SINGLE ROOM UNDERFLOOR HEATING PACK

INSTALLATION AND USER GUIDE

IDEAL FOR CONSERVATORIES AND EXTENSIONS

JGUFHPACK20 - FOR UP TO 20SQMJGUFHPACK30 - FOR UP TO 30SQM

AUGUST 2006

01

THE JG SPEEDFIT UNDERFLOOR HEATING PACKS

• Ideal for conservatories and extensions

• Quick and easy to install

• Stand alone system

• Pre assembled and pre wired

• Suitable for tiled, timber or carpeted floor coverings

Control Unit, which is pre assembled and pre wired, has integral ballvalves to allowfor isolation from the primary system, an adjustable blending valve to control the temperature of the water and a high quality 6 metre head circulating pump. An anti-vibration mounting bracket ensures silent operation.

THE PACKS ARE DESIGNED TO BE USED IN SOLID FLOOR INSTALLATIONS.

Programmable Room Thermostat to give individual time and temperature control to theconservatory or room extension. An LCD display shows current and set temperatures.A simple menu makes for easy adjustment by the householder.

Speedfit Polybutylene Barrier Pipe, manufactured and Kitemarked to BS7291 Part 2: Class S.

BOTH PACKS CONTAIN : -

THE 30SQM PACK CONTAINS :-1 Control Unit1 Programmable Room Thermostat2 15mm x 100m Coils Polybutylene Pipe

300 Pipe Clips8 Pipe Inserts2 15mm Speedfit Equal Tees2 15mm Speedfit Stem Elbows

1 Control Unit1 Programmable Room Thermostat1 15mm x 150m Coil Polybutylene Pipe

200 Pipe Clips2 Pipe Inserts

THE 20SQM PACK CONTAINS :-

02

READ THIS FIRST

The information contained in this publication is designed to assist withthe trouble free installation of a Speedfit Single Room UnderfloorHeating Pack.

Before installing or operating any part of the Speedfit System, pleaseread through this Instruction Manual thoroughly. On completion of theinstallation, leave a copy with the householder for future reference.

It is the responsibility of the installer to ensure that equipment connectedto the Speedfit System is suitable for the purpose for which it is usedand installed in accordance with the manufacturer’s instructions.

WARRANTIESAs a result of its long term programmes and rigourous quality standardsJohn Guest Speedfit Limited offer a 25 year guarantee against the defects in materials or manufacturing of Speedfit Barrier Pipe manufactured by John Guest.

John Guest Underfloor Heating Products, which should be installedand maintained in accordance with our recommendations, carry a 2year guarantee against defects in materials and manufacture.

John Guest Plumbing and Heating Products are for use with normal UKdomestic plumbing and heating systems and supplied in accordancewith our Conditions of Sale.

ELECTRICAL INSTALLATIONIn accordance with current legislation, a competent and qualified person must complete all electrical work. JG Speedfit cannot be heldresponsible for damage to components, fixtures, fittings or injurycaused by incorrect or faulty wiring.

PRE INSTALLATION CHECKS

To ensure suitability of the Heating Pack, please note the following

- Speedfit recommend that wherever possible, the Control Unit be connected to the primary flow and return and wired independently back to the boiler.

- The boiler serving the new system will need to have the ability to take the extra output of up to 3KW.

- The boiler needs to be compatible with the additional pump on the system.

- In areas of high heatloss such as conservatories, additional heating may be needed to obtain optimum comfort levels.

- Pack JGUFHPACK20 will serve a maximum area of 20m2

and Pack JGUFHPACK30 will serve a maximum area of 30m2

For floor areas larger than 30m2, Speedfit offer a range of underfloorheating products to cater for any size of project. For further informationcontact our Technical Help Desk 01895 425333.

SITE PREPARATIONThe site for the underfloor heating system should be clean and level.

A layer of Speedfit Edge InsulationStrip should be fixed around theperimeter of the area. This willreduce heatloss and act as anexpansion medium. The InsulationStrip should be fitted up to finished floor level, to be trimmedafter the screed has cured.

The floor insulation can now be fitted. Tape up all joints to prevent coldbridges forming and screed getting beneath the insulation. The depthof insulation should comply with current Building Regulations, normally60 - 70mm, Celotex or similar.

INSTALLATION OF CONTROL UNIT

The Underfloor Heating Control Unit should be fixed vertically with themixing valve at either the top or the bottom, or horizontally with theelectrical connection box uppermost.

Provision should be made to vent air to protect the pump from cavitation.

The Unit should NOT be floor mounted or in any other position that hasthe pump shaft vertical.

The Unit’s situation must allow adequate clearance and accessibility forpipework and maintenance.

Locate the Control Unit on the wall and mark the hole fixing positionsthrough the bracket.

Take care to protect the electrical equipment and cables.

Drill the holes using a 8mm masonry drill, plug the walls and secure theunit to the wall using the screws provided.

The Blending Valve on the Control Unit controls the temperature of thewater in the underfloor heating loop. Temperature can be adjusted to suitthe resistance of the floor to heat transfer.

✓

✗

✓

✓

RETURN TO THE HEAT SOURCE

FLOW FROM HEAT SOURCE

RETURN FROM UNDERFLOORHEATING LOOP

FLOW TO UNDERFLOOR LOOP

BLENDING VALVE

03

INSTALLATION OF PIPEWORK

The shape of the room and the position of outside walls and windowsshould determine the pattern of the pipe layout. The counterflow pattern is preferred but other options are shown below.

COUNTERFLOW

SINGLE SERPENTINE

DOUBLE SERPENTINE

TRIPLE SERPENTINE

DOUBLE MEANDER

Whichever layout pattern you use, the pipes should be fixed at 150mmcentres, this equates to approximately 6.5m of pipe per m2 of floor area.

Allow a gap of 100mm between the pipes and the walls to prevent damage from fixtures and fittings.

The table below shows an estimate of the length of pipe needed for various sizes of room and different floor coverings. Remember to allowsufficient pipe to provide a flow and return to the Control Unit.

For areas larger than 15m2, the areashould be split into 2 loops of pipe covering equal floor areas. Use a standardSpeedfit 15mm Equal Tee and StemElbow connected directly to the flowand return from the unit.

Install the Floor Clips by screwingthem into the insulation, between500mm and 700mm apart.

Push a Pipe Insert into the endof the pipe and connect the pipe to the flow to underfloorloop connection on the unit.

Clip the pipe to the Floor Clipsand, again using a pipe insert,connect the end of the loop tothe return from underfloor heatingloop connection on the Control Unit.

Please ensure the ends of thepipe are free of score marks andburrs and sharp edges havebeen removed.

✗

Loop Max Max

Length Area Temp/Tiles Temp/Carpet Output

(m) (m2) (ºC) (ºC) (KW)

100 15 44 58 1.5

150 22 44 58 2.0

The maximum length of any single pipe circuit should be 100metres.

04

TYPICAL PIPEWORK CONNECTIONSSpeedfit recommend that wherever possible, the Control Unit is connected to the primary flow and return.

BOILER

RADIATORS

SINGLE ROOM CONTROL UNIT

ZONEVALVES

CH PUMP

BYPASS

PRESSURE TESTING

The underfloor heating pipework should be pressure tested before thesystem is connected to the primary circuit and before screeding.

This is done by connecting the pressure tester via a piece of pipe to thered ballvalve and connecting a hose from the cold mains to the blueballvalve.

Fully open both valves and fill the system, to purge all traces of air, untilwater is entering the pressure tester.

Turn the blue ballvalve off and disconnect the hose between the blueballvalve and the mains. Using the pressure tester, pressurise the system to 2 Bar for 10 minutes and then 6 bar for 10 minutes.

The test to 6 Bar is because the pump is connected.

After testing, the system should remain pressurised at 6 Bar throughoutthe screeding and curing process. This is in accordance with BSEN1264 Part 4.

BLENDING VALVE SETTINGSThe thermostatic blending valve has a temperature range of between 35˚Cand 60˚C.

MIN 35˚C1 40˚C2 44˚C3 48˚C4 50˚C5 54˚C6 58˚C

MAX 60˚C

After the screed drying process, the blending valve should be adjustedto suit comfort levels and the floor covering. For screeded floors thetemperature level will normally be set between 44˚C and 58˚C.

To achieve comfort levels the maximum floor surface temperature willnormally not be required to exceed 29˚C ( 35˚C in bathrooms).

Timber floor finishes such as laminated products may suffer from excessive material shrinkage if the floor surface temperatureexceeds 27˚C.

SCREEDINGThe screed should be laid as soon as possible after the pressure test.

The system should be left pressurised during the screeding process.The screed must be laid so that it is in good contact with the pipes withno air pockets.

Traditional sand and cement screed is normally 65-75mm thick. Itshould be allowed to dry naturally in line with the requirements of thescreed manufacturer’s instructions and British Standards.

Special low thickness screeds are available and screed manufacturerswill be able to advise on their use with underfloor heating.

Manufacturers’ screed drying times will vary but under no circumstances should the underfloor heating system be used tospeed up the drying process as it may damage the screed.

OPERATING PRINCIPLESThe Speedfit Control Unit will operate when :-

- The room thermostat is calling for heat.

- The primary heating circuit is on and the water temperature has reached 43˚C.

The blending valve will maintain the temperature of the heating loop,blending the cooler return flow from the loop with the flow from the boiler.

A control knob on the blending valve adjusts the temperature of waterto suit comfort levels and different floor finishes.

The room thermostat will switch the pump off when the selected roomtemperature is reached.

When the primary heating is off and the room thermostat is calling forheat, the pump will continue to run until the temperature in the heatingloop falls to approx 30˚C.

BOILER

RADIATOR

SINGLE ROOM CONTROL UNIT

However it is possible to connect to the nearest radiator supply as perthe diagram below, Connecting in series will prevent the radiator beingrobbed of heat.

The valves on the radiator you connect to must be fully open.Thermostatic radiator valves must be replaced by a standard radiator valve.

05

FOR A CONTROL UNIT PIPED BACK TO A PRIMARYCIRCUIT - 2 PORT VALVE CONTROLS THE BOILER

All wiring should be undertaken by a qualified electrician and conformto IEE Regulations. To comply with the regulations, the pump on the control unit is provided with an earth connection via the connection box.

Connect the control unit to a mains fed spur fused at 3 amps.

The method of control, which provides independent control of the boiler, is to use a Programmable Room Thermostat wired to a zonevalve, fitted to a dedicated flow and return to the room pack. The zonevalve will be used to turn the boiler on and off as per conventional central heating practice i.e. the live on the Programmable RoomThermostat is connected to a permanent live. The switched live from theProgrammable Room Thermostat is connected to the switched live(brown) of the zone valve. This removes the need to alter the internalwiring on the Room Pack.

For further information, please contact the Speedfit Technical Helpdesk 01895 425333.

240V MAINS SUPPLY3 AMP FUSED

PRE-WIRED SINGLE ROOM CONTROL UNIT -CONNECT TO POWER SUPPLY ONLY. UNIT IS SWITCHED ON/OFF VIA INTERNAL TEMPERATURE SWITCH

SPEEDFIT PROGRAMMABLEROOM THERMOSTAT

( JGUFHPRS )

2 PORT ZONE VALVE( SPRING RETURN WITH END SWITCH )

SWITCHED LIVE FEED TO FIRE BOILER DIRECTLY OR TO EXTG JUNCTION BOX

N

E

SL

SL

SL

PERMANENT LIVE

NEUTRAL

EARTH

SWITCHED LIVE(STAT “ON” CALLING FOR HEAT)

PERMANENT LIVE(TO 2-PORT ZONE VALVE)

SWITCHED LIVE(TO FIRE BOILER FROM ZONE VALVE)

SWITCHED LIVE(TO POWER ZONE VALVE MONITOR)

SL

PERMANENT LIVE(FROM SRCU TO STAT)

L

L

PERMANENT LIVE CONNECTION TO

POWER ROOM THERMOSTAT

SINGLE ROOM CONTROL UNIT

06

YOUR PROGRAMMABLE ROOM THERMOSTAT

- Keypad Lock Facility

- Battery Backup Power Supply

- Reset Function

- Improves Energy Efficiency

- Holiday Function

- 9 Preset Weekly Programs

- 4 User Set Programs

- Current Temperature and Time Display

- Manual Override Facility

FEATURES

OVERVIEW

The Speedfit Programmable Room Thermostat is used to set individualtime and temperature control for each room or a ‘zone’ of 2 or more rooms.

There are 9 preset 7 day programs and the facility to create up to 4 userprograms where you can set up your own daytime and set back heating patterns.

TECHNICAL CHARACTERISTICS

MEASURED TEMPERATURE 0.1ºC (OR 0.2ºF)PRECISION

SET TEMPERATURE 0.5ºC (OR 0.5ºF)PRECISION

SET TEMPERATURE DAYTIME AND SETBACK : 5ºC - 35ºF (OR 41ºF - 95ºF)RANGE

IN ANTI FREEZE : 0.5ºC - 10ºC (OR 33ºF - 50ºF)

REGULATION - REGULATION SPEED 7.5 CYCLE PER HOUR CHARACTERISTICS (8 MINUTES CYCLE)

- REGULATION BAND 2ºK OF PROPORTIONAL BAND (ADJUSTED POWER)

DRIVING ELEMENT 8A RELAY (WITH HEATER AND COOLING DEVICES CONTACTS)

CONNECTION 3 POINTS SCREW CONNECTOR ON THE REAR PART OF THE BOX

BATTERIES 3 X LR6 AA 1.5V BATTERIES

DIMENSIONS112

6024

60

Ø 3.50

73

INSTALLATION & WIRING

1 Remove the front panel of the thermostat by pressing on the left side ofthe casing. Place the casing (A) on a flat wall away from windows anddoors and not too close to the heater.

Put the connection wires (B) through the back hole of the casing. Use the screws (C) to mount the casing on the wall.

2Connect the wires to the connector (D). Follow the connection diagram.

3Remove the plastic isolator on the batteries to power up the thermostat.Then replace the cover as explained in step 3 of BATTERY REPLACEMENT.

4Now go to RESET THE THERMOSTAT.

(COOLER)

L

N

HEATER

AB

CD

07

SETTING UP THE PROGRAMMABLE ROOM THERMOSTAT

DAYTIME AND SET BACK

Unlike a radiator system, underfloor heating works at its most efficient when operating 24 hours a day. Electronic controls provide a means by whichtemperature can be set back by between 4-5ºC during periods of low demand. So, for instance a lounge can have a temperature setting of 21ºC duringdaytime, reducing to 17ºC during set back (night time).

A bedroom may well require a so called daytime temperature setting during the evening and night and a set back temperature during daylight hours.

The example below, taken from the LCD Display, shows daytime settings between 0700-0900 and 1700-2300 and a set back between 2300-0700 and0900-1700.

1 2 3 4 5 6 7

UNDERSTANDING THE LCD DISPLAY

DAYTIME MODEHaving chosen the heating program, this modeallows you to select the daytime temperature. Thatselected temperature can be overridden using theManual Override Function.

AUTO MODEIn AUTO mode, the thermostat will follow the heatingpattern of the selected program.

SET BACK MODEHaving chosen the heating program, this modeallows you to select the set back temperature. We would recommend that the set back temperaturebe 4ºC below the daytime temperature. The setback temperature can be overridden using theManual Override Function.

ANTI FREEZE OPERATING MODEUsed to provide the minimum of heating to ‘air’ an unoccupied building and prevent water in the system from freezing. See ANTI FREEZE FUNCTION.

OFF MODEUsed when you need to turn your underfloor heating system off. The time, day and other informationwill be stored. Awake the thermostat by pressingany button, then use < or > to select the required mode.

CLOCK MODEShows the current time and day. See SETTING THETIME AND DAY.

PROGRAM MODEAllows you to choose from the 9 preset weeklyheating programs, or create up to 4 user programswhich can be tailor made to suit your needs. SeeSetting Your Underfloor Heating Requirements.

MODE DESCRIPTION

OPERATING MODE MENU ( USE < > KEYS TO CHANGE MODE )

HOLIDAY FUNCTION ACTIVATED

SET TEMPERATURE OVERRIDDEN

HEATING ON

TEMPERATURE( USE + / - KEYS TO CHANGE TEMPERATURE )

ROOM TEMPERATURE DISPLAYED

LOW BATTERY WARNING

DAYS OF THE WEEK

TIME DISPLAY

SELECTED HEATINGPROGRAM

08

RESET THE THERMOSTAT

This ensures that all preset information reverts to FACTORY SETTINGS,on page 10.

Using the < > buttons, select the Off mode .Once the LCD display switches off, hold down + and - and press .

After a couple of seconds, all icons and graphics will become visible,this confirms that the thermostat has been reset.

OK

SETTING THE TIME AND DAYUsing < > buttons select the Clock mode Press The minutes will begin to flash.Use + - to set the correct time.Use < > buttons to switch between minutes and hours.Press to confirm time.Day 1 will begin to flash.Use < > buttons to select the correct day.1-Mon 2-Tue 3-Wed 4-Thu5-Fri 6-Sat 7-SunPress to confirm.

OK

OK

OK

SETTING A USER PROGRAM - PROGRAMS U1 - U4

Use < > to select program mode and press .The program and the day will begin to flash.Use + - to select U1.

SETTING YOUR UNDERFLOOR HEATINGREQUIREMENTSThe thermostat has 9 preset programs to provide a quick and easy wayof setting the system’s heating patterns.In addition, there are 4 user programs that allow you to set your owndaytime and set back heating patterns.

SETTING A PRESET HEATING PROGRAM - PROGRAMS P1- P9

An easy reference of the 9 preset programs is shown on page 10.

Use < > to select the program mode and press .The program and day will begin to flash.

OK

Use + - to change the program, and < > to view the heating patternfor each of the seven days.NOTE Most preset programs have the same daytime and set backtimes for days 1-5 and different time settings for days 6 and 7Set the program you require by pressing . Within a minute or so thethermostat will change to mode.

The preset program will only be followed whilst the thermostat isin mode.

OK

1 2 3 4 5 6 7

All 24 hours are now at daytime setting.Press and the time and the hour cursor will flash.Use < > to select those hours which need to be moved to set back.Choose the first hour to be set back and press - . Press - again foreach hour to be added to the set back period.Press > to continue to select hours that need to remain in daytime setting.Continue through the 24 hours of day 1.Further set back periods can be programmed using the - button.

OK

1 2 3 4 5 6 7

OK

After creating a heating pattern for day 1 the program will then continue to day 2. Continue to press - and > to complete program U1to the end of day 7.Having completed programming of U1 there is the facility to program 3more user programs, U2, U3 and U4.To start programming U2 follow the instructions from the start of this section.NOTE The program will only be followed whilst in mode.

1 2 3 4 5 6 7

In this example, Program U1 has been set for Day 1.

Daytime from Midnight to 06:00, 12:00 to 14:00 and 18:00 to Midnight.

Set Back from 06:00 to 12:00 and 14:00 to 18:00.

09

SETTING THE DAYTIME TEMPERATUREThe thermostat is factory set at a daytime temperature of 21ºC.

To alter that setting:Use < > to select daytime mode .Use + - to select the desired temperature.Use < > to return to .

SETTING THE SET BACK TEMPERATURE

The thermostat is factory set at a set back temperature of 17˚C.

To alter that setting:Use < > to select set back mode .

We recommend that the set back temperature be set at 4˚C belowdaytime temperature.

Use + - to select the desired temperature.Use < > to return to .

MANUAL OVERRIDE FUNCTION

It is possible to manually override the temperature setting.In mode, use the + - buttons to set the override temperature required.The icon will appear.At the next change in the program’s pattern, the temperature willrevert to the preset level and the icon will disappear.

HOLIDAY FUNCTION

The holiday function allows you to override the system for up to 95days. For example, the heating system can be run at a reduced temperature while you are away, returning to mode the day you return.

The holiday function can be set to run at daytime , set back ,or anti freeze temperature.

To reach HOLIDAY FUNCTION use < or > until appears. ‘no’ idicates HOLIDAY FUNCTION is not set.

Use + - buttons to set the number of hours or days you wish to override the system. Press to confirm.

The thermostat will now revert to anti freeze mode. Use < > to select daytime or set back mode.

SPECIAL FUNCTIONS

ANTI FREEZE FUNCTION

The system can be set to run only at a low room temperature (between0.5˚C and 10˚C). This will keep the room aired and avoid the water inthe system freezing.To set the antifreeze function, use < > to select anti freeze mode .Use the + - to set the temperature setting and press to confirm theselected temperature.In anti freeze mode the temperature will not fall below the selectedlevel. This will continue indefinitely until the mode is changed. To set the anti freeze function for up to a maximum of 95 days, use thefacility within the holiday function.

We recommend that the temperature be set at a minimum of 5ºC.

RESET FUNCTION

Returns the thermostat to factory settings.Using the < > buttons, select the Off mode .Once the LCD display switches off, hold down + and - and, at thesame time, press .After a couple of seconds, all icons and graphics will become visible,this confirms that the thermostat has been reset.

BATTERY BACKUP

A battery backup ensures no loss of stored data during power cuts orwhen the thermostat is in the off mode.The low battery icon will appear when the batteries need replacing.

KEYPAD LOCK

To prevent unauthorised tampering. Hold down , simultaneously pressthe + or - button, will appear.

Repeat the process to unlock. will appear.

FACTORY SETTINGS

Daytime 21˚CSet Back 17˚CAnti Freeze 6˚CUser Programs All 24 hours in daytime setting

Preset programs See page 10.

OK

OK

OK

OK

HOW TO CHANGE THE BATTERIES

BATTERY REPLACEMENT

Press on the left side button and pull the front panel toremove it. You now have access to the batteries.

1

Replace the three LR6 AA 1.5V batteries with new ones.

IMPORTANT: You have 1 minuteto change the batteries.

2

To close the thermostat:

Hold the front panel over thecasing. Insert the 3 contacts intothe 3 connector holes. Push thefront panel while keeping it parallelto the case.

Press slightly on the button tohelp final assembly.

3

10

1 2 3 4 5 6 7

PRESET HEATING PROGRAMS - P1 - P9

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7

DAY 1 - 5 DAY 6 - 7 DAY 1 - 5 DAY 6 - 7

DAY 1 - 5 DAY 6 DAY 7

DAY 1 - 5 DAY 6 DAY 7

DAY 1 - 5 DAY 6 DAY 7

DAY 1 - 5 DAY 6 - 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7

DAY 1 - 5 DAY 6 - 7

DAY 1 - 5 DAY 6 DAY 7

DAY 1 DAY 2 - 4 DAY 5 DAY 6 - 7

Z2105/239/08/06

John Guest Speedfit LimitedHorton Road, West Drayton, Middlesex UB7 8JL, England. Tel: 01895 449233 Fax: 01895 420321. www.speedfit.co.uk Technical Help Desk: 01895 425333

The company has a policy of continuous research and development and

reserves the right to amend without notice the specification and design of all

products illustrated in this catalogue. John Guest Speedfit reserve the right to

change the colour and shape of products. Photographs are for illustration

purposes only.

Subject to our Terms and Conditions of Sale available on request.

and are registered trademarks of John Guest

International Limited © Copyright 2006.