Haier AD142AMBAC Instruction Manual

INSTALLATION MANUAL FOR OUTDOOR UNIT24Liquid pipeGas pipeGaugemanifoldVacuum pump3-way valve2-way valve6.35mm(1/4'')15.88mm(5/8'')77Valve rod capService port cap72-way valve3-way valveValve rod cap662-way valve3-way valve90 for 6 sec.4Service port90903-way valve2-way valveIf it does not stop gas leakage, dischargewhole refrigerants from the serice port.After flaring work again and vacuumize,fill up prescribed refrigerant from the gascylinder.Detach the charge hose from the service port, open2-way valve and 3-way. Turn the valve rodanticlockwise until hitting lightly.6In case of gas leakage, tightenparts of pipe connection. Ifleakage stops, then proceedsteps.6No gas leakage?54Open the valve rod for the 2-way valve to and angle ofanticlockwise 90 degree.After 6 seconds later, close the 2-way valve and malethe inspection of gas leakage.3Vacuumize for over 15min. And check the level gaugewhich should read -0.1 MPa (-76 cm Hg) at lowpressure side. After the completion of vacuumizing,close the handle 'Lo' in gaugemanifold and stop theoperation of the vacuum pump.Check the condition of the scale and hold it for 1-2min.If the scale-moves back in spite of tightening, makeflaring work again, the return to the beginning of 3 .2Open the handle at low in gaugemanifold, operatevacuum pump. If the scale-moves of gause (low)reach vacuum condition in a moment, check 1 again.1Detach the service port's cap of 3-way valve, thevalve rod's cap for 2-way valve and 3-way's, connectthe service port into the projection of charge hose(low) for gaugemanifold. Then connect the projectionof charge hose (center) for gaugemanifold intovacuum pump.To use vacuum pump3 CloseCAUTION:If the refrigerant of the air conditioner leaks, it is necessary to makeall the refrigerant out, then charge the liquid refrigerant into airconditioner according to the amount marked on the name plate.78After attaching the each caps, check the gas leakagearound the caps.To prevent the gas leakage, turn the service port'scap, the valve rod'd cap for 2-way valve and 3-way'sa lottle more than the point where the torque increasessuddenly.2 Open(5) Purging method ( the refrigerant is R407C)If needing to recycle the refrigerant gas when installation or repair , please refer to the following procedures:1. Cut off the power2. (After confirming the power is cut off) pull the power cable plug terminals of the low-pressure pressure-switch out.3. (After confirming the power cable terminals of the low-pressure pressure-switch is cut off) After powering on the unit againand switch to COOLING mode,perform refrigerant gas removing according to the normal refrigerant gas recycling procedure.4. After finishing refrigerant gas recycling , cut off the power , then insert the power cable terminals of the low-pressurepressure-switch properly.