Hydraulic Diagrams; Ipump A 3-11 With Direct Heating Circuit And Hot Water Circulation - iDM iPump A 3-11 Technical Documentation Installation Instructions

1 1 .1. i Pump A 3 - 11 w it h dire c t h e at ing cir c u i t and ho t w at e r c i r c u l at i o n
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 additional pump and a mixer for the heating circuit is not necessary. An
overfl ow valve must be installed in the direct heating circuit to guarantee a minimum fl ow. When using a direct
heating circuit, 25 % of the zones have to be open permanently. 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.
The connection on drinking water side must be made according to the relevant standards and regulations (such
as DIN1988 and DIN4753). In the cold water line a safety valve and a backfl ow preventer must be installed.
OS
T
B32
When using direct heating circles and zone-valves, at
least 25 % of the zones have to be opened all the
time.
Exception: At systems with Navigator Pro not any
zones should be open!
Attention!
Mount a dew point switch on the flow pipe in the heating circuit
distributor!
B5 Dew point switch (regulated heating circuit)
B17 Dew point switch (unregulated heating circuit)
iPump outdoor unit
(C) IDM ENERGIESYSTEME GMBH
Refrigerant pipes
Installation instructions iPump A 3-11

11. Hydraulic diagrams

B31
rH%
HW
P
CW
Circulation
M64
B48
T
B41 B4 B4 1 1
T
TCE
M73
iPump indoor unit
hydraulic diagram
RE
B62
T
HC (A)
B
M63
A
B2
B33
T
T
B34
43