REMEHA Quinta Pro series Installation, User And Service Manual page 33

Fig.22 Connecting the frost thermostat
Tv
On/off
OT BL RL Tout Tdhw
Fig.23 Connecting an outside sensor
On/off
OT BL RL Tout Tdhw
Fig.24 Heating curve
1
90
2
70
50
30
10
-20 -10 0
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When an on/off thermostat is used, the pipes and radiators in a frost-sen­
sitive room can be protected by a frost thermostat. The radiator valve in
the frost-sensitive room must be open.
Tk
The central heating system can also be protected against frost in combina­
tion with an outside sensor. The radiator valve in the frost-sensitive room
must be open.
The frost protection works as follows with an outside sensor:
AD-0000049-01
An outside sensor can be connected to the Tout terminals of the connector
Ba
(accessory). In the event of an on/off thermostat, the boiler will regulate
the temperature using the set point of the internal heating curve (F). Vari­
ous parameter settings can be used to change the internal heating curve.
AD-0000048-01
If an outside temperature sensor is connected, it is possible to adapt the
internal heating curve. The setting can be modified using parameters
F
3
4
10 20
AD-3000038-01
Frost protection combined with on/off thermostat
1. Place a frost thermostat (Tv) in a frost-sensitive room (e.g. a ga­
rage).
2. Connect the frost thermostat (Tv) parallel to the on/off thermostat
(Tk) on the On/Off OT terminals of the connector.
Note
When an OpenTherm thermostat is used, it is not possible to con­
nect a frost thermostat parallel to the On/Off OT terminals. In that
case, implement frost protection of the central heating system in
combination with an outside sensor.
Frost protection combined with outside sensor
1. Connect the outside sensor to the Tout terminals of the connector.
At an outside temperature lower than -10°C (can be set with parameter
): the circulating pump switches on.
At an outside temperature higher than -10°C (can be set with parameter
): the circulating pump continues to run and then switches off.
Connecting an outside sensor
Ba Outside sensor
1. Connect the two-wire cable to the Tout terminals of the connector.
Note
An OpenTherm controller can also use this outside sensor. In that
case, the required internal heating curve must be set on the con­
troller.
Setting the heating curve
1
2
3
4
F Heating curve
, and .
6 Installation
,
33