Emerson E2 Návod k obsluze stáhnout pdf (Strana 55)

5.3 Module Replacement for 2D / 3D

Refer to section 5.6.1, “Determine the Replacement

Module Part Number”. Note that the failed module

should be returned to the wholesaler to prevent pay-

ment of a core charge.

Refer to section 5.2 (“Compressor Replacement for

2D and 3D”) for module removal instructions.

Remove the module by following these steps in

section 5.2 (the module removal steps are marked

with an asterisk *):

• Step 1

• Steps 4 - 7

• Steps 10 - 12

Mechanical installation of the new module will be the

reverse of these steps.

After completing the mechanical installation, refer to

section 5.6.2, “Power-Up Instructions for the New

Module”. The power-up steps will allow the E2 to pop-

ulate the module with configurable settings appropri-

ate for this particular compressor.

Note: If you replaced a module that had only one

fuse in the side, or perhaps no fuse, you must not

re-use the field retrofit “snubber” connected to

the discharge pressure switch. Discard the snub-

ber - it is not needed with the twin-fuse module.

Additionally, the in-line fuse in the terminal box

(for the contactor coil) may be discarded.

5.4 Service Procedures for the 4D Compressor

• Compressor Replacement

• Front Box Replacement

• Head Inspection

5.4.1 Compressor Replacement

1. Remove the module and mounting bracket from

the compressor by following the instructions

below for “Head Inspection”.

2. Remove the suction pressure switch conduit from

the module. This will completely isolate the mod-

ule and mounting bracket from the compressor.

3. Remove the voltage sensing wires from the termi-

nal posts. (figure 5.8)

4. Remove the motor sensor leads from the

sensor lead terminal strip. (figure 5.8)

Figure 5.8 4D Terminal Box Assembly

5. Remove the mounting screws in the terminal box

that attach the terminal box to the

compressor.

6. Lift the terminal box away from the compressor.

7. Remove the compressor from the rack using

accepted industry procedures for safety.

8. Install the new compressor, and mount the com-

ponents and accessories in reverse order of the

disassembly process.

• Take specific note to connect the red harness

leads (labeled “HPCO”) to the high pressure

cutout switch on the head. The high pressure

switch has leads. Verify the pressure setting

on the switch. When replacing the switch,

use only an Emerson Climate

Technologies, Inc. approved pressure

Voltage Sensing Leads Motor Sensor Leads

Discard “Snubber”

AE8-1337 R1

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 70 71

Komentáře k této Příručce

Žádné komentáře

Emerson E2 Návod k obsluze Strana 55

Komentáře k této Příručce

Související produkty a manuály pro Dálková ovládání Emerson E2