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Product description
EN
180-2 DN 25 RTA / 180-3 DN 25 RTA
4.4.1
PrimoTherm® 180-2 DN 25 RTA
In the case of this version, the individual operating phases are controlled
by the boiler control of the mixer.
- Return storage "
A
"
- Bypass "
B
"
4.4.2
PrimoTherm® 180-3 DN 25 RTA
When the boiler heats up, the condensation protection valve is fully closed
in the direction of the consumer (return storage A). The liquid coming from
the boiler is recirculated in the small circuit (bypass
B
), which causes the
boiler temperature to increase more rapidly.
Fig. 3: Start mode (heating up of the boiler), transition phase when opening temper-
ature is reached, and regular operation
Fig. 4: Start mode (heating up of boiler)
A
B
A
B
