Aube RC840T Thermostat User Manual

RC840T

Installation Guide

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

Application

p Once mounting and wiring have been completed, return power

to the heating system and test the installation.

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.

q Increase 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.

(

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.

_pTypical Wiring Diagrams

Load

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.

Installation

Low-voltage

-wire

thermostat

Junction box

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.

Red

Black

Blue

You must provide an overload protection and

disconnect as required.

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

Load

For proper installation, use

a screw and a washer.

Junction box

Low-voltage

-wire

thermostat

Red

Black

Blue

On the side of

an electrical box

Inside the wiring compartment

of a baseboard

ꢀ

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.

You must provide an overload protection and

disconnect as required.

ꢀ

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

n Secure relay to the mounting surface using the two mounting

brackets. Use the supplied lock nut to secure the relay to the

junction box.

o Wire the relay and connect according to typical wiring diagrams

(refer to figures 1 & 2).

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Electrical Specifications

Ensure ratings are suitable for your application.

Warranty

;

AUBE warrants this product, excluding battery, to be free from

defects in the workmanship or materials, under normal use and ser-

vice, for a period of three (3) years from the date of purchase by the

consumer. If at any time during the warranty period the product is

determined to be defective or malfunctions, AUBE shall repair or

replace it (at AUBE's option).

Voltage (VAC)

Resistive load (A)

Inductive load (HP)

FLA

208

240

277

347

1.0

1.5

If the product is defective,

(i) return it, with a bill of sale or other dated proof of purchase, to

the place from which you purchased it, or

LRA

24 VAC / 40 mA / 1.2 VA

(

ii) contact AUBE. AUBE will make the determination whether the

product should be returned, or whether a replacement product

can be sent to you.

Control signal

This warranty does not cover removal or reinstallation costs. This

warranty shall not apply if it is shown by AUBE that the defect or mal-

function was caused by damage which occurred while the product

was in the possession of a consumer.

AUBE's sole responsibility shall be to repair or replace the product

within the terms stated above. AUBE SHALL NOT BE LIABLE FOR

ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCI-

DENTAL OR CONSEQUENTIAL DAMAGES RESULTING,

DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WAR-

RANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF

THIS PRODUCT. Some provinces, states or regions do not allow the

exclusion or limitation of incidental or consequential damages, so this

limitation may not apply to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY AUBE

MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED

WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANT-

ABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS

HEREBY LIMITED TO THE THREE-YEAR DURATION OF THIS

WARRANTY. Some provinces, states or regions do not allow limita-

tions on how long an implied warranty lasts, so the above limitation

may not apply to you.

Transformer ratings: 24 VAC / 1.2 VA / Class 2

Ambient operating temperature: -4°F to 140°F (-20°C to 60°C)

Ambient storage: -40°F to 175°F (-40°C to 80°C)

Humidity limits: 0 to 95% non-condensing

Net weight: 11.5 oz. (326 g)

Terminal wire size: 12 AWG

Certification:

r ^R^C⁸⁴⁰^T^Dⁱ^m^eⁿ^sⁱ^oⁿ^s

This warranty gives you specific legal rights, and you may have other

rights which vary from one province, state or region to another.

Customer Assistance

If you have any questions on the product installation or operation,

ꢀ

705 Montrichard Avenue

Saint-Jean-sur-Richelieu, Quebec

J2X 5K8

Canada

Tel.: (450) 358-4600

Toll-free: 1-800-831-AUBE

Fax: (450) 358-4650

Email: aube.service@honeywell.com

For more information on our products, go to

www.aubetech.com

Dimensions are expressed in INCHES [MM]

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