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USER MANUAL – Release 1.2 of 01/01/2010
Page 138 of 191
Version: 02/03/2010
52. HEAT RECOVERY WORKING BY MEANS OF TEMPERATURE PROBE
The heat recovery requests can be managed by the temperature probe positioned on the heat recovery
units.
Thermostating is proportional, as described below:
By means of Par. rC14 it is possible to select the temperature control probe
Temperature control in heat recovery mode
Heat recovery temperature control graphics
Starting from the Set, the available recovery steps are inserted on a temperature decrease, until they are all
inserted when the temperature is equal to the Set - Differential.
In the same way, on a temperature increase the available steps are removed in succession until they are all
removed when the temperature is equal to the Set.
THE TEMPERATURE CONTROL WORKING PRIORITY CAN BE MODIFIED VIA PARAMETER
52.1 USER SIDE PRIORITY
rC02 = 0 User side priority
Heat recovery working mode is obtained only if the unit is in cooling mode with at least 1 compressor running
on call of the recovery temperature control.
In this case compressor switch-on/off refers to the evaporator probes, therefore hot water is obtained (heat
recovery working mode) only if there is a request for cold water.
In c heat recovery mode, recovery side satisfied with user side still in call conditions, the heat
recovery is disabled and the unit will function in cooling mode.
In c heat recovery mode, user side satisfied even if the recovery side is still in call conditions, the
compressors are switched off.