Secure SRT323 Mode d'emploi

SRT323

User and Installation Instructions

Electronic Room Thermostat & Temperature

Sensor (Tx) - Z-Wave

The SRT323 is a battery powered electronic thermostat

that opens or closes a relay to control central heating. It

provides optimum comfort with precise control of

energy used to heat the home. It uses interoperable RF

mesh networking technology to provide a means of

remotely controlling the demand temperature and to

report back the relay state.

The SRT323 will only operate when 2 x AAA batteries

have been fitted.

This document provides information specific to the Z-

wave technology implemented on SRT323, to ensure

interoperability with third party devices.

The SRT323 has been developed to control central

heating systems where the demand temperature can

be set locally or remotely by a third party device. The

SRT323 also has the capability to act as a temperature

sensor.

The Secure SRT323 thermostat uses the latest control

technology to provide extremely accurate temperature

control which will help to keep your energy usage as

low as possible without affecting your comfort levels. In

fact comfort levels may well be improved as the control

accuracy should ensure that the room does not

‘overheat’ before switching off.

The display will show the

required temperature

setting and can be

adjusted in increments of

1°C.

To adjust the required

temperature setting, turn

the dial anticlockwise to

decrease it and clockwise

to increase it.

USER INSTRUCTIONS

The thermostat may be operated as an

ordinary wired thermostat with no radio

connection necessary. In this condition no

radio wave symbol is displayed.

In the following description, it is assumed

that the thermostat has been incorporated

into a Z-Wave system.

When the thermostat is in the ‘call for heat’

condition a flame symbol will appear in the

display.

Pressing the temperature setting dial will

allow the user to check the current actual

measured room temperature which will be

displayed for approximately 7 seconds

before returning to the set temperature.

The aerial symbol complete with radio

wave symbols in the display of the

SRT323 thermostat indicates that it is

wirelessly communicating with the rest of

the system.

If the SRT323 is connected to a wider wireless system,

a flashing radio wave would indicate a loss of

communication. This may be temporary and can often

be restored by turning the thermostat dial and

increasing or decreasing the temperature to make the

thermostat send a temperature update to a controller.

If this has no effect please see Wireless System Setup

instructions on page 9.

Battery Replacement

The SRT323 runs on 2 x type AAA (alkaline) non

rechargeable batteries and is designed to give a battery

life of approximately two years – under normal usage

conditions.

Battery should

be changed

immediately

Low battery symbol

appears first when

the batteries are

nearing the end of

their life.

When the batteries are

nearing the end of their life

a low battery symbol will

appear in the display and

the batteries should be

changed within a few days.

If the batteries are not changed at this point eventually a

‘LO’ battery message flashes intermittently in the

display and if this happens the batteries should be

changed immediately.

To change the batteries it is necessary to remove the

thermostat from the wall. To do this, first undo the two

captive screws at the base of the thermostat and swing

the thermostat up and away from the wall plate.

Please dispose of old batteries

responsibly

Remove the old batteries and replace

them with two new AAA size alkaline

batteries ensuring that they are fitted

correctly as indicated by the terminal

markings in the battery compartments.

Once the batteries are fitted, re-fit the thermostat to the

wall plate by engaging with the lugs at the top of the wall

plate and push the thermostat into position. Locate it

over the captive screws at the base of the wall plate and

tighten so that the thermostat is locked into position.

Check the temperature setting is correct and adjust if

necessary.

DIL switch settings

On the rear of the unit in the center there are DIL switches that control

TPI and installation mode as described below

TPI temperature control software

Thermostats, using TPI (Time Proportional Integral) control algorithms,

will reduce the temperature swing that normally occurs when using

traditional bellows or thermally operated thermostats. As a

consequence, a TPI regulating thermostat will maintain the comfort

level far more efficiently than any traditional thermostat.

When used with a condensing boiler, the TPI thermostat will help to

save energy as the control algorithm allows the boiler to operate in

condensing mode more consistently compared to older types of

thermostat.

ŸDIL switch numbers 2 and 3 should be set as

diagram opposite.

ŸFor Gas boilers set the TPI setting to 6 cycles per

hour. (Default setting)

ŸFor Oil boilers set the TPI setting to 3 cycles per

hour.

ŸFor Electric heating set the TPI setting to 12 cycles

per hour. Switch positions for

different TPI settings.

Installation Mode

Set DIL switch 1 to 'ON' to enter installation mode

To exit installation mode change DIL switch 1 to 'OFF'

INSTALLER INSTRUCTIONS

Wireless System Setup

Navigating the setup menu

Please refer to the 3rd party manufacturers instructions of

the Z-Wave controller or gateway that will be used in

conjunction with the SRT323 to determine how to add the

SRT323 to that controller/gateway.

Set DIL switch 1 to ’ON’ position on the back of the unit,

scroll through the function menu by rotating the dial. To

select the required function press the dial. On selecting a

function the character will start flashing while waiting for a

response from the 3rd party device, a successful response

will display a P after the character and a failure will be

displayed with an F.

If no response has been received from a 3rd party unit

within the time-out period, the SRT323 will report a failure.

Mode

Indication Z-Wave Function

Transmit Node Information Frame (NIF)

Learn Mode - use this command for: 1, 3

Include to or exclude from a controller (see page 11)

Receive Period Enabled (Listening)

This function will keep the unit awake for 60sec to receive

commands, no pass or fail response will be provided

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