Connection Options For The Standard Pcb - REMEHA Quinta Ace 30 Installation And User Manual

5 Installation
Fig.16 Connecting modulating thermostat
BL RL
OT
Fig.17 Connecting the on/off thermostat
BL RL
Tk
Fig.18 Connecting the frost thermostat
BL RL
Tk Tv
26
5.7.3
Various thermostats and regulators can be connected to the standard
PCB.
The boiler is fitted with an R-Bus connection as standard. This connection
is also compatible with OpenTherm. This enables the user to connect
modulating OpenTherm thermostats (such as iSense) or R-Bus
thermostats (such as eTwist) without any further adjustments being made
Tout Tdhw
to the appliance. The boiler is also suitable for OpenTherm Smart Power.
AD-4100101-02
The boiler is suitable for connection to a two-wire on/off ambient
thermostat (Tk).
Tout Tdhw
AD-4100102-02
When an on/off thermostat is used, the pipes and radiators in a frost-
sensitive room can be protected by a frost thermostat. The radiator valve
in the frost-sensitive room must be open.
Tout Tdhw
AD-4100103-02

Connection options for the standard PCB

General
Connecting modulating thermostat
1. In the case of a room thermostat: install the thermostat in a reference
room.
2. Connect the two-wire cable for the thermostat to the R-Bus terminals
for the connector. It does not matter which wire is connected to which
cable clamp.
Important
If the tap water temperature can be set on the OpenTherm
thermostat, the boiler will supply this temperature, with the value
set in the boiler as a maximum.
Connecting the on/off thermostat
1. Install the (power stealing) thermostat in a reference room.
2. Connect the two-wire cable for the thermostat to the R-Bus terminals
for the connector. It does not matter which wire is connected to which
cable clamp.
Frost protection combined with on/off thermostat
1. Place a frost thermostat (Tv) in a frost-sensitive room (e.g. a garage).
2. Connect the frost thermostat (Tv) parallel to the on/off thermostat (Tk)
on the R-Bus terminals for the connector.
Warning
If a Remeha eTwist or OpenTherm thermostat is used, a frost
thermostat cannot be connected in parallel to the R-Bus terminals.
In that case, implement frost protection of the central heating
system in combination with an outside sensor.
For more information, see
Additional documentation, page 10
7684359 - v.06 - 10012019