Mitsubishi RMF-CA200-V1 Service manual

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RMF-CA200-V1 Thermostat Interface
INSTALLATION / INSTRUCTION MANUAL Read prior to installing/operating device. Keep this manual for future reference .
1. Supplied Parts. .............................................................................. 1
2. Safety Precautions. ....................................................................... 1
3. Installation ......................................................................................... 1
4. System Configuration ........................................................................ 3
5. Operator Instructions ..................................................................... 3
RMF-CA200-V1 Thermostat Interface (1), Manual (1)
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 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). Doing any of these things 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 qualitied technician and in accordance with applicable laws and theinstructions outlined in
this manual.
• Use standard wiring with the proper current capacity to avoid current leak, 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.
Thermostat may be configured to operate in conventional or heat pump modes. Use 18 AWG thermostat wire for all connections.
• Wire connection terminals support 20-30VAC.
• G1, G2, G3 Thermostat fan signals are not supported.
• The default fan speed can be set to high, medium, low and quiet speeds using dipswitches. While in FAN mode (only G signal active)
the Mitsubishi Electric indoor unit wireless remote controller can be used to adjust the fan speed from the initial default setting to any
other fan speed. The RMF-CA200 will retain the new settings until the unit is power cycled at which point it will resume with default
dipswitch speed setting.
• The default vane position can be set by using dipswitches. The default vane position can be changed by using the Mitsubishi Electric
indoor unit wireless remote controller to any other desired vane. The RMF-CA200 will retain the new vane position until the unit is
power cycled at which point it will resume with default dipswitch vane setting.
• In Conventional or HEATPUMP mode, during HEAT mode auxiliary convectional heater control is provided by Mitsubishi CN24
connector on indoor units that have CN24 connector and is preferred method. The CN24 connector outputs 12VDC at 80mA. For
units without CN24 connector, Auxiliary convectional heater control is provided by RMF-CA200-V1 output signal O which outputs
24VAC when active.
SINGLE or 2 STAGE OPERATION MODE SELECTION
1. Select 1 or 2 stage thermostat operation using dipswitch 1-1:
OFF position (default) Configured for 2 stage heating and cooling thermostats (Y1, Y2 & W1, W2)
ON position Configured for use with single stage heating / cooling thermostats (Y1, W1)
2. Select Conventional or Heat Pump Mode using Dipswitch 1-2
Contents
1. Supplied Parts
2. Safety Precautions
WARNING‐INCORRECTHANDLINGCANRESULTINELECTRICALINJURY,DEVICEMALFUNCTIONANDDAMAGE
3. Installation

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OFF position (Default) Default OFF position configures conventional mode, ON position enables Heat Pump mode
Example 1: Conventional Two-Stage Cooling and Heating -
Dipswitch 1-1 set to OFF position (default position) RMF-CA200-
V1 operates in dual stage heat / cool mode using thermostat signals W1, W2, Y1, Y2, and fan signal (G). G1, G2 and G3 are
available but not required.
Example 2: Single-Stage Operation- Dipswitch 1-1 set to ON position
If Y2 or W2 is left unconnected or is unavailable from the thermostat
set
SW1-1 to the ON position. This configures single stage operation of
RMF-CA200-V1 simulating multiple stage operation using temperature
differential based on W1 / Y1 call and run time.
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Example 3: Heat Pump Mode Operation -
Dipswitch 1-1 set to ON position
If Y2 or W2 is left unconnected or is unavailable from the thermostat
set
SW1-1 to the ON position. This configures single stage operation of
RMF-CA100-V1 simulating multiple stage operation using temperature
differential based on W1 / Y1 call and run time.
Conventional Mode Connector Pin Layout
Pin Signal Description
1 TC Common (IN) Transformer
2 C Common (Out) To Thermostat
3 TR 24 VAC (IN) Transformer
4 R 24 VAC (IN) Thermostat
5 Y2 Stage 2 Cooling
6 Y1 Stage 1 Cooling
7 W2 Stage 2 Heat
8 W1 Stage 1 Heat
9 W3 Stage 3 Heat
10 G Fan
11 O Stage 4 Heat
12 EO Error Output (Out)
InsinglestageoperationY2,W2and
W3signalsarenotused.

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DIP Switch
On the PCB, there is a 10-position DIP switch for configuration setting. Each position
has two states: ON or OFF. The DIP switch inputs are identified by their reference
designator on the PCB followed by their switch position.
3. Set appropriate dipswitches:
DIPSWITCH BANK 1
1. The device provides two mounting holes to mechanically affix the case to a solid surface. Double-sided tape may be used to affix
the device. When using tape, ensure that the tape is approved for use within the anticipated operating temperature ranges.
2. Install the transformer as per Canadian Electrical Code, Canadian building code and local codes compliance, and manufacturer’s
installation instructions.
3. Connect the RMF-CA200-V1 cable to the connector CN105 on the indoor unit control board.
Device Configuration:
Heat Pump Mode Connector Pin Layout
Pin Signal Description
1 TC Common (IN) Transformer
2 C Common (Out) To Thermostat
3 TR 24 VAC (IN) Transformer
4 R 24 VAC (OUT) to Thermostat
5 Y2 Heat Pump Stage 2 Heat/Cool
6 Y1 Heat Pump Stage 1 Heat/Cool
7 AUX1 N/A
8 OB Heat pump Heat / Cool mode
9 AUX2 Stage 4 Heat
10 G Fan
11 O Stage 3 Heat (Out)
12 EO Error Output (Out)
# Input Description (Factory Default - all switches are placed in the OFF position )
1 SW1-1 If ON enable single stage heat / cool operation, default OFF (dual stage W1, W2 & Y1, Y2 ) operation
2 SW1-2 Conventional (default OFF ) or Heat Pump ( ON ) mode selection
3 SW1-3
Defines default fan speed when thermostat G signal is active
a) LOW: SW1-3 is OFF , SW1-4 is OFF (default)
b)
MEDIUM: SW1-3 is OFF , SW1-4 is ON
c)
HIGH: SW1-3 is ON , SW1-4 is OFF
d)
QUIET: SW1-3 is ON , SW1-4 is ON
4 SW1-4
5 SW1-5
Simulated 2
nd
stage heat / cool mode during single stage operation is defined by continuous Y1 / W1 call time:
and auxiliary heat ouput signal (O) time delay
SW1‐5SW1‐6SimulatedLogicDelayOSignalDelay
OFFOFF10Minutes(Default)2.5Minutes(Default)
OFFON5Minutes5Minutes
ONOFF15Minutes7.5Minutes
ONON20Minutes10Minutes
6 SW1-6
7
SW1-7
SW1-8
SW1-9
Default vane position on power up
a) Automatic: SW1-7
OFF , SW1-8 OFF , SW1-9 OFF
b) Position 1: SW1-7
ON , SW1-8 OFF , SW1-9 OFF
c) Position 2: SW1-7
OFF , SW1-8 ON , SW1-9 OFF
d) Position 3: SW1-7
ON , SW1-8 ON , SW1-9 OFF
e) Position 4: SW1-7
OFF , SW1-8 OFF , SW1-9 ON
f) Position 5: SW1-7
ON , SW1-8 OFF , SW1-9 ON
g) Swing 1: SW1-7
OFF , SW1-8 ON , SW1-9 ON
h) Swing 2: SW1-7
ON , SW1-8 ON , SW1-9 ON
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10 SW1-10
DiagnosticMode
a) Defaultposition(OFF)
b) DiagnosticModeEnabled(ON)
4. System Configuration

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Initial settings can be configured via the dipswitches on the circuit board, additional request codes not addressed by RMF-CA200-V1 may
be configured by temporarily connecting an MA remote controller.
Grouping:
The connection of more than one RMF-CA200-V1 to a single thermostat is not supported.
Temperature Sensing:
The RMF-CA200-V1 relies upon both the dry-contact thermostat inputs and Mitsubishi Electric indoor unit’s thermistors in order to monitor
room temperature. The thermostat senses room temperature and establishes set temp. The Mitsubishi Electric indoor unit’s return air
thermistor
is used for cooling and heating setpoint calculation.
Operate the third-party thermostat per the manufacturer’s instructions. Simultaneous connection and use of RMF-CA200-V1 and Mitsubishi
remote controllers (e.g. MA/ME) is not
supported as they will interfere with the correct RMF-CA200-V1 operation. Infrared Wireless remote
controllers may be used for setting fan speed while only G signal is active and setting vane position. RMF-CA200-V1 and thermostat
signals take precedence over Mitsubishi wireless remote controller signals other than fan and vane settings.
Notes:
1. The indoor unit will limit the internal temperature control set point based on the indoor unit specification.
2. Only fan speeds available on the Mitsubishi Electric indoor unit can be used by the Thermostat Interface.
3. Fan and vane control can be set using the Mitsubishi Electric indoor unit’s infrared wireless remote control. Default is Automatic
setting.
4. When all cooling and 2 hours after heating signals is disabled, energizing G will place the IDU into fan mode. Fan speed may be changed
from default settings using the wireless remote controller and new setting will remain until unit is powered off.
5. Auto mode function is not supported on multi-zone (MXZ) systems
5. Operator Instructions