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QIACHIP KR2204 Instruction Manual AC 90V-250V 433MHz RF Remote Control Switch 4-CH Relay Receiver

QIACHIP KR2204 Product Diagram

Version: V1.0

Last Updated: 2025-11-9

Model: KR2204

Product Size

QIACHIP KR2204 Size Figure

  • Receiver Length (L) x Width (W) x Height (H): 68mm x 48mm x 20mm
  • Housing Length (L) × Width (W) × Height (H): 75mm × 54mm × 25mm
  • Receiver hole horizontal spacing: 60mm; Vertical spacing: 42mm; Hole Diameter: Ø5mm

Component Description

QIACHIP KR2204 Component Description Figure

  • 1: Indicator light
  • 2: Antenna
  • 3: Learning button
  • L: Live wire
  • N: Neutral wire
  • NC1: Normally closed terminal of relay1
  • COM1: Common terminal of relay1
  • NO1: Normally open terminal of relay1
  • NO2: Normally open terminal of relay2
  • COM2: Common terminal of relay2
  • NC2: Normally closed terminal of relay2
  • NO3: Normally open terminal of relay3
  • COM3: Common terminal of relay3
  • NC3: Normally closed terminal of relay3
  • NO4: Normally open terminal of relay4
  • COM4: Common terminal of relay4
  • NC4: Normally closed terminal of relay4

Wiring Diagram

Disconnect power before wiring.

Figure 1

QIACHIP KR2204 Wiring Diagram 1

Figure 1: Wiring diagram for lamps

  • Load: lamps
  • Input Power: AC 90V-250V

Figure 2

QIACHIP KR2204 Wiring Diagram 2

Figure 2: Wiring diagram for DC motors and Lamps

  • Load: DC motors and Lamps
  • Input Power: AC 90V-250V
  • External power supply: DC Power

Figure 3

QIACHIP KR2204 Wiring Diagram 3

Figure 3: Wiring diagram for AC motors and Lamps

  • Load: AC motors and Lamps
  • Input Power: AC 90V-250V

Function description and setting method

Normal Modes:

(1) Momentary mode

(2) Toggle mode

(3) Latching mode

(4) Reset function

Combination Modes:

(5) 2CH Momentary mode + 2CH Toggle mode

(6) 2CH Momentary mode + 2CH Latching mode

(7) 2CH Toggle mode + 2CH Latching mode

(8) 2CH Latching mode + 2CH Latching mode

NOTE

  • When using the KR2204 model receiver, at least one remote control with four buttons is required.
  • When pairing a second remote, you don't need to press the button on the receiver 8 times again to reset it.
  • Once the receiver and transmitter are paired and a working mode is selected, the receiver will retain this mode even if powered off and on again.
  • The following working modes require the use of QIACHIP brand remote controls (transmitters) and controllers (receivers/wireless remote control switches). Compatibility with other brands is not guaranteed.

(1) Momentary mode

In this mode:

  • Press and hold the remote control button (such as A), and the corresponding relay on the receiver will turn on.
  • Release the remote control button (such as A), and the corresponding relay on the receiver will turn off.

How to set momentary mode

Step 1

Click the learning button of the receiver once. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The momentary mode will be set successfully.

(2) Toggle mode

In this mode:

  • Press the remote control button (such as A), and the corresponding relay on the receiver will turn on.
  • Press the remote control button (such as A) again, and the corresponding relay on the receiver will turn off.

How to set toggle mode

Step 1

Click the learning button of the receiver twice. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The toggle mode will be set successfully.

(3) Latching mode

In this mode:

  • Press the remote control button (such as A), and the corresponding relay A on the receiver will turn on.
  • Press the remote control button (such as B), and the corresponding relay B on the receiver will turn on while relay A on the receiver will turn off.

How to set latching mode

Step 1

Click the learning button of the receiver three times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The latching mode will be set successfully.

(4) Reset function

  • When the KR2204 receiver will be reset, all paired transmitters will be unpaired and will no longer be able to control the receiver.

How to Reset

Click the learning button on the receiver 8 times. The indicator light will flash and then will turn off. The reset will be complete.

(5) 2CH Momentary mode + 2CH Toggle mode

In this mode:

The Momentary mode channels (Channel 1, Channel 2) and Toggle mode channels (Channel 3, Channel 4) operate independently. Activating or deactivating a relay in one mode has no impact on the state of relays in the other mode.

For the two channels set to Momentary mode (Channel 1 and Channel 2):

  • Press and hold the remote control button corresponding to relay channel 1 (such as A), and relay channel 1 on the receiver will turn on; release button A, and relay channel 1 will turn off.
  • Press and hold the remote control button corresponding to relay channel 2 (such as B), and relay channel 2 on the receiver will turn on; release button B, and relay channel 2 will turn off.

For the two channels set to Toggle mode (Channel 3 and Channel 4):

  • Press the remote control button corresponding to relay channel 3 (such as C), and relay channel 3 on the receiver will turn on; Press the remote control button C again, and relay channel 3 will turn off.
  • Press the remote control button corresponding to relay channel 4 (such as D), and relay channel 4 on the receiver will turn on; Press the remote control button D again, and relay channel 4 will turn off.

How to set 2CH Momentary mode + 2CH Toggle mode

Step 1

Click the learning button of the receiver four times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The 2CH momentary mode + 2CH toggle mode will be set successfully.

(6) 2CH Momentary mode + 2CH Latching mode

In this mode:

The Momentary mode channels (Channel 1, Channel 2) and Latching mode channels (Channel 3, Channel 4) operate independently. Activating or deactivating a relay in one mode has no impact on the state of relays in the other mode.

For the two channels set to Momentary mode (Channel 1 and Channel 2):

  • Press and hold the remote control button corresponding to relay channel 1 (such as A), and relay channel 1 on the receiver will turn on; release button A, and relay channel 1 will turn off.
  • Press and hold the remote control button corresponding to relay channel 2 (such as B), and relay channel 2 on the receiver will turn on; release button B, and relay channel 2 will turn off.

For the two channels set to Latching mode (Channel 3 and Channel 4):

  • Press the remote control button corresponding to relay channel 3 (such as C), and relay channel 3 on the receiver will turn on;
  • Press the remote control button corresponding to relay channel 4 (such as D), and relay channel 4 on the receiver will turn on, while relay channel 3 turns off simultaneously.

How to set 2CH Momentary mode + 2CH Latching mode

Step 1

Click the learning button of the receiver five times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The 2CH momentary mode + 2CH latching mode will be set successfully.

(7) 2CH Toggle mode + 2CH Latching mode

In this mode:

The Toggle mode channels (Channel 1, Channel 2) and Latching mode channels (Channel 3, Channel 4) operate independently. Activating or deactivating a relay in one mode has no impact on the state of relays in the other mode.

For the two channels set to Toggle mode (Channel 1 and Channel 2):

  • Press the remote control button corresponding to relay channel 1 (such as A), and relay channel 1 on the receiver will turn on; Press the remote control button A again, and relay channel 1 will turn off.
  • Press the remote control button corresponding to relay channel 2 (such as B), and relay channel 2 on the receiver will turn on; Press the remote control button B again, and relay channel 2 will turn off.

For the two channels set to Latching mode (Channel 3 and Channel 4):

  • Press the remote control button corresponding to relay channel 3 (such as C), and relay channel 3 on the receiver will turn on;
  • Press the remote control button corresponding to relay channel 4 (such as D), and relay channel 4 on the receiver will turn on, while relay channel 3 turns off simultaneously.

How to set 2CH Toggle mode + 2CH Latching mode

Step 1

Click the learning button of the receiver six times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The 2CH toggle mode + 2CH latching mode will be set successfully.

(8) 2CH Latching mode + 2CH Latching mode

In this mode:

The Latching mode channels (Channel 1, Channel 2) and Latching mode channels (Channel 3, Channel 4) operate independently. Activating or deactivating a relay in one mode has no impact on the state of relays in the other mode.

For the two channels set to Latching mode (Channel 1 and Channel 2):

  • Press the remote control button corresponding to relay channel 1 (such as A), and relay channel 1 on the receiver will turn on;
  • Press the remote control button corresponding to relay channel 2 (such as B), and relay channel 2 on the receiver will turn on, while relay channel 1 turns off simultaneously.

For the two channels set to Latching mode (Channel 3 and Channel 4):

  • Press the remote control button corresponding to relay channel 3 (such as C), and relay channel 3 on the receiver will turn on;
  • Press the remote control button corresponding to relay channel 4 (such as D), and relay channel 4 on the receiver will turn on, while relay channel 3 turns off simultaneously.

How to set 2CH Latching mode + 2CH Latching mode

Step 1

Click the learning button of the receiver seven times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The 2CH latching mode + 2CH latching mode will be set successfully.

Electrical characteristics

Parameter Value
Input voltage AC 90V-250V
RF frequency 433.92MHz
Standby current 10 mA
Rated Load Max 2200W
Receiver sensitivity -104dBm
Normal Modes Momentary mode; Toggle mode; Latching mode; Reset function;
Combination Modes 2CH Momentary mode + 2CH Toggle mode; 2CH Momentary mode + 2CH Latching mode; 2CH Toggle mode + 2CH Latching mode; 2CH Latching mode + 2CH Latching mode;
Working temperature -10℃~80℃
Size 68x48x20mm

Warning

  • L and N wires must not be reversed.
  • When using wireless electronic devices, avoid proximity to metal objects, large electronic equipment, electromagnetic fields, and other sources of strong interference.