Carrier 50PG03-07 Especificações descarregar pdf (Página 38)

High velocity water from a pressure washel: garden hose,

or compressed air should never be used to clean a coil. The

force of the water or air jet will bend the tin edges and

increase airside pressure &op. Reduced unit performance

or nuisance unit shutdown may occm:

Totaline® Eiivironmentally Sound Coil CTeaner Application

Instructions

1. Proper eye protection such as safety glasses is recom-

mended during mixing and application.

2. Remove all surface loaded fibel_ and dirt with a vacuum

cleaner as described above.

3. Thoroughly wet finned surfaces with clean water and a

low velocity garden hose, being careful not to bend fins.

4. Mix Totaline environmentfdly sound coil cleaner in a

21/2 gallon garden sprayer according to the instructions

included with the cleanec The optimum solution temper-

ature is 100 E

NOTE: Do NOT USE water in excess of 130 IF.as the enzy-

matic activity will be destroyed.

5. Thoroughly apply Totaline environmentally sound coil

cleaner solution to fdl coil surfaces including finned area,

tube sheets and coil headers.

6. Hold garden sprayer nozzle close to finned fueas and ap-

ply cleaner with a vertical, up-and-down motion. Avoid

spraying in horizontal pattern to minimize potential for

fin damage.

7. Ensure cleaner thoroughly penetrates deep into finned

alias,

8. Interior and exterior finned areas must be thoroughly

cleaned.

9. Finned surfaces should remain wet with cleaning solution

for 10 minutes.

10. Ensure surfaces are not allowed to dry before rinsing. Re-

applying cleaner as needed to ensure 10-minute satura-

tion is achieved.

11. Thoroughly rinse all surfaces with low velocity clean wa-

ter using downward rinsing motion of water spray nozzle.

Protect fins from damage from the spray nozzle.

CONDENSATE DRAIN PAN -- Check find clean each yefu fit

the stfut of the cooling season.

To clean the condensate pan:

1. Disconnect condensate &'ain system from side or bottom

drain connection.

2. Remove and clean trap.

3. Remove 4 screws securing condensate pan access cover

to unit. Save screws and panel.

4. Slide condensate pan out from unit find clean. Pan is

made of non-corrosive plastic. Use a mild cleaner to re-

move heavy deposits of dirt and grime.

5. Replace pan in unit.

6. Replace condensate pan access cover with 4 screws saved

fiom Step 3.

7. Re-attach find prime condensate trap.

8. Connect condensate &ainage system.

NOTE: During winter in low (subfreezing) temperature

regions, add antifreeze solutions to the drain. Protect against

contact with chil&en, pets and animals.

FILTERS -- Clean or replace fit start of each heating and cool-

ing season, or more often if operating conditions require. Refer

to Table 1 for type and size.

OUTDOOR-AIR INLET SCREENS -- Clean screens with

steam or hot water and a mild detergent.

Lubrication

COMPRESSORS- Each compressor is chfuged with the

correct amount ofoil fit the factory.

The compressor is in a Puron® lefrigerant system and uses

a polyolester (POE) oil. This oil is extremely hygroscopic,

meaning it absorbs water readily. POE oils can absorb

15 times as much water as other oils designed for HCFC

and CFC refrigerants. Avoid exposure of the oil to the

atmosphere. Damage to components could result.

Polyolester (POE) compressor lubricants are known to

cause long term damage to some synthetic roofing materifds.

Exposure, even if immediately cleaned up, may cause roofing

materials to become brittle (leading to cracking) within a

yefu: When performing any service which may risk exposure of

compressor oil to file roof. take appropriate precautions to

protect roofing. Procedures which risk oil leakage include com-

pressor replacement, lepairing refrigerant leaks, and replacing

refrigerant components. To plepzue rooftop:

1. Cover extended roof work area with an impermeable

plastic dropcloth or tarp. Make sure a 10 x 10 1l fuea

around the work area is covered.

2. Cover fuea in front of the unit service panel with a terry

cloth shop towel to absorb lubricant spills and prevent

run-offs. Towel will also protect dropclofll from tears

caused by tools or components.

3. Place terry cloth shop towel inside the unit directly under

components to be serviced to prevent spills through the

bottom of the unit.

4. Perform the required service.

5. Remove an dispose of any oil contaminated material per

locfd codes.

INDOOR FAN SHAFT BEARINGS -- The indoor fan has

perlnanently sealed bearings. No field lubrication is necessary.

CONDENSER AND EVAPORATOR-FAN MOTOR

BEARINGS -- The condenser-fan find evaporator-fan

motors have permanently sealed bearings, so no field lubrica-

tion is necessfuy.

Evaporator Fan Service and Replacement -- The

50PG units feature a slide-out fan deck for easy servicing of the

indoor-fan motel: pulleys, belt, and bearings. To service com-

ponents in this section, perform the following procedure:

1. Turn offunit powel:

2. Open the fan section access dool:

3. Remove two no. 10 screws fit front of slide-out fan deck.

Save screws. See Fig. 22.

4. Disconnect the electrical wires connected to the slide-out

fan deck (supply air thermistor and fan status switch if

instfdled). Wires may be damaged if not disconnected.

5. Fan deck can now be slid out to access serviceable

components.

DO NOT SLIDE FAN DECK OUT PAST THE FAN

DECK STOR If further access is required, the fan deck

must be supported. Make sure plugs and wiring am not

pinched between fan housing find unit sheet metal post.

Damage to unit may result.

6. To replace fan deck to operating position, slide fan deck

back into the unit. Secure with the two no. 10 screws re-

moved in Step 3.

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Carrier 50PG03-07 Especificações Página 38

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