Ipump A 3-11 With Direct Heating Circuit, Cooling, Hot Water Circulation And One Mixer Heating Circuit - iDM iPump A 3-11 Technical Documentation Installation Instructions

11. Hydraulic diagrams
hydraulic diagram
1 1.2. iP ump A 3 - 11 w it h dire c t h e at i ng cir c u i t , co o l i ng, ho t wa t er c ir cu lat io n and o n e mi-
xer h eat in g c irc u it
The iPump A 3-11 is a heat pump with inverter technology for continous power control. Therefore it is possible
to provide direct heating circuits. An overfl ow valve must be installed in the direct heating circuit to guarantee
a minimum fl ow. Thereby the clocking of the heat pump can be avoid. When using a direct heating circuit, 25
% of the zones have to be open permanently. Optional it is possible to realise as a secound heating circuit a
mixer heating circuit. If a mixer heating circuit is confi gured in addition to the direct heating circuit, in the direct
heating circuit a heating circuit pump (M32) must be installed. The pump supports the heating circuit B in case
of a simultaneous request of both heating circuits.
In heating systems with the single-room control NAVIGATOR Pro no zones need to remain open! The safety
group and the expansion tank must be installed on heating side. As shown in the scheme, it is possible to
install an optional circulation for the hot water circuit. It is possible to cool with the iPump without a cooling
buffer. For dew point control, a room humidity sensor must be installed and a dew point monitor must be placed
on the fl ow pipe in the heating circuit manifold!
OS
T
B32
iPump outdoor unit
44
Refrigerant pipes
Installation instructions iPump A 3-11
RE (B)
T
HW
P
Circulation
CW
M64
A
B48
T
B41 B4 B4 1 1
T
TCE
T
B34
M73
iPump indoor unit
(C) IDM ENERGIESYSTEME GMBH
RE (A)
B62 B61
T
HC (B) HC (A)
FS
T
B51
M31
M32
M41
B
M63
B2
B33
T