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2
Getting Started
A. Design and Installation Considerations
Majestic direct vent gas appliances are designed to oper-
ate with all combustion air siphoned from outside of the
building and all exhaust gases expelled to the outside. No
additional outside air source is required.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector, fire officials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• The vent system configuration to be used.
• Gas supply piping requirements.
• Provisions for optional heat management system.
• Electrical wiring requirements.
• Framing and finishing details.
• Whether optional accessories—devices such as a fan,
wall switch, LED lighting or remote control—are desired.
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
service technician, service agency or your dealer.
Majestic • JADE32IN, JADE42IN, JADE42IL Installation Manual • 2491-986 Rev. L • 4/19
B. Good Faith Wall Surface
FIREPLACE
OPENING
Figure 2.1 Good Faith Wall Surface Temperatures Above Appliance
If installing a television (TV) above the appliance, see
Section 3 of the appliance Owner's Manual.
NOTICE: Temperatures listed above are taken with a
temperature measuring probe as prescribed by the test
standard used for appliance certification. Temperatures
on walls or mantels taken with an infrared thermometer
may yield increased temperatures of up to 30 degrees or
more depending on the thermometer settings and material
characteristics being measured. Use appropriate finishing
materials that are able to withstand these conditions. For
additional finishing guidelines, see Section 10.
C. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure
Framing material
Pliers
Hammer
Phillips screwdriver Manometer
Gloves
Framing square
Voltmeter
Flat blade screwdriver
Plumb line
Safety glasses
Level
Reciprocating saw
Electric drill and bits: (1/4 in./Phillips #2)
Non-corrosive leak check solution
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulking material (300 ºF minimum continuous exposure
rating)
TO CEILING
95°F
98°F
101°F
48 in.
105°F
42 in.
110°F
36 in.
119°F
30 in.
142°F
24 in.
18 in.
194°F
12 in.
6 in.
MEASUREMENTS FROM
TOP EDGE OF THE OPENING
APPLIANCE FRONT
7
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