Mira Vigour Thermostatic Power Shower Manual⁚ A Comprehensive Guide

This comprehensive guide provides detailed instructions for the installation, commissioning, operation, and troubleshooting of the Mira Vigour Thermostatic Power Shower․ It covers all aspects of the shower, from unpacking and identifying parts to adjusting the maximum temperature setting and diagnosing common faults․

Introduction

The Mira Vigour Thermostatic Power Shower is a powerful and versatile showering solution designed to enhance your bathing experience․ This all-in-one power shower features an integral mains voltage pump, providing a robust water flow even in homes with low water pressure․ It boasts separate controls for flow and temperature, allowing you to customize your shower to your exact preferences․ The Mira Vigour Thermostatic Power Shower is engineered with a 15 mm dual entry push-fit manifold, facilitating easy installation and accommodating various inlet supply configurations․ This manifold incorporates inlet filters and check valves, ensuring optimal performance and extending the lifespan of your shower․ The thermostatic mixer, equipped with a wax capsule sensing unit, guarantees consistent temperature control, providing a safe and enjoyable showering experience․

Important Safety Information

This Mira Vigour Thermostatic Power Shower is designed for safe and reliable operation when installed and used correctly․ Please read and understand the following safety information before installing or using this shower․ Failure to comply with these instructions could result in injury or damage to the appliance․

Warning!

• Do not use this shower if you are unsure of its operation or if any part is damaged or missing․
• Do not attempt to repair or modify this shower yourself․ Contact a qualified electrician or plumber․
• Do not install this shower in a location where it could become frozen․
• Do not use this shower if water leaks from it․
• Do not operate this appliance if water leaks from this appliance․
• Do not fit any form of outlet flow control as the outlet acts as a vent for the tank body․ Only Mira Showers recommended outlet fittings should be used․
• If water leaks from the pressure relief valve, maintenance will be required before the appliance can be safely used․

Pack Contents

Before you begin installation, ensure all the necessary components are included in your Mira Vigour Thermostatic Power Shower package․ Check the following items against the list below․ If any parts are missing or damaged, please contact Mira Showers customer service immediately․

• 1 x Thermostatic Power Shower
• 4 x Case Inserts
• 1 x Flow Control Knob
• 1 x Inner Temperature Control Knob
• 1 x Temperature Indicator Trim
• 1 x Temperature Override Button
• 1 x Shower Head
• 1 x Hose Washer
• 1 x Flexible Hose
• 3 x Cover Securing Screws
• 3 x Rubber Feet
• 1 x Push-Fit Release Tool
• 1 x Installation and User Manual

This list is provided for your reference․ Please consult the individual parts diagram within the manual for detailed component identification․

Dimensions

The Mira Vigour Thermostatic Power Shower is designed for compact installations, but it’s essential to ensure you have adequate space for both the shower unit itself and its installation requirements․ The following dimensions will help you determine if the shower will fit comfortably in your intended location․

The shower unit has a nominal width of 330mm, a height of 460mm, and a depth of 165mm․ These measurements are approximate and may vary slightly․ It’s essential to consider the location of any nearby pipes, electrical outlets, or other fixtures that could interfere with installation․ Ensure the shower is positioned at a height convenient for all users, with at least 200mm clearance from the ceiling to allow for easy cover removal․

When considering the overall space required, remember to factor in the installation of the inlet supply pipes, the flexible hose, and the showerhead․ Refer to the installation instructions in this manual for detailed guidance on plumbing and electrical connections and their associated dimensions․

Specifications

The Mira Vigour Thermostatic Power Shower is designed to deliver a powerful and invigorating showering experience, even in homes with low water pressure․ It boasts a range of features that contribute to its performance and efficiency, including a powerful integral pump, thermostatic control, and a dual-entry push-fit manifold․

The shower operates on a mains voltage supply and incorporates a self-resetting thermal trip, designed to prevent overheating in case of abnormally high voltage fluctuations․ The thermostatic mixer features a wax capsule sensing unit for precise temperature control, ensuring a comfortable and safe showering experience․ The dual-entry push-fit manifold supports various inlet supply configurations and includes inlet filters and check valves for optimal performance․

The maximum static pressure for the shower is 100 kPa (1 bar) or 10 m head of water․ It’s crucial to ensure that your water supply meets these specifications for optimal performance․ The shower pump is continuously rated and designed for prolonged operation․ Consult the installation instructions for further details on specific requirements and recommended installation practices․

Installation Requirements

The Mira Vigour Thermostatic Power Shower requires careful planning and installation to ensure optimal performance and safety․ It’s essential to have a gravity-fed system with a cold water cistern and hot water cylinder providing equal pressure for proper operation․ The minimum storage capacity for cold water should be 230 liters (50 gallons) to provide adequate showering time․ Insufficient storage may lead to the pump running dry, affecting performance and potentially causing damage․

The shower should be installed in a location where it won’t be exposed to freezing temperatures, as this can damage the internal components․ Ensure that the chosen location allows for sufficient clearance for the unit, including a minimum of 200 mm below the ceiling for easy access to the unit cover․ Avoid installing the shower in areas with buried cables or pipes to prevent potential damage during installation or maintenance․

The installation process requires a competent person experienced in plumbing and electrical work․ It’s crucial to isolate both electrical and water supplies before starting the installation to prevent accidents․ The shower must be connected to the cold water storage cistern and hot water cylinder with equal pressures to ensure proper operation․ Consult the detailed installation instructions for specific requirements and safety precautions․

Installation

The installation of the Mira Vigour Thermostatic Power Shower requires careful attention to detail and adherence to safety guidelines․ Before beginning, ensure that electrical and water supplies are isolated to prevent potential accidents․ The shower unit should not be attached to the wall until plumbing and electrical connections are complete․ Choose a suitable location for the shower, ensuring it’s not exposed to freezing temperatures and allows for easy access to the unit cover․

Plumbing connections involve connecting the inlet manifold to the supply pipes․ Use the push-fit connectors, ensuring the pipe ends are cut squarely and free of burrs to prevent damage to the seals․ When connecting the manifold, do not force it onto the pipework, as this could lead to damage․ PTFE tape or liquid jointing compound should not be used for these connections․

Electrical installation requires careful attention to wiring and grounding․ Ensure the shower unit is connected to a dedicated circuit with appropriate electrical protection․ Refer to the installation manual for specific wiring diagrams and safety instructions․ Consult a qualified electrician if you are unsure about any aspect of the electrical installation․

General

The Mira Vigour Thermostatic Power Shower is designed for gravity-fed systems, requiring both a cold water cistern and a hot water cylinder for optimal performance; The system must provide nominally equal pressure from both sources․ The shower unit should not be installed in areas where it could be exposed to freezing temperatures․ During the installation process, it’s crucial to maintain a safe working environment, ensuring that both electrical and water supplies are isolated before any work is performed․

The shower unit must be fed from both a cold water storage cistern and a hot water cylinder with equal pressures․ For optimal performance, a minimum cold water storage capacity of 230 liters (50 gallons) is recommended․ Insufficient storage could result in the pump running dry․ The layout and sizing of the pipework must be designed to achieve nominally equal inlet supply pressures and minimize the impact of other water draw-offs on shower performance․

Electrical

The Mira Vigour Thermostatic Power Shower is equipped with an integral mains voltage pump, requiring a dedicated electrical circuit for safe and efficient operation․ It is essential to ensure that the electrical installation complies with all relevant local building regulations and safety standards․ The electrical wiring must be carried out by a qualified electrician, who will ensure that the circuit is properly sized and protected by a suitable circuit breaker or fuse․

The shower unit should be connected to a dedicated circuit with a minimum rating of 13 amps․ The circuit should be protected by a Residual Current Device (RCD) with a trip current of not more than 30mA․ The RCD is a safety device that helps to prevent electric shocks by interrupting the power supply in case of a fault․ The electrical installation should include a suitable isolation switch that allows you to completely disconnect the power supply to the shower unit when necessary․

Plumbing

The Mira Vigour Thermostatic Power Shower is designed for gravity-fed systems, requiring a cold water cistern and hot water cylinder with nominally equal pressures․ The shower unit must be fed from these sources to ensure consistent water flow and performance․ A minimum cold water storage capacity of 230 liters (50 gallons) is recommended to provide adequate showering time․ Insufficient storage may result in the pump running dry, affecting the shower’s operation․

The plumbing installation should be carried out by a qualified plumber, ensuring that all pipework is properly sized, supported, and secured․ The supply pipes must be cut squarely and free from burrs to prevent damage to the inlet manifold seals․ It is essential to ensure that the layout and sizing of pipework achieve nominally equal inlet supply pressures, minimizing the impact of other draw-offs on the shower’s performance․

Commissioning

Once the plumbing and electrical installations are complete, the Mira Vigour Thermostatic Power Shower must be commissioned to ensure proper operation․ Connect the flexible hose to the outlet of the shower unit, ensuring it is not over-tightened․ Turn on the water supplies and carefully check for any leaks at the connections․ The shower unit must never be run dry, so it is crucial to verify that the water flow is uninterrupted․

The maximum temperature setting may need to be adjusted to suit site conditions and ensure safe showering․ The hot water temperature should be at least 12°C above the desired shower temperature for optimal thermostatic operation․ Turn the temperature spindle until the required maximum water temperature is achieved, but do not force the spindle beyond the point of resistance, as this could damage internal components․

Maximum Temperature Setting

The Mira Vigour Thermostatic Power Shower features an adjustable maximum temperature setting for safety and user comfort․ This setting should be checked and adjusted as needed to accommodate site conditions and individual preferences․ To ensure safe showering, the hot water temperature should always be at least 12°C above the desired shower temperature․

To adjust the maximum temperature, turn the temperature spindle until the desired maximum water temperature is reached․ It is crucial to note that once resistance is felt, do not use force to turn the spindle further․ Forcing the spindle beyond this point could damage the internal components of the shower․ The maximum shower temperature obtainable is limited by the available hot water storage temperature․

Disabling the Temperature Override Button

The Mira Vigour Thermostatic Power Shower incorporates a temperature override button that allows users to temporarily exceed the preset maximum temperature setting․ While this feature can be convenient for occasional use, it’s essential to disable it in situations where the shower will be used by individuals who may not be familiar with the controls or who require a consistent, safe temperature setting․

Disabling the temperature override button is crucial for safeguarding vulnerable users such as children, the elderly, or those with disabilities․ By deactivating this feature, you ensure that the shower’s maximum temperature setting remains active, preventing accidental scalding and promoting a safe showering experience for all users․

Operation

The Mira Vigour Thermostatic Power Shower offers a simple and intuitive operation, providing a convenient and enjoyable showering experience․ To begin, turn the outer flow control knob clockwise to adjust the desired water flow․ This control regulates the volume of water delivered, allowing you to customize your showering experience․

To control the water temperature, use the inner temperature control knob․ Turn this knob anticlockwise to increase the water temperature or clockwise to decrease it․ The shower features a thermostatic mixer, ensuring a consistent water temperature, even with fluctuating water pressure․

For added convenience, the Mira Vigour Power Shower includes a temperature override button․ Pressing this button allows you to temporarily adjust the maximum temperature setting, providing flexibility for individual preferences․ Remember to release the override button when you’re finished to return to the preset maximum temperature․

Fault Diagnosis

The Mira Vigour Thermostatic Power Shower is designed for reliable operation․ However, if you encounter any issues, refer to this fault diagnosis section for guidance․ If the shower fails to operate, ensure that the water and electrical supplies are turned on․ Check the flow control knob and ensure it’s not in the OFF position․

If the shower produces a weak flow, there may be a blockage in the inlet filters or the showerhead․ Clean the filters and showerhead thoroughly․ If the water temperature fluctuates, check the hot water cylinder temperature and ensure it’s at least 12°C above the desired showering temperature․

If the shower makes unusual noises, check for any loose fittings or obstructions in the plumbing system․ If you suspect a more serious issue, contact a qualified Mira Service Engineer or a qualified tradesperson for assistance․ Remember, it’s important to follow the safety instructions and consult a professional if necessary․