7.5 Hydraulic installation
■
Connect the heating or cooling coil in accordance with the hydraulic diagram.
■
Depending on local conditions, check whether compensators for linear expan-
sion are required for the supply and return lines and/or articulated connections
are required for the units.
■
Insulate the hydraulic lines.
■
Hydraulically aligned the individual units with one another within the control
group to ensure uniform pressure admission.
Attention
Danger of damaging the units. Do not fasten any loads to the coil, e.g. by
means of the flow or return lines.
Caution
Danger of malfunctions. The condensate separator in cooling units only
functions while the fan is running. No coolant must be allowed to circulate
in the heating/cooling coil when the unit is switched off.
Hydraulic installation of units with hydraulic assembly for diverting system (option)
■
Connect the heating or cooling coil to the on-site hydraulic network using the
hydraulic assembly,
–
Install the assembly horizontally.
–
Mount the assembly so that its weight does not need to be absorbed by the
coil.
–
Insulate the assembly.
■
Read off the default settings for the hydraulic alignment from Diagram 1. The
curves 1.0 to 4.0 correspond to the revolutions of the valve spindles of the
balancing valve; they are shown on the turning knob:
0.0
....
Valve closed
4.0
....
Valve completely open
■
The coil and the hydraulic assembly are already included in the specified pres-
sure drops. Thus, only consider the pressure drops of the distributor circuit up
to the screw connections.
RoofVent
®
RH | RC | RHC | R
Transport and installation
Art.No. 4 214 745-en-04 / Page 39
