CTC Union EcoZenith i555 Pro 1x230V, Installation And Maintenance Manual

Page: 74 / 168

74 CTC EcoZenith i555 Pro
7.9.10 Settings External buffer tank
The buffer tank is charged from the lower tank of the
EcoZenith but can be recharged in both the upper and
the lower tanks.
This menu bar is displayed if "Buffer Tank" has been
defined in the "Installer/Define/External Buffer Tank"
menu.
dT lower ext °C 7 (3...30)
The temperature difference between the lower tank of
the EcoZenith and the lower part of the external buffer
tank which controls the conditions for starting the
transfer from the EcoZenith to the external buffer tank.
This setting applies to charging of solar energy when a
heating need is present on the heating circuit.
dT start upper °C 7 (3...30)
The temperature difference between the upper tank
of the EcoZenith and the upper part of the external
buffer tank which controls the conditions for starting the
recharging from the external buffer tank to the upper
tank in the EcoZenith.
dT stop upper °C 3 (1...30)
The temperature difference between the upper tank of
the EcoZenith and the upper part of the external buffer
tank which controls the conditions for stopping the
recharging from the external buffer tank to the upper
tank in the EcoZenith.
Charge start lower °C 80 (20...90)
The temperature in the lower tank of the EcoZenith at
which transfer to the external buffer tank should start.
dT start lower °C 7 (3...30)
The temperature difference between the lower tank
of the EcoZenith and the external buffer tank which
controls the conditions for starting the recharging
from the external buffer tank to the lower tank in the
EcoZenith.
dT stop lower °C 3 (1...30)
The temperature difference between the lower tank
of the EcoZenith and the external buffer tank which
controls the conditions for stopping the recharging
from the external buffer tank to the lower tank in the
EcoZenith.
Menu: "Installer/Settings/External buffer tank".