Day and Night WCH3**4 Manual de instrucciones de instalación - Página 5

Navegue en línea o descargue pdf Manual de instrucciones de instalación para Bomba de calor Day and Night WCH3**4. Day and Night WCH3**4 18 páginas. R?410a split system heat pump

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INSTALLATION INSTRUCTIONS

REFRIGERATION SYSTEM

A typical TXV installation is shown in Figure 3.

Figure 3

Typical TXV Installation

EQUALIZER

TUBE

SENSING

BULB

TXV

SENSING BULB

(EITHER SIDE)

SUCTION

É É

8 O'CLOCK

B. REFRIGERANT LINE SETS

RECOMMENDED REFRIGERANT LINE SET DIAMETERS

Model Size

Rated Vapor**

5/8

Liquid

Units are rated with 0−80 ft (0−24 m) of lineset length. See Vapor Line

Sizing and Cooling Capacity Loss table when using other sizes and

lengths of lineset.

The refrigerant line set must be properly sized to assure

maximum efficiency and proper oil circulation.

Refer to Product Specifications and Long Line

Applications Guideline for line set sizing.

NOTE: Total line set length must not exceed 200 feet

(61m).

NOTE: A crankcase heater must be used when the

refrigerant line length exceeds 80 feet (24.4m) or when

the outdoor unit is at least 20 feet (6.09m) below the

indoor unit.

If outdoor unit is more than 10 feet higher than the indoor

coil, refer to the Long Line Applications Guideline for

instructions.

NOTE: When the outdoor unit is higher than the indoor

coil, the vertical separation must not exceed 100 feet

(30m).

NOTE: When the outdoor unit is lower than the indoor

coil, the vertical separation must not exceed 50 feet

(15.2m).

428 01 5302 00

INDOOR

COIL

SUCTION

TUBE

LIQUID

TUBE

STRAP

É É

TUBE

É É

4 O'CLOCK

3/4

7/8

1−1/8

3/8

R−410A Split System Heat Pump

If it is necessary to add refrigerant line in the field, use

dehydrated

dry,

sealed,

refrigeration tubing. Do not use copper water pipe.

Do not remove rubber plugs or caps from copper tubing

until connections are ready to be made.

Be extra careful when bending refrigeration tubing.

Tubing can "kink" easily, and if this occurs, the entire

length of tubing must be replaced.

WARNING

PERSONAL INJURY HAZARD

Failure to relieve system pressure could result in

personal injury and/or death.

Relieve pressure and recover all refrigerant before

servicing existing equipment, and before final unit

disposal. Use all service ports and open all flow−

control devices, including solenoid valves.

Federal regulations require that you do not vent

refrigerant to the atmosphere. Recover during

system repair or final unit disposal.

CAUTION

UNIT OPERATION HAZARD

Failure to follow this caution may result in improp-

er product operation.

Do not leave system open to atmosphere any lon-

ger than absolutely required for installation. Inter-

nal system components − especially refrigerant

oils − are extremely susceptible to moisture con-

tamination. Keep ends of tubing sealed during

installation until the last possible moment.

C. ROUTING AND SUSPENDING REFRIGERANT

LINES

Run refrigerant lines as straight and direct as possible,

avoiding unnecessary bends and turns. Always insulate

the entire suction line. Both lines should be insulated

when routed through an attic or when routed through an

underground raceway.

When routing refrigerant lines through a foundation or

wall, do not allow refrigerant lines to come in direct

contact with the building structure. Make openings large

enough so that lines can be wrapped with extra insulation.

Fill all gaps with RTV caulk. This will prevent noise

transmission between the tubing and the foundation or

wall.

Along floor or ceiling joists, suspend refrigerant lines so

that they do not contact the building structure, water

pipes, or ductwork. Use insulated or suspension type

hangers. Metal straps must be at least 1" (25mm) wide to

avoid cutting into the tube insulation. Keep the liquid and

suction lines separate. Refer to Figure 4.

deoxidized,

copper