TF7039GB_A_NOT
Page 34 of 48
7.1.1.
SETTINGS FOR USE WITH STRATIFIED STORAGE
If the unit is integrated into the building heating system according to the above recommendation, the factory
settings do not have to be adjusted. Only the following steps need to be taken:
▪
Attach the temperature sensor to the lower part of the buffer tank and connect it to input terminal 4
(terminal strip X2) (see circuit diagram)
▪
Ensure the buffer tank discharge pump (“P” in concept sketch) is regulated as described above.
Suitable temperature sensors are supplied with the unit in the control unit.
7.1.2.
SETTINGS FOR USE WITHOUT STRATIFIED STORAGE
Deviating from the above system diagram, the unit can also be used in conjunction with separate heating
and domestic hot water storage tanks. The addition of an outdoor temperature sensor enables dynamic tem-
perature control of the treated water and thus increases the energy efficiency of the system in this integration
variant. In this case, the following steps must be carried out:
▪
Remove the cable bridge on input terminal 16 (terminal strip X2)
▪
Fit an outdoor temperature sensor to input terminal 12 (terminal strip X2)
▪
Attach the temperature sensor to the lower part of the buffer tank and connect it to input terminal 4
(terminal strip X2)
▪
Attaching the sensor to input terminal 6 (terminal strip X2) on the domestic hot water storage tank
▪
Assemble and install the 3-way switch-over valves for switching between heating and domestic hot
water preparation (see circuit diagram)
▪
Set the value for the outlet temperature during hot water preparation to the desired setpoint (see
UVR module instructions)
▪
Set the desired heating curve for the heating backup (see UVR module instructions)
▪
Set the desired hot water temperature (see UVR module instructions)
Suitable temperature sensors are supplied with the unit.
The heating pipes must be protected against freezing in the event of frost without operating the
heat pump (e.g. by trace heating).
Circuit diagrams
and
operating instructions for the control module
(UVR) are supplied separately
with the unit.
