Technical data
64
CTC EcoZenith i250 
Installation
Pipe connection for CTCEcoAir400 Pipe connection for CTCEcoPart400
Pipe connection for CTCEcoZenithi250H
(The picture shows the back of the product)
1.  Incoming (heated 
water) from heat 
pumpØ22
2.  Outgoing (cold water) 
to heat pump,union 
3/4
3.  Preassembled 
charge pump on 
CTCEcoZenithi250L 
installed on 250H 
(behind the diverting 
valves). The pump 
pumps water to the 
connected heat pump.
4.  Outgoing (heated) water to boiler.
5.  Incoming (cold) water from boiler.










