Immergas Zeus Superior - Boiler Pump; Primary Heat Exchanger

7
STZSkW ed 12/07 ZEUS Superior kW
Technical Documentation
Technical Documentation
Boiler pump (1).
e boiler pump operates on the primary circuit return, im-
mediately downstream of the 3-way valve which is connected
to. It is part of the integrated multi-function group made out
of composite material.
e automatic vent valve (2) is also housed in the hydraulic
group casing.
Primary heat exchanger (1).
e primary heat exchanger is a lamellar water-gas heat ex-
changer with copper pipes and ns (No. 77 ns on the 24 kW,
No. 89 ns on the 28 kW version and No. 105 ns on the 32 kW
version). e NTC central heating ow probe (2) and the safety
thermostat (3) are positioned on its outlet pipe (ow).
Primary heat exchanger is assembled with four tubes connected
in series (4).
Pipes with threaded ttings connect it to the pump ow and
the primary circuit ow.
Return
A = Head available to the system at maximum speed with by-pass excluded (adjusting screw completely tightened)
B = Head available to the system at maximum speed (screw tightened by 1.5 revulution with respect to the completely loose adjusting screw)
C = Head available to the system at maximum speed with by-pass open (adjusting screw completely loose)
ZEUS Superior 32 kW
Head (m H
2
O)
Head (kPa)
Flow rate Litres/h
A
B
C
1
3
4
2
1
2
Flow