The unit regulates water delivery temperature of the heating system as a function of the outside temperature.
It is suitable for heating systems of the apartment buildings and cottages.
General features
Potentiometer to select the linearized heating curve (external temperature-water delivery temperature) with adjustable gradient
from 0.25 to 4.5.
Potentiometer for the regulation of the comfort ambient temperature with parallel translation of the heating curve.
Potentiometer for the regulation of the economy ambient temperature with parallel translation of the heating curve.
A six-position switch to select the operating program: OFF – antifreeze – always reduced – ON – night reduced/day comfort (automatic) – night antifreeze/day comfort (automatic)
Switch for selecting the adjustment type: burner ON-OFF control – proportional-integral control (PI) of the motorized mixing valves with completely electronic feedback.
Potentiometer to regulate the stop delay of the circulation pump.
Indicator light.
Quartz clock with charge reserve of 100 hours.
Transparent protection cover.
Unit weight 1.02 Kg.
Electric features
Consumption: 5 VA.
Output through relays on voltage-free terminals.
Contacts rating: 5A – 230Vca (resistive load).
RC group protection against radio interference.
ADVANTAGES
0
The unit regulates water delivery temperature of the heating system as a function of the outside temperature.
It is suitable for heating systems of the apartment buildings and cottages.
Advantages
TECHNICAL SPECIFICATION
CODE
PROGRAMME
CONTACT
RATING
OPERATING
TEMPERATURE
CONSUMPTION
PROTECTION
DEGREE
EV02F
daily
5(3)A - 250Vac
0 ÷ 50 °C
4 VA
IP40 back panel
EV05M
weekly
5(3)A - 250Vac
0 ÷ 50 °C
4 VA
IP40 back panel
HOMOLOGATION AND INSTALLATION
Homologation
Complies with the law 373, law n.10 dated 9 of January 1991 and D.P.R.412 dated 26 of August 1993.
Complies with EN 60730-2-9; EN 60730-2-7 standards.
Installation and use
Application possibilities: flush, wall or rear panel mounting.
The unit regulates water delivery temperature of the heating system as a function of the outside temperature.
The regulation is achieved by direct control of the burner or with the proportional time controls of a 3-way or 4-way motorized
mixing valve.
The outside and water delivery temperatures are monitored by the appropriate sensors. The temperature values are transmitted
to the control unit, which responds to a previously set program and determines the value of water delivery temperature required
by the system to maintain always constant the set ambient temperature.
See more details on technical data sheet.
ACCESSORIES
EC11: External probe
EC12: Contact delivery probe with clamp for fixing on the pipe
EC13: Immersion delivery probe with protection casing and conic thread connection G 1/2.
