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3.0 Installation
•
Thermostat may be configured to operate in conventional or heat pump modes. Use 18 AWG thermostat wire for all connections.
•
Wire connection terminals support20 -30 VAC.
•
Fan speed (only G signal active) is determined by the DIP switch setting.
•
The default vane position is determined by the DIP switch setting.
•
If configured for two-stage operation, fan speeds can be configured by DIP switch settings.
•
Auxiliary heater control is provided by CN24 connector on indoor units PC Board. The CN24 connector outputs 12VDC at 80mA. Please
consult a licensed technician to ensure proper set-up and safety of auxiliary heat source in accordance with auxiliary heat source
product documentation and local building codes. Please confirm CN24 availability in the indoor unit manual.
•
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.
•
Install the transformer as per Canadian Electrical Code, Canadian building code and local codes compliance, and manufacturer's
installation instructions.
•
Connect the RMF-CA200-V2 cable to the connector CN105 on the indoor unit control board.
STEP 1: Select Single or Two-stage thermostat operation using DIP switch SW1-1
If Y2 or W2 is left unconnected or is unavailable from the thermostat set SW1-1 to the ON position. This configures single stage (simulated
VRF) operation of RMF-CA200-V2; simulating multiple stage operation using temperature differential based on W1 / Y1 call and run time.
OFF position (default)
ON position
STEP 2: Select Conventional or Heat Pump Mode using DIP switch SW1-2:
OFF Position (default)
ON Position
3.1 Single Stage and Two-Stage Conventional Connection Diagram
IM-RMF-CA200-V2-202306FM
Configured for Two-stage heating and cooling thermostats (Y1, Y2 & W1, W2)
Configured for use with Single-stage heating / cooling thermostats (Y1, W1)
Default - Configures conventional mode
Enables heat pump mode
© Mitsubishi Electric Sales Canada Inc. All rights reserved.
:
Thermostat Conventional Mode
Connections
Pin Signal
1
TC
Common (IN) Transformer
Common (OUT) To
2
C
3
TR
24 VAC (IN) Transformer
4
R
24 VAC (OUT) Thermostat
5
Y2
Stage 2 Cooling
6
Y1
Stage 1 Cooling
7
W2
8
W1
9
H
10
G
11
O
12
EO
Error Output (24 VAC OUT)
In single stage operation Y2, W2 signals are not
used
Description
Thermostat
Stage 2 Heat
Stage 1 Heat
Not Available
Fan
Not Available
2
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