Dacor Heritage HCT305G Technical manual

PLANNING
GUIDE
All specications subject to change without notice. www.dacor.com Ph. 800.793.0093
HCT Dimensions
Cooktop/Chassis Dimensions
Model A (cooktop width) B (chassis width)
HCT305G 30” (76.2 cm) 27 ⁵/₁₆” (69.4 cm)
HCT365G 36” (91.4 cm) 33 ⁵/₁₆” (84.6 cm)
Heritage®30”, 36” Wide
Drop-In Gas Cooktop
Doc #: PGH-HCT.01 Revised 22 May2018 Page1 of 4
All tolerances: ±¹/₁₆” (±1.6 mm), unless otherwise stated.
HCT305G, HCT365G
Cooktop Overhang Dimensions
WARNING
• Observe all governing codes and ordinances during planning/
installation. (Contact your local building department for details.)
• This appliance must be installed as instructed in this guide.

PLANNING
GUIDE
All specications subject to change without notice. www.dacor.com Ph. 800.793.0093
Electrical Requirements
WARNING
To prevent an electric shock hazard, the power supply must meet the
specifications below. The owner shall ensure that the electrical service
meets electrical requirements and that the outlet is properly installed
by a licensed electrician.
• The cooktop comes with a 42” power cord with 3-prong,
grounding plug (chassis bottom, right-rear corner).
• The cooktop must be connected to a dedicated, grounded
3-prong outlet installed by a licensed electrician.
• The electrical installation, including minimum supply-wire size
and grounding, must comply with the National Electric Code
ANSI/NFPA 70* and local codes and ordinances. A copy of this
standard may be obtained from:
National Fire Protection Association
1 Batterymarch Park
Quincy, Massachusetts 02269-9101
• Be certain that the cooktop is correct for the provided gas
service (natural or LP gas).
• If operating the cooktop at an altitude above 4000 ft. (1210 m),
ensure it is equipped for high-altitude use.
• The correct voltage, frequency and amperage must be supplied
to the electrical outlet according to the product data label
located on the bottom of the chassis (see graphic at left). See
the Gas and Electrical Requirements table on this page for
reference.
• Be certain to locate the electrical outlet so power may be easily
disconnected if the unit needs service.
• Check local building codes for the proper installation method.
If no such codes exist, install the cooktop per the National Fuel
Gas Code ANSI Z223.1/NFPA 54.
• An external manual shut-off valve must be installed between the
gas inlet and cooktop so gas to the cooktop can be shut on/off.
• Use only the factory regulator, which must be installed in the gas
line that runs from the cooktop gas inlet to the gas shut-off valve.
• Because the regulator inlet accommodates a ” gas line, and
the cooktop inlet is a ” male NPT fitting, a ”-to-” reducer
comes with the cooktop.
The cooktop gas connection is on the chassis bottom, back right
corner. (See the graphic at left.)
Gas/Electrical Requirements (reference only*)
Specification HCT305G_NG
HCT365G_NG
HCT305G_LP
HCT365G_LP
Gas type Natural Gas LP Gas
Manifold pressure 5” water column 10” water column
Min. gas-supply pressure** 6” water column 11” water column
Max. gas-supply pressure  psi
Total connected load 0.25 Amp. (30 Watts)
Circuit requirement 120 Vac, 60 Hz, 15 Amp.
*If the above data does not agree with the data label, use the data on the label;
**the gas-supply pressure for testing the regulator setting shall be at least 1”
water column (249 Pa) above the specified manifold pressure.
Heritage®30”, 36” Wide
Drop-In Gas Cooktop
Page 2 of 4
All tolerances: ±¹/₁₆” (±1.6 mm), unless otherwise stated.
HCT305G, HCT365G
Gas/Electrical Dimensions

PLANNING
GUIDE
All specications subject to change without notice. www.dacor.com Ph. 800.793.0093
Heritage®30”, 36” Wide
Drop-In Gas Cooktop
Page 3 of 4
All tolerances: ±¹/₁₆” (±1.6 mm), unless otherwise stated.
HCT305G, HCT365G
Configuration A (Minimum/
Recommended)
B (Min. Interior Space
Betw. Combustible
Surfaces)
C (Min., Cutout
to Backsplash) D (Cutout Depth) E (Cutout Width)
F (Min., Cutout
to Combustible
Side Wall)
HCT305G (no downdraft) 30” (76.2 cm)/
36” (91.4 cm) 29 ” (74.3 cm)
3 ” (8.3 cm) 19 ” (49.9 cm) 27 ”
(70.2 cm)
6 ” (17.5 cm)
HCT365G (no downdraft) 36” (91.4 cm)/
42” (106.7 cm) 35 ” (89.5 cm)
HCT305G (with MRV3015
downdraft)
30” (76.2 cm)/
36” (91.4 cm) 29 ” (74.3 cm)
” (1.0 cm) 22 ” (57.8 cm) 33 ”
(85.4 cm)
HCT365G (with MRV3615
downdraft)
36” (91.4 cm)/
42” (106.7 cm) 35 ” (89.5 cm)
Downdraft Compatibility
IMPORTANT: If installing cooktop with a
downdraft, install only the Dacor downdraft
models specified in the table below.
Cabinet and Countertop Layout
• Install the cooktop away from drafts caused by doors,
windows, and home ventilation outlets.
• The cooktop is to be used with a suitable vent hood or
approved Dacor downdraft-vent system.
WARNING
• To reduce risk of burn injury from reaching over a hot cooktop,
avoid cabinet storage above the cooktop.
• Failure to comply with the max/min dimensions and clearances
in this guide may cause a fire hazard.
• Follow the countertop manufacturer’s instructions regarding
minimum corner radius, use of heat-reflective tape, corner
reinforcement, etc.
• Allow at least ” (6 mm) clearance between the bottom of
the cooktop chassis and all combustible surfaces, including
the upper edge of a drawer.
• The gas-supply piping, shut-off valve, and power outlet must not
interfere with the installed cooktop. If installing an appliance
below the cooktop, allow for routing of utilities behind it.
Installation must allow:
• access to the gas shut-off valve and regulator after installation.
• access to the electrical outlet when the cooktop is in place;
the 42” (106.7 cm) power cord must be able to reach the
electrical outlet
• access to the cooktop bottom for service/inspection
• clearance inside the cabinet for proper hold-down bracket
installation.
To allow access to the utilities and cooktop bottom, do not
install a fixed shelf below the cooktop. See the next page for
countertop cutout dimensions.
Callout Description
1 Measured from top of cooktop grate to combustible surface.
2
If installing an overhead vent hood, also check hood
specifications for minimum required clearances.
3Not applicable for cabinets over 5 ” (14.0 cm) from either side
of cooktop edge; allow 6 ” (17.5 cm) from edge of cutout.

PLANNING
GUIDE
All specications subject to change without notice. www.dacor.com Ph. 800.793.0093
Cabinet and Countertop Layout, cont.
Heritage®30”, 36” Wide
Drop-In Gas Cooktop
Page 4 of 4
All tolerances: ±¹/₁₆” (±1.6 mm), unless otherwise stated.
HCT305G, HCT365G
HCT Cooktop With Dacor MvRV Downdraft (side)
Hold-Down Bracket Clearance (front)