Thermador Masterpiece Series Induction Cooktop Installation Guide

Important Safety Instructions

Read and save these instructions carefully before use. These precautions are designed to reduce the risk of electrical shock, fire, and injury to persons.

• Safety Definitions:
• WARNING: Indicates death or serious injury may occur if warnings are not followed.
• CAUTION: Indicates minor or moderate injuries may occur if warnings are not followed.
• NOTICE: Indicates damage to the appliance or property may occur if advisories are not followed.
• Note: Alerts to important information and/or tips.
• General Information: Read this manual carefully. Keep instructions, appliance pass, and product information for future reference. Do not connect if damaged in transit.
• 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. The appliance is intended for use up to 13,100 feet (4000 meters) above sea level.
• WARNING: Failure to follow instructions may result in fire, shock, property damage, or personal injury. Do not repair or remove parts unless recommended. Improper installation or maintenance can cause injury or damage. Refer to this manual for guidance. All other servicing should be done by an authorized service provider. When installing over an oven, follow both manuals. Do not install refrigerators, dishwashers, ovens (without ventilation), or washing machines below the cooktop. Never modify the appliance. Use only if installed by a qualified technician. Manufacturer is not responsible for damage from incorrect installation. To prevent burns or fire from reaching over heated surfaces, avoid cabinet storage above the cooktop. If storage is provided, install a hood projecting at least 5" (127 mm) beyond the cabinet bottom. Verify cabinets above the cooktop are a maximum of 13" (330 mm) deep.
• NOTICE: Installation of a ventilation system is strongly recommended.
• WARNING: Remove all tape and packaging before use. Dispose of packaging responsibly. Never allow children to play with packaging material.
• Appliance Handling Safety: Hidden surfaces may have sharp edges. Use caution when reaching behind or under the appliance.
• Safety Codes and Standards: Complies with UL 858 and CAN/CSA-E60335-2-6. Owner/installer responsibility to determine additional applicable standards.
• Electrical Safety: Installer must show owner the circuit breaker/fuse location. Installation on a separate branch circuit may be required by code. Local codes vary; installer is responsible for compliance. Circuit breaker should have at least 3 mm contact separation. Refer to the rating plate. Internal earth connection for functional purposes only.
• WARNING: Turn power OFF at the service panel before installing. Lock the panel to prevent accidental power restoration. Improper grounding can result in electric shock. Consult a qualified electrician for grounding instructions. Do not use an extension cord. If the power supply cord is too short, have a qualified electrician install an outlet nearby.
• California Proposition 65 Warnings: Product may contain chemicals known to cause cancer or reproductive harm.
• Restrictive Use: Not intended for use by persons with reduced physical, sensory, or mental capabilities, or lack of experience, unless supervised. Do not let children play with the appliance. Parents/guardians must ensure children are instructed in safe practices. Supervise children.

Before You Begin

Read these instructions before installation. This guide covers multiple models; graphics are representative.

• Parts Included: After unpacking, check all parts for damage and completeness.
• Tools and Parts Needed: Prepare a pencil, measuring tape, cross head screwdriver, 1/4" (6 mm) drill bit, and jigsaw. Additional materials may be needed for solid surface countertops; contact the manufacturer.
• Cabinet Requirements: Ensure cabinetry meets requirements for safe installation.
• Clearance A (top of cooktop to bottom of cabinets above): Minimum 30" (762 mm). Can be reduced to 24" (610 mm) if cabinet bottom is protected with flame-retardant millboard and metal sheeting.
• Clearance B (depth of unprotected cabinets above): Maximum 13" (330 mm).
• Installation over ovens/microwaves: Verify approved combinations.
• Installation of range hoods: Follow hood installation instructions for clearance.
• Countertop Requirements: Ensure countertop meets requirements for safe installation.
• 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 cut-out.

Prepare Installation Space

Create the countertop cutout according to instructions. General countertop requirements:

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

Cutout Dimensions for 30" Cooktops

Refer to these measurements for models: CIT304BB, CIT304BM, CIT304YM, CIT304YB, CIT30FBG.

Diagram Description: Shows a rectangular cutout with dimensions for a 30" cooktop. Key dimensions include: minimum 30" (762 mm) width, minimum 2" (51 mm) clearance on sides, minimum 2 1/4" (57 mm) clearance at front, and a width of 19 7/8" - 20" (505-508 mm) and length of 28 3/4" - 28 7/8" (731 - 734 mm) for the opening itself. Also shows drilling points for mounting brackets.

Cutout Dimensions for 36" Cooktops

Refer to these measurements for models: CIT365BB, CIT365YB, CIT367YG, CIT367YGS, CIT367YM, CIT367YMS.

Diagram Description: Shows a rectangular cutout for a 36" cooktop. Key dimensions include: minimum 30" (762 mm) width, minimum 2" (51 mm) clearance on sides and front, and a width of 19 7/8" - 20" (505-508 mm) and length of 34 3/4" - 34 7/8" (883 - 886 mm) for the opening. Also shows drilling points for mounting brackets.

Cabinet Ventilation Requirements

Adequate ventilation is crucial for proper appliance function. The lower section requires fresh air supply. Ensure the cabinet design supports sufficient ventilation.

• Maintain minimum clearance between the rear of the cabinet and the kitchen wall, and between the countertop surface and the upper drawer area.
• If the minimum rear cabinet clearance of 13/16" (20 mm) is not met, create an opening on the underside.
• If the cabinet interior width is no more than 29 1/2" (750 mm), make cutouts in the side panels.
• An opening is required at the top rear of the cabinet.
• For island units or other installations not described, ensure sufficient ventilation.

Installation Procedure

Follow these instructions to install the cooktop into the countertop.

CAUTION: Sharp edges. Use protective gloves.

CAUTION: The appliance is heavy. Two people are recommended for installation.

• Installing the Heat Shield: The heat shield must be installed properly for safety, preventing component overheating from hot 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 it. The heat shield should rotate freely.
• Securing the Cooktop to the Countertop: The cooktop must be secured from below using provided hold-down brackets to prevent slipping.
• 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. Ensure it is supported along the edges when placing. Turn the cooktop over and carefully place it into the cutout.
• 5. Insert clamping screws into the brackets and secure the cooktop to the countertop. Protect delicate countertops with a wooden disk.
• 6. Tighten the hold-down bracket screws on the underside.

Electrical Connection

Follow these instructions to safely connect the appliance to the electrical supply.

• Electrical Requirements: Ensure general requirements are met. The rating plate with electrical specifications is on the underside. The junction box must be within 3 feet of the connection and easily accessible.
• Power Supply: All models connect with the included 39" (1 m) flexible conduit.
• 240 V AC, 3-wire, 60 Hz: CIT304YB, CIT304YM, CIT304BB, CIT30FBG require 30 A breakers. CIT365YB, CIT367YG, CIT367YGS, CIT367YM, CIT367YMS, CIT365BB require 50 A breakers.
• 208 V AC, 3-wire, 60 Hz: All listed models require 30 A or 50 A breakers corresponding to their 240V requirements.
• Connecting Electrical Supply:
• WARNING: Turn power OFF at the service panel before installing. Lock the panel.
• Note: Proper installation ensures grounding per the National Electrical Code.
• 1. Install a suitable junction box (not furnished). Branch-circuit breaker ampacity, wire sizes, and connections must conform to the National Electrical Code, Canadian Electrical Code, and local codes.
• 2. Attach the flexible conduit to the junction box.
• 3. Connect lead wires to the junction box supply wires in proper phase.
• Diagram Description: Shows a junction box with wires. Labels indicate: 1 Red wires, 2 UL listed wire connectors, 3 Green (or bare) ground wire (from appliance), 4 Cable from home power supply, 5 Black wires, 6 Junction box, 7 Flexible conduit from appliance. Instructions specify connecting black to black, red to red, and ground to ground.

Checking the Installation

Verify proper operation after completing installation steps.

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

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 out the appliance from below.

Customer Service

For warranty repairs, Thermador uses authorized service providers and genuine replacement parts. Detailed warranty information is available from your retailer or on the 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.thermador.com/us/accessories
• Canada: 1-800-735-4328, www.thermador.ca, www.thermador.ca/en/support/filters-cleaners-accessories
• Quebec Residents: Visit www.thermador.ca/fr/service/residents-du-qc for parts, service, and maintenance information.
• For Home Connect® assistance, visit www.home-connect.com/us/en/help-support/set-up.
• Model Number (E-Nr.) and Production Number (FD): Found on the appliance's rating plate, glass ceramic, or in basic settings.
• Rating Plate Location: Found on the underside of the appliance, in the appliance pass, or in basic settings.