Resetting Factory Settings; Setting The Parameters; Setting The Heating Curve - Baxi 224 Combi 2 Installation And Service Manual

Name Description
Maximum preheating time [min] to reach the next
CP750 programmed comfort setpoint (with outside sensor
and programming via room unit)
Timer programme selected for DHW
0: Program 1
DP060
1: Program 2
2: Program 3
Reduced temperature setpoint for the domestic hot
DP080
water tank [°C]
Domestic hot water temperature setpoint for the
DP337
holiday period [°C]
9.3

Setting the parameters

Fig.64 Outside sensor connection
Factory
value
0
0
35
10
Danger
For low temperature heating installations, modify the
CP000 parameter according to the maximum flow
temperature.
The factory settings for certain settings may differ based
on the market the product is destined for.
9.2.1

Resetting factory settings

To reset the factory settings, modify the CN1 and CN2 settings with the
data on the boiler data plate.
Caution
Please note that resetting the CN1 and CN2 settings with data on
the data plate deletes any previous setting.
In case of gas change, for example, remember to set the correct
calibration of the gas valve and the fan speed.
9.3.1

Setting the heating curve

Remove the jumpers. Connect the outside sensor to the T/OUT port on
the connection board. Connect the "On/Off" type room thermostat or the
"Open Therm" type room unit to the O/T port on the connection board.
Important
An ON/OFF room thermostat (also H.V. 230V) can be connected
to the RT connector.
On the OT connector it is possible to connect a low voltage or
Open therm, Rbus, room thermostat.
To use a H.V. thermostat remove the link between RT
connector and maintain the link on the OT connector.
If you want to use an OT thermostat remove the link between
OT connector and maintain the link on the RT connector.
Important
If the heat curve is set via an OpenTherm room unit, do not set the
heat curve with these parameters.
See
9.1 Accessing the settings to access the heating curve setting.
To set the curve, change the following settings:
CP000: Heating flow maximum temperature set point.
CP200: room temperature setpoint for zones 5.0 to 30.
CP210: comfort mode climatic curve offset from 15 to 90 (with external
probe). Do not change the slope of the curve.
CP230: setting of the slope of the climatic curve from 0.0 to 4.0.
Important
Set the type of outside sensor model used via the AP056 setting
Minimum Maximum
0 240
– –
10 60
10 60
9 Settings
Level
Installer
User
User
User
Combi 2 57