Salus RT500 User manual
Instruction Manual
Model No RT500
Digital Room Thermostat
2
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RT500 INSTRUCTION MANUAL
2
PRODUCT COMPLIANCE
This product complies with the essential requirements of the
following EC Directives:
•Electro-Magnetic Compatibility directive 2004/108/EC
•Low Voltage Directive 2006/95/EEC
•EC Marking directive 93/68/EEC
SAFETY INFORMATION
These instructions are applicable to the Salus Controls model stated
on the front cover of this manual only, and must not be used with
any other make or model.
These instructions are intended to apply in the United Kingdom
only, and should be followed along with any other statutory
obligations.
This accessory must be fitted by a Competent person, and
installation must comply with the guidance provided in the current
editions of BS7671 (IEE Wiring Regulations) and Part ‘P’ of the
Building Regulations. Failure to comply with the requirements of
these publications could lead to prosecution.
Always isolate the AC Mains supply before opening or
removing the unit from the wall or wall box.
When fitting batteries don’t mix old and new batteries
together. Do not use rechargable batteries.
Please leave these instructions with the end user where they should
be kept in a safe place for future reference.
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RT500 INSTRUCTION MANUAL 3
INTRODUCTION
A programmable thermostat is a device that combines the functions of both
a room thermostat and heating controller into a single unit. The
programmable thermostat is used to switch the heating system in your
home on and off as needed. It works by controlling the temperature
according to a series of programmed settings that take effect at different
times of the day.
The RT500 from Salus Controls is
a stylish and accurate 5/2 or 7
day programmable electronic
thermostat with a large, easy to
read Liquid Crystal Display
(LCD). This programmable
thermostat has been specifically
designed to be used Volt Free.
Features
•Volt free contacts
•5/2 or 7 day programming flexibility
•Built-in start up programming for quick installation
•Frost protection
•Large, easy to read LCD with blue backlight
•Burner on symbol
•User friendly
•Stylish casing
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INSTALLATION
Please read the important safety information at the start of this manual
before you begin to install the thermostat.
The ideal position to locate the RT500 thermostat is about 1.5m above floor
level, in a location where the thermostat is accessible, reasonably lit and
free from extremes of temperature and draughts. Do not mount the
thermostat on an outside wall, above a radiator or in a location where it
may be subjected to direct sunlight.
The electrical connections to the RT500 are made to the supplied industry
standard backplate. This simplifies installation, as no connections are made
to the controller itself. Connection details are shown below - no Earth
connection is required for the correct and safe operation of the RT500, but
a parking terminal is provided to connect an Earth wire if one is present.
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Backplate Connections
Terminal Description Backplate
L Mains Live
SL Switched Live
(Normally Open Contact)
Earth Parking (no electrical
connection)
After installing the backplate in a suitable location, wiring connections can be
made as shown above. The following criteria apply to the installation:
•
The incoming AC mains supply should be 230V AC and fused at 5 amps.
•
Optimum cable size for installation is 1.5 mm2; wiring colours should be
in accordance with the current requirements of the IEE Wiring Regulations.
•
Cable entry should be from the rear of the backplate.
•
All wiring connections should be securely made, and be firmly
gripped beneath the square brass washer on each terminal.
The RT500 requires two ‘AA’ alkaline batteries to function correctly. Ensure that
the batteries are inserted correctly, paying careful attention to the polarity
markings on the battery and next to the battery holders.
Do not restore the mains supply to the system until all associated items are fully
installed.
NOTE: All electrical installation work should be carried out by a suitably
qualified Electrician or other competent person. If you are not sure how to
install this thermostat consult either with a qualified electrician, heating
engineer or your boiler / heating system supplier for advice on how to continue.
Do not remove or refit the RT500 onto the backplate without
the mains supply to the system being isolated.
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JUMPER SETTINGS
Changes to the jumper settings should only be made by the Engineer
carrying out the installation or other qualified person.
The installer should select the jumper position required if changes need to
be made to the factory default settings. These jumpers are found on the
rear of the thermostat.
Jumper Function Default
Temperature Movable jumper for ± 0.5 ºC span
Span ± 0.5 ºC or ± 1.0 ºC span.
Program Type Movable jumper for 5-2
5-2 or 7 individual days
programming.
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AFTER INSTALLATION
After completing installation and powering up the RT500 for the first time
the thermostat will behave in the following way:
All the indicators on the display and the backlight will be turned on for two
seconds. After two seconds, the RT500 will then operate in Normal mode
(Normal mode is when the thermostat is displaying the room temperature).
The following table shows the settings of the RT500 digital thermostat after
Power on:
Function Status After Reset or Power On
Operation Mode Normal mode
Room Temperature 22.0 °C, updated within 5 seconds
°C indicator On
Clock 12:00
AM/PM indicator AM
Day of Week indicator M
Programme Default factory setting
Set Point Temperature Default factory setting
Programme Number indicator 1
SET indicator Off
PROG indicator Off
Frost Protection indicator Off
Heat indicator Off
Low-Battery Warning indicator Off, updated within 5 seconds
Output Relay Off
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After Power on, the thermostat will operate in Normal mode
•The set point temperature is reset to the default setting
•The room temperature display is updated within 5 seconds
•The control process starts
•The programme number is updated to indicate the running program
If the Reset Button is pressed, the RT500 will behave in the same way as
described above, except that any previously saved user settings stored in
the internal memory will be deleted and overwritten with the default
settings, and all control settings will be returned to default values.
USER INTERFACE AND CONTROLS
The status and operation of the RT500 is clearly shown on the large
backlit Liquid Crystal Display (LCD).
This display allows the user a clear indication of the current room
temperature, and the status of the heating system.
There are few user controls for the RT500, making this thermostat
very easy to operate. These controls are shown below, along with a
description of each of their functions.
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USER CONTROL FUNCTION SUMMARY
Key / Operation Symbol Functions
UP key Increases the selected setting
DOWN key Decreases the selected setting
BACKLIGHT / Manually turns on the LCD backlight
FROST key for 5 seconds, or activates /
deactivates Frost Protection
SELECT key Selects a clock or programme setting
SET key Sets a clock or programme setting
RESET button Resets the programmable thermostat
to default (original factory) settings
OPERATION
The RT500 is configured and adjusted
by the use of a minimal number of user
controls, and an intuitive user interface.
The backlit Liquid Crystal Display (LCD)
gives a highly visible, easily readable
indication of the programmable
thermostat status.
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SETTING THE TIME
Press and hold SET and SELECT when the RT500 is in Normal mode for three
seconds to enter the Clock setting mode. Release both keys and the display
will look like the image below:
The Time and Day are displayed along with a SET indicator, with all other
indicators cleared from the display. The hour part of the time is flashing to
indicate that it is the currently selected item and is ready to be adjusted.
•Press the UP or DOWN keys to increase or decrease the ‘hour’ setting –
the selected item will stop flashing while a key is pressed, and will resume
flashing when you release the key.
•Press the SELECT key to select the ‘minutes’ section of the time. Set the
minutes in the same way as the hour by using the UP and DOWN keys.
•Press SELECT again to select the Day, and again change the setting with
the UP and DOWN keys.
•Press the SET key to confirm the new time and day settings. This will store
the changes and return the RT500 to Normal mode.
The RT500 will also return to Normal mode (and save the clock settings)
if no keys are pressed for more than 15 seconds.
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