BWT ET-NU25 Instrucciones De Colocación página 21

• Malfunction of the boiler's main thermostat (the water in the primary circuit is not hot enough).
• Under sizing of the boiler.
«PI» is displayed continuously on the screen, and the heat exchanger does not run: check the sensor
connections or replace the sensor.
6. WINTERIZING
• Cut the power supply to the heat exchanger accessories (circulating pump, thermostat, etc.)
• Prepare the filtration group for winterizing by draining the various lines.
• Carefully drain the secondary circuit lines, especially if the secondary circuit runs outdoors between the
heat exchanger and the filter.
• Drain the heat exchanger body (using the drain valve on the installation or by loosening one of the
unions.
Kw Code
25 9200200
40 9200400
60 9200600
90 9200900
25 9202200
40 9202400
60 9202600
90 9202900
CHAUFFAGE ET DÉSHUMIDIFICATION
PRODUCT CODES
Heat exchanger BWT ET-NU 25 kW
Heat exchanger BWT ET-NU 40 kW
Heat exchanger BWT ET-NU 60 kW
Heat exchanger BWT ET-NU 90 kW
Heat exchanger BWT ET-CA 25 kW
Heat exchanger BWT ET-CA 40 kW
Heat exchanger BWT ET-CA 60 kW
Heat exchanger BWT ET-CA 90 kW
Description
2021/07 - Indice de révision : K - Code : 33035
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