Friedrich Hazardgard SH20M50B Installation & Operation Manual page 24

Hazardous location room air conditioner

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Chassis Wiring and Preparation (ATEX & IECEx Models)

STEP 4 Complete junction box wiring, cover and tighten cover screws (Figure 34-6) to prevent ingress from dust and moisture.

NOTE: Per EN/IEC 60079-0, external grounding or earthing may be necessary.

If required, use provided external ground clamp which can accept two cables of up to 6mm (Figure34-7).

Figure 34

NOTE:

This air conditioner shall be installed in accordance with national wiring regulations of the country where installed.

Electrical connections to equipment must only be carried out by qualified personnel per NEC/CEC 501.10 (B) EN/IEC 60079-14.

Repairs affecting hazard location protection must be carried out by a qualified electrician in accordance with NEC/CEC 501.10

(B) EN/IEC 60079-19.

Figure 35

INSTALLATION

ELECTRICAL JUNCTION

BOX

WITH EMI FILTER

EXTERNAL GROUND

-See Note-

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