MANUFACTURED FOR: MITSUBISHI ELECTRIC US, INC.
Thermostat Interface
PAC-US444CN-1
INSTALLATION/INSTRUCTION MANUAL |
|
FOR INSTALLER |
Before using the device, carefully read this installation/instruction manual to ensure proper operation.
Keep this manual for future reference and give it to the technician when the device is reinstalled or repaired.
Contents
1. |
Supplied Parts....................................................................................................... |
1 |
2. |
SafetyPrecautions................................................................................................. |
1 |
3. |
System Configuration............................................................................................ |
3 |
4. |
How to Install......................................................................................................... |
5 |
5. |
Usage.................................................................................................................... |
8 |
1. Confirming the Supplied Parts
Check that the box includes the following part(s) in addition to this installation manual:
PAC-US444CN-1 Thermostat Interface (1)
2. Safety Precautions
•Thoroughly read the following safety precautions before use.
•Hazards that can occur from incorrect handling are classified by the symbols below:
Warning |
Incorrect handling can result in death, serious injury, etc. |
|
|
|
|
Caution |
Incorrect handling can result in bodily injury and/or |
|
structure damage. |
||
|
||
|
|
•After reading this manual, keep this manual for future reference. When the device is reinstalled or repaired, give this manual to those who provide these services. When the user changes, make sure that the new user receives this manual.
Warning
• Only a dealer or qualified technician |
• Properly install the device on a |
should install, relocate, reinstall, or |
stable, load-bearing surface. |
repair the device. |
Device installed on an unstable |
Improper installation or repair may |
surface may fall and cause injury. |
result in electrical shock or fire. |
|
© 2015 Mitsubishi Electric US, Inc. |
1 |
• Only use the specified cables; |
• All electrical work should be |
securely connect each so that |
performed by an authorized |
the terminals do not bear any |
electrician according to local |
cable weight. |
regulations and instructions |
Improperly connected or short-circuited |
outlined in this manual. |
cables may produce heat and cause |
Capacity shortage to the power supply |
a fire. |
circuit or improper installation may |
• Do not make any modifications or |
result in electrical shock or fire. |
|
|
alternations to the device. |
• Properly install the device |
Modifications or improper repair may |
according to the instructions in this |
result in electric shock or fire. Consult |
Installation/Instruction Manual. |
your dealer for repair. |
Improper installation may result in |
|
electric shock or fire. |
|
|
Caution |
|
•Do not install the device in a location where a flammable gas leak may occur.
Gas may leak, collect around the device, ignite, and/or explode.
•Do not install the device in environments where large amounts of oil (including machine), sulfidizing gas, or acidic, alkaline, chemical sprays are present.
These types of substances may damage internal parts, cause device performance to be reduced, and cause electrical shock.
•Do not install the device in a bathroom, kitchen, or any room where steam could form.
Condensation may develop and cause electrical shock and/or the device to malfunction.
•Use standard wires with the proper current capacity
to avoid the possibility of current leak, excessive heat, and/or fire.
•Do not touch the main circuit board; also, make sure that dust does not accumulate on the circuit board.
•When installing the device in a hospital, communication facility, etc., provide sufficient protection against frequency noise.
Power generators and inverters, high-frequency medical, or radio communication equipment may interfere with the normal operation of this device. Subsequently, the device may also affect medical treatment, image broadcasting, etc., by creating frequency noise.
•Include some slack in the power supply wires.
Tension on the wires may cause them to excessively heat up and/or break, resulting in a fire.
•Do not install the device in a location where there is direct sunlight or where the temperature may become greater than 40°C (104°F) or less than 0°C (32°F).
If the device is installed in such place, it may result in deformation or malfunctions.
•Do not immerse the device in water.
Doing so may lead to electric shock or malfunctions.
© 2015 Mitsubishi Electric US, Inc. |
2 |
3. System Configuration
Warning: Thermostat should be configured for use with a conventional system (not heat pump).
Note: When either Y2 or W2 is left unconnected, it is recommended to set SW2-6 to the OFF position.
1.All wiring shown should be performed with 18 AWG thermostat wire.
2.Terminals on the PAC-US444CN-1 support 20-30VAC.
3.High/medium/low fan signals are optional, and may not be available on all thermostat models.
4.W2 and Y2 signals are optional, and may be omitted for single-stage thermostats.
Example 1: Two-stage Cooling and Heating
Note: When both Y2 and W2 are connected, it is recommended to set SW2-6 to the ON position.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
© 2015 Mitsubishi Electric US, Inc. |
3 |
||||||||||||||
Loading...