the device in a location where a gas leak could occur.
• Do not expose the device to heat or radiation, including direct sunlight, or install the device in a location where the temperature could be greater than 40°C (104°F) or less than 0°C (32°F). This could result in device deformation or device malfunction.
• Always ensure the device is installed in an area without exposure to high-frequency noise.
• Power generators, inverters, and high-frequency or radio communication equipment may interfere with the operation of this device.
• All electrical work should be performed by a qualified technician and under applicable laws and instructions outlined in this manual.
• Use standard wiring with the proper current capacity to avoid current leaks, excessive heat, and fire.
• Use only specified cables and wiring; securely connect each so that the terminals do not bear any weight.
• Include slack in the power supply wiring. Tension in the wiring may cause it to excessively heat up and break, which could result in a fire.
• Improperly connected or short-circuited cables or wiring may produce heat and cause device malfunction, device damage, and fire.
• Capacity shortage to the power supply circuit or improper installation may result in electrical shock or fire.
• Do not modify or alter this device or cable in any manner whatsoever.

Warning

• To avoid danger or suffocation, safely dispose of the packing materials and keep them away from children.
• Packing materials, such as nails and other metal or wooden parts, may cause injuries.

Configuration Instructions

Note: The power supply to the indoor unit must be removed when configuring DIP switch settings and when connecting/disconnecting the CN105 connector to the indoor unit board.
Before connecting the RMF-CMX100-V1 to the other devices, set the DIP switch positions by removing the four screws on the back of RMF-CMX100-V1.

1. DIP Switch SW1-6 is used for overriding the ON/OFF setting to the indoor unit. Please reference Table 4.1 below for SW1-6 descriptions.
2. Address setting is required for communication with the Commax controller. Please reference Table 4.2 below for DIP switch positions SW1-1 to 4 for the device address setting of the interface board.

Table 4.1

DIP Switch SW1 Description

(DIP Switch position is represented as black [ ])

SW1-6| Definition
| The indoor unit ignores the ON/OFF command from the Commax controller.
| The Commax controller controls the indoor unit’s ON/OFF setting. (Default)

Table 4.2

Wiring Instructions

Note: Do not proceed to the wiring section of this manual until the DIP switch settings have been set and power to the indoor unit is removed.
Step 1: Connect the interface board (B) to the Commax controller (C) using an RS-485 wire <200ft.
Step 2: Connect the interface board (A) to the indoor unit control board (D) using the 4-foot CN105 cable.

Legend

Symbol| Connector / Terminal| Location of Connector
A| CN105-1| RMF-CMX100-V1 (Interface board)
B| RS-485| RMF-CMX100-V1 (Interface board)
C| LAN| Commax Controller
D| CN105| Mitsubishi Electric Indoor Unit Control Board

Step 3: Supply power to the indoor unit and confirm green LED is flashing at the rate of approximately 0.5Hz. If the LED does not flash, power down the indoor unit, disconnect the interface board from the system and repeat steps 1 and 2. If the LED does not light, replace the Interface board.

Mode Settings Chart

Note: MA/PAR Mitsubishi Controller must be connected to the indoor unit to access the settings. Function settings must be properly configured before the system starts.
For more information on mode settings procedures visit www.mitsubishitechinfo.ca.

SEZ UNIT FUNCTION SETTINGS

Definition| Mode| Setting #| Setting Description
Power Failure Auto Restart| 1| 1| Disabled
| 2| Enabled
Static Settings| 08 & 10| | See Static Pressure Settings Below
Frost Prevention Temp| 15| 1| 2°C (36°F)
2| 3°C (37°F)
Heater Control| 23| 1| Set Temp-2.5°C ON
2| Set Temp-2.5°C ON & Enable Heater During Defrost/Error
Heating Height Offset 4°C| 24| 1| Available (ON) 4°C (7.2°F) UP
2| Not Available (OFF)
Fan Speed Thermal-Off (Heating)| 25| 1| Extra Low
2| Stop
3| RC Setting
Fan Speed Thermal-Off (Cooling)| 27| 1| RC Setting
2| Stop
Abnormal Pipe Temperature

Detection (P8)

| 28| 1*| Available (ON)
2| Not Available (OFF)

• Factory Default Setting

External Static Pressure Setting for SEZ

External Static Pressure| Setting No. of Mode 08| Setting No. of Mode 10
---|---|---
0.02 in. WG [5Pa]| 1| 2
0.06 in. WG [15Pa]| 1| 1
0.14 in. WG [35Pa]| 2| 1
0.20 in. WG [50Pa]| 3| 1

RMF-CMX100-V1_1.0.1 © Mitsubishi Electric Sales Canada Inc. All rights reserved.

References

• MESCA Technical Information Center

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