Fantini cosmi CH150R Weekly Programmable Thermostat Technical Data Sheet

Fantini Cosmi CH150R Weekly Programmable Thermostat

Introduction

Electronic programmable thermostat with a microprocessor, with weekly programming, to control heating and air-conditioning installations.

Dimensions (mm)

Programmable thermostat transmitter

TEMPERATURE CONTROL OF A HEATING AND COOLING SYSTEM

ELECTRICAL FEATURES

• Power supply from a remote actuator via two wires.
• System for maintaining the prescribed time via 2 AA 1,5 V batteries (optional).
• Connections length max 100 m.

ACTUATOR CH171D

• Power supply – 230V 50Hz. Voltage-free switching contacts.
• Absorbed power 3VA.
• 2 output relays for temperature and humidity control

HOMOLOGATION AND STANDARDS

• In conformity with EN 60730-2-9; EN 60730-2-11 standards.
• ErP classifi cation: ErP Class IV; 2% (EU Reg. 811/2013 – 813/2013)

INSTALLATION

• Wall mounting by means of fastening base in round boxes 502-503.
• Two-wire connection with the user.
• Install the programmable thermostat at 1,5 m height from the floor, away from kitchens, heat sources, windows and doors.

OPERATION

The programmable thermostat has:

• 3 side wheels for immediate setting of the temperatures.
• 1 SUMMER-WINTER switch button.
• 5 front keys to access directly the operating modes that can be changed by pressing the corresponding key (5 icons on the display for CH150TS model)
• 1 key to access the programming menu (1 icon on the display for CH150TS model)

VISUALIZATION

• Ambient temperature.
• Outside temperature (if external sensor is installed).
• Measured temperature (measured temperature of the body as a function of ambient humidity).
• Humidity percentage in the environment.

OPERATION MODES

MANUAL
The programmable thermostat regulates the room temperature using the set temperature within 24 hours.

AUTOMATIC
The programmable thermostat regulates the set temperatures according to the schedules on weekly profile. It has 2 winter programs and 1 summer program (prescribed). In automatic mode can be set three temperature levels T1-T2-T3.

• T1 can be set from 2 to 40 °C
• T2 can be set from 2 to 40 °C
• T3 can be set from 2 to 40 °C

Note: T3 cannot be less than T2 and T2 cannot be less than T1.

HOLIDAY

• The programmable thermostat follows time and temperature settings of the day “8”.
• This mode stops when it is selected another operating mode.
• The programmable thermostat has a predefined mode –
• Holiday, equal to Saturday and Sunday.
• In Holiday mode can be set three temperature levels T1-T2-T3

JOLLY
The programmable thermostat controls the installation using a set temperature over a period of time ranging from 1 hour to 99 days and 23 hours. At the end of the set time, the programmable thermostat returns to the previously used operation mode. This function can be excluded at any time by setting a different operation mode.

OFF (turned OFF)
This mode is used to manage system operation for maintaining the antifreeze temperature, set from 2 to 7°C. Complete turn OFF of the system T1=OFF.

SPECIAL FUNCTIONS

TEMPERATURE

• Temperature display in Celsius degrees (centigrade), e.g. 20,5°C.
• Temperature display in Fahrenheit degrees, e.g. 76,4°F.

REGULATION TYPE

Standard regulation (ON-OFF).

When it is required heating “ON” the boiler or the cooling system stops the functioning only when is reached the set temperature value (set point) within the differential. It is reached quickly the set-point in installations with low inertia; on the contrary, in systems with high inertia are possible high temperature oscillations.

PROPORTIONAL REGULATION
This regulation type allows you to limit the thermal differential to the minimum, significantly increasing the comfort. In proportional regulation the “heat request“ periods are managed within the proportional band.

ADJUSTABLE PROPORTIONAL RANGE
A range means the value at which the programmable thermostat starts regulation with ON and OFF cycles (installation) as a function of the prescribed period. Range regulation from 1 to 4°C by 0.1°C increments.

ON-OFF CYCLES
Are defined according to the programmable thermostat’s reached temperature, if the ambient temperature is equal to the set-point and the cycles are 50% ON and 50% OFF (proportional contribution +/- one percentage of the integral part contribution).

REGULATION PERIOD
Regulation period is set in 5/10/20 minutes, value managed for ON-OFF cycles.

• EXAMPLE: period of 10 minutes 70% ON = 7 minutes, 30% OFF = 3 minutes. The period and the range should be defined according to the inertia and to the heat transfer type, such as:
• FAN-COIL= transfer for convection
• HEATERS= transfer for convection and radiation (prevailing convection)
• PANNELLI RADIANTI= transfer for radiation and convection (prevailing radiation)

SYSTEMS BEHAVIOR DURING ON-OFF AND PROPORTIONAL REGULATION

PRESCRIBED THERMAL DIFFERENTIAL

• HI high
• LO low

SEPARATE TEMPERATURE PROBES
Possibility to configure temperature probes of four types.

PROGRAMMABLE THERMOSTAT’S TEMPERATURE PROBE

Floor probe (for heating with radiant panels)
It controls the temperature in the room where is installed the programmable thermostat. The floor sensor is used for control and as a limit probe for extra-temperatures of radiant panels’ fluid. Reaching the limit temperature, the programmable thermostat stops the functioning regardless of set-point achievement. The limit is set in the range 15 ÷ 45 °C.

INTERNAL TEMPERATURE PROBE (AMBIENT)
Adjusts the ambient temperature read by the second probe. This mode can be used to manage better the domestic environment, in case when the programmable thermostat is placed in unfavourable position.

EXTERNAL PROBE
Displays the room temperature by touching any button on the programmable thermostat’s front.

Note: the external temperature is not adjusted.

ROOM TEMPERATURE CORRECTION
In cases, when the programmable thermostat position is not favourable for an optimum regulation of the environment, and you do not want to appeal to the ambient secondary probes, is possible to correct the temperature, read by the programmable thermostat. Correction range from -4°C to +4°C with increments of 0,1°C.

PUMP ANTI-SEIZURE FUNCTION
The unit turns the system on for 1 minute per day (h 23.58), thereby operating the water circulation pump and preventing it from blocking. This takes place only if the system has never been turned on during the day.

OPTIMIZATION
The device calculates system’s advance switching-on time needed to achieve the desired temperature at the set time of the day, taking into consideration its thermal inertia. The optimization takes place only at the first system’s switching-on of the day

PUMP ANTI-SEIZURE FUNCTION
The unit turns the system on for 1 minute per day (h 23.58), thereby operating the water circulation pump and preventing it from blocking. This takes place only if the system has never been turned on during the day.

Determines relay “status” at batteries discharge.
No setting
The programmable thermostat is in the situation of batteries discharge (OFF displayed), closes the contact 1-2 (opens 1-4).
The programmable thermostat is in the situation of batteries discharge (OFF displayed), opens the contact 1-2 (closes 1-4).

REFERENCE

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Fantini Cosmi CH150R Weekly Programmable Thermostat Technical Data Sheet

Fantini Cosmi CH150R Weekly Programmable Thermostat Technical Data Sheet