ST9400 is an Electronic Programmer which provides accurate time control for central heating systems with separate programs for heating and hot water. ST9400A is a 1-day version and ST9400C is a 7-day version.
ST9400 is suitable for replacing a wide range of Programmers on the market and is a direct replacement for Honeywell Home ST6400 Programmers without the need for re-wiring.
ST9400 Programmers can be combined with other Honeywell Home controls such as Room Thermostats, Cylinder Thermostats, Wiring Centres and Zone or Diverting Valves to form a fully automatic central heating control system.
If the ST9400 is replacing an existing ST6400 then the existing wall plate and wiring may be used, subject to any required electrical checks.
The Programmer should be mounted at a level where the display can be seen clearly, (1.2m from the floor, in compliance with Building Regulations Part M) and the ambient temperature is within the range of 0 to 40°C. The ST9400 is for use in normal domestic environments.
CAUTION
Isolate power supply and make safe before wiring the unit to prevent electric shock and equipment damage. Installation should be carried out by a qualified electrician or competent heating engineer.
To remove the unit from the wall-plate, slacken the two securing screws at the bottom of the ST9400 and hinge the unit up to separate the two halves.
RECOMMENDED CLEARANCE DISTANCES:
ALL WIRING MUST BE IN ACCORDANCE WITH IEE REGULATIONS. THIS UNIT IS FOR FIXED WIRING ONLY.
A switch, having a contact separation of at least 3mm in all poles (formerly Class ‘A’), must be incorporated in the fixed wiring as a means of disconnecting the supply.
The unit is a Class II (double-insulated) device. A parking terminal is provided for external earth continuity.
The system must be appropriately fused. A fuse rated at no more than 3 Amps should be installed.
The unit has 4 knockouts for surface wiring, care must be taken to ensure that the cable or mini-trunking completely fills the knockout hole without leaving any gaps.
EMC compliance considerations
Keep AC mains supply/load cables separate from signal wiring.
Refer to Code of Practice standards EN61000-5-1 and -2 for guidance.
ST9400 Internal Wiring
Sundial Plan Wiring Diagrams
Notes
Y-Plan, S-Plan, and C-Plan Systems | ||||||||||
10-WAY WIRING STRIP | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Honeywell Home T6360 ROOM- STAT | 2 | 1 | 3 | |||||||
Honeywell Home ELECTRONIC THERMOSTAT (BATTERY POWERED) | A | B | ||||||||
Honeywell Home WIRELESS THERMOSTAT (RECEIVER UNIT) * | L | N | A | B |
W-Plan System | ||||||||||
10-WAY WIRING STRIP | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Honeywell Home T6360 ROOM- STAT | 2 | 1 | 3 | |||||||
Honeywell Home ELECTRONIC THERMOSTAT (BATTERY POWERED) | A | B | ||||||||
Honeywell Home WIRELESS THERMOSTAT (RECEIVER UNIT) * | L | N | A | B |
* Wireless thermostat receiver unit MUST have permanent mains power from fused spur to operate correctly.
Final Assembly
Clip the unit onto the hinges on the top of the wallplate and hinge down into position. Tighten the two securing screws using a screwdriver.
Switch on the power – the unit will now be operating according to the built-in program. Note : the ST9400 is supplied with a factory set clock for faster installation .
Refer to ST9400 User Guides for programming details.
If using the ST9400 to replace other Honeywell Home Programmers, the equivalent wiring terminations are shown in the tables below.
ST6200/ST6300/ST6400 | N | L | 1 | 2 | 3 | 4 | ||
ST9400 | N | L | 1 | 2 | 3 | 4 |
ST699/ST799 | N | L | 3 | 4 | 5 | 6 | 7 | 8 |
ST9400 | N | L | 4 | 2 | not connected | 3 | 1 | not connected |
ST7100 | N | L | 3 | 4 | 5 | 6 | 7 | 8 |
ST9400 | N | L | not connected | 2 | 4 | not connected | 1 | 3 |
ST7000A | – | L | 2 | 3 | 4 | |||
ST9400 (see notes 1, 2) | N | L | 1 | 3 | 4 | |||
Notes: (1) A permanent mains supply must be provided for the ST9400 Programmer. (2) ST9400 must be configured as a Mini-Programmer |
ST9400 Programmers will mount directly onto many existing manufacturers’ back-plates, without the need for re-wiring. However, they are also supplied complete with a wiring back-plate, should this not be the case.
Refer to Honeywell Home for wiring conversion diagrams. (see Wiring Guide document EN3H2393 UK01)
The ST9400 has a special Installer Mode where some features can be adjusted to suit user lifestyle or preferences – these are called installer Parameters, and are listed in the table below, along with a description of the options that are possible.
INSTALLER PARAMETER | Parameter Number | LoT™ Display Description | Default Value | Range of Values | Description [LoT™ Display Description] |
24hr or am/pm clock display | 1 | CLOCK MODE | 12 | 12, 24 | 12 = am/pm display, [AM-PM] 24 = 24hr display [24 HOUR] |
Configure backlight operation (backlight consumes no additional energy) | 2 | BACKLIGHT | 2 | 0, 1, 2 | 0 = off, [NO B-LIGHT] 1 = on if button pressed, [B-L DELAY] 2 = on continuously [B-LIGHT ON] |
Enable/disable auto time change | 3 | AUTO TIME | 1 | 0, 1 | 0 = disabled, [NO CHANGE] 1 = enabled [TIME CHANGE] |
* 1-day or 5/2-day or 7-day operation | 4 | UNIT TYPE | 7 | 1, 5, 7 | 1 = 1-day operation, [1-DAY] 5 = 5/2-day operation, [5-2 DAY] 7 = 7-day operation [7-DAY] |
Number of ON/OFFs per day | 5 | ON PERIODS | 2 (for ST9400A) 3 (for ST9400C) | 2, 3 | 2 = 2 on/offs per day, [2 PER DAY] 3 = 3 on/offs per day [3 PER DAY] |
Select default time programme | 6 | DEF PROFILE | A | A, b, C | A = standard, [PROFILE A] b = at home, [PROFILE B] C = economy [PROFILE C] |
Configure Mini-Programmer | 7 | MINI-PROG | 0 | 0, 1 | 0 = standard programmer, [NO M-PROG] 1 = Mini-Programmer [M-PROG ON] |
** Reset all parameters | 8 | PROG RESET | 1 | 0, 1 | 0 = do not reset [RESETOFF] 1 = default parameters [RESET ON] |
* this parameter is NOT available on ST9400A, which is 1-day operation only.
** this parameter by default has a value of 1, unless you change any other parameter when it will change to 0. Set it to 1 to reset all parameters back to defaults.
To Exit Installer Mode:
You can exit Installer Mode at any time by moving the slider to the next position and then back again to RUN.
Note: Installer Mode will exit automatically after 10 minutes if the slider is not moved.
This product and its associated documentation and packaging are protected by various intellectual property rights belonging to Resideo 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 trademarks, unregistered trademarks and copyrights.
Honeywell Home 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 Home for guidance. Honeywell Home cannot be held responsible for the misapplication of the product(s) described within this document.
Manufactured for and on behalf of the Environment and Combustion Controls Division of ResideoTechnologies Sàrl, ACS-ECC EMEA, Z.A. La Pièce 16, 1180 Rolle, Switzerland by its Authorised Representative Honeywell Inc
Ademco 1 GmbH
Hardhofweg 40
74821 Mosbach
Phone: +49 1801 466 388
info.de@resideo.com homecomfort.resideo.com
@2020 Resideo Technologies, Inc.
All rights reserved The Honeywell Home trademark is used under license from Honeywell International Inc. This product is manufactured by Resideo Technologies, Inc and its affiliates.
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Honeywell Home ST9400C 7-Days PROGRAMMABLE THERMOSTAT INSTALLATION INSTRUCTIONS
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