Stulz Tel-Air-2 Series, Operating Instructions Manual

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E/0618/35A/69
Optional auxiliary relay #2 Phase rotation check
DIP switch number DIP switch number
15 Settin 16 Setting
OFF Normal OFF Enabled
ON Up-to-speed ON Disabled
12.10 Soft start for single-phase compressor
– SOFTM
Hazardous voltage: will cause death or serious injury. Disconnect power before
working on equipment.
Soft Start option is not available for TLx40 with single phase power supply and
refrigerant R407C.
In TLx60 units with 230V/1ph/50Hz power supply and refrigerant R407C is not
possible to add other options with Soft Start.
The Soft Start option is available for single phase power supply units up to TLx90,
in the units with refrigerant R134a. In TLx40/60 units with 230V/1ph/50Hz power
supply and refrigerant R134a is not possible to add other options with Soft Start.
To verify the availability of SOFTM option with 230V/1ph/60Hz power supply, please
contact your local partner STULZ.
Setting of this component is made in factory and must not be altered.
With SOFTM option, the working limit of the unit is 45°C external temperature.
The soft start is installed inside the e-box on the supply line to the compressor. Its purpose is the
reduction of compressor starting current and torque.
Technical data
Power supply 230 V AC +10% / -15% / 50/60Hz
Nominal operating current 25A / 32A max. / AC-53a; AC-58a
Protection class according to IEC 529 IP 20