Emerson E2 Instrukcja Operatora Pobierz pdf (Strona 51)

Note: There are no unique injection valve service

procedures for the 4D Intelligent Store™ com-

pressor. Use conventional 4D valve change-out

procedures.

1. Disconnect power to the compressor and module.

2. After isolating the liquid line by closing the shut-

off, relieve trapped pressure by actuating the sole-

noid.

This is very important! When heated, pres

sures generated by trapped refrigerant may

lead to a ruptured tube. Wear safety goggles

when using a torch. Evacuate the compressor

per accepted industry practice. Unsolder the injec-

tion tube below the side box. Keep the torch flame

out of the side box to avoid burning the wire har-

ness. A wet rag around the valve is recommended

for additional protection.

3. Unsnap the injection coil and lift it off of the valve

stem.

4. Unplug the two Deutsch harness connections that

enter the side of the rear terminal box. Depress

the two tabs (top and bottom) to release the con-

nectors.

5. Remove screws “A” and “B” (see the enclosure

diagram above, and the accompanying photo-

graphs).

5.1.5 Injection Valve Replacement (2D / 3D)

Reference Drawing of 2D / 3D Enclosure and Accessories

TEMPERATURE SENSOR

GROUND SCREW

LOW PRESSURE CUTOUT SWITCH AND CONNECTOR

White Dot in Center

Blue Wire Harness (LPCO)

HOUSING COVER NUTS

SCREWS “A”

FRONT CONTROL BOX

HARNESS ANCHOR

HIGH PRESSURE CUTOUT SWITCH AND CONNECTOR

Red Dot in Center

Red Wire Harness (HPCO)

DISCHARGE TEMPERATURE PROBE

Black/White Harness

Attach Green Wire to Ground Screw

SCREW “B”

SIDE BOX

DEMAND COOLING

SOLENOID COIL

Brown Wire Harness

(Liquid Injection)

HARNESS CONNECTORS

To Remove: Depress 2 tabs before pulling

To Install: Push in until connector “snaps”

Install Torque

25-30 ft-lb

Screw B

Deutsch Plugs

Screws A

AE8-1337 R1

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 70 71

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Emerson E2 Instrukcja Operatora Strona 51

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