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4.1.3. Parameter Information
WARNING
When accessing the parameter menu it is vital that you are only accessing
and changing values that are valid and intended for use by an installer
or service engineer e.g. gas type, system config type or pre-heat values
and other installation related parameters (FOR A FULL LIST OF APPROVED
VALUES PLEASE CONTACT WARMHAUS TECHNICAL – 02071646233, or
Heat Merchants Customer Services at 0906 442300)
this on the operation of the boiler and fully check the combustion of the
appliance to ensure the boiler is operating safely.
Some parameters are serial number specific and so the serial number must
always be checked against the data written in the parameter tables.
In some cases when a parameter value is changed the boiler will display an
error code e.g. parameter 2 is the gas type if it is changed from either NG to
LPG or LPG to NG then the boiler will display E62 which is ensuring you run
a combustion calibration for safety reasons to combat against changing the
value by error and to ensure the combustion has been altered and set up
with the correct fuel.
Service Mode
Designation:
Ewa Combi Boiler wall-hung boilers
Object
Type-model / Technical data
Mark (s) of conformity
Procedure service mode
Ewa Combi Boiler
granted by Warmhaus R&D
Pos No Operation
Description GB
0
Attention:
This procedure must be applied by authorised persons and valid for only condensing boiler.
Attention
: Serviceman time out is 30 Minute.
1
"Push two button MODE + RESET simultaneously
Attention:
Make sure the all radiator valves are opened and during serviceman mode if boiler can reach the
maximum CH limit temperature otherwise process will interrrupt. Make sure boiler frontal casing is totally
closed and sealing of the boiler body is secured during serviceman mode."
2
Wait until the approval circle complete on the LCD and release buttons.
3
When the approval circle is completed the "LO" (minimum power) will be displayed on the screen. Wait 45
seconds to be stable.
4
For "HI" mode (maximum power), press the "+" button.
5
The "HI" will be displayed on the screen. Wait 45 seconds to be stable.
6
It will be possible to bring boiler at maximum power (HI) by (+) or minimum power (LO) by (-).
7
When the serviceman mode measurements are complete, push two button MODE + RESET simultaneously
to EXIT.
8
Wait until the approval circle complete on the LCD and release buttons. In this way EXIT the serviceman
mode.
4.2. Service Mode
Summary of Contents for EWA 2525C
Page 1: ...CONDENSING COMBI BOILERS INSTALLATION SERVICE MANUAL EWA 2525C 25 kW EWA 2530C 30 kW...
Page 2: ......
Page 3: ...3 warmhaus co uk...
Page 57: ...57 warmhaus co uk...
