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S4359128

9. Test Run

9-1. Performing Test Run

Be careful since the fan will

start when performing Test

Run.

(1)

The Operation Selector is located on the electrical

component box inside the indoor unit. To access the

Operation Selector, press the two latches of the air

intake grille in the direction of the arrow to open the

grille. Open the air intake grille downward.

(Fig. 9-1)

(2)

Set the Operation Selector to the “Test” position.

The air conditioner will start running.

(3)

Let the unit run for about 30 minutes and check that

the unit operates normally.

(4)

After the Test Run, be sure to reset the Operation

Selector to the “ON” position for normal operation.

The air conditioner continues to run .

(5)

Referring to the Operating Instructions, select the

Cooling mode and press the ON / OFF operation

button on the remote control unit, to confirm remote

control unit operation.

Set the Operation Selector at the “ON” position. Other-

wise the unit will stop or will not run correctly.

Operation
selector

Air filter

Air intake grille

1323_M_I

TEST OFF ON

Fig. 9-1

Fig. 9-2

Service TEST RUN
switch

RUN

TEST

RUN

(Bottom)

Remote control unit
viewed from rear

0543_M_I

CAUTION

Important

9-2. Performing Test Run with Optional Wired

Remote Control Unit

(1)

Service TEST RUN switch is located on the rear

side of the remote control unit. Set the switch to the

TEST RUN position. (Fig. 9-2)

(2)

Referring to the Operating Instructions, select the

cooling mode and press the ON / OFF operation

button on the remote control unit.

(3)

The air conditioner will start running 3 minutes after

the ON / OFF operation button is pressed.

(4)

Let the unit run for about 30 minutes and check that

it operates normally.

(5)

Press the ON / OFF operation button again to stop

the unit.

Set the Service Test RUN switch at “RUN” position,

otherwise the unit will not run correctly.

Important

Содержание C1852

Страница 1: ...ons for 2 Units or 2 Groups of Units 6 ELECTRICAL WIRING 18 6 1 General Precautions on Wiring 6 2 Recommended Wire Length and Wire Diameter for Power Supply System 6 3 Wiring Instructions for the Outdoor Unit 6 4 Examples of Incorrect Wiring 6 5 How to Connect Wiring to the Terminal CONTENTS Model Combinations Combine indoor and outdoor units only as listed below Indoor units Outdoor units XS1852 ...

Страница 2: ...s Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For ...

Страница 3: ... 71 F WB 115 F DB Minimum 67 F DB 57 F WB 67 F DB 0 F DB CL Models Wireless remote control unit Part Name Figure Q ty 1 2 1 1 AAA alkaline battery Tapping screw Tapping screw Special screw 4 16 mm TOTA 4 16 1 General This booklet briefly outlines where and how to install the air conditioning system Please read over the entire set of instructions for the indoor and outdoor units and make sure all a...

Страница 4: ...of elevation difference between the 2 units Models C1852 Tubing Data CL1852 Tubing size Narrow tube in mm 1 4 6 35 Thickness 0 0314 0 8 mm outer dia Wide tube in mm 5 8 15 88 Thickness 0 0394 1 0 mm Limit of tubing length ft 65 Outdoor unit is higher 23 than indoor unit ft Outdoor unit is lower 23 than indoor unit ft Max allowable tubing length at shipment ft 33 Required additional refrigerant 1 o...

Страница 5: ...he unit occurs DO select an appropriate position from which every corner of the room can be uniformly cooled select a location where the ceiling is strong enough to support the weight of the unit select a location where tubing and drain pipe have the shortest run to the outdoor unit allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 2 1 install the unit w...

Страница 6: ...ortion of the outdoor unit or incomplete combustion may result Donotintroduceforeignmatter into the air intake outlet or exhaust Donotpokethemwith such objects as a stick provide a solid base level concrete pad concrete block 4 in 16 in 10 40 cm beams or equal a minimum of 4 in 10 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life...

Страница 7: ...stall the Indoor Unit 3 1 Suspending the Indoor Unit This unit uses a drain pump Use a carpenter s level to check that the unit is level 3 2 Preparation for Suspending 1 Fix the suspension bolts securely in the ceiling using the method shown in the diagrams Figs 3 1 and 3 2 by attaching them to the ceiling support structure or by any other method that ensures that the unit will be securely and saf...

Страница 8: ...on bolt must be appropri ate for a distance between the bottom of the bolt and the bottom of the ceiling of more than 2 3 8 in as shown in Fig 3 4 3 Thread the 2 hexagonal nuts and washers field supply onto the 4 suspension bolts as shown in Fig 3 5 Use 2 sets of nuts and washers upper and lower so that the unit will not fall off the suspen sion lugs 4 Remove the protective cardboard used to prote...

Страница 9: ...mum of 10 in Do not raise it any higher than 10 in as this could result in water leaks Fig 3 9 Do not install the pipe with an upward gradient from the connection port It will cause the drain water to flow backwards and leak when the unit is stopped Fig 3 10 Do not apply force to the piping on the unit side when connecting the drain pipe The pipe should not be allowed to hang unsupported from its ...

Страница 10: ...er into the drain pan to check drainage 2 Do Test Run to check the drainage after complet ing installation When performing Test Run be sure to observe the Test Run procedure Refer to page 37 Be careful since the fan will start turning when checking the drainage 3 After drain checking is finished return the Operation Selector switch to the RUN position ON position and remount the tube cover To moun...

Страница 11: ...ve the air intake grille and air filter from the ceiling panel Figs 3 13 and 3 14 a Remove the 2 screws on the latch of the air intake grille Fig 3 13 b Press on the 2 latches of the air intake grille with your thumb in the direction of the arrow to open the grille Fig 3 13 c With the air intake grille open about 45 remove the safety string hook on the grille side Fig 3 14 d Pull the air intake gr...

Страница 12: ...mounting screws 3 7 Installing the Ceiling Panel 1 Lift the ceiling panel and position it to align the panel hook with the panel catch of the indoor unit The ceiling panel must be mounted in the correct direction Note that the 2 catches of the panel differ in size Confirm that the catches are correctly matched be tween the ceiling panel and the indoor unit body 2 Next check to see that the ceiling...

Страница 13: ...ormance filter is used Screw 4 Air intake filter M5 L125 for fastening Screw 4 4 Duct connection flange box M4 L12 for fastening Duct connection box 1 for fresh air Duct connection flange 1 for connecting fresh air duct Do not connect the acces sory cord with socket to the electrical component box when the unit is used to take fresh air Do not connect the acces sory cord with socket when assemblin...

Страница 14: ...3P plug of the indoor unit electrical component box Connect the 6P socket to the 6P plug from the operation selector Reattach the socket cover f INSTALLING THE HIGH PERFORMANCE FILTER OR SUPER LONG LIFE FILTER Fig 3 18 Turn the filter hooks of the air intake chamber Install high performance or super long life filter into the chamber Install in the correct direction Set the filter so that the arrow...

Страница 15: ...correct operation use a screwdriver to screw the supplied special mounting screw into the wall Fig 4 1 d Hang the remote control unit from the mounting screw 2 Non removable mounting a Momentarily hold the remote control unit in the desired mounting position b Confirm that the air conditioner responds correctly when you press keys on the remote control from that position c After confirming correct...

Страница 16: ...r pointed object to remove the plastic bushing which is inserted in the rear of the remote control unit The bushing can be discarded Fig 4 4 2 Align the cord with the groove of the remote control unit 3 Attach the mounting plate to the wall with the 2 supplied screws Then align the rail on the rear of the control unit with the slot of the mounting plate and slide the unit down as far as it will go...

Страница 17: ...r up to 2 units or 2 groups of indoor units installed in the same room Two remote control units are necessary to allow the respective units or group to be controlled indepen dently An indoor unit cannot be controlled if its remote control unit is too far away more than 26 ft If the remote control unit does not work correctly bring it closer to the unit being operated and try again There should be ...

Страница 18: ... ex National Electric Code ANSI NFPA70 before beginning You must ensure that installation complies with all relevant rules and regulations 8 To prevent malfunction of the air conditioner caused by electrical noise care must be taken when wiring as follows The inter unit control wiring and the remote control wiring option should be wired apart from the inter unit power wiring AWG 12 AWG 12 C1852 CL...

Страница 19: ...it draws its power from the outdoor unit CAUTION 6 4 Examples of Incorrect Wiring The following are examples of improper wiring that result in system misoperation You should confirm that you have wired the units correctly before beginning the test run Problem 1 Short circuit will occur after approx 3 minutes and the power circuit fuse blows Problem 2 Air conditioner will not operate 1 2 3 G G 1 2 ...

Страница 20: ...orm a loop suitable for the terminal screw 4 Shape the wire loop properly position it on the terminal plate and fix it securely with the terminal screw using a screwdriver For stranded wiring 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to expose the stranded wiring about 3 8 in Fig 6 4 2 Using a Pillips head screwdriver remove the terminal screw s on the ...

Страница 21: ...he copper tube 4 Make a flare at the end of copper tube with a flare tool Fig 7 3 Use RIGID or equivalent A good flare should have the following characteristics inside surface is glossy and smooth edge is smooth tapered sides are of uniform length 7 3 Precaution before Connecting Tubes Tightly 1 Apply a sealing cap or water proof tape to pre vent dust or water from entering the tubes before they a...

Страница 22: ...r and Outdoor Units 1 Tightly connect the indoor side refrigerant tubing with the outdoor side tubing Fig 7 6 2 To fasten the flare nuts apply specified torque as Table 7 1 Tightening Torque Approx 140 180 kg cm 120 160 Ibs in Approx 680 820 kg cm 590 710 lbs in Tube Dia 1 4 6 35 mm 5 8 15 88 mm 7 6 Insulating the Refrigerant Tubing Always insulate tubes after completing leak tests on all connecti...

Страница 23: ...e armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall As you wrap the tubing overlap half of each previous tape turn Fig 7 9 3 Clamp the tubing bundle to the wall using 1 clamp about every 3 feet Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also ensure that the condensation drain hose splits away from ...

Страница 24: ...ice valve on both narrow and wide tubes 3 Connect a vacuum pump and a manifold valve with pressure gauges to the service port on the wide tube service valve Fig 8 1 Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept closed 4 With the Lo knob of the manifold valve open run the vacuum pump The...

Страница 25: ...Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure Then remove the hose 11 Replace the bonnet and flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench or box wrench Next mount the valve cap and tighten it with a torque wrench the cap needs to be tightened with the torque of 170 ibs in 200 kg c...

Страница 26: ...ontrol unit to confirm remote control unit operation Set the Operation Selector at the ON position Other wise the unit will stop or will not run correctly Operation selector Air filter Air intake grille 1323_M_I TEST OFF ON Fig 9 1 Fig 9 2 Service TEST RUN switch RUN TEST RUN Bottom Remote control unit viewed from rear 0543_M_I CAUTION Important 9 2 Performing Test Run with Optional Wired Remote C...

Страница 27: ...o close the service valve Be sure to confirm that the wide tube service valve is fully open 3 Press the operation button and start cooling operation 4 When the low pressure gauge reading falls to 1 to 0 5 kg cm2 14 2 to 7 1 PSI fully close the wide tube valve stem with a standard screwdriver Then quickly stop the unit 5 Disconnect all gauges and hose and replace the bonnets and the valve caps as t...

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