The Miele PG 8055 and similar front-loading dishwasher models are designed for seamless integration into modern kitchens, offering advanced features for both residential and commercial environments. Proper installation is critical to ensure optimal performance, safety, and compliance with local regulations. This article provides a detailed overview of the installation requirements, procedures, and technical specifications based on official Miele documentation and installation guides.
Introduction
The Miele PG 8055 and related models are high-performance, fully integrated dishwashers that are designed to be embedded under a worktop in a fitted kitchen. These units are engineered for durability, efficiency, and ease of use. However, their installation requires careful planning and execution to ensure the machine is aligned correctly, connected safely, and functions within its intended parameters.
The installation process involves several key steps: preparing the installation site, adjusting the height and alignment of the machine, connecting to water and electrical supplies, fitting the front panel and door, and verifying all safety and operational standards. This guide draws from multiple Miele sources, including installation instructions, technical data, and service documentation, to provide a comprehensive resource for installers and users alike.
Installation Overview and Requirements
Miele dishwashers are intended to be installed by qualified technicians who are familiar with local electrical, plumbing, and building codes. The installation must also comply with the manufacturer's specifications and relevant safety standards, such as those outlined in the National Electrical Code (NEC) and local plumbing regulations.
Permitted Environmental Conditions
Before installation, it is essential to ensure that the environment meets the required ambient conditions:
- Permitted ambient temperature: 5°C to 40°C (40°F to 104°F)
- Relative humidity up to 31°C: 80%
- Relative humidity at 40°C: 50%
- Maximum altitude above sea level: 2000 meters (6560 feet)
These conditions ensure that the dishwasher operates safely and efficiently without risk of overheating, condensation damage, or performance degradation.
Machine Dimensions and Adjustments
The Miele PG 8055 and similar models have a standard height range that allows for fine-tuning to match the kitchen layout:
- Machine height options: 84 cm, 87 cm, or 89 cm (33.1", 34.3", or 35.0")
- Adjustment range: Approximately 5 cm (2.0")
The machine is equipped with adjustable feet to accommodate different countertop heights. This flexibility ensures that the dishwasher can be seamlessly integrated into a variety of kitchen designs.
Worktop and Front Panel Integration
These dishwashers are designed to be fully integrated under a worktop. The front of the machine is intended to accept a front panel or door that matches the surrounding kitchen units. A cover plate is provided to protect the underside of the worktop from steam and moisture. Additionally, a plastic holder is included to accommodate the control panel's light reflector.
When the dishwasher is installed, the front panel or door must be aligned correctly with the surrounding cabinetry. The door front can be adjusted up to 2 mm vertically to ensure proper alignment. In cases where the door front is too heavy, stronger springs may be required to prevent the door from falling open.
Plinth Facia and Door Adjustment
The plinth facia, which is the front-facing panel at the base of the dishwasher, should be positioned directly in front of the worktop edge. It is not attached during the initial installation to allow for door adjustment. Once the dishwasher door is correctly aligned and the plinth facia is in place, it can be secured to match the rest of the kitchen furniture.
Door adjustment is a critical step in the installation process. The door must be aligned so that the lower lugs of the fixing bracket fit into the slits of the dishwasher door panel. If the door is not properly aligned, the dishwasher may not close correctly, leading to leaks or improper operation.
Electrical and Plumbing Connections
The installation of a Miele dishwasher involves connecting it to both water and electrical supplies. These connections must be made by a qualified professional and must comply with all relevant codes and standards.
Electrical Connection
The dishwasher must be connected to a power supply that meets the following requirements:
- Voltage and frequency: As specified on the data plate located on the right-hand side of the door.
- Earthing and equipotential bonding: A proper earthing connection is required. The dishwasher should be connected via a suitable plug and socket for ease of access during commissioning and service. Alternatively, a hard-wired connection must be made using a suitable mains switch with all-pole isolation and a 3 mm gap between contacts in the off position.
- Residual current device (RCD): It is recommended to install a residual current device with a trip current of 30 mA for added safety.
- Cable protection: The connection cable must be protected from thermal damage. Faulty components must be replaced only by genuine Miele parts or by an authorized service technician.
The wiring in the mains lead follows the standard color code:
- Green/yellow = Earth
- Blue = Neutral
- Brown = Live
If the color coding does not match the terminal markings, the connection should be made according to the terminal functions rather than the wire colors.
Water Connection
The dishwasher must be connected to a water supply with a minimum pressure of 0.1 MPa (1 bar) and a maximum of 0.8 MPa (8 bar). The water supply must include a stopcock with a 3/4" male thread. A non-return valve is also installed to prevent dirty water from flowing back into the machine via the drain hose.
If the installation site’s drain connection is lower than the dishwasher’s drain hose guide path, a 1.5 m long flexible metal hose rated for 140 bar pressure may be required. This hose should be obtained from the Miele Spare Parts Department.
Drainage System
The machine’s drainage system includes a non-return valve that prevents backflow. The drain hose must be properly routed to avoid kinks or blockages. The installation guide recommends a maximum drain hose length of 4 meters. If the drain is located lower than the dishwasher, a longer hose may be necessary.
Installation Steps and Technical Procedures
The installation of a Miele dishwasher involves a series of precise steps to ensure correct alignment, secure mounting, and safe operation. Below is an overview of the key installation procedures:
1. Preparing the Installation Site
Before placing the dishwasher in the installation niche, ensure the following:
- The niche is correctly sized to accommodate the dishwasher’s dimensions.
- The countertop is prepared to receive the dishwasher and its front panel.
- The worktop is clear of any obstructions and is strong enough to support the machine.
- All necessary tools and components (e.g., mounting brackets, screws, and sealant) are available.
2. Adjusting the Machine Height
The dishwasher’s height can be adjusted using the adjustable feet located at the base. The adjustment range is approximately 5 cm (2 inches). Use a spirit level to ensure the machine is level both horizontally and vertically.
- Height options: 84 cm, 87 cm, or 89 cm
- Adjustment range: ±5 cm
The machine should be adjusted to match the height of the surrounding cabinets and countertops. Once the desired height is achieved, lock the feet in place.
3. Installing the Dishwasher in the Niche
Carefully lower the dishwasher into the installation niche. Ensure that the machine is centered within the niche and that the sides are equidistant from the adjacent cabinets. Use a measuring tape to verify the alignment.
If the machine is not aligned correctly, the door may not close properly. In such cases, the machine should be repositioned until the door aligns with the countertop edge.
4. Connecting Water and Electrical Supplies
After positioning the dishwasher, connect the water and electrical supplies according to the manufacturer’s instructions and local regulations.
- Water supply: Connect the inlet hose to the stopcock and the dishwasher’s inlet valve. Ensure that the hose is not kinked and that the connections are secure.
- Drain connection: Attach the drain hose to the drain pipe and ensure that the non-return valve is functioning properly.
- Electrical connection: Connect the dishwasher to the power supply using the appropriate plug and socket or hard-wired connection. Ensure that the wiring is secure and that the machine is properly earthed.
5. Fitting the Front Panel and Door
Once the machine is connected and aligned, the front panel or door can be installed. The door front must be adjusted to ensure it fits securely and closes properly.
- Door alignment: Adjust the door so that the lower lugs of the fixing bracket fit into the slits of the door panel. The door can be adjusted up to 2 mm vertically to match the surrounding cabinetry.
- Plinth facia: Position the plinth facia directly in front of the worktop edge and secure it once the door is properly aligned.
6. Final Checks and Commissioning
Before finalizing the installation, perform the following checks:
- Leak test: Run a short cycle to check for any water leaks from the inlet or drain connections.
- Electrical test: Verify that the dishwasher powers on and that all controls function correctly.
- Door closure: Ensure that the door closes smoothly and without resistance.
- Sound level: The dishwasher should operate at a sound pressure level of 45–47 dB, depending on the model.
If any issues are detected during the commissioning process, the installation should be reviewed and corrected by an authorized technician.
Technical Specifications and Performance Data
The following technical specifications and performance data are provided in the Miele installation and service documentation:
| Specification | PG 8055, PG 8096, PG 8099 | PG 8057 TD, PG 8058, PG 8059 |
|---|---|---|
| Sound pressure (washing and drying) | 47 dB | 45 dB |
| Minimum access height (including transport pallet) | 920 mm (36.25") | 920 mm (36.25") |
| Max. delivery head (internal dispenser pump) | 1.5 m (4.9") | 1.5 m (4.9") |
| Length of dispenser hose (back of appliance to suction lance) | 1.8 m (5.9") | 1.8 m (5.9") |
| Length of power cable (back of appliance to DOS module) | 2.8 m (9.2") | 2.8 m (9.2") |
| Heat dissipation rate (from operation) | 0.35 kWh (1194 BTU) | 0.35 kWh (1194 BTU) |
| Heat dissipation rate (from load items during unloading) | 0.40 kWh (1365 BTU) | 0.40 kWh (1365 BTU) |
These specifications ensure that the dishwasher operates within acceptable limits for noise, heat, and energy consumption. The low sound pressure level (45–47 dB) ensures a quiet operation, while the heat dissipation data helps determine the appropriate ventilation requirements for the installation site.
Safety and Compliance
Miele dishwashers are designed to meet strict safety and compliance standards. These standards include:
- Electrical safety: The dishwasher must be connected to a properly grounded power supply and equipped with a residual current device (RCD) for added protection.
- Water safety: The water connections must be made using approved hoses and fittings to prevent leaks and ensure a secure connection.
- Structural safety: The dishwasher must be installed on a stable, level surface and properly aligned to prevent tipping or vibration.
- Operational safety: The machine must be installed in a location that allows for easy access to the control panel, door, and service points.
All electrical and plumbing work must be performed by a qualified and licensed technician. Miele recommends that the installation be carried out by an authorized service technician to ensure compliance with all applicable standards and to maintain the warranty.
Conclusion
The Miele PG 8055 and similar front-loading dishwashers are advanced appliances designed for both residential and commercial use. Proper installation is essential to ensure safe, efficient, and trouble-free operation. By following the manufacturer’s guidelines and adhering to local regulations, installers can ensure that the dishwasher is correctly integrated into the kitchen environment.
Key aspects of the installation process include:
- Preparing the installation site and ensuring the environment meets the required conditions.
- Adjusting the machine height and aligning it with the surrounding cabinetry.
- Connecting the water and electrical supplies using approved components and methods.
- Fitting the front panel and door to ensure a seamless integration with the kitchen design.
- Performing final checks to verify that the dishwasher operates correctly and safely.
For users and installers, it is crucial to consult the official Miele installation instructions and service documentation to ensure all steps are followed correctly. This helps prevent common installation errors and ensures the dishwasher functions as intended.