Connections Of An Additional Heat Source; Extraction Air Heat Recovery - Gebwell GEMINI Installation, Operation And Maintenance Manual

Install the change-over valve in accordance with the instructions
included in the product package. Exercise great care when posi-
tioning the actuator to the valve arbour. An incorrectly installed
actuator can cause equipment failure.
A. Charging, domestic water (Esbe, square)
B. Charging, heating (Esbe, triangle)
AB. Charging from the
7.3 Connections of an additional heat
source
Connection of an additional heat source to the heating circuit
For controlling of additional heat source an extension module
control extension for external heating source (LVLLO1A) sold
as an accessory. An additional heat source refers to a secondary
heat source, which produces additional heat / power in the
ground source heat hybrid system. The heat source can be, for
example, an oil burner, electrical boiler, district heating or natu-
ral gas. The heat pump's controller directly controls the addi-
tional source with a 0-10V control message or relay control. If
the additional source is controlled with relay control (K27), the
adjustment must be made with a 0-10V control message, either
by using a circulating pump of control valve. The B10 output
water sensor is used as the additional heat source's control sen-
sor.
Additional heat source with the connection of heating/domestic
hot water
The additional heat source may be connected after the heat
pump, before the change-over valve. This allows the use of the
additional heat source for charging heating and domestic hot wa-
ter. The control of the additional heat source can be implemented
with an adjustable pump control, adjustable additional heat
source or a 3-way mixing valve with 0-10V control.
v1-4 22092016
heat pump (Esbe, circle)
7.4

Extraction air heat recovery

The extraction air heat recovery system circulates brine to an ex-
traction air radiator without any need for a collection circuit. Ob-
serve the manufacturer's instructions when installing the extrac-
tion air radiator. The capacity of the heat pump is to be deter-
mined on the basis of the capacity of the extraction air radiator
and the cooling output capacity of the heat pump.
Example of extraction air heat recovery connection
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