Perry Easy Program Instrucciones De Instalación, Programación Y Modo De Empleo página 42

6.7 - System troubleshooting indicator
(e.g.: Blocked boiler or air-conditioner is malfunctioning)
In Winter: if during normal operation (
not detect a significant increase in temperature within 2 hours, the display will indicate
that the heating system is not working
In Summer: if during normal operation (
not detect a significant decrease in temperature within 2 hours, the display will indicate
G
that the cooling system is not working
B
The signal disappears automatically as soon as a significant increase (Winter) or
decrease (Summer) in temperature is detected.
Note: in both cases, the relay remains ON (device is enabled).
7 - PROGRAMMABLE FUNCTIONS FOR DIFFERENT SYSTEMS
7.1 - Temperature differential
The chronothermostat is factory-set to work in differential mode
(ON/OFF) with a preset differential temperature value of 0.6 °C.
The differential value must be set according to the system's
thermal inertia; a low value is recommended for systems with
radiators made of e.g. cast iron and a high value for systems with
fan coils.
The differential value may be displayed and changed as follows:
!
Keep t1 pressed until the existing differential value blinks on
the display, e.g. d0.6c .
!
Modify the value (from 0.2 °C to 2 °C) via the
with a variation of 0.1 °C. Once the desired value is
reached, press OK to confirm
42
ON indicator blinks), the chronothermostat does
hOFF (e.g. blocked boiler).
ON indicator blinks), the chronothermostat does
cOFF (e.g. air-conditioner malfunctions).
keys and/or
and return to the set program.
Fig. 44
Fig. 45
Fig. 46
Differential is adjustable
from 0,2 °C to 2 °C
Time
Load
E.g. differential = 0.6 °C (Blinking)
PROG DAY
R