Giacomini K492DY012 User manual

1
0954EN June 2018
Room contRol and electRonic Regulation
Weekly chRonotheRmohumidistat
foR exteRnal Wall-mount installation
k492dy012
Description
Room chronothermohumidistat K492DY012 for external wall-mount
installation including temperature and relative humidity sensor with two side
relays, controls heating/cooling systems and one dehumidier at the same
time. The unit can be programmed weekly, with daily timer and manually.
Versions and product codes
Product code Power supply
K492DY012 230 V
Accessories
• K463PY001: immersion delivery temperature probe
Description of display keys
1
5
823
7
64
Legend
1Day of the week
2Activation status: cooling or heating
3Room temperature (Celsius / Fahrenheit)
4Multifunction key icons
5Multifunction keys
6Activation status: dehumidication
7Operation mode
8Bar graph to display messages and daily program
Notes
•The display lights up by pressing any key once.
•The function of each key varies with each program and it is shown on
the display near the corresponding button.
Technical data
Temperature range 2÷40 °C, increase 0,1 °C
Room T measuring range / display -50÷50 °C
Relative humidity regulation range 30÷70 %, increase 1 %
Room relative humidity measuring
range /display 0÷100 %
Power supply 230 V, 50 Hz
Max. absorbed power 5 W
Type of output
2 relays with dry changeover contact
(COM/NA/NC)
3 screw clamps (closed + open)
Type of input
•1 auxiliary probe - NTC 10K - Lmax 100 m
section 0,5÷1,5 mm2(K463PY001)
•2 auxiliary inputs - free contacts
Back-up battery For program and clock/calendar
Contact capacity 5(3)A 250 Vca
Type of action 1 B.U. (connection micro-switch)
Software class A
Min. regulation dierential 0,1÷5 K
Thermal gradient of reference 4 K/h
Max. room temperature 45 °C
Storage temperature -10÷60 °C
Electric insulation Double insulation
Protection class IP30
Pollution degree 2
Pulse voltage 4000 V
Installation Wall/ush mounting box
Dimensions 137 x 90 x 32 mm
Standards EN 60730-1 standard and second parts
ErP class ErP Class V; 3%
[Reg. EU 811/2013 - 813/2013]
K492DY012

2
0954EN June 2018
Room contRol and electRonic Regulation
Weekly chRonotheRmohumidistat
foR exteRnal Wall-mount installation
k492dy012
Installation
Warning.
•This product must be installed by qualied operators only in
compliance with standards provided for electric devices.
•The product must be installed with power o.
Chronothermohumidistat K492DY012 must be installed on a wall or inside a
3-module or round wall-mount box at approximately 1,5 m from the oor and
in a position suitable to read the room temperature.
Do not install the thermostat on outside walls, near doors and windows and
in positions under direct sunlight.
Follow the steps below to install the chronothermohumidistat:
•Separate the back cover from the body prying on the slot.
•Remove the insulation by unscrewing the special waterproof screw.
•Connect the wires (see “Electric connections”) and t the back cover on the
wall using the screws included.
•Tighten the screw and snap the body on the back cover.
Electric connections
Connect the electric wires using the diagram below as reference.
5B
6
A
7
1K492DY012
2
Gd
4
L
N
In2 In1 Gd
Relè 2
(dehumidificator)
Relè 1
(heating/
cooling)
Optional probe
K463PY001
Input 1
(allarme)
230V 50Hz
Input 2
(changeover)
Warning.
•Connect the electric wires with power o.
•The electric wires must be connected by qualied operators only.
Note.
In case of blackouts, the settings will not be deleted as they are saved
in a non-volatile memory. Uninterrupted operation of the clock/
calendar in case of extended network failure is also guaranteed by an
internal back-up battery.

3
0954EN June 2018
Room contRol and electRonic Regulation
Weekly chRonotheRmohumidistat
foR exteRnal Wall-mount installation
k492dy012
Operation
Chronothermohumidistat K492DY012 is a device equipped with a
temperature and relative humidity sensor with two side output relays.
It controls heating/cooling systems and one dehumidier at the same time.
The LCD display shows the energy consumptions of the entire system
through a user-friendly bar graph.
Operation programs
The chronothermohumidistat includes multiple operation programs to
control heating/cooling.
24.4
tman = 25.0 [ MAN ] MANUAL PROGRAM
The device controls the room temperature
using a preset value specied from time to
time and saved up to selection of a new
program.
24.2
3
[AUTO] WEEKLY PROGRAM
The device controls the temperature set
based on hourly programs of weekly proles.
Available temperature levels: tC, tE, tA, OFF
(every half an hour).
24.2
1
12:01 01-01-18 [JOLLY] TEMPORARY PROGRAM
The device controls the system using a
temperature that can be set along a variable
time frame (the user enters the time and day
up to which he wants to maintain a specic
temperature).
24.2
H
[ HOLIDAY ] HOLIDAY PROGRAM
The device controls the system through an
additional daily prole (when the user is home
on holiday). Two temperature levels available:
tC, tE, tA, OFF (every half an hour).
Dimensions
A C
B
A [mm] B [mm] C [mm]
137 90 32
Standards of reference
• CE homologation
• EN 60730-1
Product specications
K492DY012
Digital electronic chronothermohumidistat with weekly programs to
control heating and cooling systems. External wall-mount installation.
Power supply 230 Vac, 50 Hz. Integrated room relative humidity sensor
to engage dehumidiers combined to the radiant system. Used to
control thermo-electric actuators and dehumidiers. Protection class
IP30. Operation: manual, automatic, jolly, holiday. Summer/winter control.
Working temperature range 2÷40 °C. Dimensions 137 x 90 x 32 mm.
Homologation CE. Compliance with ErP Class V; 3 % (Reg. EU 811/2013 -
813/2013) and EN 60730-1 and second parts.
Note.
Refer to user manual included and www.giacomini.com for a detailed
description of all functions and operation.

4
0954EN June 2018
Room contRol and electRonic Regulation
Weekly chRonotheRmohumidistat
foR exteRnal Wall-mount installation
k492dy012
Additional information
For more information, go to www.giacomini.com or contact our technical assistance service: '[phone]+39 0322 923255 *[email protected]
This document provides only general indications. Giacomini S.p.A. may change at any time, without notice and for technical or commercial reasons, the items included herewith.
The information included in this technical sheet do not exempt the user from strictly complying with the rules and good practice standards in force.
Giacomini S.p.A. Via per Alzo, 39 - 28017 San Maurizio d’Opaglio (NO) Italy