Electronic Protection Module (REL)
Keeping under constant control winding temperature and discharge temperature
Self-regulating crankcase heater (TCH)
Increasing the energy efficiency and reducing the warm-up time. The thermal
regulated crankcase heater reduces the output power once the set temperature is
reached. Depending on the working conditions there is up to 30% energy saving
compared to the standard heater (BT001)
Optical oil level sensor (ALL)
Compressors with 4 cylinders and without oil pump can be equipped with an
optical oil level sensor, which can be installed in a dedicated hole placed in in
correspondence to the internal oil pocket. The sensor is based on an infrared LED
and a light receiver. Infrared reflection/refraction depends
on the oil level in the pocket (BT007)
Inverter
Any model in the H range can be equipped with inverter to work at variable speed
from 30 Hz until 70 Hz. Each inverter is preset in the factory for an easy installation.
Additional info on the compressors working with inverter
can be found in the dedicated technical bulletin
Stepless capacity control (SLCR)
10-100% stepless modulation of the capacity is possible by using a special highfrequency pulsating valve in connection with a dedicated mechanical capacity
control head system (BT022)
Capacity control head (CR)
A mechanical capacity control system can be applied on compressors from 4
cylinders and above (BT002)
Unloaded start (US)
With a part-winding start system it is seldom used the unloaded start for bypassing the suction with the discharge, reducing significantly the absorbed inrush current (BT009)
