Sanyo ch1872 service manual

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Vertical A. Sweep function The flap starts moving up and down to deliver air over the sweep range. Auto flap function The flap is set to the recommended position. Care and Cleaning 1. For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning. Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard. Page 84 Cleaning the negative Follow the steps below when the generator has ion generator become dirty.

Remove the dust on the negative ion generator. Page Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service.

If it still does not work properly, contact your dealer or service center. Trouble Air conditioner does not run at all. Consequently, the shape may differ from that of the air conditioner that you are installing.

Page Important Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum fins on the air conditioner can cut your fingers. Page General 1. General This booklet briefly outlines where and how to install the air conditioning system.

Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.

Page Additional Materials Required For Installation WARNING tion and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surround- ing the air conditioner in a way that may block air flow.

AVOID: direct sunlight. Page Outdoor Unit Fig. Install in a location where no antenna of a television or radio exists within 10' 3 m.

CH Air intake Concrete or equal Fig. How to Install the Indoor Unit Remove the Rear Panel from the Unit 1 Remove and discard the set screw on the rear panel. See Table 4 and Fig. Table 4 Hole Dia. Remove the Grille to Install the Indoor Unit Basically, these models can be installed and wired with- out removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille 1 Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

Page Recommended Wire Length And Diameter No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part. For the installation of a grounding device, please observe local electrical codes. Wiring Instructions for Inter-unit Connections 1 Insert the inter-unit wiring according to local codes into the through-the-wall PVC pipe.

Run the wiring toward the indoor side allowing approx. A fire hazard may also exist. There- fore, be sure all wiring is tightly connected. Page Mounting Mounting 1 To install the indoor unit, mount the indoor unit onto the 2 tabs on the upper part of the rear plate.

Page I Left-side tubing 1 Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attach- ment. Switching drain hose and drain cap a Locate the drain hose and the drain cap. Page Drain Hose To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. Drain Hose a The drain hose should be slanted downward to the outdoors. Installation Site Selection.

Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local elec- trical codes. Page Refrigerant Tubing 5. Refrigerant Tubing Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units.

In this method, the copper tubes are flared at each end and connected with flare nuts. Connecting Tubing between Indoor and Outdoor Units a Tightly connect the indoor side refrigerant tubing exten- ded from the wall with the outdoor side tubing. Page Air Purging 6. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below.

Therefore, they must be purged completely. This completes air purging with a vacuum pump and the air conditioner is ready for actual operation. Page How to Test Run the Air Conditioner After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run. Page Address Switch Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other.

Sanyo Canada Inc. This manual is also suitable for: Ch 24khs72 - 24, btu ductless single zone mini-split wall-mounted heat pump Khs Khs Print page 1 Print document pages. Rename the bookmark. Delete bookmark? Cancel Delete. Related products. DIY Do-It-Yourself manuals are made for homeowners and handymen who have mechanical abilities but can use a little training in repairing certain appliances. It is only to be used along with the service manual not as a replacement for it as it applies to the appliance type, not the specific model and will go into more details on repairing the appliance.

Service Manuals generally provide information and instructions pertaining to product disassembly, schematic diagrams, parts lists, exploded views, troubleshooting guides, wiring diagrams, and much, much more.

Page Troubleshooting Precautions before Performing Inspection or Repair After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair. High-capacity electrolytic capacitors are used inside the outdoor unit controller inverter.

They retain an electrical charge charging voltage DC V even after the power is turned OFF, and some time is required for the charge to dissipate. Page 44 2 If the self-diagnostics function fails to operate No indicators illuminate and the Check the indoor unit. Check the power voltage. Blown Is the fuse blown? Normal Replace the circuit board or the fuse. Replace the controller.

Use the remote controller to operate the unit in "TEST run" mode. Trouble Diagnosis of Fan Motor Therefore, it is not possible to measure the coil resistance, and the following procedure should be used to check the motor. To perform diagnosis, operate the unit in cooling mode with indoor fan speed "High". Page Outdoor Fan Motor Perform the trouble diagnosis by Test Run mode described on Installation Instructions.

Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur. Page Checking Electrical Components Measurement of Insulation Resistance Clip The insulation is in good condition if the resistance exceeds 1M ohm. Probe Then pull out the fuse from the PCB Ass'y.

Characteristics of New Refrigerant RA What is New Refrigerant RA? RA is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant, R Page Checklist Before Servicing Checklist before Servicing Use a clutch-type flare tool for RA or the conventional flare tool. Note that sizes of the resultant flares differ between these two tools.

Where a conventional flare tool is used, make sure to observe A Specification amount of extrusion by using the flare spacer. Use only the tools indicated exclusively for RA. See " Tools Specifically for RA. Procedure for Replacing Compressor 1 Recovering refrigerant Any remaining refrigerant inside the unit should not be 1 Recover refrigerant Page 55 5 Recharging Configuration and characteristics of cylinders Be sure to charge the specified amount of Valve refrigerant in liquid state using the service port of the wide tube service valve.

The proper amount is listed on the unit's nameplate. When the entire amount cannot be charged all at once, charge gradually while operating the unit in Cooling Operation.

Follow the procedure described below to locate points of leaks and carry out repairs, then recharge the refrigerant. Page Charging Additional Refrigerant Charging Additional Refrigerant When Tubes are Extended Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state only.

Never charge additional refrigerant if refrigerant is leaking from the unit. Details on these functions are provided below; refer to these descriptions when using the air conditioner. Page 60 Contents Page Features Automatic Operation Manual Operation NOTE Consequently, the shape may differ from that of the air conditioner which you have selected.