UNDERFLOOR HEATING SYSTEMS DETAILS AND NOTES
CONTENTS 1 MANIFOLD DETAILS AND DIMENSIONS 2 TYPICAL CIRCUIT LAYOUT DETAILS 3 JOISTED SYSTEM DETAIL ( PLATES FROM ABOVE ) 4 JOISTED SYSTEM DETAIL ( PLATES FROM BELOW ) 5 SOLID FLOOR DETAIL ( COUNTERFLOW ) 6 SOLID FLOOR DETAIL ( SERPENTINE ) 7 TYPICAL 4 PORT MANIFOLD LAYOUT PLAN 8 FIXING DETAILS 9 EXAMPLE UFH SYSTEM 10 EXAMPLE UFH & RADIATOR SYSTEM ANNEXE A A UFH START UP & PRE-COMMISIONING PROCEDURE ANNEXE B B UFH FINAL COMMISSIONING PROCEDURE
DETAILS & NOTES MANIFOLD SET-UP & DIMENSIONS DATA SHEET 1 JUNE 2009
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 2 Issue 2 – FEB 07 TYPICAL PIPE LAYOUT DETAIL 1 "COUNTERFLOW " PATTERN Flow pipe laid next to external wall first Pipe Laid 100mm from face of wall to avoid fixings etc Pipe Laid @ 200mm centres UFH Circuit Return UFH Circuit Flow Installation Notes Pipe normally laid in floor at 200mm centres. Uses only 90° bends which reduces mechanical stress on tube.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 3 Issue 2 – FEB 07 Traditional Joists @ 400mm c/c Pipe fixed to plates from above.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 4 Issue 2 – FEB 07 I beam Joists @ 600mm c/c Pipe fixed to plates from below. Floor Covering (Typically Carpet / Vinyl) 22mm Chipboard Floor Deck (Screwed and Glued to Joist) TJI Joists at @ 600mm c/c (3 Plates / joist spacing) Heat Spreader Plates 15mm Speedfit Tube Mineral Wool or Rigid Foam Board Insulation to building regs.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 5 Issue 2 – FEB 07 TYP IC AL PIPE LAYO U T D ETAIL 2 "C O U N TER FLO W " PATTER N W ITH PE R IM ETER ZO N E. Perim eter Zone as part of m ain circuit. C loser pipe spacing of 100m m centres in strip m ax 1m w ide (BSEN 1264). U FH C ircuit R eturn U FH C ircuit Flow Installation N otes P ipe norm ally laid in floor at 200m m centres.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 6 Issue 2 – FEB 07 TYPICAL PIPE LAYOUT DETAIL 4 "SINGLE SERPENTINE / SINGLE MEANDER" PATTERN Installation Notes Pipe normally laid in floor at 200mm centres. Uses only 180° bends which requires min 175mm Higher output bending radius must be observed area to minimise mechanical stress on tube. Suitable for any shape / area.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.uk Technical Helpdesk 01895 425333 SHEET 8 Issue 2 – FEB 07 PIPE FIXING APPLICATIONS LONG PIPE STAPLE Edge Insulation Long Pipe Staples Floor Covering Screed Polythene Layer Insulation Damp Proof Membrane Sub Floor Used for standard UFH screeded Floors, good for large areas and all types of pipe pattern and irregular room shapes.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.
Horton Rd, West Drayton, Middlesex UBL 8JL Tel. 01895 449233 Fax. 01895 422086 www.speedfit.co.
COMBINED HOTWATER & PROGRAMMABLE ROOM THERMOSTAT PROGRAMMABLE ROOM THERMOSTAT (UFH) PROGRAMMABLE ROOM THERMOSTAT (RADIATOR /TOWELL RAD CIRCUIT) JG TOUCHPAD Notes See Note 3 Note 1 When using Zones 7 or 8 for controlling radiator circuits instead of UFH, the switch on the zone must be in the OFF position to prevent the UFH pump from operating This will result in fewer zones being available for UFH.
Notes Fuses Fuse 1 Power Supply 2.5A Slow Fuse ROOM STAT WITH SET BACK (USING SET BACK CHANNEL A) Note 1 ROOM STAT WITH SET BACK (USING SET BACK CHANNEL B) PROGRAMMABLE ROOM STAT Up to 2 Actuators can be connected to the same terminal. ie max 4 actuators per zone block. Note 2 Programmable Room Stats See Note 4 Battery powered (3 x AA). Requires only 2 wires to connect to wiring centre. OPTIONAL 2 PORT ZONE VALVE Programmable Room Stats can be used together with Set-Back Stats on the same system.
Underfloor Heating System Start-up & Pre-Commissioning Procedure Issue 2 - Jan 2005 With reference to British Standard EN 1264 and CIBSE Recommendations BS EN 1264 requires the leak test and initial heat up to be recorded and documented. This form is designed for this purpose and will also act as quality checking devise to assist in any future queries. A. Project Details Client Project / Area / Room B.
C. Initial Heating-Up Procedure of the Floor Heating System (EN 1264 Part 4, Para 4.4) The warm up procedure should be carried out using natural infiltration and after switching-off all other heating, all external doors and windows should be closed. 1. Ensure all heating circuits are filled with cold water and vent the system well using the standard radiator style vents on the JG Manifold. 2. Fully close the JG Pump pack valve by turning the hand wheel clockwise. 3.
Issue 2 - Jan 2005 Underfloor Heating System Final Commissioning Procedure With reference to British Standard EN 1264 and CIBSE Recommendations Customer Project No. Project Address Date System Checks - ( To be completed for each manifold ) Final commissioning is required to ensure that the system will meet the design specification and meet the requirements of the Building regulations.
Confirm the flow temperature on the pump pack is reading the design temperature. (The system should be given at least 2-hours to achieve if starting from cold) °C 8 This design temperature for each manifold can be found on the Design & Installation Data Sheet supplied by the JG Speedfit Design Office. Please call our technical helpline for copies of these details prior to installation.
With the system running, check with the aid of an info red thermometer that the average floor surface temperatures to not exceed 29°C, except in areas round the manifold or in areas noted on the design drawings which show the use of perimeter zones where pipes have smaller centres. These areas should not generally be greater that 35°C (BSEN1624). The average floor surface design temperatures can also be checked. Remember, results will depend on whether the specified floor covering is installed.
