Table of Contents
Advertisement
1.11 Machine description
1.11.1 Features
Frame.
Self-supporting galvanised steel frame further protected with polyester powder painting.
Easy to remove panels allow access to the inside of the unit for maintenance and repair
operations.
Compressors.
Scroll with oil sight glass.
They are fitted with internal overheat protection and crankcase heater, installed on rubber shock
absorbers.
Fans.
Axial fans directly coupled to a three-phase electric motor with external rotor.
A safety fan guard is fitted on the air flow outlet.
Fans with low rpm are fitted on super silenced units and therefore some models have more fans.
Condenser.
Made up of two finned coils with copper pipes and aluminium fins. Circuits are made to create
two independent circuits.
Circuits are made so as to create two independent circuits.
Evaporator.
Evaporator AISI 316 stainless steel braze welded plates type with two independent circuits on the
refrigerant side and one on the water side, complete with water differential pressure switch. On
the Heat Pump units it is always installed an antifreeze heater.
Electrical board.
It includes: main switch with door safety interlock; fuses; thermal protection relays for
compressors; thermocontacts for fans; interface relays; electrical terminals for external
connections.
Microprocessor.
For the automatic control of the unit.
It allows the continuous display of the operational status of the unit, control set and real water
temperature and, in case of partial or total block of the unit, indication of security device that
intervened.
Chiller versions refrigerant circuit.
Made with copper pipes, it includes for all models the following components: thermostatic
expansion valve with external equalisation; filter drier; level and humidity indicator; high and low
pressure switches (with fixed setting).
Reverible heat pump versions refrigerant circuit.
The h eat p ump v ersion, i n a ddition t o t he c omponents i nstalled o n t he c ooling o nly
version, i ncludes f or e ach c ircuit: 4 -way r eversing v alve; s uction l iquid s eparator ;
liquid r eceiver; check valves.
Versions water circuit.
It includes: evaporator; temperature sensor; antifreeze sensor; water differential pressure switch;
manual air vent; water drain.
7
Advertisement
Table of Contents
