19
Air/water inverter chillers and heat pumps with axial fans
Parameter VALUE
H81 26 DHW integraon resistor
r15 1 Enabling of DHW resistors
r16 10 (default) Sanitary integraon acvaon delay (in minutes)
r24 2/3 Type of use of resistance
INDIVIDUAL SYSTEM/HEALTH INTEGRATION RESISTENCE
Conguring the DHW resistance it is also possible to use it as a system resistor, by seng the parameter r15 = 2 and r24 = 3.
In this way, in the event of a request for system integraon, the resistance declared as DHW integraon is acvated, thus making it possible to
have a single integraon resistance for the system, DHW and defrosng.
INTEGRATION RESISTANCE SELECTION MODE
The resistors can be acvated simultaneously if r14 = 0 (default), otherwise the priority of the order of acvaon of the system-side and DHW-
side integraon resistors can be set, in parcular the conguraons are:
• r14 = 1 for resistance acvaon in exclusion of each other;
• r20 = 0 for system priority (the domesc heang element is acvated only if the system-side thermoregulaon is sased);
• r20 = 1 sanitary priority (the system resistor is acvated only if the thermoregulaon on the sanitary side is sased).
CIRCULATOR MANAGEMENT WITH ACTIVE RESISTANCE
The circulator of the heat pump can be acvated when the plant and/or DHW integraons resistences are acve with the compressors not run-
ning (by substuon, by alarm or by integraon in bracket II or III):
• r33 = 0 for acvaon on request of the compressors or for any boiler request.
• r33 = 1 for acvaon with system resistance acve.
• r33 = 2 for acvaon with sanitary heang element acve.
• r33 = 3 for acvaon with system or sanitary resistor acve.
The circulator switched o aer post-pumping (P02).
BOILER ENABLING
Funcon which can be acvated instead of managing the double setpoint.
This is an addional resource to enable the boiler in integraon or substuon of the heat pump.
The relave digital output for enabling the boiler is DO7, it can be congured by seng parameter H85 = 29.
Dene the mode of use by seng parameter r23:
• r23 = 0 (default) for boiler not used (priority of resistor intervenon);
• r23 = 1 for boiler use on system only (priority of resistor intervenon);
• r23 = 2 for boiler use only in DHW mode (priority intervenon of the heaters);
• r23 = 3 per ulizzo caldaia sia in sanitario sia su impianto (priorità di intervento delle resistenze);
• r23 = 4 for boiler use in DHW and on system (priority intervenon of resistors);
• r23 = 5 for boiler use only in DHW mode with priority;
• r23 = 6 for boiler use in DHW mode and on system with priority;
Dene the boiler equipment by seng parameter r32:
• r32 = 0 for boiler without circulator with thermoregulaon charged to the heat pump;
• r32 = 1 for boiler with autonomous circulator with thermoregulaon charged to the heat pump;
• r32 = 2 for boiler without circulator with autonomous thermoregulaon;
• r32 = 3 for boiler equipped with circulator with autonomous thermoregulaon.
Parameter VALUE
H81 29 Boiler enabling
r10 1 Enabling in system integraon
r12 10 (default) System integraon acvaon delay (in minutes)
r15 1 Enabling of sanitary integraon
r16 10 (default) DHW integraon acvaon delay (in minutes)
r23 1 ÷ 6 Type of boiler use
r32 1 ÷ 3 Boiler equipment
LOGIC OF INTEGRATION HEATERS AND/OR BOILER IN JOINT OPERATION OR IN SUB
STITUTION OF THE HEAT PUMP COMPRESSOR
The auxiliary parts that can be used for joint or for operaon in substuon are:
• boiler
• system integraon resistor
• domesc hot water integraon resistor
The parameters to be considered for adjusng this operang logic are: