Ouellet OTH824 - Manual

OTH824
Installation Instructions
24 V low voltage power base
Introduction
This power base is designed to power an OTH800 series control
module.
This low voltage power base can be used to drive a line voltage load
using a relay or connect directly to equipment using a 24 V signal.
This power base is compatible with most relays, but it has been
optimized for use with an Aube relay.
Aube offers solid state relays (SSR) such as the RT850 and
RT850T (with built-in 24 V transformer), and electromechanical
relays such as the RC840 and RC840T (with built-in 24 V
Technical Specifications
Maximum load : 0.5 A / 24 VAC
Operating temperature : 32°F to 122°F (0°C to 50°C)
Storage : -4°F to 122°F (-20°C to 50°C)
Size (H • W • D) : 124 x 70 x 23 mm (4.89 x 2.76 x 0.91 in)
Wire gauge : 14 to 22 AWG
Installation Steps
!
Connect the base. See typical wiring diagrams.
Electric heating (figures 1, 2 and 3)
• Connect the base to the relay. Use a relay with a built-in
24 V transformer or a relay and a 24 V external transformer.
• Connect the relay to the load (see relay’s instructions).
Hot water heating (figure 4)
• Connect the base to the 24 V valve of the hot water heating
system.
"
For a floor heating installation, connect the floor
sensor between the S and R terminals of the base
(OTH700 series only).
#
Push the excess wire into the wall and secure the
base using the provided screws and wall anchors.
$
Before mounting the control module onto the base, configure
the switches located on the control module (heating cycles and
display) and install the control module onto the base (refer to
the user guide).
%
Once the thermostat is properly installed, return power to the
heating system.
Material
!
One (1) OTH824 low voltage power base
"
Two (2) anchors
#
Two (2) mounting screws
Installation Guidelines
Cut power to the heating system at the main power panel to
avoid electrical shock. Installation should be carried out by an
electrician.
For a new installation, choose a location about 5 ft. above the
floor.
The thermostat must be installed facing the heating system
(except for floor heating installations) and on an inside wall.
Avoid locations where there are air drafts (top of staircase, air
outlet), dead air spots (behind a door), direct sunlight, con-
cealed chimneys or pipes or an air diffuser.
19/
02/
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400-609-005
-A
OUELLET CANADA INC. ONE (1) YEAR LIMITED WARRANTY
OUELLET CANADA INC. warrants the component parts of the OTH824 against
defects in material and workmanship for a one (1) year period from the date of
purchase, under normal use and service, when proof of purchase of such is provided to
the manufacturer.
The obligation of Ouellet Canada inc., under the terms of this warranty, will be to supply
a new unit and this releases the manufacturer from paying the installation costs or
other secondary charges linked to replacing the unit or the component part(s).
180, 3rd Avenue
P.O. Box 188,
L’ISLET, Quebec, Canada G0R 2C0
If you have any questions concerning the installation of the
OTH824 power base, call our technical support team at:
Tel.: Quebec area: (418) 247-3947
Canada / U.S.: 1-800-463-7043
Fax: (418) 247-7801
Sales: [email protected]
Web: www.ouellet.com
Monday to Friday from 8:00 AM to 5:00 PM EST.