Panasonic S-22KA1E5S Service Manual

Contents

Panasonic S-22KA1E5S Service Manual Manual pdf 88 page image

8811.2 FS MULTI OUTDOOR UNITHP MODEL NAME8 HP U-8EA1E810 HP U-10EA1E8REFRIGERANTR 410ARefer to the indoor unit installation instruction manual for the indoor unit installation.• This product uses refrigerant series R410A with the design pressure of 4.15 MPa.• Refer to the caution items listed in “Refrigerant installation” for the installation of the refrigerant piping andmaintain strict control concerning the prevention of mixing impurities (water and mineral oils such as Suniso oils)with R410A.• The indoor unit to be connected must be R410A compatible and be sure to check the catalogue, etc. for availablemodels. The product may not operation properly if connected to other indoor units.Optional parts: For piping installation, branch pipeunit is needed. Make the necessarypreparations for the number of indoorunits for piping installation to beconnected.Caution: Ensure that the branch pipe unit usedis compatible with R410A. Refer to“Refrigerant installation” for therefrigerant piping installation.Separately sold refrigerant branch pipe unit modelnumberLine branch pipe CZ-P280BK14-header branch pipe SPG-HCH280MCZ-P4HPC23-header branch pipe APR-RTP280AGBCZ-P3HPC2Combination of indoor and outdoor unitsTotal capacity of the indoor units Number of connectable indoor unitsOutdoor unitmodel nameOutdoor unit coolingrated capacity Minimum Maximum Minimum MaximumU-8EA1E8 22.4kW 11.2kW 29.1kW 2 unit 13 unitU-10EA1E8 28.0kW 14.0kW 36.4kW 2 unit 16 unit1. Use the above table to combine the number of indoor units with the appropriate capacity which matches theoutdoor unit’s cooling capacity rating. Set the combined number of units to comply with the appropriate capacity.2. Assuming a system where all indoor units are operating at the same time, set the total capacity of the outdoorunit considering external factors that can decrease the cooling capacity rating. Higher total capacities may lead toreduced indoor capacity and overload.Precautions in terms of safetyCarry out installation work with reliability after thorough reading of this “Precaution in terms of safety”.• Precautions shown here are differentiated between Warnings and Cautions . Those that have much chancesfor leading to significant result such as fatality or serious injury if wrong installation would have been carried outare listed compiling them especially into the column of Warnings .However, even in the case of items which are listed in the column of Cautions , such items also have a chancefor leading to significant result depending on the situations.In either case, important descriptions regarding the safety are listed, then observe them without fail.• As to indications with illustrationThis mark means “Caution” or “Warning”. This mark means “Earth”.• After installation work has been completed, do not only make sure that the unit is free from any abnormalcondition through the execution of try run but also explain how to use and how to perform maintenance of thisunit to the customer according to the instruction manual.In addition, request the customer to keep this manual for installation work together with instruction manual.