REACT
Parasol Zenith c
8
Swegon reserves the right to make design changes. 11/07/2022
210
210
103
50
Dimensions, water connection length 600, 1200, 1800
Water connection
REACT Parasol Zenith 600 / 1200 / 1800
Värme retur/
Heating return
Kyla tillopp/
Cooling supply
Kyla retur/
Cooling return
Värme tillopp/
Heating supply
942256009
A1
A2
B1
B2
Note:
Use support sleeves inside the pipes
together with compression ring couplings.
Connection dimensions
Model
Length
Factory-fitted
Connection Coupling type
Connection Coupling type
A cooling only
600, 1200
Actuator and valve
Return
DN15, male thread
Supply pipe
Plain pipe 12 x 1.0 mm
B Cooling/heating 600, 1200
Actuator and valve
Return
DN15, male thread
Supply pipe
Plain pipe 12 x 1.0 mm
A cooling only
1800
Actuator and valve
Return
DN20 external threads
Supply pipe
Plain pipe 15 x 1.0 mm
B Cooling/heating 1800
Actuator and valve
Return
DN20/DN15 external threads Supply pipe
Plain pipe 15/12 x 1.0 mm
A cooling only
600, 1200
-
Return
Plain pipe 12 x 1.0 mm
Supply pipe
Plain pipe 12 x 1.0 mm
B Cooling/heating 600, 1200
-
Return
Plain pipe 12 x 1.0 mm
Supply pipe
Plain pipe 12 x 1.0 mm
A cooling only
1800
-
Return
Plain pipe 15 x 1.0 mm
Supply pipe
Plain pipe 15 x 1.0 mm
B Cooling/heating 1800
-
Return
Plain pipe 15/12 x 1.0 mm
Supply pipe
Plain pipe 15/12 x 1.0 mm
Water connection - Length 600, 1200 and 1800*
A1 = Inlet, cooling water ø12 x 1.0 mm (Cu)
A1 = Inlet, cooling water ø15 x 1.0 mm (Cu) *(Size 1800)
A2 = Return, cooling water ø12 x 1.0 mm (Cu)
A2 = Return, cooling water ø15 x 1.0 mm (Cu) *(Size 1800)
B1 = Inlet, heating water ø12 x 1.0 mm (Cu)
B2 = Return, heating water ø12 x 1.0 mm (Cu)
Connecting water
The water pipes are always placed on the product’s short
side, regardless of the air connection side of the product.
Connect the water pipes using push-on couplings or
compression ring couplings when the product is ordered
without valves. Note that compression ring couplings
require support sleeves inside the pipes.
Do not use solder couplings to connect the water pipes.
High temperatures can damage the unit’s existing soldered
joints.
Flexible connecting hoses for water are available for flat-end
pipes and valves, and can be ordered separately.
Water quality
Swegon recommends water quality according
to VDI 2035-2 for both the heating and cooling
systems. In order to maintain the oxygen content
in the water below the levels (<0.1 mg/l) prescribed in VDI
2035-2, it is recommended to install a vacuum degasser,
particularly in the cooling system where it’s more chal-
lenging to dissolved gas. It is also important that the pre-
pressure in the expansion vessel is dimensioned according
to EN-12828 for both the heating and cooling systems and
that regular checks are made of the pre-pressure. The cooling
and heating systems must be designed to prevent oxygen
from entering the system, this is particularly important to
consider when selecting flex hose, pipes and expansion
vessels. When the system is filled with fresh water, it has
an oxygen content of approximately 8 mg/l, however, this
oxygen is consumed quickly through corrosion processes
and within a few days the oxygen in the water should be
consumed. Nevertheless, it is important to avoid filling the
system with fresh water unnecessarily.
Automatic deaerators are often installed to facilitate filling
of the system. It is recommended that the automatic
deaerators are turned off once the system has been fully
vented to avoid these drawing in air in the system if the
pre-pressure in the expansion vessel should drop.
