Instruction/ maintenance manual of the product MXZ-2A20NA Mitsubishi Electronics
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INST ALLA TION MANUAL FOR INST ALLER CONTENTS 1. BEFORE INST ALLA TION ..............................................................................2 2. OUTDOOR UNIT INST ALLA TION .................................................................5 3.
2 1. BEFORE INST ALLA TION 1-1. THE FOLLOWING SHOULD AL W A YS BE OBSERVED FOR SAFETY • Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.
3 2. Front (blowing) side open As long as space lik e the one showninthegurecanbe maintained, it does not mat - ter if there are obstacles in three directions (but top side isopen).
4 1-6. INST ALLA TION DIAGRAM Unitsshouldbeinstalledbylicensedcontractoraccordingtolocalcoderequirements. Aftertheleaktest,applyinsulat - ingmaterialtightlysothatthereis no gap.
5 2. OUTDOOR UNIT INST ALLA TION 2-1. CONNECTING WIRES FOR OUTDOOR UNIT • Be sure to use special circuits for room air conditioner. • Wiring work should be based on applicable technical standards. • Wiring connections should be made following the diagram.
6 3. FLARING WORK AND PIPE CONNECTION 3-1. FLARING WORK Pipe diameter [mm(inch)] Nut (mm) A [mm(inch)] T ightening torque Clutchtypetool for R410A Clutchtypetool for R22 Wingnuttypetool for R22 N•m kgf•cm ft·Ib ø6.
7 4-1.PURGINGPROCEDURES ANDLEAKTEST Stop valve for GAS Stop valve cap (Torque 19.6 to 29.4 N•m, 200 to 300 kgf•cm, 15 to 22 ft •lb) Gauge manifold valve(forR410A) Compound pressure gauge(forR410A) –0.101MPa [–760 mmHg (-30in.
8 4-3.TESTRUN • Besuretoperformthetestrunforeachunit.Makesureeachindoorunitoperatesproperlyfollowingtheinstallationmanualattachedtotheunit.
HEAD OFFICE: T OKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAP AN JG79A039H01 JG79A039H01_cover4.indd 2 5/9/2008 2:23:16 PM.
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