Section 5 - Commissioning
COMMISSIONING
61
Installation and Maintenance
Figure 48. Logic Air Compensation Curves vs Flow Temperature Settings Available
5.7.3 Weather Compensation Variants
5.7.3.1 Independent Weather Compensation
Weather compensation regulates and maintains optimum
flow temperatures which allows the heat pump to run more
efficiently.
This function will modulate the water flow temperature relative
to the external ambient temperatures. The lower the ambient
temperature, the higher the flow temperature and vice versa.
The below graph illustrates the available gradients referenced
at numerous outdoor temperatures against the heat pump
water flow temperatures.
The flow temperature is calculated based on the heating curve,
depending on the composite outside temperature.
This compensation variant demands a correct adjustment
of the heating curve since in that case the control gives no
consideration to the room temperature.
The weather compensation function is initiated with a
permanently enabled outdoor sensor supplied with the Heat
Pump unit. The below Illustrations have been provided for
the location of the outdoor sensor and the relating resistance
curve according to the mandatory “QAC34” outdoor sensor
installation:
The flow temperature is calculated via the heating curve
and is dependent on the outside ambient temperature. This
compensation variant calls for a correct adjustment of the
heating curve because with this setting the control system
gives no consideration to the room temperature.
For additional information the parallel displacement options
have also been provided to allow optimisation of the
weather compensation curve according to dwellings comfort
temperature
Figure 49.
Outdoor Sensor Specification
90
80
70
60
50
55
40
30
° C
100
° C
20
10
-20
1
0.75
1.75
0.5
0.25
1.25
0
-10
2
1.5
2.75
3
2.25
2.5
Outdoor temperature ºC
Heat pump application only
Standard radiator
Heating curve gradient
Low temperature radiator
Under
Dynamic radiators
floor heating
Heating flow temperature ºC
43907
Outside sensor QAC34
Outside sensor
Cable 2 x 0.75 mm²
Interconnection between
outdoor unit and control box
Phase, Neutral, Earth, Communication bus)
Cable 4 G 1.5 mm²
10000
2490
1000
338
-50
-25
0
25
50
75
˚
C
Ω
1 k
Ω, 25 ˚
C
to be located as per guidance in section
4.4.1 Outdoor Sensor Installation
Содержание Logic Air DHW IDEPLUHP180DUOPPSZ
Страница 80: ...80 Installation and Maintenance Appendix 1 1 SYSTEM SCHEMATICS 1 1 1 Schematics Key Legend...
Страница 81: ...Appendix 81 Installation and Maintenance 1 1 2 Logic Air Two Zone Pre Plumbed Cylinder with Integrated Buffer...
Страница 82: ...Appendix 82 Installation and Maintenance 1 1 3 Logic Air Single Zone Pre Plumbed Cylinder...
Страница 92: ...92 Installation and Maintenance Notes...
Страница 93: ...93 Installation and Maintenance Notes...