Warmup Metro - Underfloor heating

Metro - Underfloor heating Warmup - Free user manual and instructions

Find the device manual for free Metro Warmup in PDF.

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Product Type Programmable Thermostat for Underfloor Heating
Compatible Systems Electric underfloor heating mats and cables
Display Type LCD touchscreen
Dimensions (H x W x D) 86 x 86 x 34 mm
Weight 160 g
Power Supply 230 V ~ 50 Hz
Maximum Load 16 A (3600 W)
Temperature Range Ambient: 5-40 °C, Floor: 5-50 °C
Programming 7-day, 4 time periods per day
Sensor Type Built-in NTC floor sensor
Protection Class IP20
Energy Saving Features Adaptive start, open window detection
Mounting Wall flush mounting box (55 mm deep)
Certifications CE, RoHS
Warranty 2 years
Maintenance Clean with a soft damp cloth; do not use solvents
Safety Features Overheat protection, child lock

Frequently Asked Questions - Metro Warmup

How do I install the Warmup Metro thermostat?
Turn off the power at the main circuit breaker. Connect the wiring according to the diagram provided in the manual. Use a flush-mounting box and attach the thermostat to the wall. Ensure the floor sensor is properly placed.
Can I use the Metro with any underfloor heating system?
The Warmup Metro is designed for electric underfloor heating systems. For compatibility with specific mats or cables, check the load rating.
How do I program the weekly schedule?
Press the menu button, select 'Schedule', and set desired temperatures for each time period (Morning, Day, Evening, Night). Repeat for each day of the week.
What does the 'Adaptive Start' feature do?
Adaptive Start calculates when to turn on the heating to reach the set temperature at the programmed time, optimizing energy use.
My thermostat shows an error code 'E1'. What does it mean?
Error code 'E1' indicates a faulty floor sensor. Check the sensor connection and replace if necessary.
How do I reset the thermostat to factory settings?
Go to Settings > Advanced > Factory Reset. Confirm the reset. The thermostat will restart with default settings.
Can I control the thermostat remotely?
No, the Warmup Metro does not have Wi-Fi connectivity. It is a standalone programmable thermostat.
What is the maximum floor temperature I can set?
The maximum floor temperature limit is 50 °C to protect the floor covering and ensure safety.
How do I clean the thermostat?
Wipe the surface with a soft, slightly damp cloth. Do not use abrasive cleaners or spray liquids directly on the device.
Is the thermostat covered by warranty?
Yes, the Warmup Metro comes with a 2-year warranty against manufacturing defects. For claims, contact your installer or Warmup support.

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Download the instructions for your Underfloor heating in PDF format for free! Find your manual Metro - Warmup and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. Metro by Warmup.

USER MANUAL Metro Warmup

Warmup Metro

Installation manual

Warmup®

The world's best-selling floor heating brand™

Over 2.7 million installations in more than 72 countries

Experience MyHeating™

08:44 App Store WARMUP SMART Demo mode SmartGeo™ Active SmartGeo™ has calculated the most efficient temperature so this location is warm when needed and always running efficiently. Daily usage 130 kWh £14.30 Bathroom Targeting 18.3° 25.0 °C Air Living Room Targeting 18.3° 25.0 °C Air

Warmup Metro - Experience MyHeating™ - 2

SmartGeo™

Unique SmartGeo™ automatically turns down the heating when you're out.

Warmup Metro - SmartGeo™ - 1

Easy to use

Simple and secure setup using WiFi, with 24/7 technical support.

Warmup Metro - Easy to use - 1

AutoSwitch™

Always on the best tariff, automatically. Reduce energy bills by over £400

Download now for iOS and Android

Warmup Metro - Download now for iOS and Android - 1

Warmup Metro - Download now for iOS and Android - 2

Warmup Metro - Download now for iOS and Android - 3

Warmup Metro - Download now for iOS and Android - 4

6iE OB WiFi Thermostat
Washup 21.5 24:50:00 ≡ 17°

Installation summary 4

Safety information 6

Components available from Warmup 7

Typical floor build-up 8

Recommended subfloor - All Floor Finishes 8

Step 1 - Subfloor considerations ...... 9

Step 2 - Subfloor preparation ....10

Step 3 - Lay the Metro rail 11

Step 4 - Lay the pipe....12

Step 5 - Lay the screed layer 16

Step 6 - Floor covering....19

Testing information....20

Troubleshooting 21

Technical specifications 22

System performance....23

Warranty 26

Your Warmup ^® underfloor heating system has been designed so that installation is quick and straight forward, but it is important that the instructions in this manual are followed to ensure that your underfloor heating system performs correctly. Please ensure that you have the components and working drawings necessary for this system before you begin installation.

Warmup plc accepts no liability, expressed or implied, for any loss or consequential damage suffered as a result of installations which in any way contravene the instructions that follow.

It is important that before, during and after installation that all requirements are met and understood. If the instructions are followed, you should have no problems. If you require help at any stage, please contact our helpline.

You may also find a copy of this manual, wiring instructions and other helpful information on our website

www.warmup.co.uk

Please also read the full instructions that follow this section.

1 SR2 2 m < 5 mm

- The subfloor must be clean, level, smooth, dry, frost-free, solid, suitably weight-bearing and dimensionally stable.

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natural_image Interior view of a room with blue and white walls, featuring horizontal white lines on the floor (no text or symbols visible)

- Lay a damp proof membrane over the subfloor to prevent water ingress. - Install perimeter strip around the perimeter of the room to allow for differential movement between finished floor level and walls.

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natural_image Interior view of a room with blue and gray flooring, no visible text or symbols

- Lay insulation board over the membrane. Insulation should be chosen and installed in line with building regulations.

- Lay a vapour control layer over the insulation to prevent water ingress.

4 300mm 300mm 1m

- Lay the Metro rail across the floor, perpendicular to the intended pipe runs - The first rail must be placed 300mm from the wall and the 2nd 300mm from the 1st. Then, space the rails at 1m centres ensuring the pipe slots are aligned.

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natural_image Repeating pattern of white and black grid lines on a textured metallic surface, no text or symbols visible

• Install the pipe in line with the projects working drawings. It is recommended the pipe is installed using a double meander pattern as this provides a more even surface temperature and higher heat output than a single meander pattern.

• Install the pipe at the necessary spacing, alternating the first run between 3 times and 1 times the design pipe spacing, before working back to the manifold location securing into the Metro rail

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natural_image Close-up of two white metal rods on a textured surface, no visible text or symbols

• Install the floor sensor centrally between the two closest parallel runs of pipe.

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natural_image Industrial piping system with pressure gauge and metal components, alongside a blue tool (no visible text or symbols)

• Measure and cut the pipe so that it reaches both the flow and return ports on the manifold.

DO NOT tape over the sensor tip. It must be fully embedded within screed being laid over.

• Refer to the manifold manual for detailed information on mounting, pressure testing and commissioning.

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natural_image Close-up of black and white cables with white tubes, placed on Earth's surface (no text or symbols visible)

- Use Warmup pipe bend supports to hold the flow and return pipe at a 90° angle as it exits the floor towards the manifold.

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natural_image 3D architectural rendering of a road intersection with visible railings and structural elements (no text or symbols)

- Lay your chosen screed directly over the heating system in accordance with manufacturer instructions, building regulations and standards taking care not to damage the pipe.

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natural_image Interior corner of a room with tiled floor and wall, no text or symbols visible

- Lay your chosen floor covering once the screed layer has cured and dried, in accordance with floor manufacturers instructions.

18.0 2000

• Install your Warmup thermostat referring to their installation instructions. The system must be connected to and controlled with a thermostat and sensor.

Perform a site inspection. You will need to confirm that all measurements and other requirements on site match your working drawings. Ensure that all areas are correctly prepared, dry and protected from weather.
i Inspect the site for possible hazards that could damage the Warmup pipe, such as nails, staples, materials or tools.
Use a pipe cutter designed for plastic pipe ensuring that there are no burrs on the pipe ends. It is important to achieve a clean cut.
The installation of the system must comply current edition of building regulations.
Do not pull pipe from the coil while it is sitting flat. It must be unwound from the coil, rotating the coil as the pipe is pulled from the inside.
Do not force the pipe into bends. It is easier to lay the pipe with a large radius and then gently pull the pipe to the required bend. The minimum bending radius is 5 times the diameter of the pipe.
Do not kink the pipe. Excessive bending of the pipe can cause it to kink, where this occurs flow may be obstructed or reduced. Kinked pipe must be repaired or replaced. To repair a kink, straighten the pipe and simply heat the area with a hot air gun until the kink disappears.
i Ensure the subfloor is prepared to an SR2 standard. The subfloor must be clean, level, smooth, dry, frost-free, solid, suitably weight-bearing and dimensionally stable.
i Screed layers used over the Warmup Metro should be chosen and installed in line with building regulations and standards.
i Install the floor sensor centrally between the two closest parallel runs of pipe and away from other heat sources such as hot water pipes, lighting fixtures, chimneys etc.
Before installing the floor finish, its suitability for use with underfloor heating and its maximum operating temperature should be checked against required operating conditions. Ensure the heat output of the floor meets your requirements.
i Ensure adhesives, grouts, glues and screeds used are compatible with underfloor heating.
i Underfloor heating performs the most efficiently with conductive, low resistance floor finishes such as stone and tiles. Consideration should be given to the thermal resistance and temperature limits of the chosen floor covering and its impact on the system heat output
It is recommended that all furniture installed over underfloor heating has feet, maintaining a minimum 50 mm ventilated space above the floor to allow heat flow into the room.
DO NOT switch on the heating system until the screed layer has fully cured.
DO NOT use metal staples to secure the pipe to the subfloor. Only use staples supplied with the product or an equivalent specification.

Product Code Description

WHS-MT-RAIL01 Metro rail, 1m
WHS-CL-T40WHS-CL-T60Warmup clips, 40mm/60mm
WHS-CL-FIXER Fixing gun
WHS-P-PERT-xxxx = length: 25, 50, 60, 70, 80, 90, 100, 110, 120, 300mPE-RT Pipe- 16mm x 2mm
WHS-P-BEND Pipe bend supports
WHS-CL-CONDUIT25mm x 50mPipe conduit
WHS-X-EDGE50 Warmup perimeter strip
WHS-P-DECOILER Pipe decoiler
WHS-X-POL1200WHS-X-POL500Polythene DPM; 1200/500 gauge
WHS-MT-B0xxyyWHS-MT-B0xxyy+xx = kpa: 70 / 100yy = thicknesses: 25, 50, 70, 100mm+ = 0.030W/mKEPS Insulation
WHS-MT-INSxxx = thicknesses:25, 30, 40, 50, 60, 70, 75, 80, 90, 100mmPIR Insulation

Additional components that may be required as part of your Warmup heating installation:

Manifold, mixing unit, actuators, valves and euroconus connectors
Wiring centre
Warmup thermostats
Electrical trunking/conduit
Digital multi-meter required for testing the resistance of the sensor
Electrical tape to secure the sensor

Screed

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The concrete subfloor must be clean, level, solid, structurally sound and dimensionally stable. Ensure the subfloor is prepared to an SR2 standard (SR2 - the maximum permissible departure over a 2 m straight is 5 mm).

If necessary an appropriate blinding layer should be applied.

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Any materials on or within the subfloor must be suitable for supporting underfloor heating systems. If using temperature sensitive materials beneath the heating cable, such as damp proofing or tanking systems, contact the manufacturer for advice.

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Where tiles are to be used, ensure that the subfloor meets the local tiling standard requirements.

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Do not commence installation without ensuring that the resulting floor construction will meet the requirements of the floors intended use and its finish.

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natural_image Interior corner of a room with a white horizontal bar and measurement tape, no visible text or symbols
  • The subfloor must be clean, solid, structurally sound and dimensionally stable. Ensure the subfloor is prepared to an SR2 standard (SR2 - the maximum permissible departure over a 2 m straight edge is 5 mm).
    • If necessary a blinding layer should be applied.

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natural_image Interior view of a room with horizontal white lines on the floor and dark walls, no visible text or symbols

- Lay a damp proof membrane over the subfloor to prevent water ingress.

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natural_image Interior view of a room with blue walls and tiled floor, no visible text or symbols

• Install perimeter strip around the perimeter of the room to allow for differential movement between finished floor level and walls.
- Tape the perimeter strip to the wall to hold in position.

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natural_image Interior corner of a room with blue horizontal bars and gray walls, no visible text or symbols
  • Lay insulation board over the membrane referring to manufacturer instructions and in line with building regulations
  • Ensure the insulation board is pressed against the perimeter strip.

i Ensure the perimeter strip is installed with the integrated polyethylene skirt facing out from the wall.

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natural_image Interior view of a room with blue and gray flooring, no visible text or symbols

- Lay a vapour control layer over the insulation to prevent moisture ingress.

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natural_image Interior corner of a room with blue-tinted ceiling and textured floor (no visible text or symbols)

- Fold the polyethylene skirt over the vapour control layer and tape into position.

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natural_image Two black plastic components with orange and yellow elements, each showing a green directional arrow (no text or symbols)

- The cliprail has an integrated clip to connect rails together.

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natural_image Close-up of a yellow and black mechanical component with serrated edges (no text or symbols visible)

- Secure the rail to the floor using the adhesive back on the reverse of the rail.

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natural_image Close-up of a mechanical component with serrated edges and a green arrow indicating direction (no visible text or symbols)

• The rails can also be stapled to the insulation layer for added stability

4 300mm 300mm 1m

- Lay the Metro rail across the floor, perpendicular to the intended pipe runs

- The first rail must be placed 300mm from the wall and the 2nd 300mm from the 1st. Then, space the rails at 1m centres ensuring the pipe slots are aligned.

If the project has been supplied with a set of working drawings, follow the provided pipe layout. Ensure each circuits details are recorded in the commissioning log provided in the Warmup manifolds installation manual.

1

- Plan the circuit layout ensuring that the flow and return pipes can connect from the manifold to their respective heated area without crossing each other.

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natural_image Close-up of a metal tool applying white paint on a dark textured surface, with blue trim and a white stripe visible (no text or symbols)

- Before installing the pipework, sweep the floor to clear any debris.

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natural_image Industrial piping system with pressure gauge and multiple cylindrical tanks (no visible text or labels)

- Ensure there is excess flow and return pipe at the manifold location which can be cut later after the pipe has been laid.

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natural_image Industrial piping system with multiple black and white pipes mounted on a metal frame, no visible text or symbols

- Attach pipe bend supports to hold the pipe at a 90^ angle as it enters the floor. Position the support so that the pipe rises straight to the manifold.

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Feed pipes normally go through doorways but to minimise congestion, pipes can be fed through walls. Ensure holes drilled in the wall are below floor level and the pipe is protected with conduit.

Beginning from the manifold location, following the projects working drawings, begin laying the pipe, maintaining a gap of half the design pipe spacing around the perimeter of the room.

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natural_image Interior view of a tiled floor with white insulation and mesh grid pattern, inset shows a coiled cable (no text or symbols)
  • It is recommended that a double meander pattern can be used, as this will provide a more even surface temperature and higher heat output than a single meander pattern.
  • The pipe should be laid referring to the working drawings, alternating the first run between 3 times and 1 times the design pipe spacing, before working back to the manifold location, securing into the Metro rail.
  • For the pipe bends, secure the pipe to the insulation layer using Warmup clips at the beginning, middle and end of each bend.

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natural_image Interior view of a solar panel array with coiled white insulation strips on a reflective surface, inset shows a flexible wire wrapped around it (no text or symbols visible)
  • If using the single meander method, ensure the pipe installed against the external walls is supplied with the hottest (supply) water. Meander up and down the floor area at your designed pipe spacing, securing into the Metro rail and feed the pipe back towards the manifold.
  • For the pipe bends, secure the pipe to the insulation layer using Warmup clips at the beginning, middle and end of each bend.

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natural_image Industrial piping system mounted on a wall, with black and white pipes attached to a tiled floor (no visible text or symbols)

• Install pipe conduit or lagging over the service pipes as this will insulate the pipes and alleviate any hotspots.

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natural_image Industrial piping system with pressure gauge and multiple valves, alongside a pair of pliers (no visible text or labels)

• Measure and cut the pipe so that it reaches both the flow and return ports on the manifold.

• Refer to the manifold manual for detailed information on mounting, pressure testing and commissioning.

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natural_image Close-up of white cylindrical objects with rectangular attachments on a textured surface (no text or symbols visible)

- Install the sensor at least 300 mm into the heated area it will be controlling. It should be located centrally between the closest parallel runs of pipe and not in an area influenced by other heat sources. - The sensor can be secured to the subfloor with tabs of tape.

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DO NOT tape over the sensor tip it must be in full contact with the screed layer.

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natural_image Industrial piping system with stainless steel fittings and a pressure gauge (no visible text or symbols)

S3 Manifold

FROM

Warmup

Warmup Metro - S3 Manifold - 1

Before installing any screed, floor finish, adhesives or glues over the system, the installation requirements of each must be checked to ensure compatibility with underfloor heating.

Warmup Metro - S3 Manifold - 2

Underfloor heating performs the most efficiently with conductive, low resistance floor finishes such as stone and tiles.

Table 1 - Screed types and minimum thicknesses

Screed TypeMinimum thickness (mm)Standard
Traditional cementitious sand/cement75 (65) BS 8204-1
Traditional calcium sulfate40 CIRIA Report 184
Pumpable self-smoothing calcium sulfate40 (35) BS 8204-7
Pumpable self-smoothing cementitious40 (35) BS 8204-7

Warmup Metro - S3 Manifold - 3

Table 1 shows different screed materials used and minimum thicknesses required with underfloor heating systems. Domestic measurements are in brackets. This table is for guidance only, screed layers used over Warmup Metro must be chosen and installed in line with the latest edition of building regulations and standards.

Warmup Metro - S3 Manifold - 4

natural_image Close-up of a corrugated metal roof corner with visible grating and construction details (no text or symbols)
  • Heated screeds will expand and contract slightly during use therefore expansion joints may also be required. As per: ISO 11855-5, an expansion joint plan (including type and place of joint) shall be drawn up by the building planner.
  • A joint shall be applied above a building joint. The floor screed shall be separate from rising elements (border joints, e.g. walls doorways etc.).
  • The determination of joint width, joint distance and joint areas depends on type of binder, floor covering geometry of the area, use of area and temperature change.

Warmup Metro - S3 Manifold - 5

natural_image 3D rendering of a train track with tracks and equipment, no visible text or symbols

- Any pipe crossing an expansion joint should be protected with a 300mm conduit, 150mm either side of the joint.

Warmup Metro - S3 Manifold - 6

natural_image Mechanical assembly with metal rods and a multi-tiered rack, no visible text or symbols

- Before the screed is laid the pipe should be pressure tested and then held at 3 bar whilst screeding. This will enable any leaks to be detected immediately. Please refer to the manifold manual for guidance.

Warmup Metro - S3 Manifold - 7

natural_image 3D rendering of a mechanical assembly with white brackets and a curved component, placed on a textured surface (no text or symbols visible)

- Apply the screed layer referring to the screed manufacturers instructions for mixing, drying and curing information.

Warmup Metro - S3 Manifold - 8

Curing times for sand/cement screeds are typically 21 days. DO NOT switch on the heater until the screed has fully cured.

The heating should not be turned on until the screed has fully cured. Once cured the heater can be switched on and the floor brought up to 20-25°C. This shall be maintained for at least 3 days after which the maximum design temperature shall be set and maintained for at least a further 4 days.

Warmup Metro - S3 Manifold - 9

natural_image Interior view of a room with a yellow object and directional arrows, accompanied by icons for stopwatch, calendar, and thermometer (no text or symbols on main objects)

- Once the screed has cured a heat cycle will need to be conducted before your floor covering is laid. Please see the manifold manual for instructions on the initial heat cycle.

- DO NOT install the floor covering until the floor has cooled down.

- The perimeter strip should finish just proud of the screed layer but can be trimmed back flush with a utility knife if required.

Warmup Metro - S3 Manifold - 10

Before installing any floor finish, adhesive or underlay over the screed layer, the installation requirements of each must be checked to ensure compatibility with underfloor heating.

Warmup Metro - S3 Manifold - 11

Underfloor heating performs the most efficiently with conductive, low resistance floor finishes such as stone and tiles. The maximum thermal resistance of the floor should not exceed 0.15 [m²K/W].

All floor finishes 1 Approved floor covering 2 Perimeter strip To allow for differential movement between finished floor level and walls 3 Screed layer 4 16mm PE-RT pipe 5 Metro rail 6 Vapour control layer To prevent water ingress 7 Insulation layer 8 Damp proof membrane To prevent water ingress 9 Concrete subfloor

Warmup Metro - S3 Manifold - 13

natural_image Interior corner of a tiled room with uniform white tiles (no text or symbols visible)
  • Lay the floor covering adhering to the flooring manufacturers instructions.
  • Ensure any floor coverings, underlays and adhesives used are suitable for use with underfloor heating at the intended operational temperatures and conditions.

Sensor resistance test
Warmup Metro - S3 Manifold - 14

natural_image Close-up of a tool interacting with a white cable, showing black and red components (no text or symbols visible)

- Ensure that the sensor is tested before the screed layer has been laid. Warmup thermostats typically use a 10 kΩ sensor. Please to refer to the thermostat manual for further details.

The expected resistance depending on temperature is listed below.

Sensor resistance by temperature - NTC10K

Temperature Resistance Temperature Resistance
0 °C 32.5 kΩ 16 °C 15.0 kΩ
2 °C 29.4 kΩ 18 °C 13.7 kΩ
4 °C 26.6 kΩ 20 °C 12.5 kΩ
6 °C 24.1 kΩ 22 °C 11.4 kΩ
8 °C 21.9 kΩ 24 °C 10.5 kΩ
10 °C 19.9 kΩ 26 °C 9.6 kΩ
12 °C 18.1 kΩ 28 °C 8.8 kΩ
14 °C 16.5 kΩ 30 °C 8.1 kΩ
ISSUE 1 - Staples coming out of the insulation layer
PROBLEM SOLUTION
Pipe turns are not being held at the correct spacing or incorrect number of staples used.Pipe bends should have one staple at the top of the turn with two staples either side at the beginning of the turn. The distance between the three staples should be 100mm.
Incorrect staple size used.60mm staples should be used on insulation boards of minimum thickness 40mm. For 20-40mm insulation 40mm staples can be used.
Insulation boards are wet. Allow the boards to dry.
ISSUE 2 - Metro rail not sticking to the damp proof membrane
PROBLEM SOLUTION
Self-adhesive back of rail not adhering correctly to damp proof membrane due to site conditionsStaple the Metro rail to the insulation layer using the Warmup clips
ISSUE 2 - Running out of pipe/excess pipe leftover
PROBLEM SOLUTION
When laying the pipe, incorrect pipe spacing has been used.The pipe will have to be installed again at the correct spacing as per your design layout
ISSUE 3 - Floor overheating at flow and returns to manifold
PROBLEM SOLUTION
As the pipes reach the manifold they are tightly packed together which will give a higher heat output.The pipes will need to be insulated using 15mm conduit or pipe lagging.
ISSUE 4 - Excessive/insufficient heat output
PROBLEM SOLUTION
Incorrect water temperatureRefer to System Performance chart to calculate the required water temperature

Warmup Metro rail

Code CompositionLength A (mm)Width B (mm)Height C (mm)Pipe centres D (mm)Max. Ø1; Ø2 (mm)
WHS-MT-RAIL01Polypropylene rails with self-adhesive back516 40 27 510016 - 18; 20 - 22

Warmup clips

Code CompositionA(mm)B(mm)Max. ∅(mm)
WHS-CL-T40Polypropylene clips40 2020
WHS-CL-T60 57 37 20

A Ø B

k^H Value - W/ m^2K
Resistance of Floor Covering, tog0.000.250.500.751.001.251.501.752.002.252.502.753.00
Pipe CentresWarmup Metro - 65mm Sand & Cement Screed, Thermal Conductivity λ = 1.20W/m·K
100mm 626 532 463 410 368 334 306 282 262 244 229 215 203
150mm541 466 410 367 332 303 280 259 242 227 213 201 1
200mm 469 409 364 329 300 276 256 239 224 210 199 188 179
250mm 407 360 324 295 272 252 235 220 207 196 185 176 168
300mm355 318 289 266 246 230 215 203 192 182 173 165 1
q = Specific Heat Output, W/m2kH = System Performance Factor, W/m2K
Twater = Mean water Temperature Tair = Room Air Temperature

Using the system k_H value to calculate the system heat output:

$$ \mathbf {q} = \mathbf {k} _ {\mathrm{H}} \times \left(\mathsf {T} _ {\text { water }} - \mathsf {T} _ {\text { air }}\right) $$

Example:

The heat output through an 18 mm thick, ≈ 1.25 tog timber floor, over Warmup Metro, fitted with pipe at 200 mm centres, in a 21°C room heated with 40°C water is;

$$ q = 2. 7 6 \times (4 0 - 2 1) = 2. 7 6 \times 1 9 = 5 2. 4 4 W / m ^ {2} $$

Alternatively, using the system k_H value to calculate the required water temperature, knowing the required heat output:

$$ T _ {\text { water }} = (q / k _ {H}) + T _ {\text { air }} $$

Example:

The water temperature required to produce a heat output of 55 W/m², through a 3 mm thick ≈ 0.25 tog LVT floor finish, over Warmup Metro, fitted with pipe at 200 mm centres, in a 22°C room is;

$$ T _ {\text { water }} = (5 5 / 4. 0 9) + 2 2 = 1 3 + 2 2 = 3 5 ^ {\circ} \mathrm{C} $$

Floor sensor setting for target heat output
Warmup Metro - Example: - 1

line | Specific Heat Output, W/m² | Temperature difference between design room air and floor surface OR floor sensor °C | | -------------------------- | -------------------------------------------------------------------------------------- | | 0 | 0.0 | | 10 | 1.0 | | 20 | 2.0 | | 30 | 3.0 | | 40 | 4.0 | | 50 | 5.0 | | 60 | 6.0 | | 70 | 7.0 | | 80 | 8.0 | | 90 | 9.0 | | 100 | 10.0 | | 110 | 11.0 | | 120 | 12.0 | | 130 | 13.0 | | 140 | 14.0 | | 150 | 15.0 | | 160 | 16.0 | | 170 | 17.0 | | 180 | 18.0 | | 190 | 19.0 | | 200 | 20.0 |

The room with the highest water temperature requirement sets the design water temperature for the whole system based on the calculations from the previous section.

Using the graph above it is possible to limit the specific heat output to the required value.

The example above shows a design room air temperature of 20^ C and design heat output of 52.5 W/m^2 . Based on a 0.150 m^2 K/W (1.5 tog) floor finish the floor sensor should be set to 33^ C ( 20^ C room air + 13^ C T ) to resulting in floor surface temperature of 25^ C ( 20^ C room air + 5^ C T ).

Warmup Metro - Example: - 2

line | Floor finish R-Value | 0.250 m²K/W | 0.225 m²K/W | 0.200 m²K/W | 0.175 m²K/W | 0.150 m²K/W | 0.125 m²K/W | 0.100 m²K/W | 0.075 m²K/W | 0.050 m²K/W | 0.025 m²K/W | |----------------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------|-------------| | Floor Surface | - | - | - | - | - | - | - | - | - | - |

Specific Heat Output, W/m²

Warmup Metro - Example: - 3

The design floor surface temperature difference should not be more than 9 °C in occupied areas, 15 °C in unoccupied areas.

Warmup Metro - Example: - 4

Heat output is limited by the floor finish resistance combined with the maximum probe setting of 40 °C.

Warmup Metro - Example: - 5

Temperature limits of the floor finish or its adhesive may adversely limit the design heat output.

Warmup plc limited warranty - Hydronic floor heating pipe

Warmup Metro - Warmup plc limited warranty - Hydronic floor heating pipe - 1

Registration can be completed online at www.warmup.co.uk In the event of a claim, proof of purchase is required in the form of an invoice or receipt

THIS WARRANTY DOES NOT EXTEND TO OTHER COMPONENTS WHICH ARE COVERED BY SEPARATE WARRANTIES. THIS WARRANTY DOES NOT AFFECT YOUR STATUTORY RIGHTS.

Limited warranty:

Warmup® underfloor heating pipe is warranted by Warmup plc ("Warmup") to be free from defects in manufacturing under normal use and maintenance, and is warranted to remain so subject to the limitations and conditions described below.

This warranty period begins on the date of purchase. The Lifetime warranty only applies if the product is registered with Warmup within 30 days after purchase and registered online at www.warmup.co.uk. Registration is confirmed only when confirmation of receipt is forwarded by Warmup plc

Warranty duration

- The PE-RT underfloor heating pipe is warranted for the LIFETIME of the floor under which it is fitted, except as provided below; your attention is drawn to the exclusions listed and the end of this warranty.

Notification of a suspected failure must be received in writing by Warmup within thirty (30) days of the suspected failure. Products believed to be defective must be made available to Warmup for testing and determination of cause

Upon acceptance of any warranty claim, Warmup shall have ninety (90) business days in which to investigate and determine whether it recognises responsibility for any believed defects in material or workmanship and determines the appropriate course of action to be taken.

It is expressly agreed that the sole remedies under this limited warranty shall be at the discretion of Warmup, plc to either: issue a refund, repair or replace any article which is proven to be defective. Any and all allowances made to customers for transportation, labour, repairs or all other work, are at the exclusive discretion of Warmup and shall be authorised in writing, in advance, by Warmup. Such cost does not extend to any cost other than direct costs of repair or replacement by Warmup and does not extend to costs of relaying or repairing any floor covering or floor.

The lifetime warranty applies to the pipes(s) if they:

  1. Are registered with Warmup within 30 days after purchase.
  2. Have not operated at a pressure of greater than 8 Bar.
  3. Have not operated at a temperature of greater than 60^ C.
  4. Are filled with treated water subtitle for use with PE pipes.
  5. Are installed according to all applicable building code requirements.
  6. Are selected, designed and installed by a qualified contractor according to installation instructions provided by Warmup which are current as of the applicable installation date.
  7. Remain in their original installed location, such that the floor covering or screed over the product is not damaged, lifted, replaced, repaired or covered with subsequent layers of flooring.
  8. Do not show evidence of accidental damage, misuse, lack of care, tampering, or repair or modification without the prior written approval of Warmup plc

SAFETY Net™ Installation-Guarantee

SafetyNet™ Installation Guidelines: If you make a mistake and damage the pipe before covering the pipe with screed, levelling compound or floor covering, return the damaged pipe to Warmup within in 30 days along with your original dated sales receipt. WARMUP WILL REPLACE THE COIL OF PIPE (MAXIMUM 1 COIL OF PIPE PER ORDER) WITH ANOTHER COIL OF THE SAME MAKE AND MODEL - FREE.

Register your Warmup® warranty online at www.warmup.co.uk

(i) Pipes repaired by Warmup carry a 5 year warranty only. Under no circumstances is Warmup responsible for the repair or replacement of any tiles / floor covering which may be removed or damaged in order to affect the repair.
(ii) The SafetyNet™ Installation Guarantee is null and void once the pipe is covered with a screed, levelling compound, adhesive or floor deck.
(iii) Damage to the pipe that occurs after covering, such as lifting a damaged tile once adhesive has set, or subfloor movement causing floor damage, is not covered by the SafetyNet™ Guarantee.

Warmup Metro - Register your Warmup® warranty online at www.warmup.co.uk - 1

Warmup plc

www.warmup.co.uk

uk@warmup.com

T: 0345 345 2288

F: 0345 345 2299

Warmup Metro - Warmup plc - 1

Warmup Metro - Warmup plc - 2
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Product information

Brand : Warmup

Model : Metro

Category : Underfloor heating