enervent Pegasos Z eWind, Руководство по установке

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100
The valve and actuator must be in the same
position when connected. When the valve is in
the open position, the actuator is turned counter-
clockwise before connecting, and when the valve
is closed, the actuator is turned clockwise before
connecting. Figure 1 on page 15 shows the valve
and markings on valve spindle in valve open
(cooling/heating on max) position.
NOTE
Installing geo-cooling equipment
If a geothermal heat pump is in use, the cold brine in the
ground loop can be used in the summertime to cool the
incoming air.
The system can be implemented in two ways:
•
In a standard delivery, a separate pump is used
(Option 1).
•
Alternatively, the brine is circulated through the
geothermal pump (Option 2).
The cooling coil can be either built in the ventilation unit or
it can be a duct coil, depending on the model. A duct coil is
mounted in the supply air duct after the ventilation device.
Detailed principal charts are found at the end of this
manual.
Option 1 (standard)
A separate pump is used for circulating brine in the supply
air coil.
The delivery includes:
•
A relay for starting up the circulation pump for the
ventilation unit’s cooling coil.
•
The relay is situated on the unit motherboard
connection DO8.
•
A 3-way control valve (Belimo R3) needed for
cooling.
•
An actuator (Belimo TR24-SR). The temperature
is controlled using the ventilation unit’s own
automatic control. The ventilation unit controls the
circulation pump and the 3-way valve.The heat
pump is not started up for ventilation cooling.
To install:
1. Install the cooling coil in the supply air duct (in case of
a duct coil).
2. Connect the condense water outlet.
3. Build a separate pump group with valve and actuator
for circulating cool brine adjacent to the ventilation
unit cooling coil.
4. Isolate the pipes carefully with vapour proof insulation
to prevent condensation on the outside of the pipes
in warm and semi-warm spaces.
•
Follow the principal chart at the end of this
manual.
5. 5. Prepare / connect wiring between the ventilation
unit, the geothermal pump and the actuator, as
shown in the connection diagram at the end of this
manual.
Option 2
A geothermal heat pump is used for circulating brine also
in the supply air coil.
The delivery includes:
•
A relay for starting up the brine pump.
•
The relay is situated on the unit motherboard
connection DO8.
•
A 3-way control valve (Termomix D32S) needed for
cooling.
•
An actuator (Belimo NRYD24-SR-W + installation
set MS-NRE). The temperature is controlled using
the ventilation unit’s own automatic control. The
ventilation unit controls the geothermal heat
pump and the 3-way valve.
To install:
1. Install the cooling coil horizontally in the supply air
duct (in case of a duct coil).
2. Isolate a separate loop for the cooling coil.
•
Make sure to include the one-way valve.
•
Follow the principal chart at the end of this
manual.
3. Connect the condense water outlet.
4. Install the 3-way valve and the actuator in the ground
collector’s piping.
•
The actuator controls the brine flow to the cooling
coil as needed.
5. Isolate the pipes carefully with vapour proof insulation
to prevent condensation on the outside of the pipes
in warm and semi-warm spaces.