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Technical Sales Documentation Technical information Department Heading No 5 Wall-hung gas condensing boilers VIVADENS MCR, MCR-P, MCR BIC Product evolution P5253 JS F 67580 Mertzwiller N° IT2621 26/11/2014 1. Description of the modifications A thermal fuse has been added in the upper part of the heat exchanger front plate. The thermal fuse is connected in series with the overheating safety thermostat of the heat exchanger.
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2. Spare parts Kits available in the Spare part Centre: Reference Description Heat exchanger front plate insulation disk 7619579 (Insulation + Thermal fuse) 7619082 Maintenance kit (see picture below) For more detailed information, see the leaflet delivered with the kit : Reference 7619580 (Click on the reference to open the link).
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4. Service operations The front plate insulation disk is an important part to ensure safe operation of the boiler and must therefore be in good condition. A damaged front plate insulation disk can lead to leakage on the flue gas side. Check the front plate insulation disk for cracks, damage, moisture, ageing or distortion.