RLV450 69-2201EF-03 2009-08-04 1/4
* LP appears only for the first two minutes when the thermostat is without power. This
can occur during a power outage or when the thermal protection device inside the base-
board heater is opened.
This programmable thermostat can be used to control an electric
heating system such as an electric baseboard heater, a radiant ceil-
ing, a radiant floor, a convector or a fan-forced heater.
The thermostat cannot be used with:
• a resistive load over 16.7 A
• a resistive load under 2 A
• a system driven by a contactor or relay (inductive load)
• a central heating system
SUPPLIED PARTS:
• One (1) thermostat
• Two (2) 6-32 screws
• Two (2) solderless connectors
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN
POWER PANEL TO AVOID ELECTRICAL SHOCK. THE INSTAL-
LATION MUST BE PERFORMED BY AN ELECTRICIAN.
All cables and connections must conform to the local electrical
code.
Special CO/ALR solderless connectors must be used when con-
necting with aluminum conductors.
Install the thermostat onto an electrical box.
Install the thermostat about 1.5 m (5 feet) high, on an inside wall
facing the heater.
Avoid locations where there are air drafts (such as the top of a
staircase or an air outlet), dead air spots (such as behind a
door), or direct sunlight.
Do not install the thermostat on a wall that conceals chimney or
stove pipes.
The thermostat wires are not polarized; either wire can be con-
nected to the load or to the power supply.
NOTE: Always keep the thermostat's vents clean and unobstructed.

n

oConnect the thermostat wires to the line wires and to the load
wires using solderless connectors for copper wires.
pPush any excess wire back into the electrical box.
NOTE: If necessary, before re-installing the front component, config-
ure the thermostat (see section 3).
qReturn power to heating system.
nDescription 1.
oInstallation 2.
Select the mode
of operation
Set the time
Time and day
Temperature
Indicates the current
mode of operation
Skip a period
Program the schedule Temperature
preset icon
Temperature
adjustment
buttons
Temperature
preset buttons
Indicates the
heating power Indicates the current
period (appears in
automatic mode only)
Indicates that the
temperature setpoint
is displayed
Set the day
Indicates that the
thermostat is configured
for a fan-forced heater
Indicates that the ther-
mostat is without power *
Indicates that the
settings are locked
2-wire installation
4-wire installation
RLV450

User Guide

Programmable Thermostat

400-106-021-D_69-2201EF-03 (RLV450 Honeywell TH106B) ENG.fm Page 1 Tuesday, August 4, 2009 4:33 PM