Spirax Sarco LC2250, Инструкция по установке и обслуживанию

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IM-P402-130 EMM Issue 9 16
Note: Before installing read the 'Safety Information' in Section 1.
Warning:
Isolate the mains supply before touching any of the wiring terminals as
these may be wired to hazardous voltages.
Use only the connectors supplied with the product, or spares obtained
from Spirax-Sarco Limited. Use of different connectors may compromise
product safety and approvals. Ensure there is no condensation within the
unit before installing and connecting the power.
Connecting the mains supply incorrectly can cause damage and may
compromise safety.
5.1 General wiring notes
Every effort has been made during the design of the product to ensure the safety of the user
but the following precautions must be observed:
1. Maintenance personnel must be suitably qualified to work with equipment having
hazardous live voltages.
2. Ensure correct installation. Safety may be compromised if the installation of the product
is not carried out as specified in this IMI.
3. The design of the product relies on the building installation for overcurrent protection
and primary isolation.
4. Overcurrent protection devices rated at 3 amps must be included in all phase conductors
of the installation wiring. If overcurrent protection is included in both supply wires then the
operation of one must also cause the operation of the other. Refer to IEC 60364 (Electrical
Installations of Buildings) or National or Local standards for full details of requirements
for overcurrent protection.
5. A 3 A quick-blow overcurrent protection device must be fitted to the relay circuit(s).
6. Relay contacts must be supplied on the same phase as the mains supply.
7.
The product is designed as an installation category III product.
8. Install wiring in accordance with:
-
IEC 60364 - Low-voltage electrical installations.
-
EN 50156 Electrical Equipment for furnaces and ancillary equipment.
-
BS 6739 - Instrumentation in Process Control Systems: Installation design and
practice or local equivalent.
-
National and Local Electrical Code (NEC) or Canadian code (CEC) for the US and
Canadian markets. Note; use NEC Class 1 wire with a temperature rating greater than
75 °C. If the cable is to be exposed to a higher temperature, then a higher temperature
rating needs to be selected.
9. It is important that the cable screens are connected as shown in order to comply with the
electromagnetic compatibility requirements.
5. Electrical installation