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USER MANUAL – Release 1.2 of 01/01/2010
Page 93 of 191
Version: 02/03/2010
17.5
COOLING – HEATING MODE SELECTION FROM KEYBOARD
SP06
= 0
By pressing the key, the unit is switched-on in cooling mode, pressing the
key, the unit is
switched-on in heating mode.
SP06
= 1
By pressing the
key, the unit is switched-on in cooling mode, pressing the
key, the unit is
switched-on in heating mode.
17.6
COOLING – HEATING WORKING MODE SELECTION FROM ANALOGUE INPUT
SP06=0
NTC external air temperature regulation NTC probe > SP08+SP09
the unit is switched-on in
cooling mode
NTC external air temperature regulation NTC probe > SP08
the unit is switched-on in heating
mode
SP06=1
NTC external air temperature regulation NTC probe > SP08+SP09
the unit is switched-on in
cooling mode
NTC external air temperature regulation NTC probe > SP08
the unit is switched-on in heating
mode
18. WORKING WITH RTC
18.1
WORKING WITH CLOCK DISABLING DIGITAL INPUT
If a digital input is configured as "Digital input working in automatic mode (RTC time period enabling)/manual
(keyboard)" and is not active, it enables the working via the internal clock.
The unit is only on within the time period.
18.2
WORKING WITH “VENTILATION ONLY” DIGITAL INPUT (AIR-AIR UNIT ONLY)
This working mode is only enabled if the clock is present and enabled.
If a digital input exists that is configured as “Digital input working with supply ventilation only“ and this input is
active, the working of just the relay outputs configured as supply fan are enabled using as switch-on/off logic
set with the internal clock.
WARNING:
also in ventilation mode only, if the unit is placed in remote off or stand-by, the fan still functions
for the delay time set in par. PA03.
18.3
WORKING WITH UNIT IN OFF FROM RTC IF ON IS FORCED FROM KEY
With the unit in OFF from RTC, if ON id forced from the key for a maximum time set in Par. ES25 before
being repositioned in OFF.
ES25
Unit maximum working time in OFF from RTC if forced in ON from
key
0
250 Min 10 Min
19. CONDENSING UNIT WORKING MODE
WARNING:
In condensing unit working mode the temperature control, dynamic set-point function and energy saving
function are disabled automatically
