VTS Medical Systems VENTUS COMPACT HP VVS021c Instructions For Use Manual page 33

6 ELECTRIC HEATER
6.1 GENERAL INFORMATION
The electric heater can be an optional accessory (separate section) or built into the base block of the air
handling unit (VVS021c, VVS030c). If the heater is built into the base block, the heater is connected at
the factory to the main supply point of the air handling unit.
The method of connecting the optional heater is described in separate documentation, which is available
via the link provided in the QR code on the plate. Detailed information can also be found in the document
"Electric heaters - slices Technical and operating documentation" on the manufacturer's website
www.vtsgroup.com.
The heater consists of heating elements (heaters), a connection terminal, control Controls (SCCR) and
over-temperature protection.
The heaters are Cr-Ni-Fe heating wires of 6kW/400V. They are connected in heating slices (heating
sections). The heater can consist of: 1, 2 or 3 heating slices.
Electric heaters can be supplied in two power variants - low power to suit AHUs with relatively low heating
requirements and high wattage, covering AHU cases for facilities with higher heating requirements.
These types differ primarily in the types of electrical connection of the individual heaters in the heater unit
(star connection for low power or delta connection for high power).
The appropriate connection of the heaters to each other is made at the heater manufacturing stage - the
installer is only required to connect the power and control wires - no modifications to the heater system
connections from the factory configuration are allowed.
DUCT INSULATION
ELECTRIC HEATER - TO BE MADE ON SITE.
! Electric heaters are available in a ducted version (without thermal insulation and feet/frames) as
well as a built-in version in the MW40 insulation casing.
! When insulating ventilation ducts, which must include the casing of the electric heater, it must be
ensured that the connection point (especially its ventilation openings) is outside the insulation
layer.
www.vtsgroup.com OIMM VENTUS COMPACT HP - ver.5.0.9 (10.2024)
!
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