Trane Picco R3206A Manual page 20

I/O resource - Parameter
r15
r16
r24
D03 can be activated via H81
Note: The domestic hot water function must be enabled (see paragraph 10.2)
10.5.4 SINGLE PLANT/DHW INTEGRATION HEATER
By configuring the DHW integration heater, it is possible to use this heater declared also as plant integration heater, setting the parameter r15=2
and r24=3.
In case of plant integration demand, the heater declared as DHW integration is activated, thus allowing to have a single integration heater for
plant, domestic hot water and plant under defrost.
10.6 INTEGRATION HEATER SELECTION MODE
The priority can be set in the order to activate the plant side and sanitary side integration heaters; specifically the configurations are:
1. r14=0 (default), the heaters can be activated simultaneously, if present;
2. r14=1, the heaters can be activated, excluding one another:
2.1. r20=0, priority to the plant (the DHW heater only switches on if the temperature control for the plant side heater is fulfilled);
2.2.r20=1, priority to DHW (the plant side heater only switches on if the temperature control for the sanitary side heater is fulfilled).
10.7 CIRCULATOR MANAGEMENT WITH HEATER ON
The circulator of the heat pump can be activated when the plant and/or DHW integration heaters are active with the compressors not running
(by substitution, by alarm or by integration in bracket II or III).
-r33 = 0: The circulator of the heat pump is activated on demand of the compressors or boiler,
-r33 = 1: The circulator of the heat pump is activated if the plant heater is active.
-r33 = 2: 2: The circulator of the heat pump is activated if the DHW heater is active.
-r33 = 3: The circulator of the heat pump is activated if the plant or DHW heater is active.
The circulator switches off after post-pumping (P02).
10.8 BOILER ENABLING
Function which can be activated instead of managing the double setpoint.
This is an additional resource to enable the boiler in integration or substitution of the heat pump.
Define the use mode by setting the parameter r23:
• r23=0 (default) boiler not used (operating priority of heaters);
• r23=1 only boiler on plant used (operating priority of heaters);
• r23=2 only DHW boiler used (operating priority of heaters);
• r23=3 DHW and plant boiler used (operating priority of heaters);
• r23=4 only boiler on plant with priority used (no heater operating priority);
• r23=5 only boiler in sanitary with priority used (no heater operating priority);
• r23=6 boiler on plant and in sanitary with priority used (no heater operating priority);
Define the supply of the boiler, setting parameter r32:
• r32 = 0: boiler without circulator with temperature control by heat pump,
• r32 = 1: boiler with autonomous circulator with temperature control by heat pump;
• r32 = 2: boiler without circulator with autonomous temperature control;
• r32 = 3: boiler with circulator with autonomous temperature control.
I/O resource- Parameter
r10
r12
r15
r16
r23
r32
DO3 can be activated via H81
10.9 ACTIVATION OF INTEGRATION HEATERS AND BOILER IN JOINT OPERATION AND IN
SUBSTITUTION OF HEAT PUMP COMPRESSOR
The auxiliary parts that can be used for joint operation or for operation in substitution are:
• boiler
• plant integration heater
• DHW integration heater
Considering the operating modes in heating and/or DHW, there are 4 operating areas:
20
Picco R32
Value
1
10 minutes (default)
2/3
26
Value
1
10 minutes (default)
1
10 minutes (default)
1÷6
1÷3
29
Heat pumps inverter air/water with axial fans
Function
Function enabling
DHW integration activation delay
Type of use of heaters
Plant integration heater
Function
Plant integration enabling
Plant integration activation delay
DHW integration enabling
DHW integration activation delay
Type of use of boiler
Boiler supply
Boiler enabling