To Next PageTo Next PageWhat to do if my Sanyo Air Conditioner has abnormal refrigerant gas pressure?
If your Sanyo Air Conditioner shows abnormal refrigerant gas pressure, check for a possible refrigerant shortage or a blockage in the refrigerant circuit.
How to troubleshoot a fuse problem in my Sanyo Air Conditioner?
To address a fuse issue in your Sanyo Air Conditioner, visually inspect the fuse or use a tester to check for continuity.
Why does the fan motor rotation speed vary excessively during Sanyo Air Conditioner outdoor unit operation?
If the fan motor rotation speed varies excessively during your Sanyo Air Conditioner's outdoor unit operation, replace the outdoor unit controller. If the issue persists, replace the DC motor.
Why does the fan motor rotation speed not change during Sanyo CM2472A Air Conditioner outdoor unit operation?
If the fan motor rotation speed doesn't change during your Sanyo Air Conditioner's outdoor unit operation, check the outdoor unit controller.
What to do if motor rotates for some time, but then quickly stops, when the Sanyo CM2472A Air Conditioner outdoor unit operates?
If the motor rotates briefly but then stops quickly when the outdoor unit of your Sanyo Air Conditioner is running, check the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller.
What to do if the fan does not stop when the Sanyo Air Conditioner outdoor unit stops?
If the fan continues to run after the outdoor unit of your Sanyo Air Conditioner stops, it may indicate an issue with the outdoor unit controller. Replace the motor.
What to do if the fan motor does not rotate when the Sanyo Air Conditioner outdoor unit is operating?
If the fan motor isn't rotating when the outdoor unit of your Sanyo Air Conditioner is operating, it could be due to a problem with the outdoor unit controller. Replace the controller.
General| Type | Split System |
|---|---|
| Power Consumption (Cooling) | 2.2 kW |
| Power Supply | Single Phase, 50Hz |
| Noise Level (Indoor) | 45 dB(A) |
| Noise Level (Outdoor) | 55 dB(A) |
| Cooling Capacity | 24000 BTU/h |
Details about the notice including reason for change and reference numbers.
Specifies the product category and model numbers.
Summary of capacity, outdoor model, and product codes.
Identifies the outdoor unit models and destination.
Overview of applicable wall-mounted and semi-concealed indoor unit types.
Highlights the use of R410A refrigerant and servicing attention.
Precautions for electrical work, wiring, power supply, and component handling.
Safety measures for handling capacitors and working with wet hands.
Ensuring secure wiring and proper attachment of covers for safety.
Explanation of warning, prohibition, and attention symbols.
Safety measures for refrigerant, working at heights, and unit relocation.
Battery handling, water washing, humidity, and component check precautions.
Safety during cleaning, part handling, and checking drainage.
Details on R410A composition, properties, and characteristics.
Essential checks and precautions before performing servicing.
Tools and procedures for R410A tubing installation and servicing.
Procedures for compressor malfunction and refrigerant leak handling.
Instructions for charging refrigerant and retrofitting existing systems.
Compatibility of wall-mounted and semi-concealed indoor units.
Indoor and outdoor air intake temperature ranges for operation.
Technical data for the outdoor unit, including capacity, power, and dimensions.
Specifications for key components like PCB, compressor, and fan motor.
Specifications for sensors, including resistance vs. temperature charts.
Diagrams showing the dimensions and service valve locations for CM1972A.
Schematic of the refrigerant flow path through the outdoor unit.
Guidelines for insulating refrigerant tubing to prevent heat loss and condensation.
Performance charts showing cooling characteristics for CM1972A outdoor unit.
Performance charts showing cooling characteristics for CM2472A outdoor unit.
Performance charts showing cooling characteristics for CM3172A outdoor unit.
Tables showing cooling capacity at various indoor/outdoor temperature conditions.
Wiring diagrams for the outdoor unit CM1972A.
Wiring diagrams for the outdoor unit CM2472A.
Wiring diagrams for the outdoor unit CM3172A.
Explanation of unit operation modes like INITIAL, COOL, and SENSOR DRY.
Explanation of COOL mode, freeze prevention, stop, and restart conditions.
Table showing frequency control based on outdoor air temperature.
Explanation of SENSOR DRY mode, including DRY A and DRY B operations.
Description and illustration of the 1/f fluctuation fan operation.
Conditions for switching to low ambient cooling operation.
Fan speed adjustment and protective actions in low ambient conditions.
Automatic reduction or stoppage of operation to control operating current.
Details of automatic frequency control for current reduction and prohibition.
Graphical explanation of current control limits for frequency reduction.
Protective functions for stable start current and compressor temperature.
Safety precautions for inspecting and repairing electronic circuits, especially capacitors.
Using error monitor lamps on the outdoor unit to diagnose faults.
Location of error lamps and interpretation of error codes.
Procedure to check outdoor unit operation by applying voltage and shorting terminals.
Table mapping problems to inspection points for indoor and outdoor unit parts.
Cross-reference of common problems with specific inspection points.
Specific inspection procedures for components like fuses, compressors, and sensors.
Troubleshooting steps for electric expansion valve, breaker, and refrigerant gas pressure.
Checking the branch tubing temperature sensor installation.
Diagnosing refrigerant shortage vs. circuit blockage and checking for leaks.
Procedure for diagnosing issues with the outdoor DC fan motor.
Details on R410A composition, properties, and characteristics.
General precautions for servicing R410A units, including oil type.
Essential checks and precautions before performing servicing.
Specifications for R410A tubing and flare tool usage.
Restrictions on compressor oil and refrigerant types for R410A systems.
Safety measures if R410A is exposed to fire or leaks.
List of specialized tools required for servicing R410A systems.
Commonly used tools and guidelines for refrigerant tubing installation.
Step-by-step procedure for replacing the compressor.
Table showing standard evacuation times based on tubing length.
Instructions for recharging refrigerant after service, including cylinder handling.
Steps for detecting, recovering, sealing, and evacuating refrigerant leaks.
Table showing standard evacuation times based on tubing length.
Recharging refrigerant after leak repair and evacuation.
Instructions for charging refrigerant when tubes are extended.
Guidelines on using existing units and tubing with R410A systems.
Manual covers installation for CM1972A, CM2472A, and CM3172A outdoor units.
Installation guide for CM1972A, CM2472A, and CM3172A outdoor units.
Essential safety and operational guidelines before installation.
Essential safety and operational guidelines before installation.
Safety measures for wiring, transporting, and installing units.
Safety steps before servicing and general safety measures.
Lists of required tools, accessories, optional kits, and materials for installation.
Guidelines and AVOID conditions for selecting the indoor unit installation site.
Recommended practices for outdoor unit placement, clearances, and base.
Cautions regarding airflow blockage, ceiling height, and floor clearance.
Table detailing tubing length, elevation difference, and refrigerant requirements.
Diagrams showing types of indoor unit connections for CM1972A.
Diagrams showing types of indoor unit connections for CM2472A.
Diagrams showing types of indoor unit connections for CM3172A.
Guidelines and AVOID conditions for selecting the outdoor unit installation site.
Recommendation and procedure for installing baffle plates for wind protection.
Dimensions and required parts for baffle plate installation.
Step-by-step instructions for installing air intake and discharge baffles.
Precautions during baffle plate installation, including surface protection and drilling.
Dimensional diagrams for CM1972A, CM2472A, and CM3172A outdoor units.
Diagram showing installation clearances and connections for indoor/outdoor units.
Instructions for embedding and bundling tubing and wiring.
Explanation and steps for flaring copper tubes for connections.
Procedure for making a good flare on copper tubes.
Precautions and torque specifications for connecting refrigerant tubes.
Instructions for insulating refrigerant tubing for wall-mounted and ceiling units.
Requirements for insulation material used in the system.
Caution to ensure correct matching of tubing and wiring connections.
Procedure for taping refrigerant tubes and drain hose together.
Final steps for sealing holes and finishing the installation.
Explains the negative effects of air and moisture in the refrigerant system.
Procedure for air purging using a vacuum pump.
Caution regarding R410A charging ports and required tools.
Cautions regarding the use of manifold valves and vacuum pump adapters.
Table showing required time for evacuation with a vacuum pump.
Procedure for recovering refrigerant gas using pump down.
Definition, purpose, and conditions for the pump-down procedure.
General safety and connection precautions for wiring.
Guidelines for wire length, diameter, and fuse capacity based on model.
Wiring system diagrams for 3-indoor unit and 4-indoor unit configurations.
Warnings for complying with local codes, wire connection, and avoiding contact with parts.
Cautions regarding power supply connection, wiring placement, and grounding.
Instructions for connecting wires to indoor and outdoor unit terminals.
Warning about the risks of loose wiring, including overheating and fire.
Instructions for connecting inter-unit cables A, B, C, D to the outdoor unit.
Importance of grounding and using labels for correct inter-unit cable connections.
Instructions for performing the test run for connected indoor units.
Checking for errors in tubing and wiring after the test run.
Caution to stop operation immediately if errors are found in tubing or wiring.
Location and connection of the HA 4P terminal on the indoor unit PCB.
Checklist for verifying proper installation of units, wiring, refrigerant circuit, and connections.
List of unit combination tables for different outdoor units.
Combination tables for CM1972A, CM2472A, and CM3172A outdoor units.
Note on operating multi-unit systems with 2 or more indoor units.
Combinations of connectable indoor units for CM1972A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM1972A (230V).
Table listing ceiling-mounted indoor unit combinations for CM1972A (208V).
Combinations of connectable indoor units for CM2472A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM2472A (230V).
Important note prohibiting concurrent operation of four indoor units.
Table listing ceiling-mounted indoor unit combinations for CM2472A (208V).
Combinations of connectable indoor units for CM3172A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM3172A (230V).
Table listing ceiling-mounted indoor unit combinations for CM3172A (230V).
Combinations of connectable indoor units for CM3172A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM2472A (230V).
Important note prohibiting concurrent operation of four indoor units.
Table listing ceiling-mounted indoor unit combinations for CM2472A (208V).
Combinations of connectable indoor units for CM3172A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM3172A (230V).
Table listing ceiling-mounted indoor unit combinations for CM3172A (230V).
Combinations of connectable indoor units for CM3172A outdoor unit.
Conditions for connecting indoor units to the multi outdoor unit.
Example calculation for total cooling capacity of connected indoor units.
Caution regarding concurrent operation of all indoor units.
Notes specific to 230V and 208V operation.
Table listing wall-mounted indoor unit combinations for CM3172A (230V).
Table listing ceiling-mounted indoor unit combinations for CM3172A (208V).
