VTS Medical Systems VENTUS COMPACT HP VVS021c Instructions For Use Manual page 27

4 CONNECTION OF WATER HEATER
4.1 CONNECTION OF WATER HEATERS
!
! The unit should be equipped with a water or electric heater (optional) to support the heat recovery
(rotary heat exchanger and heat pump) and to provide space heating during the heat pump
defrost period. If the unit has a space heating function (without other heating systems) then the
optional heater is mandatory to ensure room comfort.
! The operation of the water exchanger requires its connection to the process heat system
depending on the designed function of this exchanger.
! Exchangers must be protected against freezing (if there is a risk of this).
! The connection of additional heat exchangers must be carried out in such a way that no stresses
are caused which could result in mechanical damage or leaks. The weight of the pipes and
thermal stresses must not be transferred to the exchanger connections.
! Supply lines should be routed to avoid collision with other sections of the air handling unit and
other installations.
! It must be possible to easily disconnect the heat exchangers from the process heat installation
for maintenance and service work.
! Compensation should be used at the inlet and outlet of the joints to compensate for linear
expansion of the pipes.
! Hydraulic lines must not be routed over electrical lines.
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