Intertherm M1B Series, Руководство по установке, Страница: 11 / 36

11
RooF JacK InstallatIon
Required ceiling and roof cut-out openings must be
carefully located to avoid misalignment of the furnace
and Roof Jack. notE: Install only Roof Jack Assemblies
listed in Table 4 on this heating appliance.
Roof Jack selection
1. Determine depth of ceiling cavity from center of roof
opening to center of ceiling opening (Dimension A in
Figure 16 ).
2. Determine ceiling height and subtract height of furnace
(Dimension B in Figure 16 ).
3. Add dimensions A + B (and X from Table 5, (page
12) & Figure 6 if slant deck flashing is used). The
total length of [A] + [B] + [X] must be within the minimum
and maximum range of the Roof Jack listed in Table 4 .
Application Notes
• FAW, FAWT, SAW and SAWT Series Roof Jacks with a
5” diameter inner vent pipe may be used with all models
of M1 Series gas and M5 Series oil furnaces.
F = Flat Flashing: flexes from 0/12 to 1/12 roof slope.
See Figure 17 (page 11) .
S = Slant Flashing: 2.5/12 Slope flexes from 1/12 to
4/12 roof slope, 4/12 flexes from 3/12 to 5/12.
See Figure 18 (page 12) .
• Stainless steel roof jacks are available.
• M1/M5 furnaces may be used with roof jacks as tall as
170” (except M1M 056 & M1B 066 models, which are
limited to 120”). An internal roof jack extension (p/n
901935 - 10”, p/n 903107 - 18”) can be used to increase
roof jack height. All connections inside the home must
be made below the ceiling.
• This furnace must never be connected to a chimney
flue servicing a fireplace or other appliance designed
to burn solid fuel.
notE: If the roof jack crown is covered or blocked
with snow, the furnace will not operate properly. If the
home is located in regions where snow accumulation
exceeds 7” (HUD snowload zones) use an external roof
jack extension (p/n 901937). Extensions are optional
accessories and may be purchased through your
NORDYNE distributor.
Figure 15
FUEL LINE HOLES
MTG. PLATE TABS
SLIDE FURNACE
BACK AGAINST
MTG. PLATE
SECURE FURNACE
WITH 2 FASTENERS
AT FRONT CORNER HOLES
SUPPLY
AIR DUCT
Figure 15. “a” cabinet Furnace on coil cabinet
Figure 16
ROOF JACK
SLANT DECK
FLASHING
PITCHED
ROOF
CEILING
CEILING
CAVITY
Roof
Opening
"X" (SEE TABLE 5)
Flue Pipe
Combustion Air Pipe
56" or 76"
Furnace
“A”
“B”
Figure 16. ceiling cavity Depth
Figure 17
Figure 17. Example of Flat Jack with Flashing
ROOF JACK
SLANT DECK
FLASHING
PITCHED
ROOF
CEILING
ROOF
OPENING
"X" (SEE TABLE 5)
CEILING
CAVITY
CEILING
OPENING
Table 4
Table 4. Roof Jack assemblies
S S AW T 27 47 - 2
AW= ALL WEATHER FLASHING
PITCH/12" RISE
0=FLAT
2=2.5/12
4=4/12
MIN. ADJ.
LENGTH
F = FLAT FLASHING
S = SLANT FLASHING
TYPE:
BLANK = NON-TRANSIT
T= TRANSIT MODE
MAX. ADJ.
LENGTH
FLUE STEEL TYPE
A= ALUMINIZED
S=STAINLESS
MoDEl nuMBER
aPPRoX. lEnGtH
BEloW FlasHInG
(F,S)AW(T)1523-(0,2,4)(A,S) 15” - 23”
(F,S)AW(T)2135-(0,2,4)(A,S) 21” - 35”
(F,S)AW(T)2747-(0,2,4)(A,S) 27” - 47”
(F,S)AW(T)3563-(0,2,4)(A,S) 35” - 63”
(F,S)AW(T)5195-(0,2,4)(A,S) 51” - 95”