21
FUSION COMBI W 50/FUSION COMBI F 80
3.6.3
Connecting a 2-wired two room thermostats for two zones (manual mode)
In this type of configuration, 2-wired 2 room thermostats will be connected, one in inputs
7
and
9
for
the zone 1 (
TAF
cooling thermostat) and the other in inputs
7
and
8
(
TAC
heating thermostat) for the
zone 2. Each of them will manage the operation of a different circulation pump,
BC
the pump of the
zone 1 hydraulic circuit and
BF
the pump of the zone 2 hydraulic circuit. Each thermostat must be of
the type compatible with the operation for which it has been installed, heating or cooling. These
thermostats could also be of the two-wire heating/cooling switched type. Unlike the three-wire
heating/cooling switched type thermostat, the 2-wire one does not allow selecting the operating mode
(Heating /Cooling ) only on the thermostat itself (automatic mode). It will be necessary to select
the operating mode, both in the thermostat and in the heat pump. For this room thermostat
management to function correctly,
the heat pump and the thermostat must be configured for
the same and only operating mode, Heating or Cooling
.
ATTENTION: Check that for this room thermostat management to function correctly the
heat pump and the thermostat must be configured for the same and only
operating mode, Heating or Cooling.
ATTENTION: For the correct management of the DUAL CLIMA R heat pump with the
FUSION COMBI module with two-wire room thermostats, it will be
essential to set the value 3 through parameter P27 of the DUAL CLIMA R
heat pump's Technician menu and the value 2 through parameter P26 from
the Technician menu.
ATTENTION: For correct operation with this configuration, check that the jumpers between
“C, H and COM” are connected as standard on the DUA
L CLIMA R heat pump
component strip (see "Connection Diagram").
The following diagram describes how to make the connections of the room thermostats in the
FUSION
COMBI
module, for correct operation.
