Electrical Wiring And Installation; Combi Heater Safety Guard; Effect Of Moisture During Transport And Storage - Sawotec NRC-80NS Bedienungsanleitung

3.2.

Electrical Wiring and Installation

A certified electrician must do the installation of the heater in accordance with applicable local
regulations to ensure safety and reliability of electrical connections. Improper electrical
connections can cause electric shock or fire. The connection cable must be of rubber cable type
H07RN-F or its equivalent.
NOTE: Due to thermal embrittlement, the use of PVC-insulated wire as connection cable of the
Combi Heater is forbidden.
Refer to the electrical diagram in Figure 7.
3.3. Installation of external control unit and sensors
Refer to the external control unit's manual for its installation and connection to the
Combi Heater and installation of safety sensors.
3.4.

Combi Heater safety guard

During operation the Combi Heater gets very hot. To avoid the risk of contact with
the Combi Heater, it is recommended to affix a safety heater guard. Figure 9 provides
guidance on installation of such a heater guard.
3.5.

Effect of moisture during transport and storage

When performing the final inspection of the electrical installation, a "leakage" may be
detected when measuring the Combi Heater's insulation resistance. The reason for this is that
the insulating material of the heating resistors has absorbed moisture from the air (during
storage and/or transport). After operating the heater for a few times, the moisture will be
removed from the resistors.
Abb. 8
Fig. 8
20mm
5mm
Min 20mm
23
ENGLISH