Schedule; Power Outage; Troubleshooting; Technical Specifications - Honeywell RLV450 User Manual

Schedule

The schedule consists of 4 periods per day which represents a typi-
cal weekday. You can program the thermostat to skip the periods that
do not apply to your situation. For example, you can skip periods 2
and 3 for the weekend.
Period Description
Wake
Leave
Return
Sleep
The Comfort ( ) temperature is used in periods 1 and 3 and the
Economy ( ) temperature is used in periods 2 and 4. For example,
when the period changes from 1 to 2, the setpoint automatically
changes from Comfort setting ( ) to Economy setting ( ).
You can have a different program for each day of the week; i.e., each
period can start at different time for each day of the week. The
thermostat has been programmed with the following schedule.
MO TU
Period Setting
6:00 6:00
AM AM
8:00 8:00
AM AM
6:00 6:00
PM PM
10:00 10:00
PM PM
To modify the schedule:
Press Pgm to access the programming mode. Period 1 is
selected.
Press Day to select the day to program (hold for 3 seconds to
select the entire week).
Press Hour and Min to set the start time of the selected period,
or press Clear if you want to skip the period (--:-- is displayed).
Press Pgm to select another period, or press Day to select
another day. Then repeat step 3.
Press Mode to exit the programming mode.
NOTE: If no button is pressed for 60 seconds, the thermostat will
automatically exit the programming mode.

Power Outage

During a power outage, LP (Low Power) appears for the first two min-
utes. Then the screen becomes blank. The settings are stored in
memory. However, if the power failure exceeds 4 hours, the thermo-
stat's clock must be re-adjusted and, if you are using the automatic
Daylight Savings Time changeover function, it must be re-enabled.
When power returns, the thermostat will return to the mode of opera-
tion active prior to the power failure.
RLV450
Setting
WE TH FR SA
6:00 6:00 6:00 6:00
AM AM AM AM
8:00 8:00 8:00
--:--
AM AM AM
6:00 6:00 6:00
--:--
PM PM PM
10:00 10:00 10:00 10:00
PM PM PM PM
7.

Troubleshooting

PROBLEM
Thermostat is hot.
LO is displayed.
HI is displayed.
Wrong temperature is
displayed.
Wrong time is displayed.
Temperature does not
change according to the
programmed schedule.
LP appears on the
SU
screen or the screen is
6:00 blank despite there is no
AM
power outage.
--:--
Display looks faded
when heating is acti-
--:--
vated
The settings cannot be
10:00
changed.
PM

Technical Specifications

Power: 120/240 VAC, 60 Hz
Minimum load: 2 A (resistive only)
Maximum load: 16.7 A (resistive only)
Display range: 32°F to 140°F (0°C to 60.0°C)
Display resolution: 1°F (0.5°C)
Setpoint range: 40°F to 86°F (5.0°C to 30.0°C)
Setpoint interval: 1°F (0.5°C)
8. Storage: -4°F to 120°F (-20°C to 50°C)
Approval: c UL us
SOLUTIONS
This condition is normal. Under normal
operation, the thermostat housing can
reach a temperature between 95°F (35°C)
and 104°F (40°C).
The measured temperature is below the
display range. Heating is activated.
The measured temperature is above the
display range.
The thermostat is exposed to air draft.
Eliminate the draft.
The sticker on the thermostat's screen has
not been removed.
The thermostat was without power for
more than 4 hours.
Check that the thermostat is in Automatic
mode. Check the schedule and clock set-
tings.
The thermal circuit breaker in the heater is
opened. This can happen if the heater is
obstructed by furniture or curtain and has
overheated, or if the thermal circuit breaker
is defective.
The heating system is less than the
required minimum load. This thermostat
cannot be used below that rating.
The settings are locked (see section 3).
250 W @ 120 VAC
500 W @ 240 VAC
2000 W @ 120 VAC
4000 W @ 240 VAC
69-2201ES-03
9.
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