TOA Electronics DIRECT VENT 600 User Manual
Page 5
5
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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4
Right Side
Front Corner of
Fireplace Framing
6
¹⁄₂"
(152 mm)
3"
(76 mm)
3"
(76 mm)
12"
(305 mm)
Termination Kit
Combustible Projection
greater than 2
¹⁄₂ inches in length
Horizontal Vent Termination Clearances
Combustible Projection
2
¹⁄₂ inches or less in length
18"
(457 mm)
Ventilated
Soffit
Unventilated
Soffit
12
X
Roof Pitch is X/12
2 FT
MIN.
2 FT MIN.
Lowest
Discharge
Opening
H*
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
Vertical
Wall
Vent
Termination
Storm Collar
Concentric
Vent Pipe
Flashing
1 inch (25.4 mm) Minimum
Clearance to Combustibles
Figure 4
Figure 5
Figure 7
Figure 6
Note: The nailing flanges, combustible members
and screw heads located in areas directly adjacent
to the nailing flanges, are EXEMPT from the 1/2”
clearance to combustible requirements for the
firebox outer wrapper. Combustible framing may be
in direct contact with the nailing flanges and may
be located closer than 1/2” from screw heads and
the firebox wrapper in areas adjacent to the nailing
flanges. Frame the opening to the exact dimensions
specified in the framing details of this manual.
Side
Framing
Unit Nailing Flange
(No clearance to
combustible
framing is required)
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
Unit Being Secured By Its Nailing Flanges
To The Framing
Horizontal Vent Termination Clearances
The horizontal vent termination must have a
minimum of 3" (76 mm) clearance to any
overhead combustible projection of 2
¹⁄₂" (64
mm) or less. See
Figure 5. For projections
exceeding 2
¹⁄₂" (64 mm), see Figure 5. For
additional vent location restrictions refer to
Figure 8 on page 6.
Terminate multiple vent terminations accord-
ing to the installation codes listed at the top of
this page.
Vertical Vent Termination Clearances
VENT TERMINATION CLEARANCES
These instructions should be used as a guide-
line and do not supersede local codes in any
way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z223.1) in the USA or the
current standards of CAN/CGA-B149.1 and -
B149.2 in Canada.
Terminate single vent caps relative to building
components according to
figure 4.
Step 3. (page 9) Install the vent system and
exterior termination.
Step 4. (page 21) Field Wiring
a. Millivolt Appliances – Install the operating
control switch (not factory provided) and bring
in electrical service line for forced air circulating
blower (optional equipment).
b. Electronic Appliances – Field wire and install
operating control switch.
Step 5. (page 21) Install blower kit (optional
equipment).
Step 6. (page 22) Make connection to gas supply.
Step 7. (page 22) Install the logs, decorative
volcanic stone and glowing embers.
Step 8. (page 22) Checkout appliance operation.
Step 9. (page 23) Install glass door frame assembly.
Step 10. (page 23) Adjust burner to ensure
proper flame appearance.
Step 11. (page 23) Install the hoods.
See
Figure 10 on page 7 or Figure 11 on page
8 for corner framing installations. All framing
details must allow for a minimum clearance to
combustible framing members as shown in
Table 2.
Step 2. ROUTING GAS LINE
Route a
¹⁄₂" (13 mm) gas line along the inside of
the right side framing as shown in
Figure 7.
Gas lines must be routed, constructed and
made of materials that are in strict accordance
with local codes and regulations.
All appliances are factory-equipped with a flex-
ible gas line connector and
¹⁄₂ inch shutoff
valve. (See step 6 on page 22).
Note - See
Figure 34 on page 16
for the recess allow-
ances, into exterior walls, of the round, square and
small square horizontal terminations.
Side Elevation View
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
however, each installation is unique resulting in
variations to those described.
See the page numbers references in the follow-
ing steps for detailed procedures.
Step 1. (page 5) Construct the appliance fram-
ing. Position the appliance within the framing
and secure with nailing brackets.
Step 2. (page 5) Route gas supply line to
appliance location.
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired. Re-
move the shipping carton, exposing the front
glass door. Remove the top panel. Remove the
cardboard from underneath the pressure re-
lief plates. Gently depress the outer top cor-
ners of the access panel until the catches "pop"
the panel free, allowing it to swing out and down
to open. Open the two latches (located under
the firebox floor) securing the glass door. Re-
move the door by tilting it outward at the
bottom and lifting it up. Set the door aside
protecting it from inadvertent damage.
See
Figure 55 on page 23.
Step 1. FRAMING
Frame these appliances as illustrated in
Figure 9 on page 7, unless the appliance is
to be installed in a corner
.
The fireplace should be secured to the side
framing members using the unit's nailing flanges
- one top and bottom on each side of the
fireplace front. See
Figure 6. Use 8d nails or
their equivalent.
If the appliance is to be elevated above floor level,
a solid continuous platform must be constructed.
Headers may be in direct contact with the appli-
ance top spacers but must not be supported by
them or notched to fit around them. All construc-
tion above the appliance must be self supporting.
DO NOT use the appliance for structural support.