GeoSmart NETZERO BW Manuel D'installation page 16

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2
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Outlet units
These can manage as many as four different outlet temperatures. This is done by managing one direct outlet unit and three combined
outlet units. The combined outlet units have to use modulating 3-way valves with an analogue signal of 0-10Vdc. Each outlet unit has
independent terminals for heating and cooling demands. These signals are supplied with 24Vac voltage.
Auxiliary equipment integrated in the heating buffer storage tank
This is used to control an auxiliary unit integrated in the heating buffer storage tank. It can be used for normal heat production or as
emergency equipment.
Auxiliary boiler
This is used to control start-up / stop of an auxiliary boiler and regulate final temperature downstream from the boiler by a 0-10 Vdc
modulating 3-way valve. The heat pump can use the boiler to assist in normal heat production or as emergency equipment.
GEOSMART ENERGY
DO13
1 1
DO13
2 2
AI16
T
Figure 3.5. Wiring scheme using two buffer storage tanks.
1 1
2 2
AI15
T
AI16
T
Figure 3.6. Wiring scheme using a single buffer storage tank.
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T
T
DO6
DO5 AO3
T AI15
DG1
DO10
DO12
DI5 DI7
T T
T DI6 T DI8
AI12 AI13
T
DO6 DO14
DO5 AO3 AO4
SG2
DG1
DO10
Installer manual NETZERO
FBus2
DI5 T DI7 T DI9 T DI11
DI6 T DI8 T DI10 T DI12
AI12 T AI13 T AI14 T
DO14 DO15
AO4 AO5
SG2 SG3 SG4
FBus2
DI9 DI11
T T
T DI10 T DI12
AI14
T T
DO15
AO5
SG3 SG4