Suburban SA25N Owner'S Operation And Installation Manual Download Page 6

11

Figure 16 - Equipment Shutoff
Valve

Figure 17 - Attaching Front Grille to
Cabinet

Figure 17A

INSTALLATION

(Continued)

Pressure Testing Furnace Gas
Connections

1. Open equipment shutoff valve (see

Figure 16).

2. Open main gas valve located on or

near gas meter.

3. Check all joints from equipment

shutoff valve to gas inlet pipe. Apply
mixture of liquid soap and water to
gas joints. Bubbles forming show a
leak.

4. Correct all leaks at once.

5. Turn on furnace (see 

Operating Fur-

nace).

 Check the rest of the internal

joints for leaks.

6. Turn off furnace (see 

To Turn Off Gas

to Furnace).

CONNECTING TO
ELECTRICAL SUPPLY

IMPORTANT:

 Follow all local codes when

connecting electricity to furnace. In the
absence of local codes, refer to the latest
edition of the 

National Electrical Code

ANS/NFPA No. 70. 

If you are not familiar

with wiring codes, have a qualified
electrician do the wiring.

It is best to plug furnace into a separate
and permanent electrical line circuit.

1. Supply a 120-volt, 60-cycle, grounded

outlet at furnace location.

2. The furnace has a three-pronged

(grounded) plug. Use only a
grounded, three-prong outlet.

IMPORTANT: 

Some local codes require

rigid or semi-rigid conduit or metallic
sheathe cable. When using a semi-rigid
or metallic sheathe cable, the installer
must terminate the supply wire in the
terminal box opening.

Perform ance Check

Plug furnace into three-pronged outlet
and set thermostat to call for heat. If
ignitor remains on after main burner igni-
tion or if the valve chatters, you may have
reversed polarity.

1. Unplug furnace.

2. Turn off electricity to outlet.

3. Reverse 120-volt connections inside

outlet.

4. Turn on electricity to outlet.

5. Plug in furnace and set the thermostat

to call for heat. Ignitor should turn off
after main burner ignites. If ignitor
does not turn off, or if valve continues
to chatter, turn off furnace and unplug.
Call a qualified service person.

ATTACHING CABINET
FRONT GRILLE

 

CAUTION: Do not operate fur-

nace with front cover removed or
mounted wrong. If front cover is
mounted wrong, you cannot secure
it to cabinet with screws.

1. Hook top of front grille over top cabi-

net flange.

2. Secure the sides of front grille to lower

sides of furnace cabinet with two
screws provided (see Figure 17).

IMPORTANT: 

You may have removed

furnace from furnace cabinet during
installation. You must correctly install
furnace within cabinet. If not, front grille
will not properly attach to cabinet. Make
sure gaskets for intake and exhaust tubes
are in place. Make sure intake and
exhaust tubes extend into vent caps on
cabinet back and are secured with screws
(see Figure 17A). Make sure you secured
flange on bottom of furnace to flange on
bottom front of cabinet.

12

Figure 18 - Equipment Shutoff Valve

OPERATING
FURNACE

WARNING: Furnace burner,

combustion chamber, and exhaust
port are very hot during operation.
Keep children and adults away from
hot surfaces to avoid burns and
clothing ignition. Carefully supervise
young children when they are in the
same room as furnace. Furnace will
remain hot for a time after shutdown.
Let surface cool before touching.

WARNING: Do not operate fur-

nace with front cover removed.
Unsafe operation could result.

CAUTION: Do not block circu-

lating air openings in the louver of
the front cover. This is necessary for
furnace to operate properly.

NOTICE: If operating furnace for the
first time, a slight odor will occur.
This odor will go away after a few
hours of operation.

FOR YOUR SAFETY

READ BEFORE

LIGHTING

WARNING: If you do not follow

these instructions exactly, a fire or
explosion may result causing
property damage, personal injury, or
loss of life.

A. This appliance does not have a

pilot. It is equipped with an ignition
device which automatically lights
the burner. Do not try to light the
burner by hand.

B. BEFORE OPERATING smell all

around the appliance area for gas.
Be sure to smell next to the floor
because some gas is heavier than
air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch;

do not use any phone in your
building.

• Immediately call your gas

supplier from a neighbor's
phone. Follow the gas supplier's
instructions.

• If you cannot reach your gas

supplier, call the fire department.

C. Use only your hand to turn the

handle on the equipment shutoff
valve. Never use tools. If the handle
will not turn by hand, don't try to
repair it. Call a qualified service
technician. Force or attempted
repair may result in a fire or
explosion.

D. Do not use this appliance if any

part has been under water.
Immediately call a qualified service
technician to inspect the appliance
and to replace any part of the
control system and any gas control
which has been under water.

OPERATING

INSTRUCTIONS

WARNING: Always follow lighting

instructions. Never attempt to light
burner with a match or butane torch.

1. STOP! Read the safety informa-

tion, column 1.

2. Set the thermostat to lowest

setting.

3.  Turn off all electric power to the

furnace.

4. Turn equipment shutoff valve

clockwise to 

OFF 

position

(see Figure 18).

5. Wait five (5) minutes to clear out

any gas. Then smell for gas,
including near the floor. If you
smell gas, STOP! Follow "B" in the
safety information, column 1. If you
don't smell gas, go to next step.

6. Turn equipment shutoff valve

counterclockwise to 

ON 

po-

sition (See Figure 18).

7. This furnace is equipped with an

i g n i t i o n   d e v i c e   w h i c h
automatically lights the burner. Do
not try to light the burner by hand.

8. Plug in furnace.

9. Set thermostat to desired setting. If

thermostat is set above room tem-
perature, the blower will come on.

10. Allow approximately 45 seconds

for ignition to occur. When ignition
occurs, the glo-bar will stay on for
a short period of time. The flame
sensing probe will sense the
burner flame and shut off glo-bar.

If ignition does not occur within 22
seconds, the ignition control will
attempt to light burner three times.
This will take about two minutes. If
ignition does not occur, the
ignition control will lock out the
glo-bar and valve circuit. Air in the
gas line or a short gas interruption
will prevent furnace from igniting. If
this happens, turn thermostat off
and wait 5 minutes. Turn the
thermostat back on. The furnace
will try to ignite again.

11. If the furnace still does not ignite,

follow instructions 

To turn Off Gas

to Furnace.

 Call a qualified service

person. Do not attempt to restart
furnace.

TO TURN OFF GAS

TO FURNACE

1. Set thermostat to lowest setting.

2. Turn equipment gas valve clock-

wise 

to OFF position. Do not

force equipment gas valve.

3. Unplug furnace if service is to be

performed.

To Shut Dow n Furnace for an
Extended  Period  of  Tim e

1. Turn equipment gas valve clock-

wise 

to OFF position. Do not

force equipment gas valve.

2. Set Thermostat on OFF.

 

CAUTION: Do not try to adjust

heating levels by using the
equipment shutoff valve.

THERMOSTAT

CONTROL

OPERATION

The thermostat responds to the room
temperature. When the room temperature
drops below the thermostat setting, the
thermostat turns the furnace burner and
blower on. When the room temperature
goes above the thermostat setting, the
thermostat turns the furnace burner off.
The blower will continue to blow about two
to three minutes after the burner goes out.
The thermostat keeps the room at a
constant temperature.

Summary of Contents for SA25N

Page 1: ...on or near the appliance Never place any objects on the furnace Surface of furnace becomes very hot when running furnace Keep children and adults away from hot surface to avoid burns or clothing ignit...

Page 2: ...re you have all items below electric drill drill bits Phillips screwdriver hammer pipe wrench stud locator or small finishing nails equipment shutoff valve supplied test gauge connection see Figure 15...

Page 3: ...re no pipes wiring or anything else that wouldinterferewith installing thermostat Do not mount thermostat to stud If there are any obstructions choose a new location 3 Provide two 18 gauge insulated s...

Page 4: ...iquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once 13 Caulk around pipe or nipple This pre vents cold air entering knockout hole 8 INSTALLATION Continued Providin...

Page 5: ...15 Install an equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to male threads...

Page 6: ...explosion may result causing propertydamage personal injury or loss of life A This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not...

Page 7: ...a qualified service person Furnace may need more frequent cleaning due to excessive lint from carpeting bedding material pet hair etc CAUTION Labelall wiringprior to disconnection when servicing contr...

Page 8: ...e is established the sensing probe will sense the presenceofburnerflame and open the glo bar circuit The glo bar will then stop glowing It is important to determine the type of problem being experienc...

Page 9: ...ty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call Suburban Manufacturing Company Custo...

Page 10: ...MODEL KEY NO PART NUMBER DESCRIPTION QTY KEY NO PART NUMBER DESCRIPTION QTY 1 121357 Screw 6 x 5 8 4 14 021175 Combustion Chamber Radiation 2 232773 Module Board 1 Shield Assembly with Gasket 1 2A 232...

Page 11: ...N QTY 1 350086 Room Air Wheel 1 15 390296BK Combustion Air and Motor 2 121252 Screw 10 x 3 8 5 Cover Assy Housing 1 3 121247 Screw 2 56 x 5 8 2 16 070386 Combustion Air Housing Gasket 1 4 230510 Micro...

Page 12: ...ew 6 x 3 8 2 17 230560 Limit Switch 1 2 231950 Flame Sensing Probe 1 18 062563 Ignition Control Mounting 1 3 063018 Glo Bar Retainer 1 19 232773 Module Board 1 4 120158 Screw 8 x 3 8 6 19A 232774 Wiri...

Page 13: ...10 24 x 1 2 2 2 121252 Screw 10 x 3 8 8 16 070362 Universal Bushing 1 3 350088 Room Air Wheel CW Rotation 1 17 070406 Combustion Air Housing Gasket 1 4 390328BK Room Air Blower Housing 18 120158 Scre...

Page 14: ...XCLUSIVE AND MAY NOT BE ALTERED ENLARGED OR CHANGED BY ANY DISTRIBUTOR DEALER OR OTHER PERSON WHOMSOEVER ALL REPLACEMENT PARTS ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING TIME PERIOD OF THIS WA...

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