Danfoss DLX 4.6 Uživatelská příručka stáhnout pdf (Strana 82)

82 User Guide DLX Series L00410623-1

Figure 8.2.7: Checking the AC varistors

Table 8.1: Measure if the varistors are damaged

Measurements Undamaged Replace

Between GND (1) and the left VDR (2)

0 Ω ∞ Ω

Between

(3) and the middle VDR (4)

0 Ω ∞ Ω

Between GND (3) and the right VDR(5)

0 Ω ∞ Ω

Replacement Procedure

• Use the service tool delivered in the packaging with the new varistors ordered from

Danfoss. The service tool is designed as a fork, and can open up all terminal clamps

simultaneously.

Figure 0.1: Service tool to open the varistor terminal clamps

• Open the terminal clamps and remove the damaged varistor(s).

• Comply with Figure 8.2.5 and 8.2.6 to get the position of the varistors correct.

• Also use the service tool to open the clamps when inserting the new varistor(s).

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Danfoss DLX 4.6 Uživatelská příručka Strana 82