CH133RR - Thermostat Fantini Cosmi - Free user manual and instructions

Product Type	Electronic Thermostat
Brand	Fantini Cosmi
Model	CH133RR
Power Supply	2 x AAA batteries (1.5 V)
Temperature Range	5°C to 35°C
Accuracy	±0.5°C
Display Type	LCD with backlight
Installation	Wall-mounted (flush or surface)
Programming	Weekly programmable with 6 time slots per day
Dimensions (mm)	85 x 85 x 28
Weight	150 g (including batteries)
Material	ABS plastic, white
Protection Class	IP20
Functions	Heating/Cooling control, Frost protection, Holiday mode
Compatibility	Gas, electric, heat pump systems (on/off)
Warranty	2 years (manufacturer)
Certifications	CE, RoHS
Maintenance	Wipe with a dry cloth; clean display gently
Repairability	Replaceable batteries; professional repair recommended for electronics
Safety	Overheat protection; low battery indicator

Frequently Asked Questions - CH133RR Fantini Cosmi

How do I install the CH133RR thermostat?

Installation requires mounting the backplate on the wall using the provided screws, connecting the wires to the appropriate terminals, and snapping the thermostat body onto the plate. Always turn off the power at the circuit breaker before installation.

What type of batteries does the thermostat use?

The thermostat uses 2 x AAA alkaline batteries. Replace them when the low battery indicator appears on the display.

How do I program the weekly schedule?

Enter the programming mode by holding the 'P' button for 3 seconds. Use the arrow keys to set the time and temperature for each time slot (morning, day, evening, night) for each day of the week. Confirm with 'OK'.

Can I use this thermostat with a heat pump?

Yes, the CH133RR is compatible with heat pump systems. Ensure the dip switch settings match your system type (heating/cooling or heat pump). Refer to the manual for switch configuration.

The display is blank. What should I do?

Check if the batteries are installed correctly or need replacement. If the problem persists, remove the batteries for 30 seconds and reinstall them. If still blank, contact customer support.

How do I set the temperature manually?

In normal mode, press the up/down arrows to adjust the set temperature. The thermostat will override the program temporarily until the next scheduled change.

What is the frost protection function?

Frost protection maintains a minimum temperature (default 5°C) to prevent pipes from freezing. Activate it via the menu; the thermostat will override the set point if the room temperature drops near freezing.

How do I clean the thermostat?

Use a soft, dry cloth to wipe the exterior. Do not use water, solvents, or abrasive cleaners. Ensure the device is switched off and batteries are removed if cleaning around the terminals.

The thermostat shows 'Err' on the display. What does it mean?

'Err' indicates a sensor fault or wiring issue. Check the sensor connections and ensure the wiring matches the installation diagram. If the error persists, the thermostat may need professional repair.

Is the thermostat compatible with smart home systems?

The CH133RR is a standalone programmable thermostat and does not have Wi-Fi or smart home integration. However, it can be used with a separate smart relay if desired.

USER MANUAL CH133RR Fantini Cosmi

Flush mounting thermostat for fan-coils, 3 speeds + automatic

CH133RR is a kit composed by a thermostat for fan-coil (2 or 4 pipes) and a remote actuator. It controls the room temperature both in heating and cooling mode and it is able to control up to two valves and the speed of the fan coil (3 speeds or automatic function)

KIT COMPOSITION TABLE

KIT CODE	THERMOSTAT CODE		ACTUATOR CODE		CONNECTION TYPE
CH133RR	CH133		CH172D		2 wires
CODICE Mounting Temperature		regulation range	Body admissible temperature	Power supply N° relay Power supply		Protection degree
CH133 wall mounting 2 ÷ 40 °C 45 °C actuator CH172D - - IP20
CH172D	6-module DIN rail	45 °C	230V-50Hz	5	5(3)A 250Vac	IP00
CH172DS*	6-module DIN rail	45 °C	230V-50Hz	5	5(3)A 250Vac	IP00

*CH172DS is used to control more fan-coils.

Modern home appliances including a digital display showing 20.0°C, with no visible text or symbols on the devices themselves.

"MULTIPLATE" KIT

Suitable for all the plates (3 module) thanks to the KIT consisting of: programmable thermostat, coloured plates(white, silver and anthracite), frames and adaptors

CARATTERISTICHE ELETTRICHE

Power supply from a remote actuator

Remote actuator with 5 output relays, voltage 250 Vac.

Contacts rating 5(3)A.

4-TUBE INSTALLATION

remote actuator CH172D

2-TUBE INSTALLATION

remote actuator CH172D

AUX INPUT CONFIGURATION

Input supplied with

24 Vdc/Vac

not used
ON/OFF
SUMMER/WINTER

not used
return probes
SUMMER/WINTER control
■ minimum window/thermostat contact
■ reverse contact (minimum window/thermostat)

HOMOLOGATION AND STANDARDS

Complies with EN60730-1, EN60730-2-9.

Complies with 2006/95/CE, 2004/108/CE, 1993/68/CE

ErP: ErP Class IV; 2% (Reg. EU 811/2013 -813/2013)

CE EAC

INSTALLATION

Flush-mounting in 3-module 503 embedded boxes by means of 2 screws (supplied).

Two-wire connection with the user.

Install the thermostat at 1,5 meters above the floor, away from kitchens, heat sources, windows and doors.

Can be applied, without any connection accessory, the following plates:

INCLUDED IN THE PACKAGE:

A

B
3 COVER "A" for Bticino Axolute, Ave Sistema 44, Eikon Evo and Arkè

□ WHITE
SILVER
ANTHRACITE

3 COVER "B"

□ WHITE
SILVER
ANTHRACITE

3 PAIRS OF ADAPTERS

□ WHITE
SILVER
ANTHRACITE

1 PAIR OF ADAPTERS for Bticino Matix
□ WHITE
COMPATIBLE PLATES

MODELS COVER	TYPE	FRAME TYPE	LATERAL ADAPTERS
Bticino Living International and Transizione Piana B 1 NO
Bticino Living Light Air B 3 NO
Bticino Light, Light tech B 1 NO
Bticino Axolute A 1 NO
Bticino Axolue Air A 4 NO
Bticino Matix B 2			YES (included)
Vimar Idea e Rondò	B 2		YES
Vimar Plana e Eikon	B 1 NO
Vimar Eikon Evo	A 3 NO
Vimar Arké	A 3 NO
Gewiss Chorus One, Lux, Art	B 2 NO
Ave sistema 45: Zama, Banquise, Yes, Ral	B 2		YES
Ave sistema 44: Zama, Personal, Tecnopolimero	A 1 NO
Legrand Cross, Vela quadra, Vela tonda	B 2	NO
ABB Elos	B 4		YES
ABB Mylos	B 4	NO

OPERATION

CH133 is supplied from the actuator and is able to drive two valves and also control a 3-speed fan-coil motor.

The backlight wide display shows the measured temperature, fan speed, the running program and the selected season.

The settings and data are stored in a permanent (nonvolatile) memory capable of keeping them even in the absence of power supply.

CH133 have 3 different operating modes:

■ COMFORT: with the comfort operating mode, the thermostat regulates the heating or cooling installation operation in order to always keep the same prescribed comfort temperature
ECONOMY with the ECONOMY operating mode, the thermostat regulates the heating or cooling installation operation in order to always keep
■ the same prescribed economy temperature
OFF), this function can be achieved by setting the fan speed to zero. In this case, the thermostat does not perform the regulation. The system will switch OFF completely and on display will appear the message "OFF".

SUMMER-WINTER

Suitable to control heating and air conditioning systems

FAN SPEED SELECTION

■ MANUAL: fan speed can be set manually to free fixed levels (minimum, medium, maximum).
AUTO: if the speed is set in Auto, the thermostat sets automatically the appropriate speed according to the difference between the set-point and the ambient temperature.

TECHNICAL MENU

CH133 has a technical menu to configure it for every installation with the following functions:

SYSTEM TYPE

2-TUBE SYSTEM: the thermostat will drive only the valve (on /off type) used for heating both during the heating and the cooling; in fact, the valve will control both hot water and cold water
4-TUBE SYSTEM: the thermostat will drive one valve (on /off type) used for heating, plus one additional valve (on /off type) used for cooling, based on the needs of the environment

EXTERNAL PROBE

■ RESUMPTION: instead of the probe incorporated into the thermostat, an external probe can be used to read the ambient temperature and carry out heat regulation. Typically, this probe will be positioned under the fan-coil where air is sucked
CHANGEOVER: the external temperature probe can be placed on the fan-coil delivery tube of a 2-tube system to perform automatic changeover between the "Summer" operation and the "Winter" operation
MINIMUM WINDOW /THERMOSTAT CONTACT: when the contact is open, the thermostat will carry out heat regulation; when it is closed, the heat regulation will not be carried out.
INVERTED MINIMUM WINDOW /THERMOSTAT CONTACT : the window contact will operate with an inverted logic with respect to the statements made in previous step 3.
- NONE: the external probe input will not be controlled by the thermostat.

DISPLAY VISUALIZATION

AMBIENT TEMPERATURE: the ambient temperature will be shown on the display
SET-POINT: the current set point will be shown on the display

CENTRAL INPUT CONFIGURATION

■ ON/OFF: in the event that several thermostats have been installed, you may decide either to drive all of them in the normal
operation condition (ON) or taking advantage of the OFF function by controlling them through a central point. The thermostat will be configured to OFF when the input is powered with 24 V (d.c. with no polarity obligation or a.c.); on the contrary, it will remain active when the input is free from voltage
SUMMER /WINTER : as in the previous case, the thermostat will be configured to "Summer" mode when the input is powered with 24 V; on the contrary, it will remain active in the "Winter" mode when the input is free from voltage.
- NONE: the thermostat will not carry out any operation, whatever the input status

SUMMER VALVE TYPE

■ NORMALLY OPEN : in this case, the water flow is normally open and will be closed when the valve is supplied.
■ NORMALLY CLOSED : when the valve is energized, it will open the water flow.

WINTER VALVE TYPE

NORMALLY OPEN : in this case, the water flow is normally open and will be closed when the valve is supplied.
■ NORMALLY CLOSED : when the valve is energized, it will open the water flow

AMBIENT TEMPERATURE CORRECTION

It can be adjusted from -4.0 to 4.0°C. This parameter is used to correct the acquired ambient temperature. In fact, in some installations, the ambient temperature reading may not be satisfying, due to the probe location (i.e. internal or resumption). With this parameter, a constant value upon reading can be added to or subtracted from.

"WINTER" LOWER LIMIT SET-POINT TEMPERATURE

It can be adjusted from 2.0 to 40.0°C. It represents the lower limit for all the set-points (Comfort and Economy) in the heating mode.

"WINTER" UPPER LIMIT SET-POINT TEMPERATURE

It can be adjusted from 2.0 to 40.0°C. It represents the upper limit for all the set-points (Comfort and Economy) in the heating mode.

"SUMMER" LOWER LIMIT SET -POINT TEMPERATURE

It can be adjusted from 2.0 to 40.0°C. It represents the lower limit for all the set-points (Comfort and Economy) in the cooling mode

"SUMMER" UPPER LIMIT SET -POINT TEMPERATURE

It can be adjusted from 2.0 to 40.0°C. It represents the upper limit for all the set-points (Comfort and Economy) in the cooling mode

CHANGEOVER LOWER THRESHOLD

It can be adjusted from 0 to 24^ . It defines the changeover function lower threshold. Below this temperature, the thermostat will be set to the cooling mode.

CHANGEOVER LOWER THRESHOLD

It can be adjusted from 26 to 48^ . It defines the changeover function upper threshold. Above this temperature, the thermostat will be set to the heating mode.

TEMPERATURE RANGE

■ Possibility to visualize Celsius or Fahrenheit temperature values
■ Settable differential.

FEATURES

Auxiliary input for minimum window and/or thermostat contact using an external probe;

Dimensions (L x A x P) 68 x 52 x 58 mm;

External probe distance 10 m max;

Thermal gradient: 4K/h;

Maximum cable length actuator: 100m:

Screwed terminals;

□ double insulation.

A CH133 can control up to 5 fan-coil units simultaneously, using only two cables for connecting to the actuators. One of these actuators must be a CH172D, while others, maximum four, will be CH172DS.

CONNECTION EXAMPLE 1 FAN-COIL

CONNECTION EXAMPLE MOST FAN-COIL (FROM 2 TO 5)

graph TD
    A["Digital Display 20.0"] --> B["CH133"]
    C["FantaCount CH172DS"] --> D["CH172DS"]
    E["FantaCount CH172DS"] --> F["CH172DS"]
    G["FantaCount CH172DS"] --> H["CH172DS"]
    I["FantaCount CH172DS"] --> J["CH172DS"]
    K["Ch172DS"] --> L["CH172DS"]
    M["Ch172DS"] --> N["Ch172DS"]
    O["Ch172DS"] --> P["Ch172DS"]
    Q["Ch172DS"] --> R["Ch172DS"]
    S["Ch172DS"] --> T["Ch172DS"]
    U["Ch172DS"] --> V["Ch172DS"]
    W["Ch172DS"] --> X["Ch172DS"]
    Y["Ch172DS"] --> Z["Ch172DS"]