Refrigerant piping | Haier AU242AGERA, AU182AFERA, AU36NAHERA

Installation Procedure

Installation of outdoor unit

AU422AIERA AU42NAIERA AU522AIERA AU52NAIERA

948

Power wiring Terminal

1250

	25
	580
380	340

4.Refrigerant piping

(1)Outline piping

AU122AEERA AU182AFERA

Flare connection

Gas pipe		3-way stop valve
Gas pipe
Indoor		Outdoor
unit		unit
Liquid
pipe	Flare connection	2-way stop valve

AU242AGERA AU282AHERA AU362AHERA AU36NAHERA

AU422AIERA AU42NAIERA AU522AIERA	AU52NAIERA
Flare connection	3-way stop valve
Gas pipe
Indoor	Outdoor
unit	unit
Liquid
pipe	3-way stop valve
	3-way stop valve

16

Image 18

Haier AU242AGERA, AU182AFERA, AU36NAHERA, AU362AHERA, AU282AHERA installation instructions Refrigerant piping

Contents

Room AIR Conditioner Contents Name of Parts Safety Cautions Symbols used in the illustrations Installed electrical-leaking circuit breaker Have the unit professionally installed Securely attach the terminal coverpanel on the unit Only use specified parts Use a vacuum pump with a reverse-flow- check valve Do not use a charging cylinder Exercise special care when handling the toolsBefore Installing the Unit Only use R410A refrigerant Make sure the wires are not subject to tension Properly dispose of the packing materialsDo not operate the unit without air filters Items to Be Checked Necessary Tools and Materials Tool and materials that must not used with R410A Piping Materials/Radial Thickness Flare Machiningtype-O and OL onlyFlare Nut Reasons Airtightness TestItems to be strictly observed Vacuuming Charging Refrigerant Remedies to be taken in case of a refrigerant leak Installation Procedure Installation of outdoor unit AU242AGERA Refrigerant piping Refrigerant piping Piping size Air discharging method Piping method to use wacuum pump e.g. AU182AFERA Electric wiring Wiring connection Wiring procedure Before starting test run for all Heat pump models Test run Haier Group