Riello TAU Unit 50 Installation And Maintenance Manual page 92

CONFIGURATION OF CASCADED THERMAL UNITS
DEPENDING 1
Functions:
− Reads the secondary circuit sensor (SC)
− Controls thermal unit two-way valve (V1)
− 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.
Progr.ble 8 = LPG gas solenoid
125
outp. 1 valve (VLPG)
Progr.ble
187 16 = Zone pump (P1)
outp. 5
Progr.ble
128 1 = General pump (V1)
outp. 4
3 = System sensor (used
122 Prog Input 7 as secondary circuit
sensor SC)
188 Prog Input 9 2 = Zone sensor (S1)
(*) 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.
M02 16-17-18
M02 9-10-11
M02 13-14-15
M01 9-10
M01 13-14
Terminals No.
M01 27-28
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 two-way valve (V1)
Programmable outputs and inputs parameter configuration (*)
(If Par. 97 = 11-21-22-23-24-25 - Stand alone configuration)
Par.
Description Parameter setting
No.
Progr.ble 8 = LPG gas solenoid
125
outp. 1
Progr.ble
128 1 = General pump (V1)
outp. 4
(*) 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 = 00100000
Configuration of boiler parameters
Par.
Description
No.
7 CH Hysteresis
140 Minimum Flow
92
Terminals No.
M02 16-17-18
valve (VLPG)
M02 13-14-15
Terminals No.
M01
switch
M01 21-22-23
Parameter setting
7°C
5 l/min
27-28