Sanyo 85464359981002 Use a cylinder designed for, Charging additional refrigerant

Page 67

CAUTION

Use a cylinder designed for

use with R410A respectively.

 

Charging additional refrigerant

●Charging additional refrigerant (calculated from the liquid tube length as shown in Section 1-7 “Additional Refrigerant Charge”) using the liquid tube service valve. (Fig. 7-5)

●Use a balance to measure the refrigerant accurately.

●If the additional refrigerant charge amount cannot be charged at once, charge the remaining refrigerant in liquid form by using the gas tube service valve with the system in cooling operation mode at the time of test run. (Fig. 7-6)

Finishing the job

(1)With a hex wrench, turn the liquid tube service valve stem counter-clockwise to fully open the valve.

(2)Turn the gas tube service valve stem counter-clockwise to fully open the valve.

 

Manifold valve

Pressure

Lo

Hi

gauge

Valve

Liquid

R410A

Close

Gas tube

Close

Outdoor unit

CAUTION

To avoid gas from leaking when removing the charge hose, make sure the stem of the gas tube is turned all the way out (“BACK SEAT” position).

Open

Liquid tube

Close

(3)

Loosen the charge hose connected to the gas

 

tube service port (for ø5/16" tube) slightly to

 

release the pressure, then remove the hose.

(4)

Replace the service port cap on the gas tube

 

service port and fasten the cap securely with an

 

monkey spanner or box wrench. This process is

 

very important to prevent gas from leaking from

 

the system.

Fig. 7-5

(5) Replace the valve caps at both gas tube and liquid

tube service valves and fasten them securely.

This completes air purging with a vacuum pump. The air conditioner is now ready for a test run.

Open

Gas tube

Open

Close

Liquid tube

Open

Fig. 7-6

Outdoor unit

67

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Contents Outdoor Units R410A Models Indoor UnitsOptional Controllers …In an Area with High Winds Special Precautions…In a Room …In Moist or Uneven LocationsCheck of Density Limit Manifold gauge Vacuum pump Care regarding tubingBe sure to recharge the refrigerant only in liquid form Different tools requiredR410A Compressor specifications are differentSingle-outlet valve Existing tubing cannot be used especially R22Contents Appendix HOW to Process TubingAIR Purging Test RUNGeneral 1-Way Air Discharge Semi-Concealed 4-Way Air Discharge Semi-ConcealedConcealed Duct Tubing Size Main Tubing Size LA Concealed Duct High-Static PressureCeiling-Mounted Wall-Mounted11 Straight Equivalent Length of Joints Tubing Length Items Marks ContentsCan accumulate, since refrig Installing Distribution JointPay special attention to any Location, such as a basementAPR-P160BA Optional Distribution Joint KitTightening torque for valve stem cap 240 280 lbs · Main tubing Distribution joint tubing ExampleWall-Mounted Type Selecting the Installation SiteIndoor Unit Ceiling-Mounted TypeCase of multiple installations Installation spaceCountermeasures against snow and wind Installing the Unit in Heavy Snow AreasPrecautions for Installation in Heavy Snow Areas Air Discharge Chamber for Top DischargeWind CHX03652/06052Front and both sides must remain open 28-13/16 17-23/32 47-19/32 Obstacle to the front of unit Obstacle to the rear of unitObstacles to the front and rear of unit Installation in front-rear rows12, 18, 24 HOW to Install the Indoor UnitSuspending the Indoor Unit Placing the Unit Inside the CeilingPVC pipe must be purchased separately. Installing the Drain PipingBe careful since the fan will Start when you short the pinOn the indoor control board Removing the corner cover Main unit Gaps Ceiling surface Installing the Ceiling PanelWiring the Ceiling Panel Special Remarks DC Fan Tap Change Procedure Checking After InstallationWhen Removing the Ceiling Panel for Servicing Adjusting the Auto FlapFollow the diagrams to make the holes in the ceiling Full-scale Installation diagram Suspension lug 25/32 1 Suspension bolts Tubing side Unit Ceiling Material 25/32 Be careful since the fan will start Appearance Part name Electrical Power WiringWiring connections WiringRemoving the side panel Removing the intake grilleMust be no gap Indoor unit Ceiling surface Ceiling panel If a wireless remote controller is used Installing the side panel and intake grilleInstalling the intake grille Other Check after installationNumber of duct flanges Type LengthCeiling. Ensure that the ceiling is strong Enough to support the weight of the unitIt is important that you use extreme care Supporting the indoor unit insidePipe Short the pin on the indoor control board How to read the diagramIncreasing the Fan Speed 78 and -5 show the detailed dimensions Enough to suport the weight of the unit Indoor Fan Performance How to Read the Diagram Unit Refrigerant tubing drain hose positionIndoor unit from the ceiling Weight of the unit. BeforeWall and ceiling side opening position It is important that you useInside Shaping the Tubing Duct for Fresh AirRear outlet port Bracket How to carry out power supply wiringWhen removing the fastening Bracket from the coverSelecting and Making a Hole Attaching the grille Removing the Grille to Install the Indoor UnitIf the Wall is Brick, Concrete or Similar Removing the grilleRight-rear tubing Installing the Drain HoseDo not supply power to the unit or operate It until all tubing and wiring to the outdoorKHX2452 KHX0752 / 0952 / 1252HOW to Install the Outdoor Unit CHX06052 Electrical WiringGeneral Precautions on Wiring CHX03652 For field wiring rules, please referU, D, T Type Wiring System DiagramOutdoor unit Fire hazard may also That all wiring is tightlyHow to connect wiring to the terminal For stranded wiring Result in unit malfunctionConnecting the Refrigerant Tubing Use of the Flaring Method HOW to Process TubingFlaring Procedure with a Flare Tool Tube diameter Tightening torque Tube thickness Approximate After a tube has been Insulating the Refrigerant Tubing Tubing InsulationTwo tubes arranged together Insulation materialTaping the Tubes Finishing the InstallationAIR Purging Evacuation Charging additional refrigerant Use a cylinder designed forFinishing the job Test RUN YES Test Run Procedure Items to Check Before the Test RunOutdoor Unit PCB Setting Examples of the No. of indoor units settings Automatic Address Setting from the Outdoor Unit Auto Address Setting Basic wiring diagram ExampleIf link wiring is used Automatic Address Setting from Outdoor Unit Automatic Address Setting no compressor operationSetting in heating mode begins Automatic Address Setting in Heating ModeAutomatic Address Setting from the Remote Controller Automatic Address Setting in Cooling ModeDisplay during automatic address setting Remote Controller Test Run Settings If 1 indoor unit is connected to 1 remote controllerChecking the indoor unit addresses LED Alarm Type 4-WAY Care and CleaningTips for Energy Saving Latch Air intake Safety chain Grille Bolt screwsWater drain Air outlet Air intake Ceiling panel optional Remove the air filter from the air intake grilleTroubleshooting Canvas duct optional Concealed Duct High-Static Pressure Type U, D TypeElectrical box Air outlet side duct flange Troubleshooting Air intake grille air intake CEILING-MOUNTEDOr soot Type Wall-Mounted Tips for Energy Saving

85464359981002 specifications

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