General Information:
This thermostat is designed to operate line voltage electric resistance
type heating.
A precision thermistor is employed to sense temperature. The
thermistor resistance is read by a microprocessor to determine if
there is a need for heat. If heat is required, the microprocessor turns
on the heater. Once the need for heat is satisfied, the thermistor
senses the change in temperature and causes the microprocessor
to turn off the heater. The microprocessor will keep the heater on for
at least two minutes before allowing a temperature change to turn it
off again. As a result of using this method of temperature control, the
thermostat can provide greater comfort and energy savings. To obtain
even greater energy savings, this model can be easily placed into an
economy/setback mode.
SPECIFICATIONS:
Temperature Range:
40.0°F to 85.0°F (4.5°C to 29.5°C)
Display Format:
Liquid Crystal Display (LCD)
Sampling Rate:
Every second
Accuracy:
±1.0°F
Power Source:
208VAC - 240VAC, 50 - 60Hz
Load:
16 amps resistive or 1/2 horsepower
Installation:
This device should be installed and serviced by a qualified electrician.
The thermostat has been designed to mount to a standard 2" X 4"
electrical outlet box. Leveling of the thermostat is not required.
Mounting screws are provided. Mount the thermostat about five feet
above the floor in an area with good air circulation.
Avoid mounting the thermostat where it will be affected by drafts,
air from ducts, and radiant heat sources such as appliances or
the sun.
CAUTION:
“Stop” should not be used as a disconnect from power to the
heating unit. If the thermostat or heating unit needs servicing,
it must be disconnected at the source. This device should only
be serviced by a qualified electrician.
SAFETY FEATURES / ERROR MESSAGES:
This RLV thermostat can detect several internal errors and can
shut down safely and properly in the event one of these errors.
If the display shows “Ur” or “Or” there is thermistor error. When the
thermistor returns to normal, the thermostat will continue to function.
If the thermistor does not return to normal, the thermostat will be
inoperable. If a severe internal error occurs the display will show
“dEAd” and will be permanently inoperable. If a less severe error
occurs the display will show “EOL”. The thermostat will continue to
partially function, but with a setpoint of 40°F to avoid damage from
freezing.
9510-0747 Rev B
11-25-08
Digital Non Programmable Line V
oltage
Installation and Operating Instructions
RLV-240S
R
PSG Controls, Inc.
Installation:
Read "General Information" before beginning.
Turn electrical power "OFF" where installation is being done!!
Screw thermostat mounting plate to outlet box.
Push excess wires into outlet box.
Insert groove on bottom of thermostat into lip on bottom of
mounting plate (Refer to figure next page).
Tilt thermostat up and flat against mounting plate.
Drive holding screw into top of thermostat.
Installation is now complete.
Power can now be turned on.
Attach wires per diagram above.
Note:
Provide proper wire size and overload protection to meet code
and safety requirements.
Insure proper line voltage for model being installed (208VAC to
240VAC).
From
Power
Supply
To
Heater
Black
Blue
White
Black
Red
o
F
Mode
75.2
MANUAL
Black
White
Stop/On
o
F
Increase
temperature
Stop/On
Button
Decrease
temperature
Stop/On
Mode
75.2
MANUAL
Economy/
Setback
Mode
Radiant
by PSG
