Thermia Calibra Installation Guide

1.5 Maximum length of collectors
Caution The collector length must be designed for energy extracted from the
borehole/ground, which is required for the operation of the heat
pump.
In the figures below you can see what approximate operating brine ∆T you can achieve according to collector length and heating ca-
pacity.
The collector lengths may be applied independently on which heat source is used for the collector circuit (vertical/horizontal). In most
applications a ∆T 3-5
0
K is desired for most efficient running.
The lengths of the collectors are based on ethanol 30% at 0°C. (PEM40)
200
300
400
500
600
700
800
900
1000
2,00 3,00 4,00 5,00 6,00 7,00 8,00
Collector Length m
Hea!ng Capacity kW
Calibra 7 - B0W35 with PEM40x2.4
DT = 3 K
DT = 3.5 K
200
300
400
500
600
700
800
900
1000
2 3 4 5 6 7 8
Collector Length m
Hea!ng Capacity kW
Calibra 7 - B0W55 with PEM40x2.4
DT = 3 K
100
200
300
400
500
600
700
800
900
1000
4 6 8 10 12
Collector Length m
Hea!ng Capacity kW
Atlas & Calibra 12 - B0W35 with PEM40x2.4
DT = 3 K
DT = 4 K
DT = 3.5 K
DT = 4.5 K
200
300
400
500
600
700
800
900
1000
4 6 8 10 12
Collector Length m
Hea!ng Capacity kW
- B0W55 with PEM40x2.4
DT = 3 K
DT = 4 K
DT = 3.5 K
Atlas & Calibra 12
0
100
200
300
400
500
600
700
800
900
1000
6 8 10 12 14 16 18
Collector Length m
Hea!ng Capacity kW
Atlas 18 - B0W35 with PEM40x2.4
DT = 3 K
DT = 4 K
DT = 3.5 K
DT = 4.5 K
Number of Collectors = 1
DT = 5 K
0
100
200
300
400
500
600
700
800
900
1000
6 8 10 12 14 16 18
Collector Length m
Hea!ng Capacity kW
Atlas 18 - B0W55 with PEM40x2.4
DT = 3 K
DT = 4 K
DT = 3.5 K
Number of Collectors = 1
DT = 4.5 K
DT = 5 K
Installation Guide Atlas & Calibra
BWCA01IG0202 Thermia AB
6

Thermia Calibra Specifications

General

Brand	Thermia
Model	Calibra
Category	Heat Pump
Language	English