Thermador Masterpiece Series Induction Cooktop

1. Important Safety Instructions

Read and save these instructions carefully. Failure to follow these precautions may result in electrical shock, fire, or injury.

1.1 Safety Definitions

• WARNING: Indicates risk of death or serious injury if not observed.
• CAUTION: Indicates risk of minor or moderate injury if not observed.
• NOTICE: Indicates potential damage to the appliance or property if not followed.
• Note: Alerts to important information and tips.

1.2 General Information

• Read this manual carefully.
• Keep instructions, appliance pass, and product information for future reference.
• Do not connect a damaged appliance.

1.3 General Safety Instructions

• Installation MUST be performed by a qualified installer.
• Save these instructions for the local electrical inspector.
• Examine the appliance after unpacking; do not plug in if damaged.
• Failure to follow instructions may cause fire or shock.
• Do not repair or replace parts unless recommended in the manual. Improper installation or service can cause injury or damage.
• Refer to this manual for guidance; all other servicing by authorized providers.
• When installing over an oven, follow both manuals.
• Use only approved cooktop/oven combinations; consult the Approved Combination Matrix.
• Do NOT install refrigerators, dishwashers, ovens (without ventilation), or washing machines below the cooktop.
• Never modify the appliance.
• Manufacturer is not responsible for damage from incorrect installation.
• Avoid cabinet storage above cooktop to prevent burns or fire risk. A hood projecting 5" (127 mm) beyond the cabinet can reduce risk.
• Verify overhead cabinets are a maximum of 13" (330 mm) deep.
• A ventilation system is strongly recommended.
• Remove all tape and packaging before use. Dispose of packaging responsibly. Keep away from children.

1.4 Appliance Handling Safety

• WARNING: Hidden surfaces may have sharp edges. Use caution when reaching behind or under the appliance.

1.5 Safety Codes and Standards

Complies with UL 858 (Household Electric Ranges) and CAN/CSA-E60335-2-6. Owner/installer must determine if additional standards apply.

1.6 Electrical Safety

• Installer: Show owner the circuit breaker/fuse location.
• Install on a separate branch circuit if required by electrical codes.
• Installer is responsible for compliance with all applicable codes.
• Circuit breaker must have at least 3 mm contact separation on all poles.
• Refer to the rating plate for electrical specifications.
• Appliance has an internal earth connection for functional purposes only.
• WARNING: Turn power OFF at the service panel and lock it before installing.
• DO NOT USE AN EXTENSION CORD.
• GROUNDING INSTRUCTIONS: Appliance must be grounded for safety. Ensure proper installation and grounding by a qualified technician.
• Improper grounding can result in electric shock. Consult an electrician if unsure.

1.7 State of California Proposition 65 Warnings

Product may contain chemicals known to cause cancer or reproductive harm. Packaging may bear the following warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

2. Before You Begin

Read these instructions before installation.

2.1 Parts Included

After unpacking, check all parts for damage and completeness.

2.2 Tools and Parts Needed

• Pencil
• Measuring tape
• Cross head screwdriver
• Drill with 1/4" (6 mm) bit
• Jigsaw
• Note: Additional materials may be needed for solid surface countertops; contact the manufacturer.

2.3 Cabinet Requirements

Ensure cabinetry meets requirements for safe installation.

Diagram illustrating cabinet clearance requirements: 'A' indicates the minimum vertical distance from the cooktop to the bottom of overhead cabinets (30 inches or 24 inches with protection), and 'B' indicates the maximum depth of unprotected overhead cabinets (13 inches).

2.4 Countertop Requirements

• WARNING: Install at least 2" (51 mm) from sidewalls and rear wall to reduce ignition risk.
• Countertop must be level and horizontal.
• Countertop stability must be maintained after cutout.
• Solid surface countertops may require special installation (e.g., heat-reflective tape, rounded corners); consult manufacturer.

Installation in Combination with Other Products

Install both products according to their specific instructions.

• Cooktop over Oven/Microwave: Use only approved combinations listed in the Approved Combination Guide.
• Range Hood/Microwave Hood Above Cooktop: Follow hood installation instructions for clearance.

3. Prepare Installation Space

Create the countertop cutout according to instructions.

General Countertop Requirements

• Cut surface angle must be 90°.
• Secure lateral strips in multi-layered countertops if needed.
• Remove all shavings after cutting.
• Seal cut surfaces with heat- and water-resistant material.
• Minimum distance between appliance underside and cabinet surfaces: 3/8" (10 mm).
• Countertop must be heat-resistant up to 140°F (90°C).
• Countertop must be at least 13/16" (20 mm) thick.
• If countertop thickness is insufficient, reinforce with fire- and water-resistant material.
• Countertop must withstand loads of approx. 133 lbs (60 kg).
• Confirm cooktop is level only after installation.

3.1 Cutout Dimensions for 30" Cooktops

Diagram showing cutout dimensions for 30-inch cooktops (models CIT304YB, CIT304YM). It specifies a minimum cutout width of 30 inches (762 mm) and a depth of 19 5/8 to 20 inches (505-508 mm). It also indicates four 1/4 inch (6 mm) mounting holes at 90-degree angles.

3.2 Cutout Dimensions for 36" Cooktops

Diagram showing cutout dimensions for 36-inch cooktops (models CIT365YB, CIT367YG, CIT367YGS, CIT367YM, CIT367YMS). It specifies a minimum cutout width of 34 3/4 to 34 7/8 inches (883-886 mm) and a depth of 19 5/8 to 20 inches (505-508 mm). It also indicates four 1/4 inch (6 mm) mounting holes at 90-degree angles.

3.3 Cabinet Ventilation Requirements

Ensure sufficient ventilation for proper operation. The cabinet design must support adequate fresh air supply.

Diagram illustrating cabinet ventilation requirements, showing minimum clearances for air circulation within the cabinet, including an opening at the top rear and a minimum clearance of 13/16 inch (20 mm) at the underside if rear clearance is insufficient.

Diagram showing ventilation cutouts in side panels for cabinets narrower than 29 1/2 inches (750 mm).

Diagram showing an opening at the top rear of the cabinet for ventilation.

Diagram illustrating a required opening on the underside of the cabinet if the minimum rear clearance is absent.

4. Installation Procedure

Follow these instructions to install the cooktop into the countertop.

• CAUTION: Sharp edges. Use protective gloves.
• CAUTION: Appliance is heavy. Two people recommended for installation.

4.1 Installing the Heat Shield

The heat shield prevents overheating from air recirculation. It is the same width as the cooktop.

• CAUTION: Sharp edges. Use protective gloves.
• Requirement: Cooktop unpacked.
• For shipping, the heat shield is screwed to the bottom; unscrew this fastening screw. The heat shield should rotate freely.

4.2 Securing the Cooktop to the Countertop

Use the provided hold-down brackets to secure the cooktop from below.

1. Place the cooktop face down on a soft surface.
2. Attach hold-down brackets to the underside with short screws (do not tighten yet).
3. Rotate brackets to allow placement in the cutout.
4. CAUTION: Do not let the cooktop drop. Support edges when placing into cutout. Carefully turn and place the cooktop into the countertop cutout.
5. Insert clamping screws into brackets and secure cooktop to the countertop. Use a wooden disk to protect delicate countertops.
6. Tighten hold-down bracket screws on the underside.

5. Electrical Connection

Connect your appliance safely to the electrical supply.

5.1 Electrical Requirements

• Ensure general requirements are met.
• Rating plate with electrical specifications is on the underside of the appliance.
• Junction box must be within 3 feet of the cooktop connection and easily accessible.

Diagram illustrating the electrical connection setup, showing the junction box (d) positioned within 3 feet of the cooktop, connected via flexible conduit (e) to the appliance. Labels indicate maximum clearance for conduit fittings (a), minimum air clearance (b), and approximate length of conduit/wiring (c).

Power Supply

All models must be connected with the included 39" (1 m) flexible conduit.

5.2 Connecting Electrical Supply

• WARNING: Turn power OFF at the service panel and lock it before installing.
• If installed and connected as specified, the cooktop will be grounded per the National Electrical Code.
• Install a suitable junction box (not furnished). Branch-circuit breaker ampacity, wire sizes, and connections must conform to National Electrical Code, Canadian Electrical Code, and local codes.
• Attach the flexible conduit to the junction box.
• Connect the lead wires to the junction box supply wires in proper phase.

Diagram illustrating the connection of wires from the cooktop's flexible conduit to the junction box supply wires: red wires to red house wire, black wires to black house wire, and green/bare wire to ground.

6. Checking the Installation

Verify proper operation after installation.

• WARNING: Ensure all controls are OFF before turning on power.
• Remove all stickers from the cooktop surface.
• Clean the cooktop surface with cooktop cleaning cream.
• Switch on the circuit breaker.
• Verify all cooking zones function correctly.

7. Removing the Appliance

1. Disconnect the appliance from the power supply.
2. NOTICE: Do not lever the appliance out from above at the frame. Push the appliance from below.

8. Customer Service

Contact Customer Service for questions, troubleshooting, or repairs. Repairs use genuine replacement parts by authorized providers.

Warranty information is available from the retailer or on the Thermador website.

When contacting Customer Service, have your model number (E-Nr.) and production number (FD) ready.

• USA: 1-800-735-4328, www.thermador.com/support, www.store.thermador.com/us
• Canada: 1-800-735-4328, www.thermador.ca
• Home Connect™ Setup: www.home-connect.com/us/en/help-support/set-up

8.1 Model Number (E-Nr.) and Production Number (FD)

Find the model number (E-Nr.) and production number (FD) on the appliance's rating plate, the glass ceramic, or in the basic settings.

8.2 Rating Plate Location

The rating plate is located on the underside of the appliance, in the appliance pass, or in the basic settings.

Diagram showing the location of the rating plate (a) on the underside of the cooktop.