Pfannenberg FLZ 520, FLZ 530 Data Sheet

Thermostat FLZ 520 / FLZ 530

LOAD

LOAD

FLZ 520 – Opener (Co ntact opens with rising temperature – Setting knob with red impri nt)

Thermostat FLZ 520/530 Instructions for Use

FLZ 530 – Shutter (Contact closes with rising temperature – Set ting knob with blue impri nt)

Setting ranges

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Working temperatur e range -20°C..+80°C / -5°F ..+180°F

Max. breaking capacit y

Temperature differe nce < 7K
Tolerance for switching point +/- 4K
Type of contact Opener – NC / Shutter – NO (snap-action contact)
Type of connection 2-pole clamp, 2,5mm²

Colour RAL 7035 – grey
Protection category IP 20

Assembly

Application:
The thermostats are used for the temperature regulation of cooling units, heating appliances, filter
ventilators and heat exchangers inside switch cabinets.
Moreover, they can be used as signal transmitters for reporting excess or insufficient temperatures.
Safety instructions
The thermostats may only be installed by qualified staff.
The protective measures and the protection against contact are to be ensured by the installation.
The information on the name plate (voltage and current) is to be heeded.

The operational reliability of the thermostat is to be ensured by an operating test.

Installation instructions:

- The thermostat should be assembled in the upper part of the switch cabinet at the maximum possible
distance from heat creating components.

- The ventilation slots of the thermostat should not be covered.

- For the temperature setting of the opener the highest possible hysteresis must be added to the
required minimum temperature.

For example: - required minimum temperature inside switch cabinet: 9°C (46°F)

-20°C .. +40°C /

-5°F .. +105°F

Value in brackets: in ductive load at cos.φ=0.6

Snap fastening for - 35mm profile bars in accordance with EN 60715

- Pfannenberg exhaust filter PFA 3000

- temperature to be set: 20°C (66°F)

- resulting from: 20°C (66°F) = required temperature 9°C + highest
possible hysteresis 11K (7K+4K)

0°C .. +60°C /

+30°F .. +140°F

240V AC, 10 (2)A / 12 0V AC, 15 (2)A

DC: max. 30W

+20°C .. +80°C /
+70°F .. +180°F

Betriebsanleitung Thermostat FLZ 520/530

FLZ 520 – Contact de repos (le contact s ’ouvre lorsque la température augmente - Bouton de réglage avec inscriptio n rouge)
FLZ 530 – Conta ct de travail (le contact se fer me lorsque la température augmente - Bouton de réglage avec inscription bleue)

Mode d'emploi Thermostat FLZ 520/530