8.5 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 balance the pipework for the the individual units within a control
zone to ensure even distribution.
Attention
Danger of damaging the units. Do not fasten any loads to the coil, e.g. by
means of the ow or return lines.
Attention
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 cooling coil when the unit is switched o.
Hydraulic installation of units with hydraulic assembly for diverting system (option)
■ Connect the heating 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 o the default settings for the hydraulic alignment from Fig. 21. 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 specied
pressure drops. Thus, only consider the pressure drops of the distributor circuit
up to the screw connections.
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TC
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THC
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MH
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MC
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MHC
Operating instructions
Transport and installation
4 218 828-en-01 4 218 828-en-01
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