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Installation instructions

System Start Up and Charge Adjustment Procedures

The outdoor unit is supplied with a R-22 charge sufficient for 15 feet of refrigeration tubing.
The outdoor unit’s liquid and suction valves are closed to contain the charge within the
unit. The recommended procedures for charge adjustments are as follows:

Additional Charge Needed for Refrigeration lines over 15 feet

1. After connecting the refrigeration tubing to the indoor and outdoor units. connect a

vacuum pump to the refrigeration valve service ports.

2. Evacuate through the liquid and suction valve service ports to 500 microns or less for a minimum of 30 minutes. Close

the valves to the pump and monitor the vacuum for 15 minutes. The vacuum should not rise above 800 microns.

3. If a vacuum of 500 microns cannot be obtained, or if it rises ablve 800 microns over the 15 minute period, discontinue

evacuation, pressurize the system with nitrogen and look for leaks. Repair any leaks that are found and repeat step 2.

4. Close the valves to the vacuum pump, turn the pump off, and disconnect it from the refrigerant valve service ports. Open

the liquid and suction service valves fully, releasing the R-22 into the system. Connect the service gauges to the refrigerant
valve service ports.

5. Set the indoor remote control to cool mode and ensure proper operation. Allow unit to run for a period of 10 minutes to

allow system pressures to stabilize.

*

Make sure that proper pressures are observed.

*

Check proper temperatures in space, to ensure temperatures match those on remote control.

*

Check condensate drain hose for proper drainage.

*

Check for any abnormal vibration noises and correct as needed.

*

Check for any signs of refrigerant leakage.

6. Set the indoor remote control to heat mode and ensure proper operation. Allow unit to run for a period of 10 minutes to

allow system pressures to stabilize. Fllow same checkouts as cool mode.

Air exhaust

Leakage check

Properly check refrigeration tubes and connections for any leaks prior to system start up procedures.

NOTE:

is the low-pressure valve

is the high-pressure valve

C and D 

are the joints of connecting pipes

of indoor unit.

Liquid Line O.D. (Inches)

Additional R-22 (oz / ft)

1/4

3/8

.22

.58

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Содержание KFR-12G

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Страница 2: ...tructions Modes 7 Air flow direction control 8 I FEEL mode 9 Timer operation mode 10 Sleep operation mode 11 Maintenance 12 Protection 13 Refrigeration cycle 14 Specifications 15 Installation instruct...

Страница 3: ...wires must be located in areas where they will not be dam aged or cut Never insert any type of object into the outdoor unit fan Because the fan rotates at a high speed this may cause injury Be sure th...

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Страница 17: ...xHxD in Shipping Weight lbs OUTDOOR SECTION WxHxD in Shipping Weight lbs Refrigerant Charge lbs KFS 12G 12000 12000 10 5 2 9 340 450 520 42 52 60 to 109 28 to 75 115 60 1 15 1440 11 7 1420 10 8 28 Fla...

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Страница 19: ...e at least 3 feet from televisions radios etc l Indoor unit and remote control must be kept out of direct sunlight and or fluorescent lighting l The wall that the indoor unit hangs on must strong enou...

Страница 20: ...ine be immersed in water If an extension is added to the drain line make sure that it is also properly insulated Connection of refrigeration lines l Do not use contaminated or damaged copper tubing fo...

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Страница 22: ...f the unit moves it is not properly seated l A unit support plate in the mounting plate can be used if the unit is on a slanted wall and can also be used to ease the connection of the refrigeration li...

Страница 23: ...lants or other obstruction should be free and clear of the unit to ensure proper operation l Owners should advised to avoid lawn mowers or other machinery discharge toward the unit as debris can damag...

Страница 24: ...n conduit A to the indoor unit Outdoor unit terminal block Control inter connecting conductors in conduit B to the indoor unit The conduit should not be loosened after being fixed otherwise it may cau...

Страница 25: ...he valves to the vacuum pump turn the pump off and disconnect it from the refrigerant valve service ports Open the liquid and suction service valves fully releasing the R 22 into the system Connect th...

Страница 26: ...nly around the condenser Figure 1 2 Connect the drain elbow and the plastic hose Figure 2 3 Insert the drain elbow connected with the drain hose into the hole which has the largest drainage flow and r...

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Страница 30: ...ONOTPUTINDOORUNITINLOCATIONSWHEREITMAYGETWET ELECTRICALINSTALLATIONMUSTBEINACCORDANCEWITHLOCALAND NATIONALELECTRICALCODES THEINSTALLATIONOFTHESEUNITSREQUIRESQUALIFIEDPERSONNEL CERTIFIED APPROVED POWER...

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Страница 32: ...ty of indoor fan motor Abnormality of outdoor unit No defect unit in defrost mode Open circuit or short circuit of room temperature sensor Incorrect connection of the sensor Open circuit or short circ...

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