Cetetherm AquaEfficiency
Installation, service and operating instruction
8
4.1.2
Example of Flowchart with eventual optimised use of primary vessel
4.1.3
Other possible drawing
Not recommended for low return temperature applications.
4.2
Installation of an AquaEfficiency Indirect unit (Semi Instantaneous)
ID.
NAME
ID.
NAME
A
Primary inlet
Pt1
Primary vessel temperature sensor
B
Primary outlet
S1
DHW temperature sensor (master)
CW
Cold Water inlet
S2
Secondary inlet temperature sensor
DC
Drain valve
S3
Primary return temperature sensor
DHW
Domestic Hot water
V
, V’
Shut-off valve
HE
Heat Exchanger
V3V
3-port control valve with actuator
NR
Non-Return Valve
VR
Balancing valve
PC
Charging pump (secondary)
STBI
Inertial condensation boiler storage tank
PP
Primary pump
STP
Primary storage tank
PR
DHWC pump
STS
Secondary storage tank
PRV
Safety valve
