Daikin Modular Rotary, Instructions For Installation, Use And Maintenance Manual

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Water or coolant gas connections
Connections to water or to a coolant gas are required for the installation of a water or direct expansion coil
(optional).
For the
water/gas supply
it is necessary to connect the manifolds to
piping having a size that is suf-
ficient for the flow rates envisaged
: in order to avoid damage to the heat exchange battery in corre-
spondence with the junction between the steel fluid supply manifold and the copper circuits, it is neces-
sary, when fixing the system pipe, to use a double wrench so as not to overload the battery connections.
In order to ensure optimum heat exchange of the coils it is necessary to:
• WASH them prior to connecting them to the network.
• Completely eliminate the air present in the water circuit using suitable valves.
Apart from the heat transfer fluid used, the thermal exchange with the air occurs in flow, with counter
flow injection with respect to the flow of the treated air. Connect the pipes following the indications of
the plates placed on the machine's panel.
Take care that no moisture or dirt enters the heat exchange coil.
11
Example of connection to water coils