Aube Technologies RT850 User Manual
RT850
Installation Instructions
Electric Heating Solid-State Relay
n
The RT850 Solid State Relay is designed to control a line-voltage
resistive load from a 24 VAC control signal or from signal sources of
4 to 32 VDC. It can be used with fast-commuting thermostat (e.g.
cycles of 15 seconds).
The RT850 is compatible with both mechanical and 2-wire or 3-wire
electronic thermostats (with or without batteries).
I
o
The RT850 must be mounted on a 4” x 4” electrical box.
WARNING: The relay must be mounted so the heat sink fins are ver-
tical or facing upwards. You should also provide space above the
heat sink for warm air to escape. Disregarding this warning may
result in improper operation of the relay. Refer to the diagram below
for correct mounting guidelines.
Application
Installation
1.
p
WARNING: In the following wiring diagrams, the relay is illustrated
sideways for the purpose of showing the terminal wiring. Refer to
installation section for proper positioning of the relay.
2.
Figure 1: Connection to a 2-wire low voltage thermostat using a
Typical Wiring Diagrams
Low-voltage
thermostat
Black
Red
4 x 4 electrical box
Load
Y ou must provide an overload protection and disconnect
as required.
24-VAC control signal
External 24-V AC
transformer
3.
2-wire
All wiring must comply with national and local electrical
code regulations.
The installation should be carried out by an electrician.
Disconnect power before the installation to prevent electri-
cal shock.
n Perform the wiring as per figures 1 and 2.
o Secure the relay to the electrical box.
p Apply power to the heating system.
q Verify the installation by increasing the setpoint temperature at
the thermostat to activate the relay (the LED on the relay should
light up).
Low-voltage
3-wire
thermostat
Black
Red
4 x 4 electrical box
Load
Y ou must provide an overload protection and disconnect
as required.
Figure 2: Connection to a 3-wire low voltage thermostat using a
24-VAC control signal
External 24-VA C
transformer
RT850 400-274-000-D 2007-12-21 1/2
q
Ambient operating temp.: -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: 15.3 oz. (434 g)
Terminal wire size: 12 AWG
Certification:
If you have any questions on the product installation or operation,
contact us at:
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
Electrical Specifications
Voltage 100 to 347 VAC
Resistive load 23 A
Control signal (nominal)
Guaranteed OFF signal
AC: 24 V / 32 mA
DC: 4 to 32 V / 16 mA
5 V A C
2 VDC
Technical Assistance
4.
;
AUBE warrants this product, excluding battery, to be free from defects in the
workmanship or materials, under normal use and service, 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).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place
(ii) contact AUBE. AUBE will make the determination whether the product
This warranty does not cover removal or reinstallation costs. This warranty
shall not apply if it is shown by AUBE that the defect or malfunction 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 INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY
BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER
5.
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 MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE THREEYEAR DURATION OF THIS WARRANTY. Some provinces, states or regions
do not allow limitations on how long an implied warranty lasts, so the above
limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights
which vary according to the province, state or region.
Warranty
from which you purchased it, or
should be returned, or whether a replacement product can be sent to
you.
6.
For more information on our products, go to
www.aubetech.com
RT850 Dimensions
Dimensions are expressed in INCHES [MM]
RT850 400-274-000-D 2007-12-21 2/2
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