OTH550 & OTH557
400-612-003-D 2009-06-23 2/2
The configuration switches are on the back of the thermostat. The
factory settings are indicated by the gray cells in the following table.
n
Press the and buttons simultaneously for three seconds to
enter the configuration menu.
o
Press the or button to set the displayed parameter.
p
Press the and buttons simultaneously for one second to
display the next parameter.
q
Press the and buttons simultaneously for three seconds to
exit the configuration menu.
NOTE
: The thermostat will automatically save any changes made and
return to its normal display if you do not press any button for one minute.
The thermostat normally displays the actual temperature.
•
To view the setpoint temperature, press
once on either temperature adjustment
button. The setpoint temperature will
appear for 5 seconds. The icon
appears when the setpoint is displayed.
•
To change the setpoint temperature,
press the appropriate button until the
desired value is displayed.
•
The screen is backlit for 10 seconds when any button is pressed.
During a power outage, the setpoint is saved in memory. You do not
need to adjust the temperature when power returns.
*
The OTH557 model is not suitable for residential use.
Setpoint range
: 5 °C to 30 °C (41 °F to 86 °F)
Display range
: 0 °C to 60 °C (32 °F to 140 °F)
Resolution
: ± 0.5 °C (± 1 °F)
Storage
: -20 °C to 50 °C (-4 °F to 120 °F)
Approval
:
THREE (3) YEARS LIMITED WARRANTY
OUELLET CANADA INC. warrants the component parts of the OTH550
and OTH557 against defects in material and workmanship for a three (3)
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 pay-
ing the installation costs or other secondary charges linked to replacing
the unit or the component part(s).
If you have any questions on the product, call our technical support team
at:
Ouellet Canada inc
180, 3rd Avenue
L’ISLET, Quebec, Canada G0R 2C0
Quebec area:
(418) 247-3947
Canada / U.S.:
1-800-463-7043
Fax:
(418) 247-7801
Sales:
Web:
www.ouellet.com
p
Configuration switches
3.
Switch
1
Keypad lock
a
a. The settings are locked. The temperature adjustment buttons
only allow you to view the temperature setpoint.
Off
On
2
Cycle length
b
b. Select short cycles (15 seconds) in most cases as it provides bet-
ter temperature control. However, you must select long cycles (5
minutes) if you have a fan-forced heater.
is displayed when
long cycles are selected.
Short
Long
3
Temperature
display format
°C
°F
q
Configuration Menu
4.
Parameter
Settings
Display and
default setting
Minimum
setpoint
• 5 °C - 30 °C
(41 °F - 86 °F)
Maximum
setpoint
• 5 °C - 30 °C
(41 °F - 86 °F)
r
Temperature Display and Setting
5.
s
Power Outage
6.
t
Troubleshooting
7.
PROBLEM
SOLUTIONS
Thermostat’s
housing is hot.
This is normal. When the thermostat is running
at full capacity, its housing can reach 40 °C
(104 °F).
Wrong temperature
is displayed.
Rectify if any of the following conditions applies:
•
The thermostat is exposed to air draft.
•
The sticker on the thermostat’s screen has
not been removed.
•
The thermostat is located near or above a
heat source such as a light dimmer.
Display disappears
and reappears after
a few minutes.
The thermal protection device on the heater has
temporarily opened. This can happen if the
heater is obstructed by furniture or curtain and
has overheated, or if the heater’s thermal pro-
tection device is too sensitive.
u
Specifications
8.
OTH550
OTH557*
Power supply
120/208/240 VAC, 50/60 Hz
277/347 VAC, 50/60 Hz
Minimum
load
1.25 A @ 120/208/240 VAC, 60 Hz
150 W @ 120 VAC, 60 Hz
260 W @ 208 VAC, 60 Hz
300 W @ 240 VAC, 60 Hz
2 A @ 120/208/240 VAC, 50 Hz
250 W @ 120 VAC, 50 Hz
430 W @ 208 VAC, 50 Hz
500 W @ 240 VAC, 50 Hz
2 A @ 120/208/240 VAC, 50/60
Hz
550 W @ 277 VAC, 50/60 Hz
700 W @ 347 VAC, 50/60 Hz
Maxaximum
load
16.7 A @ 120/208/240 VAC, 50/60 Hz
2000 W @ 120 VAC, 50/60 Hz
3465 W @ 208 VAC, 50/60 Hz
4000 W @ 240 VAC, 50/60 Hz
16.7 A @ 120/208/240 VAC,
50/60 Hz
4400 W @ 277 VAC, 50/60 Hz
5500 W @ 347 VAC, 50/60 Hz
;
Warranty
9.
Customer Assistance
10.