TOSHIBA TCB-SFMCA1V-E (02) PDF Document

You must adhere to the following safety warnings when handling the TOSHIBA TCB-SFMCA1V-E:

WARNING: Failure to adhere to these directions could result in serious bodily harm or loss of life if the product is handled improperly.

• Ask for installation to be performed by the dealer or a professional. This product should only be installed by a qualified installer.

• Before starting to install the Multi function sensor (CO2 / PM), read carefully through the Installation Manual, and follow its instructions to install the Multi function sensor (CO2 / PM).

• Only a qualified installer or qualified service person is allowed to install the Multi function sensor (CO2 / PM). If the Multi function sensor (CO2 / PM) is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.

• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock when removing the cover and main unit.

• Do not use the product under the following operating environment and conditions, as this may result in a fire or electric shock, or injuries caused by the product falling down:

– Locations where the ambient temperature exceeds the maximum ambient temperature in the “Features”.

– Locations which generate corrosive gases, flammable gases and salt damage.

– Locations exposed to rain or water, or where there is a lot of oil splashes (including the areas under the eaves).

– Locations where a strong breeze blows past.

– Locations exposed to intense vibration/impact.

– Locations where a lot of sulfur dioxide exists e.g. hot springs etc.

– Locations in contact with flammable materials.

– Locations where there is a lot of dust and metallic powder.

In addition, do not use the unit in the bathroom or kitchen as the design is not waterproof or oil proof.

CAUTION: Text set off in this manner indicates that failure to adhere to the directions in the caution could result in slight injury or damage to property if the product is handled improperly.

Wear cotton or other thick gloves during installation work. Failure to observe this precaution may result in injury from parts, etc.

Please observe the following precautions during installation:

• This multi function sensor is designed for use with the heat recovery ventilation unit only. Make sure a compatible model is installed.

• Be sure to connect this multi function sensor to the header unit for systems in which only heat recovery ventilation units are connected in a group connection. For systems linked to an air conditioner, be sure to connect this multi function sensor to the heat recovery ventilation unit with the smallest indoor address. For the VN-U0150/U0200 series, be sure to connect to the master unit.

• In systems that are linked to an air conditioner, if this multi function sensor is connected to an incompatible air conditioner, Fan speed [AUTO] cannot be selected from the remote controller. It is possible to run the ventilation unit at an automatic fan speed control regardless of the fan speed set by the remote controller.

• As PM2.5 concentration control aims to reduce the indoor PM2.5 concentration through ventilation, in outdoor locations where the PM2.5 concentration is high (along main roads or those who live in industrial regions), we recommend using a high performance filter (ePM1 55%). If you are not going to use a high performance filter, we recommend that you disable the PM2.5 concentration control setting.

• Do not use this multi function sensor in applications that require a high level of safety and reliability such as medical devices, fire prevention devices and so on. In addition, do not install in an environment where strong magnetism is generated.

• When using indoor in an environment where cigarette smoke is constantly being generated, this sensor may deteriorate and the correct concentration may not be displayed.

• The product cannot be used in an environment where there is a lot of sulfur dioxide present e.g. hot springs etc. This will lead to a degradation of the sensor.

• This CO2 sensor is equipped with internal temperature and humidity sensors to correct the measured value as required. However, if the sensor is exposed to volatile organic compounds (VOCs), the measurement accuracy of the CO2 concentration may deteriorate due to the pollution effect.

• At night and during periods where few people go in and out of the room or office, the CO2 automatic calibration function uses the lowest CO2 concentration as a reference value. The CO2 concentration detected by the CO2 sensor may differ from the actual indoor CO2 concentration. As a result, in locations where the indoor and outdoor CO2 concentrations are believed to be constantly higher compared to the general concentration (along main roads, in industrial regions etc.), the detected CO2 concentration may deviate greatly from the actual concentration. In such a situation, disable autocalibration in the DN code settings first before use. In addition, implement force calibration function where necessary.

• Do not carry out modifications such as attaching a filter for the purpose of preventing infiltration by dust etc. to the opening of each sensor installed in this multi function sensor. The sensor will no longer be able to detect the correct value.

Please note the following operating precautions:

• This multi function sensor is not a measuring instrument based on the Measurement Law. Do not use the sensor unit as a safety device to detect and prevent toxic gases or flammable gases that will result in oxygen deficiency, carbon monoxide poisoning and so on.

• The concentration is detected by each sensor in the indoor suction (RA) air path of the heat recovery ventilation unit. As unevenness will also occur in the living room concentration, a difference between the concentration displayed in the remote controller and the environmental measurement etc. may result. If there is a difference, you may adjust the sensor sensitivity or correct the concentration to be displayed in the remote controller.

• In this multi function sensor, the heat recovery ventilation unit cannot be started/stopped automatically.

• When running at Fan speed [AUTO], the ventilation mode is fixed as the [Heat exchange] mode regardless of the heat exchange mode set from the remote controller. (The remote controller display will remain in the ventilation mode set.)

• During 24-hr ventilation operation and nighttime heat purge operation, the automatic fan speed control is not performed by this sensor.

• If you want to remove odors, dust, etc. by ventilation regardless of the indoor concentration, select [High] instead of [AUTO] for the fan speed.

• Due to the impact of sudden changes in the temperature and humidity (rain etc.), the detection accuracy of this sensor may change and the indoor concentration may not be detected correctly. In such a situation, run the unit with the fan speed set to [High] for a while instead of [AUTO].

• When running at Fan speed [AUTO], the fan speed may increase automatically and the noise may get louder.

Yes, please note the following:

• As the detection concentration of each sensor may differ depending on the operating environment, product installation conditions and so on, the target concentration may be exceeded depending on the operating environment.

• This multi function sensor is designed for use in a typical indoor air environment. When it is used in an extremely dusty room etc., the concentration may not be detected correctly.

The TOSHIBA TCB-SFMCA1V-E is compatible with the following heat recovery ventilation unit: VN-U*** series.

Component name	Screws	Setting Manual	Owner’s Manual
Form			This manual
Qty.	2	1	1

Be sure to install the multi function sensor (CO2 / PM) before installing the indoor unit. Follow these steps for installation:

1. Remove the fixing screws at the 2 locations while supporting the inspection cover with your hand and then remove the inspection cover. For VN-U0150 and U0200 series, please remove the inspection cover on the master unit.

2. Remove the heat exchange element and filter. NOTE: The single heat exchange element weighs 2 – 4 kg. Be careful not to drop it.

3. Remove screws A (M4 x 6 mm, 2 pcs) and loosen screws B (M4 x 6 mm, 2 pcs) fixing the cover of the electrical control box, then slide the electrical control box cover in the direction of the arrow to remove it.

4. Pass the lead wire of the multi function sensor (CO2 / PM) through the bushing of the heat recovery ventilation unit, then connect the connector to the heat recovery ventilation unit P.C. board CN521 (5P: Red).

5. Attach the multi function sensor (CO2 / PM) to the heat recovery ventilation unit with the two supplied screws.

6. Attach the electrical control box cover, heat exchange element and inspection cover at their original positions.

7. Follow the instructions in the included “Setting Manual” to set the multi function sensor (CO2 / PM) from the wired remote controller. Be sure to configure the settings or the concentrations will not be displayed in the remote controller and automatic fan speed control will also not be performed.

After completing the installation, the installer should conduct a test run to see if there are any faults. Then, the installer must explain the precautions pertaining to this product to the customer according to the contents described in the manual.

The installer should also ask the customer to keep the manual together with the Heat recovery ventilation unit’s Installation Manual.