Riello TAU Unit 50 Installation And Maintenance Manual page 100

CONFIGURATION OF CASCADED THERMAL UNITS
DEPENDING 1
Functions:
− Reads the secondary circuit sensor (SC)
− Controls thermal unit pump (PC)
− Controls the pump in a DEPENDENT direct zone (P1) with
the zone sensor (S1), with the consent of TA/OT (room
thermostat/Open Therm interface)
Programmable outputs and inputs parameter configuration (*)
(If Par. 97 = 11-21-22-23-24-25 - Stand alone configuration)
Par.
Description Parameter setting
No.
125 Progr.ble outp. 1
1 = General pump
187 Progr.ble outp. 5
16 = Zone pump
128 Progr.ble outp. 4
3 = System sensor
122 Prog Input 7 (used as cascade
188 Prog Input 9
(*) Do NOT change the factory setting of parameter 97
Configuration of parameters for INAIL kit (***)
Par.
Description Parameter setting
No.
2 = Water pressure
123 Prog Input 8
117 Prog Input 2 3 = Heating flowmeter
(***) An INAIL kit is required for each thermal unit
Hardware configuration
S1 = OFF (not used)
DIPSWITCH = 01000000
Configuration of boiler parameters
Par.
Description
No.
205 Dep. Zone Control
7 CH Hysteresis
135 Mod. Pump Type
136 Mod. pump mode
140 Minimum Flow
Terminals No.
8 = LPG gas
solenoid valve M02 16-17-18
(VLPG)
M02 9-10-11
(PC)
M02 12-13-14
(P1)
M01
sensor SC)
2 = Zone sensor
M01
(S1)
Terminals No.
M01
switch
M01 21-22-23
Parameter setting
1 = Enabled (according to
need)
7°C
2 = Grundfos (choose
according to need)
Fixed 90% (according to
need)
5 l/min
DEPENDING 2-8
Functions:
− Controls thermal unit pump (PC)
− Controls the pump in a DEPENDENT direct zone (P2) with
the zone sensor (S2), with the consent of TA/OT (room
thermostat/Open Therm interface)
Programmable outputs and inputs parameter configuration (*)
(If Par. 97 = 11-21-22-23-24-25 - Stand alone configuration)
Par.
Description
No.
Progr.ble
125
outp. 1
Progr.ble
187
outp. 5
Progr.ble
128
outp. 4
188 Prog Input 9
(*) Do NOT change the factory setting of parameter 97
9-10
Configuration of parameters for INAIL kit (***)
Par.
13-14
Description
No.
123 Prog Input 8
117 Prog Input 2
(***) An INAIL kit is required for each thermal unit
Hardware configuration
27-28
S1 = OFF (not used)
DIPSWITCH = 00100000
Configuration of boiler parameters
Par.
Description
No.
205 Dep. Zone Control
7 CH Hysteresis
135 Mod. Pump Type
136 Mod. pump mode
140 Minimum Flow
100
Parameter setting Terminals No.
8 = LPG gas solenoid
M02
valve (VLPG)
1 = General pump (PC) M02
16 = Zone pump (P2) M02
2 = Zone sensor (S2) M01
Parameter setting Terminals No.
2 = Water pressure
M01
switch
3 = Heating flowmeter M01
Parameter setting
1 = Enabled (according to
need)
7°C
2 = Grundfos (choose
according to need)
Fixed 90% (according to
need)
5 l/min
16-17-18
9-10-11
12-13-14
13-14
27-28
21-22-23