Allied ML14XP1-060 Instrukcja instalacji - Strona 12

Przeglądaj online lub pobierz pdf Instrukcja instalacji dla Pompa ciepła Allied ML14XP1-060. Allied ML14XP1-060 17 stron. Split system heat pump r410a refrigerant

Drukuj stronę

Torque Requirements

When servicing or repairing heating, ventilating and air

conditioning components, ensure the fasteners are appro-

priately tightened. Table 2 lists torque values for fasteners.

TABLE 2

TORQUE REQUIREMENTS

Parts

Service valve cap

Sheet-metal screws

Machine screws #10

Compressor bolts

Gauge port seal cap

IMPORTANT

To prevent stripping of the various caps used, the

appropriately sized wrench should be used and fitted

snugly over the cap before tightening.

Using Manifold Gauge Set

When checking the system charge, only use a manifold

gauge set that features low loss anti-blow back fittings.

Manifold gauge set used with HFC-410A refrigerant sys-

tems must be capable of handling the higher system oper-

ating pressures. The gauges should be rated for use with

pressures of 0 - 800 psig on the high side and a low side

of 30" vacuum to 250 psig with dampened speed to 500

psi. Gauge hoses must be rated for use at up to 800 psig

of pressure with a 4000 psig burst rating.

OPERATING BALL-TYPE SERVICE VALVE

1 - Remove stem cap with an appropriately sized wrench.

2 - Use an appropriately sized wrench to open. To open valve, rotate

stem counterclockwise 90°. To close, rotate stem clockwise 90°.

TO OPEN, ROTATE STEM

COUNTERCLOCKWISE 90°.

TO CLOSE, ROTATE STEM

CLOCKWISE 90°.

SERVICE PORT

CORE

SERVICE PORT

CAP

FIGURE 12

Recommended Torque

8 ft.-lb.

11 NM

16 in.-lb.

2 NM

28 in.-lb.

3 NM

90 in.-lb.

10 NM

8 ft.-lb.

11 NM

BALL (SHOWN

CLOSED)

STEM CAP

OPERATING ANGLE-TYPE SERVICE VALVE

1 - Remove stem cap with an appropriately sized wrench.

2 - Use a service wrench with a hex-head extension (3/16" for liquid

line valve sizes and 5/16" for vapor line valve sizes) to back the

stem out counterclockwise as far as it will go.

When service valve is OPEN, the service port is

When service valve is CLOSED, the service port is

NOTE - A label with specific torque requirements may be affixed to

the stem cap. If the label is present, use the specified torque.

A service port cap protects the service port core from contamination

and serves as the primary leak seal.

1 - Remove service port cap with an appropriately sized wrench.

2 - Connect gauge set to service port.

3 - When testing is completed, replace service port cap and tighten

as follows:

With torque wrench, finger tighten and torque

cap per table 2.

Without torque wrench, finger tighten and

VALVE

use an appropriately sized wrench to turn

STEM

an additional 1/6 turn clockwise.

Reinstall Stem Cap

Stem cap protects the valve stem from damage and serves as the

primary seal. Replace the stem cap and tighten as follows:

With torque wrench, finger tighten and

then torque cap per table 2.

Without torque wrench, fi

en and use an appropriately sized

wrench to turn an additional 1/12

turn clockwise.

Page 12

SERVICE PORT CAP

SERVICE PORT CORE

(VALVE STEM SHOWN OPEN)

INSERT HEX WRENCH HERE

STEM CAP

ANGLE-TYPE SERVICE VALVE

(BACK-SEATED OPENED)

open to line set, indoor and outdoor unit.

(VALVE STEM SHOWN CLOSED)

INSERT HEX WRENCH HERE

ANGLE-TYPE SERVICE VALVE

(FRONT-SEATED CLOSED)

open to the line set and indoor unit.

FIGURE 13

ACCESS SERVICE PORT

FIGURE 14

1/6 TURN

11 12

1/12 TURN

11 12