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7
2551868AB
Typical Schematic (All Top Connections)
ModuSat XR (ECO)
Note: Other connection arrangements are available
see page 10 for details.
Components
A
Primary / LTHW flow
B
Primary / LTHW return
C
Secondary / Domestic cold water
Inlet
D
Secondary /Domestic hot water
outlet
E
Secondary / Apartment
heating flow
F
Secondary / Apartment
heating return
G
Connection for safety
discharge
Primary Circuit Side
1
Insulated plate heat exchanger
(Heating)
2
Heating Pressure Independent
Control Valve with actuator
3
Insulated plate heat exchanger
(Domestic Hot Water)
4
DHW Pressure Independent
Control Valve with actuator
5
Heat meter
DHW Secondary Side Circuit
6
Flow sensor
Heating Secondary Side Circuit
7
Heating expansion vessel
8
Safety UFH thermostat (optional)
9
Pressure sensor
10
Safety relief discharge
11 Pressure gauge
12 Heating circulation pump
Controls & Other Items
13
Filling loop (External)
14 Electronic control board
15 ViewSmart room control unit
16 Flushing bypass kit
S1, S2 – temperature sensors as a part of
the heat meters
S3 – DHW temperature sensor
S4, S5 – heating flow and return
temperature sensors