Mira Excel Thermostatic Shower
Description
The UK's best-selling thermostatic mixer shower, the Mira Excel is unbeatable at all pressures is suitable for all systems and comes with a 5 year guarantee. It's Mira's most advanced and versatile mixer shower, featuring precise thermostatic control, which recognizes and compensates for changes in water temperature to give you an extremely safe and satisfying shower. Recently improved to make installation even easier it's no wonder the Mira Excel continues to be the professional's choice
- Surface-mounted or built-in models - option of rigid shower head with built-in version
- Mira Logic easy-clean shower fittings, with four spray patterns: Start, Soothe, Force and Eco
- Maximum temperature stop for your protection
- Automatic shutdown if water supply fails for complete safety
- Large filters ensure shower works effectively even if 50% blocked
- Easy installation features save time and installation costs
Plumbing System Compatibility
- Fully modulating combi boilers and instantaneous gas water heaters
- Gravity-fed hot and cold water supply
- Gravity-fed hot and cold pumped water supply
- Mains pressure hot and cold - unvented
- Mains pressure thermal store
Mira Excel Product Range
Mira Excel-EV
Surface mounted shower control. Supplied complete with a Mira Logic Adjustable Spray showerhead with four different spray actions (Start, Soothe, Force and Eco) and rubberised finger grips for simple adjustment, metal clad hose, clamp bracket, wall mounted soap dish, slide bar and a hose retaining ring / gel hook.
Mira Excel BIV
Built in shower control for connection to concealed pipework. Supplied complete with a Mira Logic Adjustable Spray showerhead with four different spray actions (Start, Soothe, Force and Eco) and rubberised finger grips for ease of adjustment, metal clad hose, clamp bracket, wall mounted soap dish, slide bar, right - angle connector and a hose retaining ring / gel hook.
Mira Excel BIR
Built-in shower control for connection to concealed pipework. Supplied complete with a Mira Logic fixed showerhead offering four different spray actions (Start, Soothe, Force and Eco) and rubberised finger grips for simple adjustment and a wall mounted soap dish.
Mira Excel
Surface mounted shower control
Mira Excel B
Built-in shower control for connection to concealed pipework.
Principle of Operation
This fully thermostatic shower control mixes hot and cold water to the desired showering temperature and automatically compensates for variation in both the temperature and pressure of the inlet water supplies to maintain the blend temperature.
Limitations of Use
The Mira Excel should not be used for applications where an outlet flow control forms part of the shower fitting.
The product and its components are only suitable for normal water supplies and should be cleaned only with mild washing up detergent or soap solution. Light golden products should be cleaned using a soft damp cloth only.
Temperature
- Wax capsule temperature sensor
- Automatic shutdown to within 2 seconds if cold supply fails
- Adjustable and over-rideable maximum temperature stop (may be disabled)
- Temperature control range : 30oC - 50oC
- Maximum hot water temperature: 85oC (BS 6700 recommends a maximum of 65oC)
- Minimum temperature differential: 12oC (between blend and hot)
Pressure (inlet supplies)
- Minimum maintained pressure : 0.1 bar
- Maximum maintained pressure : 5.0 bar
- Maximum static pressure : 10 bar
- Maximum pressure loss ratio : 10:1
Performance
The specification performance outlined below for the low pressure setting is achieved with inlet water supply temperatures of 15oC cold and 65oC hot and nominally equal inlet supply pressures:
Close thermostatic control achieved in the range 30oC to 50oC
The blended water temperature is maintained within 1oC with a 10oC change in the hot and cold supply
The Mira Excel will effect a shutdown in typically two seconds if the cold supply fails.
Shutdown is effected only if the hot supply is a minimum of 12oC above the blend temperature
The blended water is maintained within +/- 1oC with a pressure loss ratio of 2:1 on either the hot and cold side.
Accessories
Optional DCV-H: outlet double check valve providing an alternative method of complying with UK water regulations
Guarantee
Guaranteed for five years from date of purchase against faulty materials or workmanship. Optional extended warranty available. Contact Mira Customer Support.
Application
The Mira Excel is designed for installation as part of the following plumbing systems:
- Gravity fed
- Fully instantaneous gas heated
- Mains pressurised (heated from a thermal store)
- Unvented mains pressure
- Pumped
When the Mira Excel is used at pressures above 5.0bar maintained a valve must be installed to maintain performance.
Installation
The plumbing installation must comply with the requirements of UK Water Regulations / Bylaws (Scotland), Building Regulations or any particular regulations and practices specified by the local water company or water undertakers. The installation should be carried out by a plumber or contractor who is registered or is a member of an association.
Protect the product from damage whilst making soldered connections. Some fluxes can cause damage to plastic components.
Mira Excel-EV
- Surface mounted
- Inlet elbows accept top, bottom or rear entry supplies
- Adjustable inlets on exposed models between 150mm and 155mm
- Inlet connections : 15mm compression, 1/2" BSP male
- Outlet connection : 1/2" BSP Male
- Reversed inlet connections supported
- Alternative top or bottom outlet supported
- Large serviceable inlet filters
Mira Excel B-Biv and Mira Excel B-BIR
- Built-in
- Inlet connections : 15mm compression
- Outlet connection : 15mm compression
- Mounting bracket for thin panel thicknesses between 4-21mm, or solid, dry lined or stud partition walls
- Building in shroud for product protection during plastering up
- Reversed inlet connections supported
- Alternative top or bottom outlet supported
- Large serviceable inlet filters
Click to view our full range of Mira Excel available to buy on-line.