Perry Electric TE541 - Selection of the Temperature Adjustment Mode; Or Differential On;Off

10. - TYPE TEMPERATURE ADJUSTMENT METHODS4
The thermostat is factory set to work in MODULATING PROPORTIONALLY
(P OP)r ;7mode setting cycles from 7 to 20 minutes (default minutes).
This system maintains the desired temperature more stable, whilst increasing
the user's comfortsensation and saving on energy consumption.
As opposed to the Modulating Proportionally, the temperature can be adjusted
THERMAL DIFFERENTIAL ON/OFFmode with a preset thermal differential
value (Hysteresis) of 0,3 °C (default).
Note: adjustable from 0,2 °C to 1,2 °C.
The hysteresis 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.
ON
OFF
ON OFF
ON
T SET
thermal inertia over temperature
of the heating element
time
°C
OFF
It will be possible to select temperature adjustment mode
between factory setting, orModulating proportional (PrOP)
Thermal differential (On:OFF).
Use the
keys, to select the desired temperature
adjustment mode.
Press OK to confirm.
.
Depending on the chosen mode, the next menu displays the
setting of the see paragraph(PERIOD PrOPif you have opted for
10.4.2) or to set if you have opted forHYSTERESIS On:OFF
(see
paragraph 10.4.3).
10 4 ). .1 - SELECTION OF THE TEMPERATURE ADJUSTMENT MODE (PROPORTIONAL DIFFERENTIAL ON/OFFOR
F access the menus by pressingrom normal thermostat operation
and holding the as described in Chap. 9 select«»key ,Mode Set
rEG, ().OK the current setting flashesconfirm with
Select with
the keys
time
T SET
isteresi
ON
ON
OFF
OFF
°C
Follows
17
press OK key
to confirm the desired setting
If you wish to exit the menus, press the button to returnMode
to normal operation.
10 - CONFIGURATION MENU (Installer)
example of modulating proportional adjustment
example of differential adjustment
thermal inertia over temperature
of the heating element
A long cycle is recommended for systems with high thermal inertia (cast iron
radiators, floor systems) and a short cycle for systems with low thermal
inertia (fan coils).