Emerson E2 Manual do Operador descarregar pdf (Página 60)

either a compressor or module is replaced. In this way

a record can be maintained and the user will be able

to assess the true history of the compressor. Using

the E2 Notebook feature is discussed in section 8.7.6

of the E2 Operation Manual.

5.8 Pressure Switch Replacement

The discharge and pressure switch adapters have

Schraeder valves in them. It is not necessary to

evacuate the compressor before replacing a switch. It

is imperative that an Emerson Climate Technologies,

Inc. approved pressure switch be used (see the part

number list in the Appendix). This will guarantee that

a Schraeder depressor is a part of the switch. The

Schraeder adapter enters the body with a 1/8” pipe

tap. Use a wrench to keep it from turning as the pres-

sure switch is loosened and removed from the

adapter, or while tightening the switch during installa-

tion.

Refer to figure 5.13 below.

Figure 5.13 Pressure Switch and Schraeder Adapter

5.9 “Hi-Pot” Testing

The motor may be electrically tested using a “Hi-Pot”

tester per Emerson Climate Technologies, Inc.

approved procedures without disconnecting the volt-

age sensing wires. If the high voltage Deutsch plug is

removed during test, be aware that several of the

exposed connector pins will have the tester voltage

on them.

5.10 Lifting Instructions

The recommended method to lift a compressor during

installation or removal is to install an eye-bolt in the

provided hole(s). If an eye-bolt is not available, a

strap may be used. However, care must be taken to

prevent damage to the sheet metal enclosures. Do

not attempt to lift the compressor with a strap around

the side box. Instead, the strap should be placed

behind the side box and directly around the compres-

sor as shown in figure 5.14. In order to position the

strap, it may be necessary to loosen or remove screw

“B” holding the side box to the terminal box.

Figure 5.14 Lifting Strap Placement

AE8-1337 R1

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 70 71

Sem comentários

Emerson E2 Manual do Operador Página 60