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エアコン Blueridge BA14のPDF 取付説明書をオンラインで閲覧またはダウンロードできます。Blueridge BA14 19 ページ。 (single-stage) air conditioner

Refrigerant Piping - Install Indoor Expansion Valve

This outdoor unit is designed for use in systems that include an expansion valve metering device (purchased separately) at

the indoor coil. See the Product Specifications for approved expansion valve kit match-ups and application information. The

check expansion valve unit can be installed internal or external to the indoor coil. In applications where an uncased coil is

being installed in a field-provided plenum, install the check/expansion valve in a manner that will provide access for future

field service of the expansion valve. Refer to below illustration for reference during installation of expansion valve unit.

INDOOR EXPANSION VALVE INSTALLATION

TWO PIECE

(Uncased Coil Shown)

PATCH PLATE

(UNCASED

LIQUID LINE

COIL ONLY)

ORIFICE

HOUSING

DISTRIBUTOR

TUBES

DISTRIBUTOR

ASSEMBLY

MALE EQUALIZER LINE

FITTING (SEE

EQUALIZER LINE

INSTALLATION FOR

FURTHER DETAILS)

Sensing bulb insulation is required if

mounted external to the coil casing. sensing

bulb installation for bulb positioning.

EQUALIZER LINE INSTALLATION

1 - Remove and discard either the flare seal cap or flare nut

with copper flare seal bonnet from the equalizer line port

on the vapor line as illustrated in the figure below.

2 - Remove the field-provided

sembly.

FLARE SEAL CAP

Page 6 of 19

STUB

END

EXPANSION

VALVE

TEFLON

RING

TEFLON

SENSING

RING

EQUALIZER

LINE

LIQUID LINE

ASSEMBLY WITH

BRASS NUT

VAPOR

LINE

LIQUID LINE

FLARE NUT

COPPER FLARE

SEAL BONNET

MALE BRASS EQUALIZER

LINE FITTING

VAPOR LINE

3 - Install one of the provided Teflon

stubbed end of the check expansion valve and lightly

lubricate the connector threads and expose surface of

the Teflon

ring with refrigerant oil.

4 - Attach the stubbed end of the check expansion valve to

the liquid line orifice housing. Finger tighten and use an

appropriately sized wrench to turn an additional 1/2 turn

clockwise as illustrated in the figure above, or tighten to

20 ft-lb.

5 - Place the remaining Teflon

end of the check expansion valve. Lightly lubricate

connector threads and expose surface of the Teflon

ring with refrigerant oil.

LINE

6 - Attach the liquid line assembly to the check expansion

valve. Finger tighten and use an appropriately sized

wrench to turn an additional 1/2 turn clockwise as

illustrated in the figure above or tighten to 20 ft-lb.

SENSING BULB INSTALLATION

1 - Attach the vapor line sensing bulb in the proper

orientation as illustrated to the right using the clamp and

screws provided.

NOTE - Though it is preferred to have the sensing bulb

installed on a horizontal run of the vapor line, installation

on a vertical run of piping is acceptable if necessary.

NOTE - Confirm proper thermal contact between vapor

line and check/expansion bulb before insulating the

sensing bulb once installed.

2 - Connect the equalizer line from the check expansion

valve to the equalizer vapor port on the vapor line. Finger

tighten the flare nut plus 1/8 turn (7 ft-lbs) as illustrated

below.

VAPOR LINE

BULB

VAPOR LINE

BULB

NOTE - NEVER MOUNT THE SENSING BULB ON

Issue 2212

rings around the

washer around the other

ON LINES SMALLER THAN

7/8",

MOUNT

BULB AT EITHER THE 3 OR

9 O'CLOCK POSITION.

BULB

ON 7/8" AND LARGER LINES,

MOUNT SENSING BULB AT

EITHER THE 4 OR 8 O'CLOCK

POSITION.

BULB

BOTTOM OF LINE.

1/2 Turn

11 12

1/8 Turn

11 12

SENSING

508255-01