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Extended Installation Instructions for the Heat Pump Manager (Heating/Cooling)
12.4.2 Activation of Cooling Functions
Special regulatory functions are performed when cooling
operation is activated. The cooling controller assumes these
cooling functions independently of the remaining regulatory
functions.
The cooling functions can fail to activate due to the following
reasons:
The external temperature is below 3 °C (danger of frost)
The external temperature for reversible air-to-water heat
pumps is below 15 °C
12.4.3 Deactivation of Circulating Pumps in Cooling Operation
In the case of a heat pump heating system with two heating
circuits, the heat circulating pump of heating circuits 1 or 2 can
be deactivated in cooling operation.
The heat circulating pump of heating circuit 1 (M14) is not active
in cooling operation if silent-only cooling is configured.
The heat circulating pump of heating circuit 2 (M15) is not active
in cooling operation if dynamic-only cooling is configured.
NOTE
The potential-free contact N17.2 / N04 / C4 / NC4 can be used to switch
heating components in heating or cooling operation (e.g. room
temperature controllers)
Operating
Preconfiguration
mode
1. Heating
2. Heating
circuit
circuit
Heating
Yes
Heating
Yes
Heating
Yes
Heating
Yes
Heating
Yes
Cooling
Yes
Cooling
Yes
Cooling
Yes
Cooling
Yes
Cooling
Yes
1. Not active during passive cooling with bridge A5 inserted
Tab. 12.1: Overview of circulating pumps and mixer control in heating and cooling operation (active and passive)
Settings
Dynamic
Silent
cooling
cooling
No
Yes
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
There is no cooling controller fitted or the connection is
broken
Neither silent nor dynamic cooling has been selected with
"Yes" in the settings
In all these cases, the cooling operating mode will remain active.
However, the regulation system responds as in the summer
operating mode.
Passive cooling
The cooling system can be supplied using either the existing heat
circulating pump (M13) or an additional cooling circulating pump
(M17).
NOTE
The cooling circulating pump (M17) operates continuously in "Cooling"
operating mode.
With passive cooling, the operating behaviour of the heat
circulating pump (M13) can be influenced by removing or
inserting cable bridge A5, depending on the hydraulic integration.
Bridge A5
Operating mode
inserted
Heating
M13 active
Cooling
M13 not active
1. Heating
2. Heating
Main circuit
circuit
circuit
M13
M14
M15
Active
Active
Not Active
Active
Active
Not Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
1
Active
Not Active
Active
1
Active
Active
Active
1
Active
Not Active
Active
1
Not Active
Active
Active
1
Active
Active
Active
12.4
Bridge A5
removed
M13 active
M13 active
Mixer for
Cooling
heating cir-
cuit 2
M17
M22
Continuous
not active
OPEN
Continuous
not active
OPEN
not active
Regulation
not active
Regulation
not active
Regulation
Continuous
Active
CLOSED
Active
Regulation
Continuous
Active
CLOSED
Active
Regulation
Active
Regulation
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