User`s manual

13
heat pump systems
KX6 heat pump systems operate with 2 inter-connecting pipes,
thus commonly referred to as a '2-pipe system'.
These systems provide either a heating or cooling operation to all
indoor units and are suitable for a wide range of applications from
an individual apartment (with "Micro KX", 1/phase system) to an
entire multi storey building, especially where there are significant
open plan areas to be controlled.
The range starts with a 11.2kW cooling capacity, up to the largest
capacity single outdoor unit in the industry (24hp) with 68.0kW
cooling capacity. Outdoor units can also be “twinned” providing up
to 48HP/136.0kW on a single system.
The KX6 range has a total piping length of 1000m (14HP+) and the
furthest indoor unit can be connected up to 160m (8HP+) from the
outdoor unit.
Fixed Cooling mode/fixed heating mode (summer/winter switch):
It is possible to fix the operational mode of the system (either cooling or heating) using a switch (SW3-7) on the outdoor
unit PC board - this enables the building user to decide the operation of the system (e.g. cooling only in summer/heating
only in winter), to avoid unnecessary energy wastage. It is also possible to wire the control switch to a remote location
(inside the building) to a control room, or even linked to an ambient thermostat.