Trane Picco R3206A Manual page 14

Setpoint
CURVE
Heat
C 20°C
D 40°C
E 40°C
F --
G --
6.2 EDIT THE SET-POINT FROM 0-10V INPUT OR FROM RATIOMETRIC INPUT
Another type of adjustment allows you to edit the setpoint by adding (or subtracting) a value depending on the 0-10V input (if enabled). To
enable the function, set H22=40, and, if appropriate, edit the value of the parameter b15 (range 0-10), keeping in mind that if b20=0, 0-10Volt
input, if b20=1, ratiometric input.
-b20 = 0 with input at 0 Volt, the current setpoint: (Coo/Hea) setting – b15/2
-b20 = 0 with input at 5 Volt, the setpoint will be that set (Coo/Hea)
-b20= 0 with input at 10 Volt, the current setpoint: (Coo/Hea) setting + b15/2
The signal must be applied to terminals X-22.1 and X-22.2- (see wiring diagrams).
-b20 = 1 with input at 0%, the current setpoint: (Coo/Hea) setting – b15/2
-b20 = 1 with input at 50%, the setpoint will be that set (Coo/Hea)
-b20 = 1 with input at 100%, the current setpoint: (Coo/Hea) setting + b15/2
Through the terminal block, connect X-22.1 and X-22.2, while for +5V connect it directly to pin 3 of CN7 (pin 28 of the controller).
Connector
CN7
Terminal block
NOTE: in "cooling" mode, having considered that the default cooling setpoint is 7°C, the parameter b15 must not have a value of 6 or higher to
prevent the new setpoint set by 0-10V input from being lower than the antifreeze triggering threshold (4°C).
7. CIRCULATOR
The circulator of the heat pump can be set in the following operating modes:
• operation on call by temperature controller
14
Setpoint
b08
Cool
-- 1
-- 1
-- 1
5°C 1
10°C 1
+
2
2
0
+
2
2
0 %
PIN 1
GND
X-22.1
Picco R32
B09 b10 B11
-- 25°C
-- 10°C
-- 15°C
5°C -- 37°C
8°C -- 40°C
5
0 - 10 V Input [V]
0 5 %
Ra�ometric Input
PIN 2
Undervoltage input
X-22.2
Heat pumps inverter air/water with axial fans
b12 B13
-- 20°C --
-- 20°C --
-- 20°C --
-17°C
-20°C
0 1
1 0 0 %
PIN 3
+5V
Connect it directly to pin 3 of CN7 of the
controller
b14
-29°C
-28°C
-25°C
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