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REMKO PWL
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
Legend / usable limits
Finned heat exchanger
The CU/AL finned heat exchangers are comprised of copper tubes with fitted aluminium fins. The connection pipes
made of steel tubing are guided out of the housing on the angled sides. The non-twist connections are equipped with
a 1˝ inside thread.
The heat exchanger and the housing design determine the usable limits.
The maximum inlet temperature in heating mode must not exceed 90 °C.
The minimum inlet temperature in cooling mode must not fall short of 4 °C.
An operating pressure of 16 bar in the heating/cooling circuit must not be exceeded.
The temperature in the immediate vicinity of the units must not exceed 70 °C (built up heat).
Fan and motor
The fan is driven by an external motor that forms the fan hub at the same time.
On the external motor, the impeller and its drive motor are combined in one unit that is optimised for
ventilation and in its design.
The axial fan is balanced statically and dynamically.
The rotor housing is made of cast aluminium.
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3-phase drive
400 V/50 Hz
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Heat class:
F
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Enclosure class:
IP 54
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Motor protection: Thermal contact (TC)
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The winding circuit in the star (Y) is the low speed
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The winding circuit in the triangle (D) is the high speed
Application area for motors in insulation class “F”
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Heating medium inlet temperature up to max. 90 °C
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Ambient temperature (intake temperature) up to max. 40 °C
Motor protection
Thermal contacts are embedded into the motor windings.
These thermal contacts (temperature monitors) open as soon as the maximum winding temperature of 135 °C
is exceeded (fault). In the event of unit group switching, all thermal contacts must be switched in sequence.
Therefore, as many motors as you wish can be safeguarded by a full motor protection device in theory.
However, the number of fan heaters is limited by the switching output of the switchgears.
Содержание PWL 101-H
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