Salus ERT50 User manual

Instruction Manual

Model No

ERT50

Digital Room Thermostat

for Underoor

Heating Applications

ERT50 INSTRUCTION MANUAL

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.

Please leave these instructions with the end user

where they should be kept in a safe place for future

reference.

ERT50 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 ERT50 from Salus Controls is a stylish and accurate

digital room thermostat that is tted with a large easy

to read Liquid Crystal Display (LCD). The ERT50 benets

from simple one-touch operation, and this thermostat

has been specically designed to be used with underoor

heating systems. A back light and frost function adds to

the features of the ERT50.

Features

•Valve Protection Function (VPF)

•Night Setback (NSB) capability

•Solid State Relay output

•Large, easy to read dot matrix LCD with orange display

•Stylish casing

•User friendly

•Frost protection

•Reset button

INSTALLATION

Please read the important safety information at the start

of this manual before you begin to install the device.

The ideal position to locate the ERT50 digital room

thermostat is about 1.5m above oor level. It should

be mounted in a location where the thermostat is easily

accessible, reasonably lit and free from extremes of

temperature. The electrical connections to the ERT50 are

made to the internal terminal strip. Connection details

are shown below - no Earth connection is required for the

correct and safe operation of the thermostat as the device

is double insulated.

Terminal Connections

Terminal Description Terminal Block

N Mains Neutral

Switched Output

L Mains Live

Temperature setback

(110V AC input)

After installing the ERT50 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 110V 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.

• All wiring connections should be securely made,

and be rmly terminated within each of the terminal

screw clamps.

ERT50 INSTRUCTION MANUAL

110V

60Hz

ERT50 INSTRUCTION MANUAL 5

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 qualied Electrician or other competent person. If you

are not sure how to install this programmable thermostat consult

either with a qualied electrician, heating engineer or your

boiler / heating system supplier for advice on how to continue.

Do not remove or refit the ERT50 wiring without the

mains supply to the system being isolated.

SETTING MODES

When the ERT50 is rst powered up, the Start Up Display

will be shown.

Basic Settings

Many of the ERT50 conguration and operating settings

can be changed here. Press any key to turn on the

backlight, press CANCEL key, press and hold the SELECT

and CANCEL keys together to enter program setting press

+ or - key to “Basic Setting”, and press SELECT.

To change any of the basic settings, press the SELECT this

will access the Program/Basic settings menu.

Use the PLUS (+) or MINUS (-) keys to choose the item you

want to change and press the SELECT key to change to the

setting menu for that item. Pressing the CANCEL key will

exit from this menu and return you to the previous menu.

ERT50 INSTRUCTION MANUAL

DATE AND TIME:

Press the PLUS or MINUS key to change the day setting,

then SELECT to save your choice. Do exactly the same for

the month and year. You can then choose whether to use

a 12 or 24 hour time display (the default is 24 hour).

The time is set in the same way as the date – use the

PLUS or MINUS keys to change the setting, and save

by pressing SELECT.

The last menu item is Daylight Saving – by default this is

turned on. Change the setting using the PLUS or MINUS keys,

then press the SELECT key to save the settings and return to

the Program/Basic settings menu.

LANGUAGE:

The ERT50 is programmed to operate in eight different

languages (the default is English). If you wish to change

the language used, select Language from the Program/

Basic Settings screen.

Select your choice of language with the PLUS or MINUS

keys, then press SELECT to save your choice and return to

the Program/Basic Settings screen.

Pressing CANCEL will return to the previous screen

without saving any changes. You can also access the

Language menu by pressing the MENU and SELECT keys

and the RESET button together.

MAINTENANCE:

The Maintenance menu allows you to view operating

times for the heating system. The ERT50 will record

operating time up to a maximum of 99,999 hours.

ERT50 INSTRUCTION MANUAL 7

ERT50 INSTRUCTION MANUAL

Select the Read Operating Time entry to see a summary of

the system operating times.

This screen will show the date the operating times were last

reset, total operating time and total actuator open time.

The timers can be reset by selecting the Reset Operating

Time item.

Select Yes and then press the SELECT key to reset the timers

to 0.

Press the CANCEL key twice to return to the Program menu.

CONTROL SETTINGS

The Control menu allows changes to the Temperature

Span, Communications, Frost Protection, Output, Valve

Protection and Temperature Offset settings.

To access this menu, select the Control item from the

Program menu.

Temperature Span:

The rst setting that can be changed is Temperature Span.

The default setting is 0.5 °C, but this can be changed to

1.0 °C. Press the SELECT key to save your changes.

COMMUNICATIONS:

The Communicate menu item has several setting options,

some of which are only relevant when there is more than

one thermostat in the installation and they are congured

in a Master/Slave relationship.

The rst option allows you to turn Night Setback on or

off. The Setback feature will only operate if a connection

is made to the Setback terminal .

ERT50 INSTRUCTION MANUAL 9

ERT50 INSTRUCTION MANUAL

The terminal is sampled every second, and if the terminal

state is HIGH (above 175V AC) the Crescent indicator

will be shown on the display and the Setback temperature

will be applied.

You can only change the other Communications options

if NSB is set to OFF – if NSB is turned ON the ERT50 will be

set as the Master unit and will only send a signal to any

Slave units, not receive a signal from them.

With NSB set to Off, you can then change the other

communications options by using the PLUS and MINUS

keys. The available options are COM Off, COM 4 ºC and

COM 2 ºC. If COM Off is selected, no setback signal will

be sent to the Slave thermostat. With COM 4 ºC or COM

2 ºC selected, the slave thermostat temperature will

be reduced or increased by 4 ºC or 2 ºC, depending on

whether the system is in Heating or Cooling mode.

After choosing your option, press the SELECT key to save

your selection and exit from the menu.

Other manuals for ERT50

Table of contents

Popular Thermostat manuals by other brands

EWELLY

EWELLY EW-181 manual

Prolon

Prolon T1100 Hardware guide

Computherm

Computherm Q20 operating instructions

Heatmiser

Heatmiser neoStat user manual

Aube Technologies

Aube Technologies TH111GFCI-NP 240 VCA user manual

Mars

Mars HEAT CONTROLLER IR Wireless Thermostat user manual

Saswell

Saswell SAS920XWHB-7-S-RF User manual and warranty card

Aircalo

Aircalo TFP1-ET85P2 operating manual

Honeywell

Honeywell CM721 user manual

Carrier

Carrier DEBONAIR 33CS Installation and operating instructions

Lennox

Lennox iHarmony Zone Thermostat Installation and setup guide

Gemtech

Gemtech GT7000 Operation

Rollei

Rollei Smartes 45000 manual

Sinope

Sinope TH1300RF user guide

Honeywell

Honeywell RLV4305 owner's guide

Honeywell

Honeywell Prestige 2.0 THX9421 manual

NuTone

NuTone NTBZ48 Installation & operation guide

Stelpro

Stelpro MAESTRO ASMT402AD user guide