Giacomini K282X022 Manual

A
ctuAtor for mixing vAlves
0825EN August 2018
3-
point floating actuator
with integrated regulator
r298 r298n
for and Mixing valves
Description
K282X022 is an actuator that works both as motor and regulator, to control
the delivery temperature with three way mixing valve.
The actuator can be used on three way valves: it controls fixed delivery
temperature both heating and cooling, in "stand-alone" functioning;
Versions and product codes
Product code Supply
K282X022
24 Vac
with integrated regulator
Technical data
• Type of actuator: 3-point floating
• Power supply: 24 V 50/60 Hz
• Type of command: automatic only
• Propulsion force: 120 N ±20 %
• Maximum stroke: 6,5 mm
• Opening time at maximum speed: 85 sec
• Electricity absorption: 5 VA
• Protection class: IP40
• Storage temperature range: -34÷55 °C with R.H non-condensing
• Operating ambient temperature range: 0÷55 °C with R.H non-condensing
• Electric cable length: 1,5 m (7 x 0,14 mm
• Ring nut for fixing to valve body: M30x1,5 mm, in brass
• Delivery temperature probe:
NTC sensor 30 kΩ at 25 °C,
sensor bulb 47 mm long, external Ø 6 mm
2x0,22 mm cable, 1,5 m long, external Ø = 3 mm,
2
• Black external sheath, self-extinguishing
• Dual color LED (green/red), function status indicator
• Color: white/grey
047U54728
( M30 1,5 mm)
connection x
- K281
series
K282X022
Type Valve connection
3-point floating
M30 x 1,5 mm
)
2
Main features
• M30x1,5 mm brass ring fixing to valve body.
• Immersion probe for delivery water temperature with bulb, length 47 mm
and Ø 6 mm, connected to the actuator body.
• Proportional-integral (PI) digital electronic regulator inserted in the actuator
body.
• Motorized manual control (open ring) of the valve by selecting the opening
position (from 0% to 100%).
• Stand-alone functioning: manual selection by summer/winter mode selector.
• Stand-alone functioning: manual selection of the working set by rotating
potentiometer with double adjustment scale. Winter mode from 20 °C to 60
°C; summer mode from 15 °C to 25 °C.
3
1
2
1 Delivery temperature probe
2 Multipole cable for electric connections
3
Frontal side and frontal panel of the actuator
4 Ring fixing to valve body
Control elements
2
1
1 SUMMER/WINTER mode selector
2 RED/GREEN signalling led
3 Rotating potentiometer with double adjustment scale
The summer/winter mode selector and the rotating potentiometer with
double adjustment scale to select the fixed set for the delivery temperature
control are on the frontal side of K282 actuator.
Once summer/winter switching has been made through selector, position
the rotating potentiometer at the desired set according to the appropriate
graduated scale: the scale working during the winter is indicated with red
numbers (range from 20 °C to 60 °C ascending clockwise); the scale working
during the summer is indicated with blue numbers (range from 15 °C to 25 °C
ascending anticlockwise).
Warning.
In stand-alone functioning of K282 actuator, after summer/winter
switching through selector, position the rotating potentiometer at
the desired set according to the appropriate graduated scale.
4
Legend
3
Legend
1