Honeywell RLV431 Programmable Thermostat User Guide

Honeywell RLV431 Programmable Thermostat

Description

The RLV431 thermostat can be used to control an electric heating system such as a baseboard heater, a radiant floor, a radiant ceiling, a convector, a fan-forced heater, etc.
The thermostat cannot be used with the following:

• a resistive load under 2 A
• a resistive load over 12.5 A
• systems driven by a contactor or a relay (inductive load)
• central heating systems

SUPPLIED PARTS

• One (1) thermostat
• Two (2) 6-32 mounting screws
• Two (2) solderless connectors

NOTE:
To access the programming keypad, remove the cover by placing your fingers to the right edge of the thermostat and pulling it.

Display

Installation

TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER PANEL TO AVOID ELECTRICAL SHOCK.

• All cables and connections must comply with local electrical codes.
• This thermostat has tinned copper wires for line and load connections. Special CO/ALR solderless connectors must be used if these wires will be connected to aluminium conductors.
  Install the thermostat onto an electrical box.
  Install the thermostat about 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 chimneys or stove pipes.
• The thermostat wires are not polarized; either wire can be connected to the load or to the power supply.

1. Connect the thermostat using solderless connectors for copper wires.
   2-wire installation
2. secure the thermostat to the electrical box using the provided screws. Insert the screws through either the right or left pair of mounting holes on the thermostat.
3. If there is a protective film or sticker on the thermostat’s screen, peel it off.
4. Apply power to the heating system.
5. Verify the installation by checking that the heater can be turned on and Off by raising and lowering the setpoint using the Up and Down buttons.
   WARNING: Keep the thermostat’s air vents clean and free from obstructions.

Temperature Display and Setting

The thermostat normally displays the room (measured) temperature.

• To view the set temperature (setpoint), press the Up or Down button once.
• To change the setpoint, press the Up or Down button until the desired setpoint is displayed.

Configuration

The factory settings are indicated inside the gray cells of the following table.

Temperature display	°C	°F
Time display	24 h	12 h
Temperature control	Proportional (15-second cycles)	Conventional (± 0.5°C deadband)

WARNING: The clock loses its setting whenever you change the thermostat’s configuration.

Temperature display
To change the temperature display between °C and °F:

1. Lift the thermostat’s cover.
2. Press and hold the Day button.
3. Insert a pointed object (e.g., paperclip) in the reset opening.
4. Remove it when the thermostat’s screen becomes blank.
5. Wait one second and release the Day button.

Time display

1. To switch between the 12-hour format and the 24-hour format:
2. Lift the thermostat’s cover.
3. Press and hold the Hour button.
4. Insert a pointed object (e.g., paperclip) in the reset opening.
5. Remove it when the thermostat’s screen becomes blank.
6. Wait one second and release the Hour button.

Control type

Use proportional control (default setting) in most cases as it provides better temperature control. However, you must use conventional control if you have a fan-forced heater.
The fan is displayed when conventional control is selected. To switch between the two types of control:

1. Lift the thermostat’s cover.
2. Press and hold the Min button.
3. Insert a pointed object (e.g., paperclip) in the reset opening.
4. Remove it when the thermostat’s screen becomes blank.
5. Wait one second and release the Min button.

Clock and Day Setting

The clock must be set when Time flashes on the screen.

1. Lift the thermostat’s cover.
2. Press the Day button to set the day.
3. Use the Hour and Min buttons to set the clock.
4. Press the Ret button to exit.

Modes of Operation

The thermostat has three modes of operation:

Automatic (programmable) mode
To use the Automatic mode, press the Mode button until Auto is selected (outlined) on the screen. The current period number will appear.
In this mode, the thermostat automatically adjusts its temperature setpoint according to the period of the day(wake up, leave for work, return home and sleep).

You can program up to 4 periods in a day. You can set up 2 different programs: one for the weekdays (Monday to Friday) and another one for the weekend (Saturday and Sunday).
The thermostat is pre-programmed with the following schedule:

Period		Monday to Friday		Saturday & Sunday
		Start Time	Temperature	Start Time	Temperature
1	Wake	6:00	21°C (70°F)	6:00	21°C (70°F)
2	Leave	8:00	16°C (62°F)	—	—
3	Return	18:00	21°C (70°F)	—	—
4	Sleep	22:00	16°C (62°F)	22:00	16°C (62°F)

To temporarily override the current setpoint, set the desired temperature using the Up or Down button. The new setpoint will be used until the beginning of the next period.

To modify the schedule:

1. Press the Mode button until Auto is selected.
2. Press the Pgm button.
   Each time you press the PGM button, the thermostat displays one of the periods of the schedule in the following order (from left to right):

   Weekdays				Weekend
   MO TU WE TH FR				SA SU
   1	2	3	4	1	2	3	4

3. Set the start time for the displayed period using the Hour and Min buttons.
   NOTE: To deactivate the period, press the Mode button. Instead of displaying the start time of the period, the thermostat will display – During operation, the thermostat will skip over that period.
4. Set the temperature for the period using the Up or Down button.
5. Repeat steps 2 to 4 for the remaining periods.
6. Press the Ret button to return the thermostat to normal operation.

Manual (hold) mode
To use the Manual mode, press the Mode button until Man is selected (outlined) on the screen. Set the desired temperature using the Up or Down button. In this mode, any modification to the temperature setpoint must be done manually.

Economy mode
To use the Economy mode, press the Mode button until Econo is selected (outlined) on the screen. This mode is ideal for weekend residences as it can be used as follows: The temperature is kept at an economy level during most of your absence and is raised to a comfortable level by your usual arrival time. If you do not show up, the temperature will return to the economic level until next weekend.

The economy mode has two periods which should be set as follows:

Period	Temperature Setting	Start Time Setting
1	Set to a comfortable level.	Set the day and time that you want the temperature to start rising so that a comfortable level is attained by the time you arrive.
2	Set to an economy level.	Set the day and time that you want the temperature to start dropping to an economy level if you do not show up.

The economy mode should be used as follows:

• Place the thermostat in Economy mode during your absence.
  When you arrive, place the thermostat in Automatic mode or in Manual mode before the temperature drops back to the economy level.
• When you leave, switch the thermostat back to Economy mode.

To program the two periods of the economy mode:

1. Press the Mode button until Econo is selected.
2. Press the Pgm button. The first period (1) is displayed.
3. Set the start day for the displayed period using the Day button.
4. Set the start time using the Hour and Min buttons.
5. Set the temperature for the period using the Up or Down button.
6. Press the Pgm button to select the next program (2).
7. Repeat steps 2 to 4 to set the day, time and temperature.
8. Press the Ret button to return the thermostat to normal operation.

Thermostat Reset

WARNING: When the thermostat is reset, all parameters (clock, configuration and schedules) return to their default settings.

1. Lift the thermostat’s cover.
2. Press and hold the Pgm button.
3. Insert a pointed object (e.g., paperclip) in the reset opening.
   Remove it when the thermostat’s screen becomes blank.
4. Wait one second and release the Pgm button.

Power Outage

During a power outage, the thermostat display remains lit for approximately the next 15 minutes during which the LP (low power) indicator appears. The settings are stored in memory. However, if the power failure exceeds 5 hours, only the thermostat’s clock must be re-adjusted. When power returns, the thermostat returns to the mode of operation preceding the power outage.

Troubleshooting

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).
	Correct if any the following conditions applies:
Wrong temperature is displayed.	•           The thermostat is exposed to an 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.
Wrong time is dis- played.	The thermostat was without power for more than 5 hours.
	•                     Ensure the thermostat is in Auto- matic mode.
Temperature does not change according to the programmed schedule.	•       Check the clock and the schedule. If the thermostat is configured for 12-hour format, ensure that PM appears on the screen when after- noon times are displayed.
LP reappears on the screen and disappears 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 over- heated, or if the heater’s thermal pro- tection device is too sensitive.
Display looks faded when heating is acti- vated.	The load of the heating system is prob- ably less than the required minimum. This thermostat cannot be used for loads below that rating.

Specifications

• Supply: 120/240 VAC, 60 Hz
• Power consumption (off): 960 mW
• Minimum load: 2 A (resistive onlv)
  500 W @ 240 VAC
  250 W @ 120 VAC
• Maximum load: 12.5 A (resistive only)
  3000 W @ 240 VAC
  1500 W @ 120 VAC
• Display range: 0°C to 70°C (32°F to 99°F)
• Setpoint range: 5°C to 27°C (40°F to 80°F)
• Resolution: 1°C (1°F)
• Storage temperature: -20°C to 50°C (-4°F to 120°F)
• Accuracy – proportional: 0,15°C (0,27°F)
• conventional: ≤ 0,5°C (0,9°F)
• Dimensions (H x W x D): 117 x 125 x 33 mm (4.6 x 4.9 x 1.3 inches)
• Approval: CSA / UL

Warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and ser- vice, for one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option). If the product is defective,

• return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it, or
• call Honeywell Customer Care at 1-800-468-1502. Customer Care will determine whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr N, Golden Valley, MN 55422, or whether a replacement product can be sent to you.

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage that occurred while the product was in the possession of a consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write Hon- eywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V429.
Customer Assistance
If you have any questions about the operation of your thermostat, please go to http://yourhome.honeywell.com, or call Honeywell
Customer Care is toll-free at 1-800-468-1502.
ENERGY STAR
As an ENERGY STAR® partner, Honeywell has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

Reference Link

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Honeywell RLV431 Programmable Thermostat User Guide

Honeywell RLV431 Programmable Thermostat User Guide