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4 TECHNICAL DATA EFW WATER HEATERS
Functional introduction
The EFW water heaters are water heaters with a maximum high efficiency. Such a performance can be reached
by, amongst other things, using a special heat exchanger made of stainless steel. This allows the flue gases to cool
down below the condensation point, and so release extra heat. This has an immediate positive impact on the effi-
ciency.
The water heater is set for Natural gas. (G20)
Fuel used should have Sulphur rates with a maximum annual peak over a short period of time of 150 mg/m
ppm average) and an annual average of 30 mg/m
Water heater control includes:
▪
Cascade control for up to sixteen water heaters
▪
Remote operation and heat demand indication from each water heater
▪
Anti-Legionnaires' disease function.
Connections for:
▪
Water heater pump
▪
PWM control for external water heater pump.
▪
External flow switch or external safety device.
▪
Modbus
Location of version numbers
Parameter Version
- To be found on the small sticker on the side of the
burner controller.
v.B = "Version B" e.g.
Burner Controller Software Versions
– Press the menu button
Information
Software Versions
Boiler Status
Boiler History
Error Log
3
. (22 ppm average)
▪
▪
▪
, go to Information and then to Software Versions.
i
E93.1804.014
External system sensor
Tank sensor.
External Ignition coil
Burner Controller Hardware Version
– To be found on the second line of the white sticker
on the side of the burner controller.
E.g. 957MN25_3Ri4n
Software Versions
Display
Boiler
Device Group
3
(110
[63EF 83BC]
[5C79 14A9]
900MN
13
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