Electric Mat Under Floor Heating Installation Alert

As a DIY home improvent project, I’m installing electric mat underfloor heating, whilst researching this I noted in the American market they sold a device called ‘Loudmouth‘ which warns of damage to to the heating cable during installation, rather then complete the floor only to find the heating cable was not working!loudmouth

In the UK underfloor heating manufactures sell a version of ‘Loudmouth’, the prices vary from £9.99 to £30.00,  I bought one online for £10.49 inc P & P after searching the internet in vain for a schematic in order to build one. (Damage-Sensor-Instructions).

As I’m installing more than one mat at the same time in different areas, I thought I’d simulate the one I bought and make a quick blog.

The parts were from eBay apart from those I has in the workshop, total cost £5.61:

  • 4.5v (3 x AA) battery box with integral switch –  £1.84
  • S8050 Transistors (Pk 5) or J3Y for SMD – £0.99
  • 3v Buzzer (Pk 2) – 2.38
  • Resistors, LED, Veroboard already had.
UFH
Completed home made unit
Alerter Schematic

schematic

All the parts fit neatly inside a battery box in the space left by the lack of one of the AA batteries, the unit works on 3v, so only two batteries are needed.

veroboard

How To Use

Before unboxing the underfloor heating mat, measure and record the mats element resistance and resistance to the sheath, if this meets with the manufactures instructions, the alert unit can be connected after the mat is laid out.

Turning on, the LED will light and the buzzer will sound, the LED stays permanently lit, this acts as a confidence check that the unit has power.

Connecting the Brown and Blue wires together will silence the buzzer, touching the Green/Yellow wire to the connected Brown and Blue wires will cause the buzzer to sound.

In use, the Brown, Blue and Green/Yellow wires will be connected to the underfloor heating mat cold lead cable wires, the heating element wires are a continuous circuit, damaging the cable will  break the circuit  causing the buzzer to sound and alerting you to stop and check and repair the damage before progressing. The element wires are contained within an earthed sheath, the Green/Yellow monitors the sheath for shorts circuits to the elements, and will again alert if damage is detected.

Logic table for the alert to sound
  • Brown & Blue – Open Circuit
  • Green/Yellow, Brown & Blue – Short Circuit
  • Green/Yellow & Brown – Short Circuit
  • Green/Yellow & Blue –  Short Circuit

Sonoff to Homebase Air Conditioning Unit – 636212

I’ve had a Homebase portable air conditioning unit (Model 636212) for ages, the unit removes 9000BTU of heat and is ideal for my home office, especially with the hot weather we are experiencing at the moment (May, June July 2018).

Homebase AC

I have a number of Sonoff devices so I thought I’d add remote control to the air conditioning unit, using a Jog Switch (SKU437888).

Jog Switch

The Homebase unit is turned on and off via a simple push to make button, wiring the Sonoff relay normally open contacts in parallel across the on/off switch allows a single pulse from the relay contacts to either start or stop the air conditioning unit.

on/off

The low voltage to the Sonoff is from the internal Power Supply Board, this gives out 17v DC which is well within the operating range of the device (7v -30v AD/DC).

unboxed

The picture above shows the unboxed module fixed for testing,  total cost was £6.50 and took about 30 minutes, what makes this more impressive is that the EWeLink App allows ‘Scenes’ to be setup with other Sonoff devices.

I have set the Server Cabinet Sonoff which operates the internal fan to trigger the air conditioning at 34°C, turning OFF when the temperature falls below 31°C.

Project Lightning Chatteris Roll Out Map

Chatteris Virgin Media Installation

Project Lightning Chatteris Roll Out Map:      

The Pin map shows the position of street cabinets, hovering over each pin will show its location and cabinet number, the see images of the cabinet, click the green circular cross below the map:

  • GREEN pins are completed VMSD1i Street Cabinets – either L3 or L4 (identifier stenciled on cabinet);
  • RED pins are not identified Street Cabinets;
  • PURPLE pins are Main Node locations (VMVH1);
  • BLUE pins are VMDD3I Double Cabinet;
  • RED CROSS pins denote photographs need updating.
TitleCategoryAddressDescription
AG0509 - Fairview Drive L4 - VMSD1i Cabinet 52.44495333227121,0.039513167066616006

VM Cabinet

VM Cabinet

L4 - Fairview Drive

AG0406 - Whitemill Road L4 - VMSD1i Cabinet 52.44638510793644, 0.04314203280955553

VM Cabinet

L4 - Whitemill Road

AG0508 - West Street L4 - VMSD1i Cabinet 52.44841713724248,0.04010308999568224

VM Cabinet

VM Cabinet

VM Cabinet

L4 - West Street

AG0404 - Meadow Close L4 - VMSD1i Cabinet 52.446432517572354,0.0444187643006444

VM Cabinet

VM Cabinet

L4 - Meadow Close

AG0507 - Fairway L4 - VMSD1i Cabinet 52.447268487182264,0.041440820787101984

VM Cabinet

L4 - Fairway

AG0510 - Fairway L4 - VMSD1i Cabinet 52.44553967010164,0.04184583434835076

VM Cab

VM Cabinet

L4 - Fairway

AG05 - Gibside Avenue L3 - VMSD1i Cabinet 52.44760034690668,0.04097545752301812

VM Cab

VM Cab

VM Cab

VM Cabinet

L3 - Gibside Avenue

I think is miss badged as AG0510 which is a duplicate of a cabinet on Fairway.

AG0506 - Harold Heading Close L4 - VMSD1i Cabinet 52.448121018332074,0.04368046531453729

VM Cabinet

VM Cabinet

L4 - Harold Heading Close

AF0511 - Boadicea Court L4 - VMSD1i Cabinet 52.45552500281696,0.05083794007077813

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Boadicea Court

 

AG0107? - Huntingdon Road Cabinet 52.45143126569499,0.03976444015279412

VM Cabinet

VM Cabinet

VM Cabinet

Huntingdon Road

AG0306 - Woodside L4 - VMSD1i Cabinet 52.45030417483517,0.04959607729688287

VM Cabinet

VM Cabinet

VM Cab

VM Cab

L4 - Woodside

AG0410 - Fairbairn Way L4 - VMSD1i Cabinet 52.44454485429467,0.04348466405645013

VM Cabinet

Vm Cabinet

VM Cabinet

L4 - Fairbairn Way

AG0411 - Fairbairn Way L4 - VMSD1i Cabinet 52.4433840712149,0.04481772193685174

VM Cabinet

5 way

toby

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Fairbairn Way

AF0508 - High Street L4 - VMSD1i Cabinet 52.45626155825046,0.048900735564529896

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - High Street

AG04 - London Road L3 - VMSD1i Cabinet 52.44649137084246,0.046309721656143665

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L3 - Cabinet - London Road

 

AG0412 - London Road L4 - VMSD1i Cabinet 52.4420203930249,0.044838571920990944

VM Cabinet

VM Cabinet

VM Cabinet

VM Cab

L4 - London Road

AF0510 - High Street L4 - VMSD1i Cabinet 52.455511339611334,0.049284291453659534

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - High Street

AG0204 - St Martins Close L4 - VMSD1i Cabinet 52.454489434738356,0.05618457798846066

VM Cabinet

VM Cabinet

vm cABINET

AG0204

VM Cabinet

L4 - St Martins Close

AF0509 - High Street L4 - VMSD1i Cabinet 52.45693961966269,0.04811415681615472

VM Cabinet

VM Cabinet

L4 - High Street

AG0105 - West Park Street L4 - VMSD1i Cabinet 52.45327917458896,0.04735509166494012

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

Compressor

VM Cabinet

26 Jan 18 fibre being blown to AG0108

VM Cabinet

VM Cabinet

L4 - West Park Street

AG0104 - Wimpole Street L4 - VMSD1i Cabinet 52.45311980469666,0.045556670520454645

VM Cabinet

AG0104

Wimpole Street

AG0112 & AG0113 - Burnsfield Street L4 - VMSD1i Cabinet 52.45488696489861,0.04322786349803209

VM Cabinets

AG0112 & AG0113 

L4 - Burnsfield Street

AG0112 is duplicated in Linden Drive

AG0113 is duplicated in Eden Crescent

AG0402 - Reed Close L4 - VMSD1i Cabinet 52.447672276763555,0.045292472932487726

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Reed Close

AG0403 - Blackthorn Close L4 - VMSD1i Cabinet 52.44743850429926, 0.04452536115422845

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Blackthorn Close

AG0405 - Mayfly Close L4 - VMSD1i Cabinet 52.44708375630174,0.043182915542274714

VM Cabinet

VM Cabinet

L4 - Mayfly Close

AG0206 - The Shrubbery L4 - VMSD1i Cabinet 52.45351605745769,0.052048349753022194

VM Cabinet

VM Cabinet

AG0206

L4 - The Shrubbery

AG02 - St Martins Road L3 - VMSD1i Cabinet 52.454264215856476,0.05503494758158922

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

 

L3 - St Martins Road

AG0203 & AG0213 - Birch Close L4 - VMDD3i Cabinet 52.45408337078587,0.05743751535192132

VM Cabinet

VM Cabinet

AG0202 - AG0213

Birch Close

AG0301 - Victoria Street L4 - VMSD1i Cabinet 52.452743852922225,0.047703778836876154

VM Cabinet

VM cabinet

VM Cabinet

L4 - Victoria Street

AF0502 - St Francis Drive L4 - VMSD1i Cabinet 52.45656719921685, 0.05488474387675524

VM Cabinet

VM Cabinet

L4 - St Francis Drive

AG0409 - Blackmill Road L4 - VMSD1i Cabinet 52.44510398114509,0.04354233155027032

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Blackmill Road

AG0207 - Church Walk L4 - VMSD1i Cabinet 52.45364519958683,0.05185750429518521

VM Cabinet

VM Cabinet

VM Cabinet

AG0207

L4 - Church Walk

AF0105? - Pound Road Cabinet 52.46163833844426,0.045072531793266535

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

Pound Road

AG0101 - Station Street L4 - VMSD1i Cabinet 52.45376054988989,0.0439473451115191

VM Cabinet

VM Cabinet

AG0101

Station Street

AG0304 - South Park Street L4 - VMSD1i Cabinet 52.45162974492057,0.04827716387808323

VM Cabinet

VM Cabinet

VM Cabinet

Microduct joints

L4 - South Park Street

AF0403 - Queensway L4 - VMSD1i Cabinet 52.457581943678406,0.06257126340642571

VM Cabinet

AF0403

L4 - Queensway

AG0408 - Marion Way L4 - VMSD1i Cabinet 52.44532573448797,0.04649211186915636

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Marian Way

AG0309 - Eastwood L4 - VMSD1i Cabinet 52.44674614533316,0.04998045042157173

VM Cabinet

VM Cabinet

VM Cabinet

VM Cab

L4 - Eastwood

AG0308 - Eastwood L4 - VMSD1i Cabinet 52.44824921842216,0.05029016174376011

VM Cabinet

VM Cabinet

VM Cabinet

VM Cab

L4 - Eastwood

AF0401 - New Road - Middle L4 - VMSD1i Cabinet 52.45731413104696,0.06130327004939318

VM Cabinet

VM Cabinet

AF0401

L4 - New Road

AF04 - New Road - Top L3 - VMSD1i Cabinet 52.45742573048203,0.06275036372244358

VM Cabinet

VM Cabinet

VM Cabinet

AF04

L3 - New Road

AG0210 - Cricketers Way L4 - VMSD1i Cabinet 52.44875722580955,0.05703282658942044

VM Cabinet

Cabinet

L4 - Cricketers Way

AG0211 - Cricketers Way L4 - VMSD1i Cabinet 52.44843979371819,0.05873972782865167

VM Cabinet

Cabinet

L4 - Cricketers Way

AG0407 - Eastbourne Road L4 - VMSD1i Cabinet 52.44584375064751,0.04618296632543206

VM Cabinet

3 feb 18

VM Cabinwt

L4 - Eastbourne Road

AG0401 - Whitemill Road L4 - VMSD1i Cabinet 52.447006333601905,0.046714735217392445

VM Cabinet

VM Cabinet

L4 - Whitemill Road

AG0503 - Fairway L4 - VMSD1i Cabinet 52.44943883820207,0.042991829104721546

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Fairway

AG0502 - Westbourne Road L4 - VMSD1i Cabinet 52.45006387762218,0.041541403625160456

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Westbourne Road

AG0501 - Westbourne Road L4 - VMSD1i Cabinet 52.44986065330227,0.04327309434302151

VM Cabinet

VM Cabinet

L4 - Westbourne Road

AG0102 - Haigh's Close L4 - VMSD1i Cabinet 52.4535684907657,0.042545890901237726

VM Cabinet

VM Cabinet

L4 - Haigh's Close

AG0305 - London Road L4 - VMSD1i Cabinet 52.45021753721562,0.04770914325490594

VM Cabinet

L4 - London Road

AG0113 - Eden Crecent L4 - VMSD1i Cabinet 52.45171801438014,0.04737057723104954

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Eden Crescent

AG0113 is duplicated in Burnsfield Street

AG0202 - The Elms L4 - VMSD1i Cabinet 52.45336662346431,0.05824083695188165

VM Cabinet

VM Cabinet

VM Cabinet

AG0202

The Elms

AG0201 - The Elms L4 - VMSD1i Cabinet 52.45384623557197,0.0606475118547678

AG0201

 The Elms

AF0304 Slade Way L4 - VMSD1i Cabinet 52.45833235687413,0.047755432315170765

VM Cabinet

Slade Way

AF0302 & AF0303 Slade Way L4 - VMSD1i Cabinet 52.4582424662961,0.04716802854090929

VM Cabinet

VM Cabinet

VM Cabinet

Slade Way

[caption id="attachment_3297" align="alignnone" width="225"]AF0302 Found open 20 July 2018[/caption]
AG0505 - Southampton Place L4 - VMSD1i Cabinet 52.4482370855346,0.0455003441311419

VM Cabinet

VM Cabinet

VM Cabinet

L4 - Southampton Place

AG0504 - Southampton Place L4 - VMSD1i Cabinet 52.44897189826159,0.045289790723472834

VM Cabinet

Southampton Place

AG0307 - Wood Street L4 - VMSD1i Cabinet 52.44892040455444,0.04923666128888726

VM Cab

L4 - Wood Street

AG0209 - Wenny Road L4 - VMSD1i Cabinet 52.449197489030865,0.054739213082939386

VM Cabinet

L4 - Wenny Road

AF0505 - Farriers Gate L4 - VMSD1i Cabinet 52.454876110793315,0.06032089004293084

L4 Farriers Gate

AF0501 - St Peters Drive L4 - VMSD1i Cabinet 52.45625338600299, 0.053717982955276966

VM

St Peters Drive

AF03 High Street L3 - VMSD1i Cabinet 52.45652937728379,0.04874849924817681

VM Cabinet

 

VM Cabinet

VM Cabinet AF03

L3 - High Street

AF0311 Wesley Drive L4 - VMSD1i Cabinet 52.45801015448342,0.05575979361310601

Wesley Drive

Highway termination box

AG03 - Eastwood L3 - VMSD1i Cabinet 52.44861879734661,0.050019866321235895

L3 Cab

L3 - Eastwood

AF0305 Lindsells Walk L4 - VMSD1i Cabinet 52.4572340448707,0.049254787154495716

VM Cabinet

VM Cabinet AF0305

Lindsells Walk

AG0212 - Wenny Estate L4 - VMSD1i Cabinet 52.447770362742745,0.055896586272865534

VM Cabinet

L4 - Wenny Estate

AG0103 - Clare Street L4 - VMSD1i Cabinet 52.45310018990083,0.04034245619550347

VM Cabinet

L4 - Clare Street

AF0406 - Green Park L4 - VMSD1i Cabinet 52.45603028306109,0.06079901475459337

AF0406

L4 - Green Park

AF0507 - New Road L4 - VMSD1i Cabinet 52.456626626320876,0.051002895925194025

 

AF0507

New Road

AF0301 Ravencroft L4 - VMSD1i Cabinet 52.45917055214363,0.046117252204567194

Ravenscroft

AF05 - New Road L3 - VMSD1i Cabinet 52.45672877843942,0.05324254045262933

AF05VM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New Road

AF0504 - Bridle Close L4 - VMSD1i Cabinet 52.45577262533811,0.058989173267036676

VM Cabinet

L4 - Bridle Close

AG0106 - Park Street L4 - VMSD1i Cabinet 52.45388010116374,0.049190414138138294

VM location

VM Cabinet

VM Cabinet

AG0106

AG0106

L4 - Park Street

AF0614 - The Hawthorns L4 - VMSD1i Cabinet 52.45679765437155,0.047277999110519886

VM Cab

L4 - The Hawthorns

AF0407 - Green Park L4 - VMSD1i Cabinet 52.456531241566196,0.06180484313517809

Af0407

L4 - Green Park

AF0503 - Bridle Close L4 - VMSD1i Cabinet 52.45572649964174,0.05767252296209335

VM Cabinet

VM Cabinet

L4 - Bridle Close

Work commenced 26 Oct 17 completed 3 Nov 17.

Stencilled 23 Jan 18.

Made live 26 Jan 18.

AF0404 - Newlands Road L4 - VMSD1i Cabinet 52.45853910450727,0.062362742610275745

AF0404

L4 - Newlands Road

AG0208 - Wenny Road L4 - VMSD1i Cabinet 52.451324427259976,0.05182970780879259

cabinet

L4 - Wenny Road

AG01 & AG0112 - Linden Drive L3 - VMSD1i Cabinet 52.45215644739025,0.044802320189774036

VM Cabinets

VM Cabinet

VM Cabinet

VM Cabinet

VM Cabinet

AG01

AG01 L2

L3 & L4 - Linden Drive

AG0112 is duplicated in Burnsfield Street

AF0307 Curlew Avenue L4 - VMSD1i Cabinet 52.458205335304854,0.05174257792532444

Curlew Avenue

AF0310 Augustus Way L4 - VMSD1i Cabinet 52.458938883645615,0.054393208120018244

Augustus Way

AG0303 - Wenny Road L4 - VMSD1i Cabinet 52.451867121936964,0.05137105006724596

VM Cabinet

L4 - Wenny Road

AF0506 - Saddlers Way L4 - VMSD1i Cabinet 52.45471765332056,0.057400959776714444

VM Cabinet

L4 - Saddlers Way

AG0111 - York Road L4 - VMSD1i Cabinet 52.45081441893827,0.04429270047694445

VM Cab

L4 - York Road

AF0306? - New Road Cabinet 52.45654776472326,0.04891881952062249

New Road

AG0205 - Juniper Drive L4 - VMSD1i Cabinet 52.4532697758677,0.05541110644116998

AG0205

Juniper Drive

AF0101 & AF0102 Doddington Road L4 - VMSD1i Cabinet 52.46805554397529,0.03911750391125679

Doddington Road

AF0103 Doddington Road L4 - VMSD1i Cabinet 52.465405812381725,0.04259088076651096

Doddington Road

AF0308 Mallard Close L4 - VMSD1i Cabinet 52.4582530897376,0.05069245118647814

Mallard Close

 

AF0402 - The Orchards L4 - VMSD1i Cabinet 52.457115549750924,0.057328236289322376

AF00402

L4 - The Orchards

AF0110 Latham Way L4 - VMSD1i Cabinet 52.457632839896824,0.043042791076004505

Latham Way

AF0109 Marritt Close L4 - VMSD1i Cabinet 52.45874631083253, 0.04325070418417454

Marritt Close

AF0111 Quaker Way L4 - VMSD1i Cabinet 52.45782779255462,0.04492976702749729

Quaker Way

AF0112 Ash Grove L4 - VMSD1i Cabinet 52.4576325845221,0.0467403419315815

Ash Grove

AF0602 Horsegate Gardens L4 - VMSD1i Cabinet 52.455337829300376,0.044648218899965286

VM Cabinet

L4 Horsegate Gardens

AF0603 Horsegate Gardens L4 - VMSD1i Cabinet 52.45536398103069,0.04503445699810982

VM Cabinet

Horsegate Gardens

AG0311 - Tithe Road L4 - VMSD1i Cabinet 52.443571448810765,0.048371292650699615

VM Cabinet

L4 - Tithe Road

AG0310 - Tithe Road L4 - VMSD1i Cabinet 52.444176160818074,0.04846768453717232

VM Cabinet

L4 - Tithe Road

AG0312 - Tithe Road L4 - VMSD1i Cabinet 52.44340029275607,0.04709162749350071

VM Cabinet

L4 - Tithe Road

AF0608 - Treeway L4 - VMSD1i Cabinet 52.45411051930238,0.042314864695072174

VM Cab

L4 - Treeway

AF0605 Station Street L4 - VMSD1i Cabinet 52.45433935279353,0.047861672937870026

VM Cabinet

Station Street

AF0408 - Green Park L4 - VMSD1i Cabinet 52.45596454715728,0.06386079825460911

AF0408

L4 - Green Park

AG0109 - Huntingdon Road L4 - VMSD1i Cabinet 52.4520640412153,0.04118833690881729

VM Cabinet

L4 - Huntingdon Road

AG0108 - Huntingdon Road L4 - VMSD1i Cabinet 52.4522078862328,0.04434261471033096

VM Cabinet

VM CabinetVM Cabinet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L4 - Huntingdon Road

AF0601 Horsegate Gardens L4 - VMSD1i Cabinet 52.455552661218405,0.047440314665436745

VM Cabinet

Horsegate Gardens

AF0206 - Gull Way L4 - VMSD1i Cabinet 52.46061546495731,0.048162080347537994

Gull Way

 

AF0607 Station Street L4 - VMSD1i Cabinet 52.453881684622154,0.04417095333337784

VM Cabinet

Station Street

AF0209 Drake Avenue L4 - VMSD1i Cabinet 52.460298922714486,0.0496611837297678

Drake Avenue

AF0104 Bridge Street L4 - VMSD1i Cabinet 52.461956071200554,0.04530527628958225

Bridge Street

AF0203 Lode Way L4 - VMSD1i Cabinet 52.4618248723383,0.04829992074519396

Lode Way

AF02 Lode Way L3 - VMSD1i Cabinet 52.46154868443245,0.04892755765467882

L3 - Lode Way

AF0204 Kingfisher Close L4 - VMSD1i Cabinet 52.46205739383792,0.05023517645895481

Kingfisher Close

AF0205 Lode Way L4 - VMSD1i Cabinet 52.461073573853504,0.049655819311738014

Lode Way

AF01 Angoods Lane L3 - VMSD1i Cabinet 52.46030219131336,0.04400172270834446

L3 - Angoods Lane

AF0208 Tern Gardens L4 - VMSD1i Cabinet 52.459815167410554,0.04806795157492161

Tern Gardens

 

AF0108 Angoods Lane L4 - VMSD1i Cabinet 52.45954014157026,0.04322249908000231

Angoods Lane

AF0106 Angoods Lane L4 - VMSD1i Cabinet 52.460512555781456, 0.04489619750529528

Angoods Lane

AF0107 Angoods Lane L4 - VMSD1i Cabinet 52.460576752749645,0.04488685168325901

Angoods lane

AF0202 Dock Road L4 - VMSD1i Cabinet 52.4618248723383,0.045861792750656605

Dock Road

AF0201 Bridge Street L4 - VMSD1i Cabinet 52.46119078155108,0.045134914107620716

Bridge Street

AF0207 Black Horse Lane L4 - VMSD1i Cabinet 52.46029356016901,0.045218062587082386

Background

The cabinet backs onto a Grade 2 listed house and a black one was requested as it matches the surrounds a lot better than a grey one.  A point to note is that the ground level in the house is lower than the pavement. The contractors started digging up in front of one of the windows put a grey cabinet and it was a foot above the bottom of the window and as the house is lower inside when you looked out the top of the cabinet was eye height. The owners asked if they could move it down the street more which they did but then backfield the hole they dug with hardcore they took out and left it. With have requested several times for last 2/3 months if it can be re-tarmac to stop water running into the house which is going to collect there.

12 Nov 17, ground under window not restored.

Black Horse Lane

AF0309 St Stephens Drive L4 - VMSD1i Cabinet 52.45916914763152,0.05403582472354174

VM Cabinet

VM Cabinet

St Stephens Drive

 

 

 

 

 

 

Stephen's Drive

AF0210 Gull Way L4 - VMSD1i Cabinet 52.45994218433571,0.04969332832843065

Gull Way

AF0211 Furrowfields Road L4 - VMSD1i Cabinet 52.4591189426775,0.04989990033209324

Furrowfields Road

AF0113 High Street L4 - VMSD1i Cabinet 52.45769979910717,0.04722867161035538

High Street

AF06 & AF0604 Station Street L3 - VMSD1i Cabinet 52.454221667146655,0.046456195414066315

L3 & L4 - Station Street

 

 

 

 

 

 

AG0302 - East Park Street L4 - VMSD1i Cabinet 52.45278326160457,0.05068335682153702

VM Cabinet

L4 - East Park Street

Area AG - VMVH1 Nodal Cabinet Eastwood VMVH1 Nodal Cabinet 52.44843322921627,0.049964357167482376

VMVH1 – 1800 W x 1700 H x 650 D Nodal Cabinet (Virtual Hub)1 per 3000 homes.

The Nodal cabinets are connected to L3 street cabinets.

I asked permission of the road workers before I took the picture, the cabinet was unlocked and open.

Cabinet in the locked open position 18 Nov 17

Eastwood

Area AF - VMVH1 Nodal Cabinet Furrowfields Road VMVH1 Nodal Cabinet 52.45850483958044, 0.04997299511160236

Work Commenced 14 May 17

Smaller cabinet is for electrical metering.

Nodal cabinet feeds L4 street cabinets

Furrowfields Road

AF0312 St Pauls Drive L4 - VMSD1i Cabinet 52.45786374914649,0.05437650717794895

Work commenced 28 Aug 17

St Pauls Drive

AF0313 St Pauls Drive L4 - VMSD1i Cabinet 52.45696809438717,0.054993415251374245

Work commenced 28 Aug 17

St Pauls Drive

Icons made by Smashicons from www.flaticon.com is licensed by CC 3.0 BY

 

Installing Boiler Condensate Runoff

I currently have a Vaillant Thermocompact 624 System boiler which was installed in 2002 and some of the parts are now obsolete, so its only a matter of time before it needs replacement.

All new boilers now have to reach an ERP (Energy Related Product) minimum efficiency of 92.5% and only condensing boilers can achieve this, it does this by recovering the latent heat within the exhaust flue gases, this causes the water component of the flue gasses to condense and require disposal.

The boiler condensate produced varies in quantity and is acidic, therefore, only plastic parts can be used within the drain system (no copper or cast iron pipes unless the condensate has been neutralized first).

My existing boiler has no need for a condensate drain, however, when this packs in, any new boiler will.

I have read that if the condensate drains runs outside into a gully or soak-away, that the external pipe unless lagged or trace heated can freeze in the winter, and if the condensate can’t run away freely, the boiler will lockout until the pipe is thawed out.

So, thats the backstory, fortunately for me, the boiler is in the garage and also a portion of a 11/2″ (40mm) drain pipe runs inside the garage, before going through the wall to connect into the soil stack, the drain pipe carries the waste water from the washing machine, dishwasher and utility sink.

darin pipe

The pipe used was 22.5mm plastic overflow pipe from the boiler to the drain pipe clamp, the picture below shows the capped boiler condensate pipe in advance of the installation.

capped condensate

Fitting this pipe without taking the garage apart was a ‘challenge’ and took ages!

wide angle

This pipe runs behind dado trunking where I used plastic cement to fix a 90 degree bend and ‘Tee’ with a capped stub so I can flush through if needed.

In this picture you can also see an earth clamp, this is fitted to the 15mm copper gas pipe  and is the main bonding conductor for the gas, unfortunatly it does not comply to BS7671 Electrical Regulations,  in so much as it is futher than 600mm from the point of entry and it is also installed after a branch, so I took the oppertunity to install a new clamp and 16mm2 main bonding conductor directly from the meters outgoing gas pipe to the consumer units earth bar, I could have used 10mm2 as I have a PME supply, but as I had the wire already, I made use of that.

tee

After doing the first drain I rechecked the pipe layout on a Vaillant EcoTech and it showed the condensate oulet on the other side of the boiler, so it was out with the drill again and fit another drain.

two pipe

This is the new gas main bonding conductor clamp fitted with the cable sealed after being routed of the enclosure, note the quality pipe soldering done by the British Gas Smartmeter man……Nice!

bonding

The additional uncapped drain below was a lot easier to fit as I removed the boilers isolator and frost stat to make more room.

left side

The drain has to have a fall of 43mm per meter, the pipe was taken to a 90 degree bend and then on to the drain pipe, the pipe is supported every 300mm.

trap

The  picture  shows a 75mm deep trap in the 22.5mm pipe, this then goes on to a McAlpine CONVALVE R28-NRV, this Non Return Valve will allow the flow from the boiler, but will restrict any back-flow from the drain pipe.

Installation of the NRV was very simple, I had to chisel the breeze block slightly so the clamp could fit without touching the wall, then drill a 15mm hole in the drain, debur the hole and fasten the 4 clamp screws and that’s it.

As the main drain pipe was at an angle and the condensate pipe came in vertically (the NVR will only work in this position), warming a small length of pipe and with an internal bending spring, I put a slight bend in the pipe, this was then cut to length and fitted between the pipe clamp and the NVR.

Once fully installed and all joints cemented, I ran a full bore water hose to check for leaks, once everything was checked, the exposed pipes were boxed in to stop any accidental damage (this pipe does form part of the boilers flue system when connected) and the garage was put back together again.

Not sure when my boiler will fail, but at least I’ve saved the plumber some time and effort and therefore I’ve saved some money in the long run.

MFJ 1786 Magnetic Loop Modification

mfj

I bought at used MFJ 1786X (240v version) from Tony G3RGQ, I have been after a magnetic loop for quite a while, so when the opportunity presented itself to buy one at a reasonable price, I went for it.

The 1786 covers from 30m through to 10m, looking on Youtube was a modification to increase coverage into the 40m band.

After looking at the video it was off to eBay:

  • K15U-1 47pF 10kV 8kvar Capacitors including delivery from Ukraine £13.57.
  • Vacuum Relay 10kV 3A including delivery from Poland £23.53.

Opening the case and looking at the butterfly capacitor, I located a way to securely mount the capacitors and relay.

butterfly

I had some left over copper sheet, so I cut a 25mm wide strip 100mm long and used this as the capacitor linking strap and mounting brackets, making sure I had a solid connection to one side off the butterfly capacitor.

caps

The relay was mounted to the opposite side of the butterfly capacitor using a similar strap to that on the capacitors. To avoid straining the glass relay switch connection, I used some RG213 braid to link the capacitors connection to the relay, I deliberately didn’t secure the base of the relay to the fibreglass insulating sheet, this is to make the relay ‘floating’ in an attempt to reduce the chances of relay breakage.

relay

I installed a ‘flywheel’ diode across the relay coil (coil voltage  27VDC) to protect the operating switch in the shack.

Once the loop case was refitted, the modification was tested and works fine, many thanks to the Youtube author for sharing his practical experience.

Update 1 June 18

I bought a offset pole and 9 x 9 bracket to mount the magloop on, the existing 6 x 6 bracket was too undersized and slightly in the wrong position, the new bracket was fixed with M10 sheild anchor rawlbolts.

The tricky bit was getting it mounted due to it being top heavy compounded by a cranked pole, the solution was to use a pully arrangment from the mast to take the weight to help get me up the ladder and also position the pole to put the ‘U’ bolts in 🙂

loop up

LED Emergency Light Kit

em kit

I saw a very similar discrete emergency light fitting recently and thought that would be a good idea over the stairs at home, looking on eBay I saw the above unit (MJ-LED-DZ09 by Zenergy) for £14.95 and bought one.

Prior to use, the instructions recommend charging the battery for no less than 24 hours before use as it comes discharged, this I did.

The LED light housing is really neat, it requires a 32mm hole (1 1/4″) drilling to accept the light body which is held in the hole by spring clips on either side, the electronics are in a low profile enclosure and this will easily pass through the 32mm hole.

Installation was very simple, I marked the center of the ceiling over the stairs, using a 32mm hole saw, checking that their wasn’t any joists or obstructions in the loft  above the ceiling before drilling.

To stop plasterboard dust going everywhere whilst drilling the hole, I used a plastic fast food container as a ‘dust catcher’.

To make this, I cut a hole in the container so that the hole saw shaft passed through the container into the chuck, this allowed me to hold the container steady whilst drilling the hole at slow speed so that all the dust was trapped in the container.

After pushing the electronics enclosure through the hole, I used decorators caulk around the inside lip of the LED light, before pushing the light into the hole, the reason for the caulk was to form a decent seal to stop any draft marks appearing around the fitting at a later date.

off

In the loft, I connected the emergency light 230v power to the upstairs lighting circuit (after isolating the supply!), when the power was turned on, the battery was then plugged into the unit ready for testing.

With the power on, a tiny green healthy LED is lit, when the power is off, the green LED goes out straight away, and within 2 seconds, the main white escape LED lights, I assume the delay is to avoid and short duration blips bringing on the main LED.

The light from the unit is very bright and cool white is colour.

lit

Quick Details from Web Site
LED –   1 X 3W LED
Material-     Poly Carbonate for conversion body & aluminum LED body
Mounted –    ceiling mounted
Life time of battery –    4 years
Light Output –       (Emergency)    170lm
Lamp protection –   over charge and discharge protection
LED indicator –   Green indicator
Charging current  –  90mA
Convert voltage-    155V  AC
Discharging current –   500mA
Discharge duration –   3 Hours
Spec of battery-    3.6V  2200mAh NI-MH Batery
Packing –   38.5 x 35x 32.5cm     50pc/ctn
IP Rating-    IP20

NO.:MJ-LED-DZ09

Application:

The series use for emergency lighting. The unit will provide 3W maximum output power at emergency mode.They are designed to be highly efficient and highly reliable, and with short-circuit protection; overcharge protection;over discharge protection and over temperature protection.

Important information for the installion:

The unit uses dangerous mains voltage,(220-240Vac, the converter will be with the emergency mode when the mains voltage is less than 65% of rated voltage) it should be installed by a qualified electricians only according to European safety standard or relevant nation regulations.

Connect the LED spotlight to the emergency LED converter with correct polarity according to the schematic drawing.

Connect the unit to AC power only after the wiring completed between emergency converter, battery and spotlight.

If the emergency converter is used for purposes other than originally intended or it is connected in the wrong way, no liability can be taken over for possible damages.

 Specifications:

Model Main power supply Main power cut off
MJ-LED-DZ09 LED Spotlight off, green indicator on LED spotlight on, green indicator off

I’m really impressed with the product, and its another safety related home improvement which we hope is never needed in anger.

Update 6 June 18

Installed a Emergency light test switch rather than turning the lighting power off, these are just under £3.00 and include the ‘fish tail’ key.

Em Switch

The switched fused connection unit is for a cupboard light and Hive light fitting which are fed with 0.75mm cable, the emergency lighting is fed with 1.5mm cable and is not fed from the fused side of the fused connection unit.

PCB Etch Tank

I decided to build a PCB etch tank for some up and coming projects, so this is a quick blog on how I did it.

etch tank

For ease I bought four pieces of 5mm thick clear Acrylic (Perspex), each piece pre cut to A4 size (210mm x 297mm) off eBay for £5.41 per sheet, the height of 297mm is also ideal to accommodate the immersed heater.

You only actually need three sheets, from this two full sheets are each side with the third sheet requiring cutting to form the sides of the tank, whats left over is the base, the idea is minimal cuts and make best use of factory cut edges to cement forming a leak tight joint.

I used a tenon saw to cut a 40mm strip the length of the sheet (40mm x 297mm), once cut, I turned the sheet round and marked 40mm in from the remaining factory cut edge, and cut the second wall strip.

The piece left over, I used as the base of the tank after shaping it using a jig-saw with an Acrylic cutting blade, I found that better results for straight cuts were with the tenon saw, rather than the jig-saw even though I used a straight edge.

Once the base was shaped I flame polished the edge.

With all the pieces  cut, the edges were rubbed with 1200 grip paper and cleaned with IPA, before being cemented.

The cement used was Model X Pro plastic weld, 50ml costing £6.69 from eBay, this came with an syringe applicator which was invaluable for accurate use.

I used butt joints ensuring factory cut edges only are cemented to the flat surface of the sheets, once the parts are checked for alignment, the plastic weld which is like water, is applied and ‘wicks’ along the joint giving a really strong joint, reaching full strength in 24 hours.

I did make a couple of brackets for the heater and a lid for the tank out of the remaining Acrylic sheet, but this was not absolutely necessary.

sideUsing the dimensions above, you should end up with a tank which is 45mm deep, 215mm wide and 297mm high, to cover the heating elements ‘water line’ will take 1.3 litres of etchant and will cope with 1.5 litres.

From a local aquatics shop I bought 6mm air line, air pump and bubble wall to agitate the solution, the heater is a 300W 230v EPH-20 Kinsten Etchant version from eBay and was quite expensive at £16.53,  this has adjustable higher temperature settings than normal fish tank heaters (33°C to 55°C), the tank is set for 40°C.

ready

Exposed photo resist board ready for immersion in Ferric Chloride to remove the unprotected copper.

Central Heating Inhibitor Testing

I recenly refilled my central heating system after completely draining down to install an automatic bypass valve and then a partial drain down to install a Magnaclean filter a bit later on, when the system was refilled I used Fernox F1 inhibitor (£18.99 per 500ml), as I didn’t know the volume of water in the system to meet the required minimum of 5% inhibitor per 100 litres of system water, and to be on the safe side, I used two bottles of Fernox, as you can not overdose the system, but this is wasteful and not to mention expensive.

In order to use the correct amount of inhibitor, I needed to find the volume of water and ‘spend to save’, so I bought a couple of inhibitor test kits, a Fernox Protector Test Kit for £23.46 and Sentinel x100 quick test for £4.99.

kits

So, why did I buy two test kits!

When the system was completely refilled I used Fernox F1, a few months later I decided to install the Magnaclean and needed some pipe fittings and inhibitor to top up the system resulting from the partial drain down, however, the merchant didn’t sell Fernox F1 only Sentinel x100, so I bought that.

Reading on a plumbing forum their was a suggestion that it was not a good idea to mix different manufactures inhibitor in the same system, I read this after I had already bought the x100 quick test kit off eBay.

I was refunded the cost of the x100 which was good of Plumb-It in Huntingdon, and bought Fernox F1 from another merchant and I also decided to buy as a long term investment a Fernox test kit.

As I now had two test kits, I thought I would see if the Sentinel x100 quick test would give an accurate indication of inhibitor strength of Fernox F1 as the x100 quick test kit will do two concentration tests for £4.99, rather than spend over £23, having said that, I can do 25 tests with the Fernox test kit, so it is cheaper overall, but as a DIY’r getting the x100 kit is more cost effective.

x100

Reading the hazard data sheets for x100 and Fernox, they contained the same chemicals and concentrations, Fernox F1 had one further component:

  • (Fernox & Sentinel) <2.5% Benzotriazole
  • (Fernox & Sentinel) 5% Sodium Molydate
  • (Fernox) Nitrilotriethanol

So I decided to test if the X100 kit would work in practice.

test1

Running some system water off using the vent on the Magnaclean, you fill the container to 1cm from the top and add two tablets, shake and then wait 10 minutes, the colour of the solution should then be compared with back of the x100 packet, if its the same yellow colour or deeper, its fine.

test2

Using the x100 test, the result appears my system water is of an adequate concentration.

The Fernox Inhibitor Test Kit was slightly more involved than the x100 test, but not difficult, the first thing to do was establish as baseline for your cold water which was used to fill the heating system with water.

f1

Filling the supplied container with 10ml of tap water, you add drops of the reagent and count the number of drops needed to change the solution from Blue to Orange.

blue
This is after one drop.

4 drops

To change my tap water from Blue to Orange took four (4) drops of reagent, shaking the bottle after each drop, this number will be subtracted from the drops total in the next part.

Washing out the container, I refilled this with central heating system water to 10ml as before.

f2

1 drop

One drop of reagent added.

9
Nine drops of reagent added.

nearly

Very nearly there.

39

After 39 drops, the solution changed to Orange, subtracting the baseline tap water 4 drops, means that 35 drops were needed overall, referring to the kit instruction, for Protector F1 at the recommended dose of 500ml for 100L of system water, a minimum of 9 drops of reagent is required to change from Blue to Orange, obviously, I’m well overdosed!!

This got me thinking of how I can determine how much water is in the heating system, the Fernox web site suggests that in a domestic system, volume can be estimated by counting the number of single panel radiators in a property and multiplying by ten. remembering to count double panel radiators as two single panels.

I have 13 radiators with 3 of these being doubles, therefore, using the formula above, this would be 16 x 10 = 160 Litres of System Water needing  just over 1.5 x 500ml bottles of Fernox F1.

To cross check this approximate value, I went the manufactures site for my radiators and found the data sheets, checking the sizes of my radiators against the Kw output of each one, this equaled a total of 10.87Kw, allowing that 1Kw requires 11 liters of water and adding a overhead of 25 litres for water in the boiler, indirect heating coil and system pipework, it worked out to 144.5 Litres of System Water needing just under 1.5 x 500ml bottles of Fernox F1.

The next time the system is completely drained I’ll use one 500ml bottle and then test to confirm if indeed it does need more than one bottle, once established I’ll sell the test kit on eBay.

Magnaclean Pro 2 Installation

 

MAGNA

Today (21 April 18), I decided to install a Magnaclean Pro 2 in my heating system which has a system boiler with hot water and central heating controlled using the ‘S’ plan design.

Magnaclean removes suspended solids (ferrous (Magnatite) and non ferrous) from the circulating water and traps them within the canister, this is then cleaned out at regular intervals.

The removal of these particulates will improve the longevity of the boiler and its parts, although my system water has been previously treated with inhibitor and ran clear during the drain down to fit this, these devices are installed when boilers are replaced in compliance with Building Regulations Part L , so I thought I’d bring it up to code.

The instructions specify that the Magnaclean is installed on the return to the boiler after the last radiator and before any system filling/pressurisation point, next to the boiler was a good location for me.

before

In order to make room for the Magnaclean to fit, the cold water filling loop needed to be raised.

drain

With the boiler power isolated, the case was removed to give more working room, a hoselok fitting was screwed onto the cold fill line and a hose ran to drain, I then isolated at the stopcock and drain the line ready for cutting the 15mm copper pipe and raising the whole assembly.

lifted

Cold fill raised and leak tested, the maximum height was governed by the length of the braided filling loop, the 22mm copper pipe nearest the boiler is the return and this has two marks 150mm apart indicating where the cuts need to be made.

I used the hoselok fitting on the return filling valve, and drained the heating system water opening a couple of upstairs radiators to break any vacuum.

pipe slice

Using a 22mm pipe slice it was fairly easy to cut the pipe, due to the restricted working space, I had to use pump pliers to grip and turn the pipe slice through some of its travel.

magnaclean base

The Magnaclean has a slip socket allowing the unit to slide over the pipe, then once engaged, the unit is lifted slightly so the inlet pipe engages allowing a nut and olive compression fitting to be made, I used jointing compound on both top and bottom olives before tightening.

The isolation valves are on the left, rather than the right, I had to use this orientation so I could easily access the isolation valves, I was going to use obtuse street elbows to form  a tight set in the return pipe, lifting the  Magnaclean clear of the flow pipe so I could operate the isolation valves, but this was way too much work for no real gain, especially as effective fluid flow is a function of the Magnaclean canister and not the valve orientation.

finished

Once the canister was pushed into place and the lid was tight, I closed the radiator vents and started to fill the system watching for leaks, the filling system pressure reducing valve is set for 1.5bar, so this was left open as I went round venting the upstairs radiators.

With the first round of venting done, I vented the Magnaclean and boilers circulation pump before turning the boiler on to heat.

This was followed by more venting until the majority of the air subsided, I isolated the Magnaclean and drained it so I could add 500ml of Fernox F1 inhibitor to the system, using the canister as a dosing pot.

As I only partially drained the system, (downstairs radiators are below the boiler so I only drained upstairs), 500ml should be sufficient to top up protection.

The installation went well with no leaks, and once the Magnaclean was proved to be ok, I registered the device online for the 10 year warranty.

I’ll post pictures in a few weeks of the Magnaclean magnet to see what it has picked up.

5 May 18 – Checked the Magnaclean and this is what it had caught:

magnatite

My Vaillant Thermocompact system is approximatly 14 years old, has 13 radiators piped in 10mm.  I’m very happy with the low level of magnatite retained and nothing was trapped within the lower filter housing, I’ll check this agian in a years time, but so far so good 🙂

General information and status updates.

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