Honeywell Stanley ST9400C - User Manual

ST9400C / Stanley – User Guide
7 day Programmer
2 channel, 3 on/off per day
Honeywell Control Systems Ltd.
Arlington Business Park,
Bracknell
Berkshire
RG12 1EB
Technical Help Desk: 08457 678999
www.honeywelluk.com
50022737-005 A
© 2007 Honeywell International Inc.
Features
Easy to use slider and buttons combined with ‘LoT’™ Technology and an
‘OK’ button, allows you to confirm changes and stay in control.
LoT™ Technology provides you with informative ‘on-screen’ feedback and operational
assistance as and when required.
Extra Large LCD (Liquid Crystal Display) with Backlight provides added user
friendliness and clearer viewing – even in the dark.
Independent 7-day Heating & Hot Water Programmes let you choose settings
built into ST9400C for each day of the week to match your lifestyle, while maximising
energy savings, or alter them to your personal settings.
Automatic Summer/Winter Time Change will adjust the clock forward and backward
automatically when the clocks change, saving you having to change your ST9400C
every time.
Built-in Memory holds your programme indefinitely - even if the mains power fails.
Energy Efficiency and the Environment
Home energy use is responsible for more than ¼ of the total UK carbon emissions
which contribute to climate change. Heating and hot water systems based on
boilers account for of this figure, so it is important to understand how your
controls can help to maximize energy efficiency while maintaining your comfort.
Your Programmer should be used in conjunction with appropriate temperature
controls. In order to save energy the following general points should be
observed:
1. Ensure your system contains a room thermostat and a hot water thermostat,
and that both are set to appropriate temperature levels: typically 20°C for the
room temperature and between 55 - 60°C for the hot water temperature.
2. Programme your heating and hot water to be off when you are not in the house.
If you are concerned about possible frost damage to any exposed pipe work, it
is advisable to fit a frost protection system – your installer can advise you about
this.
3. Think about how you use your domestic hot water – if you have a storage
system, it is not necessary to have this switched on all the time, even when you
are in the house.
4. Consider the heat up times required for your central heating. Every home
responds differently when the heating is switched on. Adjust the start time so
that you are not cold when you get up in the morning. A shorter heat up time is
required for other heating periods.
5. In the evening, when the house is up to temperature, it is often possible to
switch off the heating up to an hour before you go to bed, without any noticeable
reduction in comfort.
PLEASE RESPECT YOUR ENVIRONMENT!
Take care to dispose of this product and any packaging or literature in an appropriate way
This product and its associated documentation and packaging are protected by various intellectual
property rights belonging to Honeywell Inc. and its subsidiaries and existing under the laws of the UK
and other countries. These intellectual and property rights may include patent applications, registered
designs, unregistered designs, registered trade marks, unregistered trade marks and copyrights.
Honeywell reserves the right to modify this document, product and functionality without notice. This
document replaces any previously issued instructions and is only applicable to the product(s)
described.
This product has been designed for applications as described within this document. For use outside of
the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be held responsible
for misapplication of the product(s) described within this document.
Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell
Technologies Sarl, Ecublens, Route du Bois 37, Switzerland by its Authorised Representative Honeywell Inc.
This document is to be left with the user
and forms part of a Home Information Pack
WHAT IS A PROGRAMMER?
...an Explanation for Householders (as recommended by the Energy Savings Trust)
Programmers allow you to set ‘On’ and ‘Off’ time periods. Some models switch the central heating
and domestic hot water on and off at the same time, while others allow the domestic hot water
and heating to come on and go off at different times. Set the ‘On’ and ‘Off’ time periods to suit
your own lifestyle. On some programmers you must also set whether you want the heating and hot
water to run continuously, run under the chosen ‘On’ and ‘Off’ heating periods, or be permanently
off. The time on the programmer must be correct. Some types have to be adjusted in spring and
autumn at the changes between Greenwich Mean Time and British
Summer Time. You may be able to temporarily adjust the heating
programme, for example, ‘Override’, ‘Advance’, or ‘Boost’. These
are explained in the manufacturer’s instructions. The heating will
not work if the room thermostat has switched the heating off. And,
if you have a hot-water cylinder, the water heating will not work if
the cylinder thermostat detects that the hot water has reached the
correct temperature.

Summary

Understanding Your Programmer

What is a Programmer?

Explains the purpose of programmers for householders as recommended by the Energy Savings Trust.

Product Features Overview

User Interface and Technology

Highlights easy-to-use controls, LoT™ technology, and informative display.

Programming and Energy Efficiency

Covers 7-day programming, auto time change, and energy saving advice.

Boiler and System Service Log

Configuration and Service Data

Programmer Functionality Explained

General Description

Provides an overview of the ST9400C's function in controlling heating and hot water.

How to Use a Programmer

Guides users on how to set programmes based on lifestyle and heating requirements.

Getting Started: Initial Setup

Setting the Date and Time

Details the procedure for setting the current date and time on the programmer.

Getting Started: Initial Setup

Running a Built-in Programme

Explains how to use the pre-programmed settings after date and time are set.

Programming Your ST900 C

Built-in Programme Options

Introduces pre-set programmes (Profiles A, B, C) as starting points for users.

Recording Your Personal Programme

Provides a template for users to record their custom heating and hot water schedules.

Programming Your ST900 C

Reviewing Programme Times

Instructs on how to view existing programmed times for heating and hot water.

Modifying Cooker (Hot Water) Programme

Guides users on how to adjust the hot water (cooker) ON/OFF times.

Programming Your ST900 C

Copying Daily Programmes

Explains how to duplicate a day's programme to other days for efficiency.

Programming Individual Days

Details how to manually set programmes for individual days.

Programming Your ST900 C

Modifying Heating Programme

Guides users on how to adjust the central heating ON/OFF times.

Disabling;Enabling Time Periods

Explains how to disable or re-enable programmed ON/OFF time slots.

Operating Your ST900 C

Choosing Operating Modes

Explains how to select modes like OFF, AUTO, ONCE, CONT for heating/hot water.

Temporary Operation Override

Details how to temporarily switch heating/hot water ON or OFF without altering the schedule.

Operating Your ST900 C

Using the Extra Hour Function

Describes how to temporarily extend heating/hot water ON times by one hour increments.

Setting the Holiday Function

Allows users to set the system to be off for a specified number of days while away.

Fine Tuning Your ST900 C

Changing Time Display Format

Explains how to switch between 12-hour AM/PM and 24-hour clock formats.

Installer Parameter Adjustments

Lists adjustable installer parameters and their options for system configuration.

Fine Tuning Your ST900 C

Installer Mode Operations

Details how to enter, navigate, and exit the installer configuration mode.

FAQ and Troubleshooting

Setting the Time Correctly

Provides steps to adjust the clock time if it becomes incorrect.

Daylight Saving Time Adjustments

Addresses the automatic time change feature for daylight saving.

Troubleshooting Programming Issues

Offers advice on how to navigate out of difficult programming situations.

Power Failure and Data Retention

Explains system behaviour and data retention during a mains power outage.

FAQ and Troubleshooting

Comprehensive Troubleshooting Guide

A table listing common symptoms, their possible causes, and recommended remedies.

Mini-Programmer Instructions

Understanding Mini-Programmers

Explains the concept and conditions for a Mini-Programmer configuration.

Programming Mini-Programmer Systems

Details programming times for systems configured as Mini-Programmers.

Mini-Programmer Instructions

Time Period Management

How to disable or re-enable time periods in Mini-Programmer mode.

Operating Mode Restrictions

Explains restricted operating modes for Mini-Programmers.

Override and Extra Hour Functions

Describes how override/extra hour functions behave in Mini-Programmer mode.

Configuration and Service Data

Installer Configuration Record

A table for the installer to record system configuration settings.

Overview

1. Function Description
2. Usage Features
3. Programming
4. Maintenance Features

The Honeywell ST9400C is a 7-day programmer designed to control both central heating and hot water systems, allowing users to set specific ON and OFF periods to match their lifestyle. This device does not directly control temperature but works in conjunction with other temperature controls, such as room and cylinder thermostats, to manage the heating and hot water in a home.

Function Description

The ST9400C offers independent 7-day programming for both heating and hot water, with up to three ON/OFF periods per day. This allows for flexible scheduling, where each day of the week can be set differently, and heating and hot water can be programmed at different times from each other. The device comes with built-in programmes (Profiles A, B, and C) that provide a starting point for typical daily heating and hot water needs, which can then be personalised.

A key feature is the Automatic Summer/Winter Time Change, which automatically adjusts the clock forward and backward during daylight saving transitions, eliminating the need for manual adjustments. The programmer also includes a Built-in Memory that retains the programmed settings indefinitely, even in the event of a mains power failure.

Usage Features

The ST9400C is designed for ease of use, combining a slider and buttons with LoT™ Technology and an OK button for confirming changes. The Extra Large LCD (Liquid Crystal Display) with Backlight enhances user-friendliness and provides clearer viewing, even in low light conditions.

LoT™ Technology provides informative 'on-screen' feedback and operational assistance as needed, guiding the user through programming and daily operations.

Operating Modes: The programmer offers four operating modes for heating (and hot water, if independently controlled):

• OFF mode: The system remains off.
• AUTO (Automatic) mode: The system switches ON and OFF according to the programmed schedule.
• ONCE mode: The system comes ON at the first programmed ON time and goes OFF at the last programmed OFF time, staying on continuously between these two points.
• CONT (Continuous) mode: The system remains ON continuously.

Slider Positions: The slider has positions for DAY/TIME, COOKER (hot water), HEATING, and RUN.

• DAY/TIME: Used for setting the date and time.
• COOKER: Used for programming and reviewing hot water times.
• HEATING: Used for programming and reviewing heating times.
• RUN: The normal operating position where the programmed schedule runs.

Override Function: This feature allows temporary changes to the current operating mode without altering the programmed schedule. If the system is OFF and you return home unexpectedly, pressing the OVERRIDE button will switch it ON until the next programmed time. If the system is ON, pressing OVERRIDE will switch it OFF until the next programmed time. The LoT™ Display provides information about the override status.

Extra Hour Function: This allows users to add 1, 2, or 3 extra hours of heating or hot water. If the system is OFF, pressing the EXTRA HOUR button will switch it ON for one hour. If the system is already ON, it extends the current ON period by one hour. Multiple presses can add up to a maximum of 3 extra hours. This function can be cancelled by repeatedly pressing the EXTRA HOUR button until the 'CANCELLED' message appears.

Holiday Function: This feature allows users to switch off heating and hot water for a specified number of days (1-99 days) when away from home, saving energy and costs. The system automatically resumes normal operation on the day of return. To set, press the HOLIDAY button, use the +/- buttons to set the number of days, and confirm with OK. The display will show 'ON HOLIDAY' and count down the days until return. To cancel, press the HOLIDAY button again.

Programming:

• Setting Date & Time: Move the slider to DAY/TIME. The display will prompt to 'SET DATE + TIME', then 'SET THE DAY', 'SET THE MONTH', and 'SET THE YEAR'. Use the +/- buttons to adjust values and the OK button to confirm each step. Finally, 'SET THE TIME' is adjusted similarly.
• Modifying Programmes: Move the slider to COOKER or HEATING. The display will show 'SET HOT WATER' or 'SET HEATING'. Use the OK button to cycle through ON/OFF times (ON 1, OFF 1, ON 2, OFF 2, ON 3, OFF 3). Use the +/- buttons to adjust times in 10-minute increments and OK to confirm.
• Copying Programmes: While viewing a day's programme, press the COPY DAY button. The display will ask 'COPY [DAY] TO [NEXT DAY] OK?'. Use NEXT DAY to select the target day and OK to confirm.
• Disabling/Enabling Time Periods: To disable an ON/OFF period, set its ON time and paired OFF time to be identical. To re-enable, set them to different times.

Installer Parameters: The ST9400C has an Installer Mode (accessed by holding OK and +/- buttons together in RUN position for 8 seconds) where specific features can be adjusted to suit user preferences or system requirements. These include:

• 24hr or AM/PM clock display.
• Backlight operation (off, on if button pressed, on continuously).
• Enable/disable auto time change.
• 1-day, 5/2-day, or 7-day operation.
• Number of ON/OFFs per day (2 or 3).
• Default programme profile (A, B, or C).
• Configuration as a Mini-Programmer (if the system has gravity circulation hot water without a control valve, heating being ON means hot water is also ON).
• Reset all parameters to default.

Mini-Programmer Operating Instructions: If configured as a Mini-Programmer, the device simplifies programming as heating and hot water cannot be controlled independently. In this mode, some operating modes are not possible (e.g., HEATING in AUTO and HOT WATER in OFF). The OVERRIDE and EXTRA HOUR functions for heating will also bring on hot water.

Maintenance Features

The ST9400C is designed for reliability with a built-in battery backup that maintains the real time during mains power failures, ensuring the clock remains correct. All programmed settings are stored in non-volatile (NV) memory, requiring no power to retain information, thus preserving programmes indefinitely.

Troubleshooting Guide: The manual provides a guide for common issues:

• Blank LCD display: Check for power to the heating system or call an installer if there's a fault in the ST9400C.
• Heating/Cooker ON but radiators cold/taps cold: Check if temperature controls are off or set too low, or if the boiler/system controls have malfunctioned.
• 'INTERNAL FAULT' message: Indicates a fault in the ST9400C; call an installer.
• 'NOT VALID' message when slider moved to HOT WATER: This suggests the ST9400C might be configured as a Mini-Programmer, which restricts independent hot water control. The user should check the configuration data or contact the installer.

The device is designed to be left with the user and forms part of a Home Information Pack, providing essential information for homeowners.

Honeywell Stanley ST9400C Specifications

General

Model	ST9400C
Brand	Honeywell Stanley
Category	Thermostat
Type	Programmer
Number of Channels	2
Program Periods Per Day	3
Display	LCD
Power Supply	Mains
Mounting	Wall Mounted
Override Function	Yes
Battery Backup	Yes
Voltage	230V
Frequency	50Hz
Programmable	Yes
Backup Battery	Yes
Operating Mode	Heating