Roof Jack Installation Manual

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 ashing 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
• SAWandSAWTseriesroofjackswitha5”diameter
inner vent pipe may be used with all models of RG1
Series gas and RO1 series oil furnaces.
S=SlantFlashing:2.5/12slopeexesfrom1/12to
4/12roofslope,4/12exesfrom3/12to5/12.
See Figure 18 (page 12).
• Stainlesssteelroofjacksareavailable.
• RG/ROfurnacesmaybeusedwithroofjacksastallas
170” (except RG1 056 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
ueservicingareplace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 distributor.
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
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. 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
SSAW
T
27
47 - 2
AW= ALL WEATHER
FLASHING
PITCH/12" RISE
0=FLAT
2=2.5/12
4=4/12
MIN. ADJ.
LENGTH
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
SAW(T)2135-(0,2,4)(A,S) 21” - 35”
SAW(T)2747-(0,2,4)(A,S) 27” - 47”
SAW(T)3563-(0,2,4)(A,S) 35” - 63”
SAW(T)5195-(0,2,4)(A,S) 51” - 95”