Secure C1727 User manual

BGX701-366-R01
Simple controls solution guide
PTD, C1727 and H3747
Copyright © 2020-2023, SIHPL. All rights reserved. E&OE.
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Contents
1Before you begin 4
2Know your PTD (Programmable Thermostat display) 5
2.1 The Home Screen 5
2.2 Symbols you may see on the PTD 6
2.3 Know the buttons and their functions 6
2.4 Menu navigation- General instructions 7
2.5 Activating the display backlight 8
3Understanding the menus and their functions 8
3.1 Change Zone menu 8
3.1.1 Adjusting the zone temperature 9
3.2 Boost menu 9
3.2.1 Applying Boost 9
3.3 Hold menu 9
Applying Hold 9
3.4 Schedule menu 10
3.4.1 Creating schedules 11
3.4.2 Overriding a schedule 16
3.5 Summer mode 16
3.5.1 Applying the summer mode. 16
3.6 Warning 16
3.6.1 Understanding Warning messages 16
4Settings 17
4.1 Advance settings 19
4.2 Installer settings 19
4.3 System modes 19
4.4 Adjusting the date and time settings 20
4.5 Adding another zone (PTD, Sensor or Wired device) 20
4.6 Factory Reset 21

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5Installing the receiver (C1727/H3747) 22
5.1 Installing the C1727 23
5.1.1 Label your wires 23
5.1.2 Drill the holes and secure the mounting plate 24
5.1.3 In case of surface wiring (optional) 25
5.1.4 Make connections 25
5.2 Installing the H3747 28
5.2.1 In case of surface wiring (optional) 29
5.2.2 Label your wires 29
5.2.3 Making the connections 30
6Upgrading from Channel Plus 31
6.1 Commissioning the PTD 31
6.1.1 Establish communication with the receiver 31
6.1.2 Communication established 32
7Installing the PTD 32
7.1.1 Mark out the mounting position 33
7.1.2 Fit the PTD 33
7.2 Inserting the Optional Wi-Fi card 34
7.3 Product technical specifications 35
7.3.1 Programmable Thermostat Display PTD 35
7.3.2 Receivers C127 and H3747 36
8Appendices 36
8.1 Controlling PTD using the mobile app (Multiple users) 36
8.2 Controlling an existing wired thermostat or other wired device using the PTD 37
9FAQs 37
9.1 Setup and Commissioning 37
9.2 Operation and use 38

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1 Before you begin
This quick guide is supplemental to the full user and installer guides which can be
downloaded by clicking the link (in the left column) or scanning the relevant QR codes.
C1727
H3747
PTD
Secure
Controls
mobile
app
(Android
users)
Secure
Controls
mobile app
(Apple users)
Important- In addition to the PTD interface, you can also program and control your
system using the Secure Controls mobile app (See download link and QR code above).
To control the system locally using the mobile app, Bluetooth must be enabled in your
phone settings. The app communicates with the receiver (either C1727 or H3747, which is
pre-paired with a PTD) via Bluetooth. To control the system remotely using the mobile app
the receiver must be fitted with a Wi-Fi adapter.

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2 Know your PTD (Programmable Thermostat display)
The Secure PTD is a battery operated, wireless thermostat which enables independent
control of your heating and hot water. It can control up to 4 zones (3 heating + 1 hot water
or 4 heating). Designed for comfort and convenience, it comes with an intuitive interface
and powerful features such as single click Home-Away, Boost, Scheduling, Optimum
start/stop and Service interval etc. Programming it is easy and quick and you can create
separate schedules for each zone for a perfect heating experience. With a guaranteed 12-
year battery life, it is an ideal replacement for wired thermostats with limited functionality.
The main features of the PTD include:
•Real time status of your hot water and heating zones
•One-click Home-Away function with convenient mode settings
•Easy and intuitive 7-day programming for hot water and heating control with
facility to copy and edit schedules
•Ease of adding or replacing heating control devices
•Instant alerts about low battery in associated zone sensor, communication
errors and service reminders
•Provision for boosting hot water or holding the desired temperature
2.1 The Home Screen
Once your PTD is installed and commissioned, it displays the home screen. This is the
central space from where you can navigate to different menus (according to which the
display changes). An illustration is provided below:

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2.2 Symbols you may see on the PTD
Indicates that your
boiler is On
The PTD is connected by a radio signal
with the receiver. This icon indicates the
communication signal strength
Indicates that Hot
water is On
Indicates a warning notification
Indicates low battery
Indicates that the button lock has been
activated to avoid unintentional setting
changes
2.3 Know the buttons and their functions
Button
Function
Rear button
Press
To wake up the device before initial setup.
Note:
The device is shipped in deep sleep mode to save battery.
Menu/back button
This is a single press button with dual functions. Press it :
•To enter the main menu
•To return back to a previous menu from within a
submenu/selection
Home-Away button
This is a single press button with dual functions. Press it:
•To switch between modes (Home/Away)
•To enter a setting/option and to confirm a selection

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+button
Press
•To increase the target temperature, date and time
•To navigate between different menus/menu items in the
forward direction
Long Press
Fast forward the selection of temperature, dates and time in
forward direction
-button
Press
•To decrease the target temperature, date and time
•To navigate between different menus/menu items in the
backward direction
Long Press
Fast forward the selection of temperature, dates and time in the
backward direction
2.4 Menu navigation- General instructions
Press the Menu/back button at the top centre
•To enter the main menu
•To return back to a previous menu
from within a submenu/selection
Press the Home-Away button at the
bottom centre to
•To switch between modes
(Home/Away)
•To enter a setting/option and
to confirm a selection

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As required, press the plus or minus buttons, until the required menu, selection,
temperature, date or time appears.
2.5 Activating the display backlight
The PTD display backlit will illuminate for 4-5 seconds whenever any button is pressed. If
no further buttons are pressed, it will automatically turn off in order to save battery life. To
make the display backlit come on again, press any button on the PTD.
3 Understanding the menus and their functions
The PTD has various menus that allow you to control and monitor your heating in an
efficient manner. Additional sub menus are available within each menu that help you
specify useful settings. The following menus are available:
Menu
Task
Change Zone menu
Adjusting the zone temperature
Boost menu
Applying Boost
Hold menu
Applying Hold
Schedule menu
Creating schedules
Summer mode
Applying the summer mode
Warning
Understanding Warning messages
Advance settings
Advance settings (Viewing and applying)
Installer settings
Installer settings (Viewing and applying)

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3.1 Change Zone menu
The Change Zone menu lets you:
•Switch between different zone views (if you have more than one)
•Temporarily adjust the target temperature of a zone to suit your current needs.
The temporary override will only last until the next scheduled set point is
reached.
The default view is of the zone in which the PTD has been installed. To apply various
settings to other zones, change the view as required.
3.1.1 Adjusting the zone temperature
To temporarily override a zone schedule, do the following:
•If you have a single zone-combi boiler just use the +/- buttons to alter the target
temperature
•For multi zone systems, press the top menu button and navigate to the Change
zone menu (This is the default menu. If required press +/- until you reach the
menu)
3.2 Boost menu
The Boost menu is used to turn on the hot water for a fixed duration, irrespective of the
hot water scheduled state. This function is only available if a hot water channel is
associated with:
•Zone 1 on a Two- channel receiver
•Zone 3 on a Four-channel receiver
3.2.1 Applying Boost
1. Press the top menu button and navigate to the Boost (if required press +/- until you
reach the menu)
2. Press + or –to select the Boost duration and then confirm. The following options are
available.
•Boost for 1 hour and 2 hours
•Cancel Boost (if Boost is already applied)
3.3 Hold menu
The Hold option enables you to hold the heating at a desired target temperature for a
chosen time duration. (1, 2, 3 or 4 hours or until hold is cancelled). You can also readjust
the target temperature to a new desired value even after hold is applied.

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Applying Hold
To setup the Hold function, do the following:
1. Press the top menu button and navigate to the Hold menu (If required press +/- until
you reach the menu)
2. Press + or –to select the Hold duration and then confirm. The following options are
available.
•Hold for 1 hour, 2 hours, 3 hours and 4 hours
•Hold until Cancel (if Hold is already active)
3.4 Schedule menu
Your system comes with a pre-set schedule for 6 time periods to suit most of your needs
and save energy. (See table below).
Weekday
Period
1
Period
2
Period
3
Period
4
Period
5
Period
6
Monday to
Friday
Time
6:00
AM
8:30
AM
11:30
AM
1:30
PM
5:00
PM
10:00
PM
Target
temperature
20°C
18°C
20°C
18°C
21°C
15°C
Saturday
and
Sunday
Time
7:00
AM
10:00
AM
11:30
AM
1:30
PM
5:00
PM
11:00
PM
Target
Temperature
20°C
19°C
21°C
18°C
21°C
15°C
However, you can make alterations in accordance with your preferences and personal
comfort.
The PTD enables you to create independent schedules for
•Zone heating (Setting the target temperature)
•Hot water heating (Time based On/Off)
•Wired thermostats (Time based On/Off)
Using it you can create:
•A weekly schedule
•Separate schedule for weekdays and weekend
•Independent schedules for each day of the week

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3.4.1 Creating schedules
To create a schedule, do the following:
Press the top menu button and navigate to the Schedule menu (If required
press +/- until you reach the menu) and then confirm.
Press + or –until the required zone is displayed for which to create the
schedule and then confirm.

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Press + or –until the required day is displayed for which to create the
schedule and then confirm.
Press + or –until the required period is displayed and then confirm.
Press + or –until the required time is displayed and then confirm.
Note:
Depending on the pre-configured time format (24 or 12 hrs.), you may have to
select the hour/minute/AM or PM.

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Notes:
•The minimum time interval that can be defined for a period is 10
minutes.
•The last period of the day will cover the remaining time of the day till
the start time of next day (first period).
Press + or –until the required Target temperature is displayed and then
confirm.
Note:
Adjustments can be made in a steps of 0.5 resolution at each step.
Repeat the steps (4 to 6) for remaining periods (Or as necessary)

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Once a day is programmed, this information can be copied and applied to the
remaining (or selected) days of the week.
Select Yes to copy the schedule.
Press +/- to select required or all remaining days for which you want to copy
the schdeule and then confirm.

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If required, you can continue copying the schedule for other days (Repeat day
selection with +/- buttons as necessary)
Note:
After the copy cycle is completed, the Editing cycle is initiated. If required,
you can continue editing the schedule. (Repeat day selection with +/- buttons
as necessary)

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3.4.2 Overriding a schedule
1. If you perform a Boost operation, the running schedule will be overridden for the
duration until Boost persists.
2. If you modify the temperature set point while a schedule is running, the modified
change will persist only until the end of the running schedule period. At the start of
the next period, the settings will switch as scheduled.
3. If the Hold feature is applied, all schedule settings will be either on hold for the
duration specified or permanently stopped until hold is cancelled.
3.5 Summer mode
Switch to this mode if you want your heating to come on only when the temperature drops
below the pre-set frost protection temperature. (Default is 5 degrees but it can be changed
under Settings).
3.5.1 Applying the summer mode.
To apply summer mode, do the following:
1. Press the top menu button and navigate to the Summer mode menu (If required
press +/- until you reach the menu
2. Select the ENABLE SUMM MODE option and then confirm.
Note:
The DISABL SUMM MODE option will appear if Summer mode is already applied.
3.6 Warning
Warnings are important notifications that need your attention. These appear on the
homepage accompanied by a blinking symbol. Details of a certain warning can be
checked under the Warning menu. The description of some warning messages is given
below:
3.6.1 Understanding Warning messages
Warning
Description
SERVICE DUE
Indicates that the PTD service is due. This is a landlord
setting for Housing associations or local authorities only,
who should be contacted. Secure do not set or manage
this feature.
Note:
If the system is not serviced in time, you may not be able to
control your heating or only partial control will be available,
depending on the settings configured by your installer.

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LOW BATTERY
Indicates that the battery of the main PTD is low and the
unit needs to be replaced.
LOW BATTERY- Z (X)
Indicates that the battery of the zone PTD or THS is low.
Notes:
1. If the PTD battery is low, the unit will need
replacing.
2. If the sensor battery is low, replace with 2 X AAA
batteries.
COMMS ERROR
Indicates that the main PTD is unable to establish
communication with the receiver. Either the PTD is too far
away or the system has been reset and the receiver is not
in pair mode. Try moving the affected PTD closer to the
receiver. See FAQs for more information on this.
COMMS ERROR- Z(X)
Indicates that the heating control device in a particular
zone is unable to establish communication with the
receiver. This could be due to the range, so try moving the
affected unit closer to the receiver
4 Settings
This section describes the different settings. The process to navigate to the Settings
menu and apply a setting is the same as described for other menus. The same general
button instructions apply as discussed under section Menu navigation- General
instructions
Set/modify
in PTD
What?
Thermostat/System
behaviour
Away
temperature
The default set point is 11 degree Celsius
and can be modified as required in the
settings menu of the PTD or app
The PTD controls the heating
to operate on the set
temperature, when the room
is unoccupied
Frost
protection
The default set point is 5 degree Celsius
and can be modified as required in the
settings menu of the PTD or app
These settings ensure that
your heating will come on only
if your temperature drops
below the configured set
point.
Heat mode
Economy or Comfort (default)
These settings ensure that
you are always comfortable at
all times, and energy usage is

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optimised in the best possible
way.
Economy mode will remove
all cycling and is
recommended for Heat
Pumps.
Optimum
Start
Enable or disable
The PTD analyses the
temperature rise and fall
pattern and determines how
long it will take for your zone
to heat up to the target
temperature. Accordingly it
turns the heating on a bit
earlier to achieve that
temperature at the scheduled
time.
Optimum
Stop
Enable or disable
The PTD analyses the
temperature rise and fall
pattern and accordingly turns
the heating off a bit earlier
than the scheduled time,
although ensuring that a
comfortable temperature is
always maintained. This effect
may not be noticeable but is a
great measure to save energy
and bring down your fuel
expenses.
Edit
Date/Time
Edit
date
Set the current date by making
adjustments to the date –
Year/Month/Day
Refer section Adjusting the date
and time settings for details.
The PTD will function
according to the set date.
Set
time
format
Set the time format. You have
the option for 12 or 24-hour
clock setting. Refer section
Adjusting the date and time
settings for details
The PTD will function
according to set time.
Add
sensors
This option enables you to attach a new
external temperature sensor with a zone
in the heating system.
Refer section Adding another zone (PTD,
The sensor is added to the
system

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Sensor or Wired device)
Add wired
device
This option enables you to attach a wired
device with a zone in the heating system.
The wired device is added to
the system
4.1 Advance settings
To access the options grouped under this menu, you require the User or Owner PIN. By
default, the PIN is set to 1854. Details are available in the full user guide.
4.2 Installer settings
Most users will not need to use these settings. This section is mostly useful for local
authorities or those involved in managing housing associations. To access the options
grouped under this menu, you require the Installer PIN. Once received, you can change it
according to your preference, using the Change PIN option. If you lose your PIN, contact
the support team at [e-mail]
4.3 System modes
Your PTD has three heating modes: Home, Away and Summer
Mode
Description
Switching/Setting
Home
This is the default mode in which the PTD
follows the heating, hot water and timer
schedules applied by the user. In this
mode, the temperature set point and
boost settings can be changed locally on
the PTD as well as through the mobile
app.
Press the Home-Away button
to toggle between the two
modes.
You can change the default
Away temperature in the PTD,
by clicking Settings.
In the mobile app, tap the
settings icon on the
top right to view this option.
Away
The system will maintain a fixed pre-set
temperature. Heating, timer and hot water
(including boost) schedules will not work
in Away mode, until it is cancelled.
Summer
Switch to this mode if you wish to restrict
heating control in all defined zones to
frost protection mode. In this mode, all
heating and timer schedules will stop
however, hot water will continue to work
(including boost functionality). You cannot
change heating and timer settings on the
PTD or mobile app but hot water and
Refer section
Applying the summer mode to
set the device in Summer
mode. The default
temperature is set at 5degree
Celsius but this can be
changed from the Settings

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boost settings can be modified.
menu of the PTD.
In the mobile app, tap the
Settings icon on the
top right to view this option.
4.4 Adjusting the date and time settings
The PTD should already have the correct time and date when you unbox it, but can be
amended if required:
1. Press the top menu button and navigate to the Settings menu (If required press +/-
until you reach the menu)
2. Press the +/- buttons until you reach the Edit Date/Time submenu and then confirm.
3. The Edit Date screen appears with the day flashing. Press +/- to adjust the day and
then confirm. (Long press the +/- buttons to advance the day more quickly.)
4. Next the month starts flashing. Press +/- to adjust the month and then confirm. (Long
press the +/- buttons to advance the day more quickly.)
5. Next the month starts flashing. Press +/- to adjust the month and then confirm. (Long
press the +/- buttons to advance the day more quickly.)
6. Next the year starts flashing. Press +/- to adjust the year and then confirm.
7. Next set the required time format and confirm. The following options are available
•24-hour format
•12-hour format
Based on the chosen format, the Edit time screen will appear. Press +/- to adjust the time
in hours and minutes and then confirm. (Long press the +/- buttons to advance the time
more quickly.)
4.5 Adding another zone (PTD, Sensor or Wired device)
You can add additional devices to the system either using the PTD or the mobile app. For
example, you can add a temperature sensor or wired device to a spare zone using the
PTD. To add an additional PTD, you will need to use the mobile app.
Tap Settings> Manage device> Add device>Choose from the 3 options >Select zone
Note:
It is possible to control the schedule of an existing wired thermostat or other device
switching less than 3A
This is particularly relevant if you are upgrading from the Channel Plus range and wish to
use the existing wired thermostats:
Adding a device from the PTD: