Amana CKF60 Instrucciones de operaciones descargar pdf (Pagina 3)

Heat pumps require special location consideration in areas

of heavy snow accumulation and/or areas with prolonged

continuous subfreezing temperatures. Heat pump unit bases

are cutout under the outdoor coil to permit drainage of frost

accumulation. Units must be situated to permit free unob-

structed drainage of the defrost water and ice. A minimum

7.6 cm clearance under the outdoor coil is required in the

milder climates.

In more severe weather locations, it is recommended that

units be elevated to allow unobstructed drainage and air flow.

While there are no hard and fast rules regarding elevation, we

suggest the following minimums:

If the outdoor unit is mounted above the air handler, the

maximum lift should not exceed 21.3 m (suction line). If air

handler is mounted above condensing unit, the lift should not

exceed 15.2 m (liquid line).

INSTALLATION, ELECTRICAL

The supply power, voltage, frequency and phase must coincide

with that on unit nameplate. All wiring should be carefully

checked against the manufacturer’s diagrams. Field wiring

must be connected in accordance with the National Electric

Code or other local codes that may apply. Make certain that

the equipment is adequately grounded per local code re-

quirements.

The manufacturer bears no responsibility for damage caused

to equipment or property as a result of the use of larger than

recommended size protective devices as listed on the unit

rating plate.

This equipment has been started at minimum rated voltage

and checked for satisfactory operation. Do not attempt to

operate this unit if available voltage is not within the minimum

and maximum shown on nameplate.

NOTE: Units are shipped without refrigerant and are

pressurized with a nitrogen holding charge of 125 PSI.

This charge must be removed and unit evacuated and

charged as per the installation instructions. Release holding

charge by opening the suction valve first then the liquid line

valve before attaching and brazing lines. When opening

valves with retainers, open each valve only until the top of the

stem is 1/8" from the retainer. To avoid loss of refrigerant, DO

NOT apply pressure to the retainer. When opening valves

without a retainer remove service valve cap and insert a hex

wrench into the valve stem and back out the stem by turning

the hex wrench counterclockwise. Open the valve until it

contacts the rolled lip of the valve body.

NOTE: These are not back-seating valves. It is not necessary

to force the stem tightly against the rolled lip.

Insulation of at least 1.3 cm wall thickness should be used on

the suction line to prevent condensation when cooling and

heat loss when heating. The insulation should be installed on

the tubing prior to installation and should be run the entire

length of the installed line. The end of the tubing over which

the insulation is being slipped should be covered to insure

that no foreign material is introduced to the interior of the

tubing. The outdoor units are equipped with two service

valves, and, “as shipped”, the valves are in the front-seated

or “closed” position.

The indoor coil is pressurized; the copper cap must be

punctured to permit a gradual escape of the pressure prior to

un-sweating those caps. Immediately couple the tubing to

the indoor unit to minimize exposing the coils to moisture.

REFRIGERANT LINE CONNECTIONS

IMPORTANT

To avoid overheating the service valves or expansion device

while brazing, wrap the component with a wet rag, or use a

thermal heat trap compound. Be sure to follow the

manufacturer’s instruction when using the heat trap com-

pound.

NOTE: Remove Schrader valves from service valves before

brazing tubes to the valves. Use a brazing alloy of 2%

minimum silver content. Do not use flux. Torch heat required

to braze tubes of various sizes is proportional to the size of

the tube. Tubes of smaller size require less heat to bring the

tube to brazing temperature before adding brazing alloy.

Applying too much heat to any tube can melt the tube. Service

personnel must use the appropriate heat level for the size of

the tube being brazed.

NOTE: The use of a heat shield when brazing is recom-

mended to avoid burning the serial plate or the finish of the

unit.

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Amana CKF60 Instrucciones de operaciones Pagina 3

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