5.6
Space Heating Through Floor Heating Loops and Fan Coil Units
Dual setpoint function application with or without two thermostat connect to the outdoor unit. The floor heating loops
and fan coil units require different operating water temperatures. To achieve these two set points, a mixing station is
required. Room thermostats for each zone are optional.
Figure 1-5.8: Space heating through floor heating loops and fan coil units
Legend
1
Outdoor unit
10
Distributor (field supplied)
2
Plate heat exchanger
11
Collector (field supplied)
3
Backup electric heater (customized)
12
Bypass valve (field supplied)
4
Internal circulator pump
FHL 1...n
Floor heating loops (field supplied)
5
Stop valve (field supplied)
FCU 1...n
Fan coil units (field supplied)
6
User interface
M1...n
Motorized valves (field supplied)
7
External circulator pump (field supplied)
T1…n
Room thermostats (field supplied)
8
Motorized 2-way valve (field supplied)
TA
Zone A thermostat (field supplied)
9
Mixing station (field supplied)
TB
Zone B thermostat (field supplied)
Notes:
1.
The example is just for application illustration; please confirm the exact installation method according
to the installation manual.
16