Technical data
57
CTC EcoZenith i250 
Installation
4.  Outgoing (heated) water to boiler.
5.  Incoming (cold) water from boiler.
Pipe connection for CTC EcoAir 400 Pipe connection for CTC EcoPart 400
Pipe connection for CTC EcoZenith i250 H
(The picture shows the back of the product)
1.  Incoming (heated 
water) from heat pump
2.  Outgoing (cold water) 
to heat pump
3.  Preassembled 
charge pump on 
CTC EcoZenith i250L 
installed on 250 H 
(behind the diverting 
valves). The pump 
pumps water to the 
connected heat pump.










