General Information 1. General Information 1.1 Safety Attention Please read the following safety instructions carefully before installation. Please observe all instruction in order to avoid any injury or damage to equipment or property. Warning/Attention,a risk of injury or equipment damage. !...
Product Introduction 1.2 Package The package includes the following items. Please check when open the box. In case of damage or incomplete delivery, please contact your supplier im- mediately. HRV 1pic Please check the sticker and model to make sure they are correct. Mounting bracket 1 piece Condensate drain connector (with seal ring)
Product Introduction 2.2 Specifications CFA 250T CFA 350T CFA 500T Housing material Sprayed sheet metal Internal materials Heat exchanger Polystyrene materials Fan motor type Machine Filter class G4 or optional F7 Two screen controls, buttons + indica- Control Panel tor light/digital tube Bypass 100% auto bypass Standard...
Installation Introduction 3. Installation 3.1 Position ·All installation of the system must be carried out by qualified personnel, including all electrical engineering and connections should be completed by qualified personnel or Electrician. ·This equipment is designed to be installed in storage rooms, attic or in- terstitial spaces, away from places exposed to frost, water or extreme heat.
Installation Introduction The operation process from right installation (factory default) to the left installation is as follows: Step 1:Press the position indicated in the figure above to open the access panel buckle. Step 2:Remove the access panel. Step 3:If the equipment is equipped with an F7 filter as option, switch the positions of the two filters as shown in the figure.
Page 9
Installation Introduction Step3:Pull out the sockets from PCB for use. Step4:Open the controller casing. Open the controller casing from here RS485 sockets Sockets for remote control Step5:Connect the wires between controller and sockets (PCB) according to “B, A, GND and +12V”. Note: All the wires need to pass through the threading connector on the cover of the electric control box, and tighten the threading connector.
Page 10
Installation Introduction Step6:Finally, plug the sockets that has been wired back into the PCB, and cover the electric control box. Wiring Diagram Step 5 Electrical heater signal fan-1 fan-2 By-pass Temperature and humidity sensor(RA) Temperature and humidity sensor(OA) Temperature sensor(FR/EA) Temperature sensor(SA) WIFI CO2 sensor...
Installation Introduction 3.5 Condensate drainage Before using, make sure to connect a condensate drain with this device. The connection process for condensate drain is as below: ·According to the installation way, install the drain connector and drain seal to the corresponding position. Right type Right type Left type...
Operation 4. Operation Instruction 4.1 Before Startup Please carefully check the followings: ·Check the voltage and frequency of the power source and its connection if is correct. ·Should be properly connected to the ground line. ·Connected to ducting and condensation pipe properly 4.2 Default factory setting The device comes with below default setting: CFA 250T...
Page 13
Operation Panel 1 Instruction Error Speed control Bypass Defrosting Fan Boost Filter timer reset Speed control: Press to switch from Speed 1 to 4, speed 1 is “traveling mode”, when switch to this mode, the ventilator turns to super low speed. Fan Boost: Press to switch to the boost speed for 30 minutes, and then return to original status.
Page 14
Operation Panel 2 Instruction Speed button Air volume setting: Press “Speed” to select speed 1 to 4, then press “+” or “-” to set air volume for the selected speed, after 4 speeds setting done then press “Speed” again to save setting or it will be automatically saved after 15 seconds without operation.
Operation 4.4 APP Instruction 1) Search “SMART LIFE” at the APP Store or scan the QR code on the right to download the APP. 2) Sign up and log in your account. 3) Install the WIFI module onto the PCB board, as indi- cated in the wiring diagram.
Operation 4.5 RS485 Protocol MODBUS-RTU Protocol details are as followed. Item Specifications Interface Half-Duplex RS-485 Baud Rate 9600 Transmission RTU(Remote Terminal Unit) Address+Function code+Data quantity+Data Data Stream 1...Data n+CRC MS byte+CRC LS byte Address 0-99 Function code 3, 6 CRC Check CRC-16 Byte format 10bit format: 1 start bit+8 data bit+1 stop bit...
Page 17
Operation Address Range Default Function Remarks 0(0x0000) 0, 1 0=OFF 1=ON Every setting will reset 1(0x0001) 0-250 Filter used time (day) the current alarm Filter replacement 2(0x0002) 0-120 0=Alarm off alarm (day) 0=Filter normal 3(0x0003) 0, 1 1=Filter needs cleaning 4(0x0004) 0-120 Data≥20, actual tem-...
Page 18
Operation Bit0=OA temp and hum error Bit1=RA temp and hum error Bit2=OA temp error Bit3=RA temp error Bit4=CO2 sensor error Bit5=reserved Fixed position are Bit6=Bypass on not affected by (0x000F) Bit7=Electric heater on left or right type. Bit8=Supply fan error Bit9=Exhaust fan error Bit10=Fire alarm signal Bit11=Forced ON signal...
Page 19
Operation Bypass temperature differ- (0x001 2-15 ence(℃) 0=Electric Heater OFF (0x001 0, 1 1=Electric Heater ON 0=Manual Bypass OFF (0x001 0, 1 1=Manual Bypass ON (0x001 0-10000 Fan 1 output voltage 10000=10.00v (0x001 0-10000 Fan 2 output voltage 10000=10.00v Already select- Model selection ed based on 0=250CHM...
Maintenance 5.Maintenance 5.1 Filter replacement It’s recommended that all filters be inspected every 3 months and replaced once or twice a year, or be replaced when the “filter alarm” indicator on the control panel illumined. Otherwise the performance or energy efficiency of the ventilator might be affected.
Maintenance 5.2 Drain pipe inspection It’s recommended that the condensate drain pipe should be inspected once or twice a year, preventing the leakage due to poor drainage. 5.3 Air duct, air inlet/outlet inspection It’s recommended that the air duct, air inlet/outlet should be inspected reg- ularly, preventing the abnormal ventilation of the equipment due to block- age.
Failure Diagnosis 6.Fault diagnosis Please inspect the machine refer to the table below if this product works abnormally, and contact our service center to solve the problem in time. Phenomenon Possible reasons Solutions Filter reset indica- - Filter should be cleaned or - Clean or replace the tor light on replaced...
Optional accessories Users can configure the following accessories optionally according to their need. Picture Descriptions F7 filter for fresh air purification Remote touch screen controller CO2 sensor with 5 meter wire WIFI Module...
Need help?
Do you have a question about the Comfort Fresh Air 250T and is the answer not in the manual?
Questions and answers