Enertech CTC EcoLogic Family series, Installation And Maintenance Manual, Page: 94 / 128

94
CTC EcoLogic Pro/Family
For the installer
9.2.4 CTC EcoLogic systems 2 and 3 – Additional heat
In EcoLogic system 2, the additional heat source (E1, E2 or E3) is connected
before the hot water tank, while in EcoLogic system 3 it is connected after
the hot water system. Additional heat (E4) can then be connected directly to
the tank instead.
When additional heat (E1) is connected, the mixing valve (Y2) is used to
connect the add heat to the system (not to heating circuit 2).
If the buffer tank is connected, the mixing valve (Y4) is used to connect the
tank to the system (not to heating circuit 4). Sensor B6 should be installed in
the buffer tank.
Sensor B10 should be connected to measure the temperature coming from
the additional heat.
System 2
DHW
tank
DHW
tank
Additional heat
Buffer tank
HP A1
HP A1
System 3
Additional heat
!
If charge pump G11
is used for the flow
heater, the control
signal must be taken
from CTC EcoLogic.