KRF-HEAT-KIT
Wireless 24V RF Thermostat Kit For Line Voltage Electric Heat Control
A 7-Day Programmable 24V RF Thermostat that communicates wirelessly using a 915 MHz signal with a 120/240V 20A electric heat relay wired to the heater.
Available optional wireless RF Sensors to limit operation based on room occupancy, a window left open or outdoor air temperature conditions.
Heat Kit Includes:
- KRFTP-B 7-Day Programmable RF Thermostat: Features a touch screen LCD display, 7-day programmable schedule, and wireless two-way communication.
- KRFLR-120/240V 20A Heating Relay: A 20A multi-volt relay designed for line voltage electric heat, featuring wireless two-way communication and [cULus Listed] certification.
KRF-HEAT-KIT
Wireless 24V RF Line Voltage Electric Heat Thermostat Kit
A Smart System Designed to Control Electric Resistance Heaters, Such as Baseboard Heaters or Wall Heaters, Using Radio Frequency (RF) Signals for Communication.
Customer Needs Addressed
- Wireless Installation: The thermostat communicates wirelessly with the heat relay, allowing installation anywhere in the room without the need for complex wiring between the thermostat and the heater. This makes installation quick and easy, especially in retrofit scenarios or where running new wires is difficult or costly.
- Energy Efficiency: Electric heat users are looking for ways to reduce their electric bill and energy waste. By adding the optional RF sensors, users can limit operation based on room occupancy, a window left open, or outdoor air temperature conditions.
Key Features and Benefits
| Features | Benefits |
|---|---|
| 24V or Battery Powered Thermostat | Low voltage (24V) is safer and doesn't require a dedicated circuit. |
| 20A Rated Multi-Volt 120/208/240V Heat Relay | Supports high power loads: 2400W @ 120VAC, 4160W @ 208VAC, or 4800W @ 240VAC. |
| 7-Day Programmable Heating Schedule | Helps meet State Energy Code Requirements for efficiency. |
| Thermostat & Relay Communicate Wirelessly using 915 MHz RF Signals* *KRFLR relay is hardwired to the heater |
Lower installation costs due to no required wiring between devices. |
| Optional Wireless RF Accessories: Master Switch, Occupancy or Door/Window Sensors | Enable advanced control, such as setting back the entire apartment with a push of a button or based on occupancy. |
Applications
- Multi-Family Apartments
- Low-Income Housing
- Office Buildings
- Hotels & Hospitality
- Single Family Homes
- States With Strict Energy Codes
- Healthcare Facilities
Product Specifications
KRFTP-B RF Thermostat Specs
- Power Source: 18 to 30 VAC, 50/60 Hz hardwired or 1 x AA Battery powered
- 7-day programmable schedule
- Electronic Touch Screen LCD display.
- Temperature Range: 44°F to 90°F (7°C to 32°C)
- Display Accuracy: ± 1°F
- Wireless Two-way Communication
- Working frequency: 915 MHz
- Working distance: 98.5 feet
- Keypad lockout feature
- Maximum Heat Temperature Limits: 44°F to 90°F
Thermostat Display Example:
Set to 60°F, Current 62°F, Time 11:4 PM
System: Heat, Fan: On, Mode: Heat, Schedule: Leave
KRFLR-120/240V Electric Heat Relay Specs
- Rating: 120/240V, 20A Resistive Load
- Wireless 2-Way Communication
- Working Frequency: 915 Mhz
- Working Distance: 98.5 feet
Warranty Information
2-Year Limited Warranty
System Diagram Overview
The system diagram illustrates the wireless RF line voltage electric heat control setup. It shows the PAW Heater connected to 120/208/240V power, communicating via a 20A Max KRFLR-120/240V Heating Relay. The KRFTP-B Thermostat, powered by 24V DC or AA Battery, communicates wirelessly with the relay using 915 MHz RF signals.
Optional RF Accessories for Enhanced Control
- KRF-PIR-SENSOR: RF Battery-powered Occupancy PIR Sensor for automatic temperature setback when the room is unoccupied. Setback Options: (44°F - 65°F).
- KRF-WINDOW-SENSOR: RF Battery-powered Window Sensor for automatic temperature setback when a window or door is left open. Setback Options: (44°F - 65°F).
- KRF-MASTER-SWITCH: RF Battery-powered Master Setback Switch. A manual switch to setback all paired systems upon exiting the building. Setback Options: (44°F - 65°F).
- KRF-REPEATER: 5V USB-C Powered RF Signal Amplifier designed to amplify RF data signals and extend the range of the wireless transmission.
Ordering Information
Complete Kit
| Model | UPC | Description |
|---|---|---|
| KRF-HEAT-KIT | 70425 | RF Thermostat Kit, w/ 1 x KRFTP-B Programmable BP Thermostat & 1 x KRFLR-120/240V Heat Relay |
Order A'la Carte
| Model | UPC | Description |
|---|---|---|
| KRFTP-B | 70134 | Programmable Battery Powered Multi-System RF Thermostat |
| KRFLR-120/240V | 70135 | 20A Heat Relay, 120V or 240V |
Optional Accessories
| Model | UPC | Description |
|---|---|---|
| KRF-PIR-SENSOR | 70152 | PIR Sensor, Battery Powered, For KRFTP Thermostat |
| KRF-OUTDOOR-SENSOR | 70153 | Outdoor Temperature Sensor, Battery Powered, For KRFTP Thermostat |
| KRF-REPEATER | 70154 | RF Repeater, USB Powered, For KRFTP Thermostat |
| KRF-WINDOW-SENSOR | 70155 | Window/Door Sensor, Battery Powered, For KRFTP Thermostat |
| KRF-MASTERSWITCH | 70156 | Master Switch, Battery Powered, For KRFTP Thermostat |
Contact Information
King Electrical Manufacturing Company
9131 10th Avenue South, Seattle, WA 98108
Phone: 206.762.0400
Fax: 206.763.7738
Website: www.king-electric.com
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