Suburban NT-24SP Installation Instructions Manual

S U B U R B A N M A N U F A C T U R I N G C O M P A N Y
P o s t O f f i c e B o x 399
Dayton, T e n n e s s e e 37321
DY NATRAIL
INSTALLATION INSTRUCTIONS
FOR MODELS
CER~FIEO
NT-24SP NT-30SP NT-34SP
T h e d e s i g n o f t h e f u r n a c e h a s b e e n c e r t i f i e d f o r i n s t a l l a t i o n i n r e c r e a t i o n a l v e h i c l e s only. I n o r d e r f o r t h e f u r n a c e t o o p e r a t e i n c o n f o r m i t y
w i t h g e n e r a l l y a c c e p t e d s a f e t y r e g u l a t i o n s , t h e i n s t a l l a t i o n i n s t r u c t i o n s m u s t b e f o l l o w e d . F a i l u r e
to
c o m p l y w i t h t h e i n s t a l l a t i o n
i n s t r u c t i o n s w i l l v o i d t h e w a r r a n t y o n t h e f u r n a c e a n d a n y r e s p o n s i b i l i t y o n t h e p a r t o f S u b u r b a n M a n u f a c t u r i n g C o m p a n y .
T h e f u r n a c e w a s i n s p e c t e d b e f o r e
it
l e f t t h e factory. If a n y p a r t s a r e f o u n d t o b e d a m g e d , d o n o t i n s t a l l t h e furnace. I m m e d i a t e l y c o n t a c t
t h e t r a n s p o r t a t i o n c o m p a n y a n d f i l e a c l a i m .
WARNING! Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury or loss of life. Refer to the installation
instructions andlor owners manual provided with this appliance. Installation and service
must be performed by a qualified installer, service agency or the gas supplier.
INSTALLATION INSTRUCTIONS
I
manual.
In Canada, the furnace must be installed in accordance with.
WARNING!
of this appliancemust be made in accordance with
the written instructions provided i n this manual. No agent, representative
or employee of Suburban or other person has the authority t o change,
modify or waive any provision of the instructions contained i n this
CAUTION: If possible, d o not install the furnace t o where the vent can be
Standard z240
-
covered or obstructed when any door on the trailer i s opened. If this is not
2. Standard z240.6.2-M86
-
Electrical Requirements for
possible, then the travel of the door must be restricted i n order toprovide
Recreational Vehicles
a
6w
clearance between the furnace vent and any door whenever
3. Standard CANICSA 2240.4.2-M86
-
Installation Requirements for Propane
the door is open. NOTE: The exhaust temperature of this furnace could
Appliances and Equipment in Recreational Vehicles.
discolor or warp some materials. You should verify that the material used
4. CAN/CGA installation
'Odes.
on the coach door, panel, or cover will not discolor or warp from the exhaust
5. applicable local
'Odes
and regulations.
3. Furnace must be electrically grounded in accordance with the latest ed~tion
of the National Electrical Code ANSIINFPA No 70
Th~s unit is equlpped with an electric ignitor device that has an energy
consumption of . l amp @12 volts D C.
temperature whenever any door, panel, or cover i s i n the open position. Return Air
CAUTION: Due t o the differences i n vinyl siding, this appliance should not There are three methods described below for installing the furnace. Regardless
be installed on vinyl siding without first consulting with the manufacturer of of the method you choose, we require that a permanent opening be provided in
the siding or cutting the siding away from the area around the appliance the interlorcabinetryof the coach directly in front of the furnace. The opening must
vent. allow for free, unobstructed removal of the furnace. This opening may be used as
CAUTION: In any installation i n which the vent o f this appliance can be
covered due t o the construction of the RVor some special feature of the RV
such as slide out, pop-up, etc. always insure that the appliance cannot be
operated by setting the thermostat t o the positive "OFF" position and
shutting off all electrical and gas supply t o the appliance. Never operate
furnace with vent covered.
a means of providing circulating return air to the furnace. other openings may be
used as well. The minimum return air to the furnace must total 55 square inches
free area It is important that adequate return air be provided to assure normal
heating and operation of the furnace. Failure to provide the minimum return airwill
cause erratic furnace cycling.
A. INSTALLATION DIRECTLY AGAINST OUTER SKIN OF COACH
NOTE: These furnaces must be installed and vented as described in this manual
(See Figure 1)
so that the negative pressure created by the air circulating (return air) fan cannot
affect the combustion air intake or ventina of any other a ~ ~ l i a n c e . It is imoerative
I
wall thickness for this type instal'ati0n
is
3".
1
that the products ofcombustion be prdpezy venied to theatmosphere and that all
the furnace near lengthwise center of the Do not install the
combustion air supplied to burner be drawn from the outside atmosphere. (See
furance with the vent facing toward the end of the coach,
'Installing Vent Assembly'.)
2. Choose a location for installation out of the way of wires, pipes, etc. which
IMPORTANT: If this furnace is to be connected to a common duct system also
might interfere with the installation, Adhere to ,he
clearances from ,he
sewing a cooling unit, a manual or automatic damper is required to prevent any
cabinet to combustible construction as listed in Table
cold conditioned air from circulating back into the furnace. Cold air passing over
the furnace combustion chamber during theoperationofthecooling result
NOTE: Side and top clearances may be 0" for through the wall installations up to
in the formation of condensation inside the furnace combustion chamber This
a maximum wall thickness
Of
3". (See Figure
condensation may promote corrosion and premature failure of the combustion
chamber.
NOTE: These furnaces shall be installed so the electrical components are
protected from water.
These furnaces are design certified for PropaneILP gas only. Do not attempt to
convert to natural gas.
Gas supply pressure for purposes of input adjustment.
Minimum
-
11" W.C.'
Maximum
-
1 3 W.C.'
(W.C.'
-
Water Column)
3. When an appliance is installed directly on carpeting, tile or other combustible
material, other than wood flooring, the appliance shall be installed on a metal or
wood panel extending the full width and depth of the appliance. If preferred, the
carpeting, tile or combustible materials, other than wood may be cut away the full
length and depth of the appliance plus the appliance minimum clearances to
combustibles. (See Table 1
.)
4. Cut an opening through the inner wall 12 7/16 x 13". This will allow the rear of
the furnace to be installed against the outer skin of the coach. (See Figure 1 .)
5. Cut two 2 114" diameter holes through the outer skin of coach as shown in
Figure 1
In the U.S.A., the installation of the furnace must be in accordance wlth local
6. put furnace in place, making sure that rear of furnace cabinet
IS
as close to
codes and regulations. In the absence of local codes and regulations, refer to the
outer skin of coach as possible and still assure proper vent tube overlap. (See
latest ed~tion of:
Installing Vent Assembly).
1. Standard for Recreat~onal Vehicles ANSl A-1 19.2lNFPA 501 C.
2. National Fuel Gas Code ANSl 2223.1.
7 . Fasten furnace to floor of coach using the two (2) holes provlded in the front
plenum area of furnace cabinet. (See Figure 1.)
8.
Install vent assembly. (See instructions for installing vent.)
Form No. 2469-C