TECHNICAL & SERVICE MANUAL Ceiling Cassettes ... - Engvent.ru

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1 SAFETY PRECAUTIONCAUTIONS RELATED TO NEW REFRIGERANTUse new refrigerant pipes.In case of using the existing pipes for R22, be careful withthe followings.· For RP4, 5 and 6, be sure to perform replacement operationbefore test <strong>ru</strong>n.· Change flare nut to the one provided with this product.Use a newly flared pipe.· Avoid using thin pipes.Make sure that the inside and outside of refrigerantpiping is clean and it has no contaminationsuch as sulfur hazardous for use, oxides, dirt,shaving particles, etc.In addition, use pipes with specified thickness.Contamination inside refrigerant piping can cause deteriorationof refrigerant oil etc.Store the piping to be used during installationindoors and keep both ends of the piping sealeduntil just before brazing. (Leave elbow joints, etc.in their packaging.)If dirt, dust or moisture enter into refrigerant cycle, that cancause deterioration of refrigerant oil or malfunction of compressor.Use ester oil, ether oil or alkylbenzene oil (smallamount) as the refrigerant oil applied to flaresand flange connections.If large amount of mineral oil enter, that can cause deteriorationof refrigerant oil etc.Charge refrigerant from liquid phase of gascylinder.If the refrigerant is charged from gas phase, compositionchange may occur in refrigerant and the efficiency will belowered.Do not use refrigerant other than R410A.If other refrigerant (R22 etc.) is used, chlorine in refrigerantcan cause deterioration of refrigerant oil etc.Use a vacuum pump with a reverse flow checkvalve.Vacuum pump oil may flow back into refrigerant cycle andthat can cause deterioration of refrigerant oil etc.Use the following tools specifically designed fo<strong>ru</strong>se with R410A refrigerant.The following tools are necessary to use R410A refrigerant.Tools (for R410A)Gauge manifold Flare toolCharge hoseSize adjustment gaugeGas leak detector Vacuum pump adaptorTorque wrenchElectronic refrigerantcharging scaleKeep the tools with care.If dirt, dust or moisture enter into refrigerant cycle, that cancause deterioration of refrigerant oil or malfunction of compressor.Do not use a charging cylinder.If a charging cylinder is used, the composition of refrigerantwill change and the efficiency will be lowered.Ventilate the room if refrigerant leaks duringoperation. If refrigerant comes into contact witha flame, poisonous gases will be released.[1] Cautions for service(1) Perform service after collecting the refrigerant left in unit completely.(2) Do not release refrigerant in the air.(3) After completing service, charge the cycle with specified amount of refrigerant.(4) When performing service, install a filter drier simultaneously.Be sure to use a filter drier for new refrigerant.[2] Additional refrigerant chargeWhen charging directly from cylinder· Check that cylinder for R410A on the market is syphon type.· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)2
UnitGravimeter[3] Service toolsUse the below service tools as exclusive tools for R410A refrigerant.No.Specifications1 Gauge manifold ·Only for R410A·Use the existing fitting specifications. (UNF1/2)·Use high-tension side pressure of 5.3MPa·G or over.2 Charge hose ·Only for R410A·Use pressure performance of 5.09MPa·G or over.3 Electronic scale4 Gas leak detector ·Use the detector for R134a, R407C or R410A.5 Adaptor for reverse flow check ·Attach on vacuum pump.6 Refrigerant charge base7 Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)Cylinder with syphon8 Refrigerant recovery equipment3
Page 1: NOT AVAILABLE˚CAMPMAMPMSTAND BYDEF
Page 5 and 6: ● DisplayCENTRALLYCONTROLLED disp
Page 7 and 8: 3SPECIFICATIONSService Ref.ItemFunc
Page 9 and 10: ItemService Ref.FunctionCapacityBtu
Page 11 and 12: 11DATA44-1. PERFORMANCE DATA4-1-1.
Page 13 and 14: 13COOLING CAPACITY (3)PLA-RP4AA.UK
Page 19 and 20: 4-1-2. HEATING CAPACITYPUHZ-RP3VHA,
Page 21 and 22: 4-3. STANDARD OPERATION DATAHeat pu
Page 23 and 24: 5OUTLINES AND DIMENSIONSPLA-RP3AA.U
Page 25 and 26: 7REFRIGERANT SYSTEM DIAGRAMPLA-RP3A
Page 27 and 28: 8-2. SELF-DIAGNOSIS ACTION TABLEErr
Page 29 and 30: Error Code Meaning of error code an
Page 31 and 32: 8-4. EMERGENCY OPERATION8-4-1. When
Page 33 and 34: 8-5-2. Controller boardPLA-RP3AA.UK
Page 35 and 36: 8-7. HOW TO CHECK THE PARTSPLA-RP3A
Page 37 and 38: 9DISASSEMBLY PROCEDUREPLA-RP3AA.UK,
Page 39 and 40: OPERATING PROCEDURE9. Removing the
Page 41 and 42: FUNCTIONAL PARTSPLA-RP3AA.UKPLA-RP4
Page 43 and 44: FUNCTIONAL PARTSPLA-RP3AA.UKPLA-RP4
Page 45 and 46: 11OPTIONAL PARTS11-1. TIMERPart No.
Page 47 and 48: 11-2. MULTI-FUNCTIONAL CASEMENTPart

TECHNICAL & SERVICE MANUAL Ceiling Cassettes ... - Engvent.ru

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