Ouellet OTH824 User Manual

OTH824

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Installation Instructions

24 V l ow voltage power b ase

In tro du c ti on

This power base is designed to power an OTH800 series control
module.

This low voltage pow er base ca n be used to drive a li ne vo ltage lo ad
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

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 locati ons where th ere are air drafts (top of staircas e, air
outlet), dead air spots (behind a door), direct sunlight, con­cealed chimneys or pipes or an air diffuser.

௡ఄంఐ఍ఀ஻ ௌ ௕஻ ௮ఄఉంఇఀ஻ ఐఉఄఏ

௡ఄంఐ఍ఀ஻ ்௕஻ ௨ఐఇఏఄఋఇఀ஻ ఐఉఄఏఎ

Material

! One (1) OTH824 low voltage power base
" Two (2) anchors
# Two (2) mounting screws

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 an d R terminals o f the base
(OTH700 series only).

# Push the excess wire into the wa ll and sec ure the

base using the provided screws and wall anchors.

$ Before mounting the control module onto the base, configure

the switches locat ed on the co ntrol modu le (hea ting cycl es 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.

௡ఄంఐ఍ఀ஻ ௎௕஻ ௮ఄఉంఇఀ஻ ఐఉఄఏே஻ ఍ఀఇ௼ఔ஻ ఄఉఎఄ௿ఀ஻ ௽௼ఎఀ௽ఊ௼఍௿஻

ᎹᎺᎿᎰᎥᎋ ᎿᏓᏐᎋ ᎽᎮᎣ᎟᎛Ꮏᎋ ᏝᏐᏗᏌᏤᎋ ᏢᏔᏟᏓᎋᏍᏠᏔᏗᏟ᎘ᏔᏙᎋ ᎝᎟ᎋ Ꮑᎋ ᏟᏝᏌᏙᏞᏑᏚᏝᏘᏐᏝᎋ ᏔᏞᎋᏌᏗᏞᏚᎋ ᏌᏡᏌᏔᏗᏌᏍᏗᏐ᎙

௡ఄంఐ఍ఀ஻ ௏௕஻ ௞ఊఉఉఀ௾ఏఄఊఉ஻ ఏఊ஻ ௼஻ ఒ௼ఏఀ఍஻ ఃఀ௼ఏఄఉం஻ ఑௼ఇ఑ఀ

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

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: [phone]

Canada / U.S.: 1-800-463-7043
Fax: [phone]
Sales: [e-mail]
Web: www.ouellet.com
Monday to Friday from 8:00 AM to 5:00 PM EST.

19/02/2004 400-609-005-A