Technical data
56
CTC EcoZenith i250
Installation
12.3 Connection to heat pump
The heat pump can be connected on the sides, back, underneath or on
top. At least Ø22 mm copper pipe must be used when connecting the
CTCEcoZenithi250 to the CTC EcoAir 406-410 and CTCEcoPart406-410
heat pumps. CTC EcoPart 412 can also be connected to EcoZenith i250
providing that the function exact primary flow is activated. The charge pump
for the heat pumps is factory-installed in the CTCEcoZenith i250L.
The CTC EcoZenith i250 L has pipes at the rear right edge for connection of
the heat pump.
CTC EcoAir's lower connection (5) is connected to the right connection (2)
when viewed from the front, so that water is pumped out to the heat pump.
CTC EcoAir's upper connection (4) is thus connected to the left connection
(1).
The CTC EcoZenith i250 H heat pump is connected directly to the provided
charge pump located under the tank. The heat pump’s lower connection (5)
must be connected to the charge pump (3) so that water is pumped out to
the heat pump. The heat pump’s upper connection is connected to the right
diverting valve (viewed from the front).
Draining: A drain valve must be fitted to the EcoZenith’s left connection
(where the charge pump is mounted). It functions as drainage for both the
boiler and the radiator system.
Pipe connection for CTC EcoZenith i250 L
1. Incoming (heated water) from heat pump
2. Outgoing (cold water) to heat pump