Hewalex Geco G422-P01 User Manual

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6.2 Hot water heating system – controlling the solar collector pump, circulation pump and the heater.
Controlling the collector pump is analogous to that in the system no. 1 described in paragraph 6.1. Controlling the circulation pump is analogous to that in
the system no. 1 described in paragraph 6.1. Controlling the electric heater is analogous to that in the system no. 1 described in paragraph 6.1. Fig. 10.
Schematic and electric diagram for installation no. 2
Fig. 10. Schematic and electric diagram for installation no. 2
Parameter
Range
Default settings
ΔT1 [°C]
5
–
1
5
8
T2max [°C]
10
-
85
65
T4max [°C]
10
-
85
50
Pump regulation
Yes / No
Yes
Cooling
Yes / No
No
Circulation pump
Continuous / Non
-
continuous
Non
-
continuous
Power [W]
100
–
3000
1000
List of parameters for diagram no. 2
6.3 A system of two boilers, allowing for additionally heating the boiler with solar energy
Controlling the collector pump is analogous to that in the system no. 1, described in paragraph 6.1. Controlling pump C is done with the use of sensors T2 and
T4, and an auxiliary control coefficient ∆T2. When the sum of temperature T4 and the auxiliary control coefficient ∆T2 is below the value of temperature ΔT2,
output O3 is switched on, controlling pump C. When the sum of T4 + ∆T2 is above the temperature measured by sensor T2, pump C switches off. In order to
prevent the pump C from oscillating on and off when the sum of T4 + ∆T2 parameters is equal to temperature T2, hysteresis control has been implemented,
with the value of 2°C. Similarly to the previous systems, sensor T3 is used to calculate collector power and is not necessary. If sensor T3 is disconnected, the
controller will not calculate momentary power of the collector.
Schematic and electric diagram of installation no. 3
Parameter
Range
Default settings
ΔT1 [°C]
5
-
15
8
ΔT2 [°C]
5
-
15
8
T2max [°C]
10
-
85
70
T4max [°C]
10
-
95
65
Pump regulation
Yes / No
Yes
Cooling
Yes / No
No
List of parameters for diagram no. 3

Hewalex Geco G422-P01 Specifications

General

Brand	Hewalex
Model	Geco G422-P01
Category	Controller
Language	English