RC840T

Installation Guide

On/Off Switching Electric Heating Relay with Built-in 24 V Transformer

nApplication

The RC840T Electric Heating Relay is designed to control a line voltage resistive load from a low voltage thermostat. The RC840T relay has a built-in 24 V transformer and is compatible with 3-wire (R,C,W) thermostats as well as 2-wire mechanical and battery- operated thermostats.

The RC840T operates silently and can be installed in bedrooms, living rooms, or any other occupied area without disturbing occupants. On a call for heat, the relay is immediately activated; there is no delay. This increases temperature control and comfort.

pOnce mounting and wiring have been completed, return power to the heating system and test the installation.

qIncrease the thermostat temperature to activate the relay. Allow system operation long enough to proof installation. Once installation has been proofed, set temperature to normal setpoint.

pTypical Wiring Diagrams

NOTE: Not recommended for fast-cycling modulated regulation. For fast-cycling heating equipment, It is recommended to use the RT850 or RT850T (integrated 24 V transformer) Solid State Relay.

I

oInstallation

The RC840T must be installed in an area where the temperature is between -4°F and 140°F (-20°C and 60°C).

The RC840T can be installed on the side of an electrical box or a distribution panel or inside the wiring compartment of an electric baseboard.

Load

Low-voltage

Junction box

2-wire

 

thermostat

Red

 

 

Black

 

Blue

You must provide an overload protection and disconnect as required.

Figure 1 : Connection to a 2-wire low voltage thermostat

For proper installation, use a screw and a washer.

On the side of

Inside the wiring compartment

an electrical box

of a baseboard

Low-voltage 3-wire thermostat

Load

Junction box

Red

Black

Blue

All wiring must comply with national and local electrical code regulations.

Installation should be carried out by an electrician. Disconnect power supply before installing the relay to prevent electrical shock.

nSecure relay to the mounting surface using the two mounting brackets. Use the supplied lock nut to secure the relay to the junction box.

oWire the relay and connect according to typical wiring diagrams (refer to figures 1 & 2).

You must provide an overload protection and disconnect as required.

Figure 2 : Connection to a 3-wire low voltage thermostat

RC840T

400-276-002-C

17/1/07

1/2

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Aube Technologies RC840T manual Installation Guide, Application, Typical Wiring Diagrams Installation
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RC840T specifications

Aube Technologies RC840T is an advanced thermostat specifically designed for optimal temperature control in residential settings. This device is renowned for its user-friendly interface and versatility, making it a popular choice among homeowners seeking energy efficiency and comfort.

One of the standout features of the RC840T is its capability for multi-stage heating and cooling control. This allows for precise temperature management across various systems, including single-stage heat pumps and multi-stage HVAC systems. The thermostat supports up to four stages of heat and two stages of cooling, ensuring that homes maintain a comfortable environment regardless of external weather conditions.

The RC840T utilizes a variety of advanced technologies to enhance its performance. One key feature is its adaptive intelligent recovery, which learns the heating and cooling patterns of the household. This technology enables the device to begin heating or cooling before the scheduled time, ensuring that the desired temperature is reached by the time the homeowner expects it.

Integration with various heating systems is seamless, as the RC840T is compatible with electric baseboard heating, radiant heating, and forced-air systems. This versatility makes it an ideal choice for different home environments. Additionally, the thermostat boasts a universal application, supporting both 24V systems and line voltage applications, making installation straightforward and efficient.

Another noteworthy characteristic of the RC840T is its large, easy-to-read display. The backlit LCD screen provides clear visibility in any lighting condition, and the intuitive controls allow for effortless adjustments. Users can set up to seven programmable periods per week, customizing the temperature settings to align with their daily routines, which ultimately promotes energy savings.

The RC840T also features a built-in temperature sensor that ensures accurate readings, contributing to its energy-efficient performance. With the added capability of setting a vacation mode, homeowners can easily save energy while away, further enhancing its cost-saving benefits.

In conclusion, Aube Technologies RC840T combines advanced technology with versatile features to offer an efficient and user-friendly solution for temperature control in homes. Its compatibility with various heating and cooling systems, intuitive interface, and energy-saving capabilities make it a worthwhile investment for any homeowner looking to improve their climate control experience.
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