Panasonic WH-SDC07C3E5 Service Manual

Also see for WH-SDC07C3E5: Design handbook Operating instructions

Contents

Panasonic WH-SDC07C3E5 Service Manual Manual pdf 3 page image

31 Safety Precautions• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main circuit for themodel installed.• The caution items stated here must be followed because these important contents are related to safety. The meaning of eachindication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, andthe seriousness is classified by the following indications.• The items to be followed are classified by the symbols:• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care andmaintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.This indication shows the possibility of causing death or serious injury.This indication shows the possibility of causing injury or damage to properties.This symbol denotes item that is PROHIBITED from doing.1. Do not modify the machine, part, material during repairing service.2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiringunit.3. Do not wrench the fasten terminal. Pull it out or insert it straightly.4. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause waterleakage, electrical shock or fire.5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, waterleakage, refrigerant leakage, fire or electrical shock.7. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is notproperly done, the set will drop and cause injury.8. Do not install outdoor unit near handrail of veranda. When installing outdoor unit at veranda of high rise building, child may climb upto outdoor unit and cross over the handrail and causing accident.9. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit andsingle outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock orfire.10. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod andtelephone. Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.11. Do not use joint cable for indoor / outdoor connection cable. Use specified indoor / outdoor connection cable, refer to InstallationInstructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor connection. Clamp the cable sothat no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.12. When install or relocate Air to Water Heatpump indoor / outdoor unit, do not let any substance other than the specified refrigerant, eg.air etc. mix into refrigerant cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result inexplosion, injury etc.13. This is a R410A model. When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may causeabnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A refrigerant.Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.It is desirable that the amount of residual oil is less than 40 mg/10 m.14. During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without fixingrefrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result inexplosion, injury etc.15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping whilecompressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle andresult in explosion, injury etc.16. After completion of the installation servicing confirm there is no leakage of refrigerant gas. It may generate toxic gas when therefrigerant contacts with fire.17. Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gaswhen the refrigerant contacts with fire.18. Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water/refrigerant leakage, electrical shockor fire.