Coster RTL 120, Manual, Page: 1 / 16

1
D33351-RTL 120/520 Eng.
24.06.15 AM
We reserve the right to make changes without notice
3. SENSORS & ACCESSORIES
nº Description Model Sensing el. t° Code Data
Optional sensors
1 All types of SAB... and SAI 010 room sensors (wall-mounted or built-in) SAB/SAI NTC 10 k Ω B1 N 111
LOCAL BUILT-IN OR WALL-MOUNTED
UNIT WITH 0...10 Volt RELAY OUTPUT
"MULTIZONE" SYSTEM
RTL 120
Eng.
= built-in unit
LOC P
1. BUILT IN LOCAL UNIT (SLAVE) WITH 0..10 VOLT– RELAY OUTPUT
RTL 120
RTL 120 is the SLAVE unit in the "MULTIZONE" system for the control of temperature and other functions in the
single zone.
This unit can be housed in a standard 503 built-in enclosure.
– receives power from ALC 318 or ALP 418 auxiliary power supply units
– controls local thermal units by means of:
On-Off zone valve with 230 Volt ~ actuator and modulation unit with 0...10 Volt – input
On-Off zone valve with 24 Volt ~ (or other voltages) actuator, and modulation unit with 0...10 Volt – input
Zone valve with 24 Volt ~ (or other voltages) thermal actuator, and modulation unit with 0...10 Volt – input
Fixed or variable speed zone circulation pump
Zone burner or small boiler with 0...10 Volt – input in POWER or TEMPERATURE
On-Off valve and fan-coil ventilator switch with 0...10 Volt – input
Any other device that can be controlled via a three-point relay and with 0...10 Volt input –
– Internal or external room sensor
– Complete configuration of the limits and of the mode of use permitted to the user
– Three On-Off inputs to be programmed as required
– Ample display with simplified readout for less expert users
– Three intuititive use operational push-buttons for less expert users
– Ability to operate in the event of breakdown of the centralised control
RTL 120 is essentially a controller with exhaustive functions, selectable in order to adapt to the experience
level of the user, or to the desired discretion of the user
RTL 120 includes a base and an electronic unit:
– Built-in base + electronic unit = RTL 120
– Electronic unit to be inserted onto this base = RTL X20/F
2. WALL-MOUNTED LOCAL UNIT (SLAVE) WITH 0..10 VOLT– RELAY OUTPUT
RTL 520
RTL 520 has the same functions of RTL 120, except that instead of being built-in it is fixed to the wall (when
503 enclosures are not envisaged).
RTL 520 has all the functions of RTL 120.
RTL 510 includes a base and an electronic unit:
– Wall-mounted base + electronic unit = RTL 520
– Electronic unit to be inserted onto this base = RTL X20/F
RTL 520
Eng.
= wall-mounted unit
D 33351
24.06.15 AM