Desa PC3460NG, PC4670NG User Manual

NATURAL GAS

DECORATIVE PATIO FIRE

OWNER’S OPERATION AND INSTALLATION MANUAL

®

Models

PC4670NG and

PC3460NG

WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury, or
loss of life.

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any
other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical 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.

— Installation and service must be performed by

a qualified installer, service agency, or the
gas supplier.

WARNING: Improper installa­tion, adjustment, alteration,
service, or maintenance can
cause injury or property dam­age. Read the installation,
operating and maintenance,
instructions thoroughly be­fore installing or servicing this
equipment.

WARNING: For Outdoor Use
Only.

Your Decorative Patio Fire is designed for installation in a fully vented, open air patio
area which is constructed of noncombustible materials.

WARNING: Do not use this appliance indoors. It is for outdoor use only. This
appliance produces carbon monoxide (CO). Breathing enough carbon monoxide
(CO) could cause personal injury or death.

Save this manual for future reference.

NATURAL GAS

DECORATIVE PATIO FIRE

SAFETY
INFORMATION

WARNINGS

WARNING ICON G 001

IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper­ate, or service this appliance. Im­proper use of this appliance can
cause serious injury or death from
burns, fire, explosion, and car­bon monoxide poisoning.

DANGER: Carbon monoxide

poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs

of carbon monoxide poisoning resemble the
flu, with headaches, dizziness, or nausea. If
you have these signs, the appliance may not
be working properly. Get fresh air at once!
Have appliance serviced. Some people are
more affected by carbon monoxide than
others. These include pregnant women,
people with heart or lung disease or anemia,
those under the influence of alcohol, and
those at high altitudes.

Natural Gas: Natural gas is odorless. An

odor-making agent is added to the gas. The
odor helps you detect a gas leak. However,
the odor added to the gas can fade. Gas may
be present even though no odor exists.

Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this appliance.

WARNING: A qualified ser­vice person should install and
repair this appliance. Inspect ap­pliance before each use. Have a
qualified service person inspect
this appliance at least annually.
This appliance may require more
frequent cleaning. You must keep
control compartment, burners,
and circulating air passageways
of appliance clean.

WARNING: Any change to this
appliance or its controls can be
dangerous.

WARNING: Do not use in­doors. It is for outdoor use only.
This appliance produces carbon
monoxide (CO). Breathing
enough carbon monoxide (CO)
could cause personal injury or
death.

WARNING: Logs and lava rock
become very hot when in use.
Keep children, adults, and ani­mals away from hot surface to
avoid burns or clothing ignition.
Logs and lava rock will remain hot
for a time after shutdown. Allow
surface to cool completely before
touching appliance or installing
cover.

WARNING: Do not allow chil­dren near this product when op­erating. Especially watch for tod­dlers. Children should be care­fully supervised while in the appli­ance area. They may not under­stand the danger of fire or the
safety precautions of using this
product. They could be severely
injured due to burns.

WARNING: Do not attempt to
disconnect the gas or any gas
fitting while this appliance is in
operation.

WARNING: Do not place cloth­ing, paper products, or any other
flammable materials on or near
this appliance.

WARNING: Fuels used in gas
or oil-fired appliances, and the

products of combustion of such
fuels, contain chemicals known
to the State of California to cause
cancer, birth defects, and/or other
reproductive harm. This warning
is issued pursuant to California
Health & Safety Code Sec. 25249.6.

1. This appliance is only for use with the
type of gas indicated on the rating plate.

2. The installation must conform with lo­cal codes or, in the absence of local
codes, with the National Fuel Gas

Code, ANS Z223.1, NFPA 58.

3. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch

• 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

4. Keep the area around the appliance
clear and free from combustible mate­rials, gasoline, or other flammable va­pors and liquids.

5. Do not place this appliance on grass or
dirt. This may prevent proper safety vent­ing. Only operate this appliance on a
level, outdoor, noncombustible surface.

6. Do not operate this appliance directly
on combustible surfaces such as a
wooden deck or grass lawn. This could
cause severe property damage.

7. Do not operate this appliance directly
under combustible materials such as
tree limbs. They could be damaged or
set on fire.

8. Maintain proper clearance from com­bustible materials.

• Never place this appliance directly

on any combustible surface.

• Make sure combustible materials are

at least 20 feet above appliance. This
includes tree limbs.

• Make sure combustible materials are

at least 4 feet from sides of appliance.

9. Do not install this product in even a par­tially enclosed area, such as a garage or
underneath a patio cover or gazebo.
They could be damaged or set on fire.

10. Do not operate near combustible ma­terials such as vinyl or wood siding on
a home or other structure. They could
be damaged or set on fire.

11. Do not set combustibles on the edge of
the appliance. Items such as paper cups,
plates, and napkins could ignite.

For more information, visit www.desatech.com

2

107214

OWNER’S MANUAL

SAFETY
INFORMATION

(Continued)

12. Do not operate this appliance where ex­cessive wind or drafts are present. The
open flame may be blown outside of the
appliance area. This could burn adults
or children and cause clothing to ignite.

13. Locate gas hose away from areas where
people may trip over it or where it could
be accidentally damaged.

14. Check gas hose before each use. If hose
shows excessive wear or damage, re­place hose assembly before operating
appliance. See Cleaning and Mainte-
nance on page 10 for how to inspect
inlet hose. Use only the replacement
hose listed in this manual.

15. Check burner before each use. If dam­aged, replace burner before operating
appliance. Use only the replacement
burner listed in this manual.

16. Do not block air inlets at the bottom
edge of appliance base.

17. Only use accessories approved for use
with this appliance.

18. Do not use charcoal starting fluid or any
other combustible fluid to “help” ignite
the fire. This could cause personal in­jury or death.

19. Do not burn solid fuel in this appliance.

20. Do not cook anything with this product.
This includes hot dogs, marshmallows,
hamburgers, or any other food. Debris
from food could damage the burner sys­tem and affect its operation. Grease from
food could flame up and cause severe
burns or cause clothing to ignite.

21. Do not burn anything in this product.
Ashes from trash or other combustibles
could damage the burner system and
affect its operation. Airborne ashes could
set fires elsewhere and could cause se­vere burns or cause clothing to ignite.

22. Do not use appliance if any gas con­trols have been exposed to or 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.

23. Do not allow water to contact the lava
rock or logs. Water from rain, sprin­klers, toys, horseplay , etc. can damage
lava rock and logs. When heated, they
may crack, break, or even explode. This
could cause severe injury.

24. Do not leave appliance unattended
while in operation.

25. Do not operate this product around in­toxicated people. They could injure
themselves or others when using this
product.

26. Turn off gas at gas supply when this
appliance is not in use.

27. Use protective cover (included) when
appliance is not in use. Make sure ap­pliance is cool before using cover.

28. Turn appliance off and let cool before
servicing or repairing.

29. Use only original replacement parts.
This appliance must use design-specific
parts. Do not substitute or use generic
parts. Improper replacement parts could
cause serious or fatal injuries.

LOCAL CODES

Install and use appliance with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code, ANS Z223.1, also known as NFPA 54*.

*Available from:
American National Standards Institute, Inc.

New York, NY 10018

National Fire Protection Association, Inc.

Quincy, MA 02269

PRODUCT IDENTIFICATION

Burner

Gas Supply
Hose

Figure 1 - Product Identification

Note:

Appearance of firepit may vary depending on models.

1430 Broadway

Batterymarch Park

Ignitor
Electrode

Thermocouple

Firepit

ON/OFF Switch

Gas Control Button

Ignitor Button

3/8" Female Flare Tube
Fitting (5/8"-18 Thread)

107214

3

For more information, visit www.desatech.com

NATURAL GAS

DECORATIVE PATIO FIRE

UNPACKING

WARNING: Do not remove
the metal data plates attached
to this appliance. The data plates
contain important warnings and
instructions.

1. Remove lava rock and log pack from
carton.

2. Carefully lift firepit out of carton and
gently place at site of installation.

3. Check all items for any shipping dam­age. If damaged, promptly inform
dealer where you bought the product.

Note:

Deterioration or damage due to se­vere weather conditions such as hail, hurri­canes, earthquakes, or tornadoes, or discol­oration due to exposure to chemicals either
directly or in the atmosphere, is not covered
by the Limited Warranty on the back of this
manual. The warranty also does not cover
the following:

• weather damage caused by not using the

protective cover

• chips, cracks, or breakage caused from

dropping, dragging, or hitting firepit.

The surface of the firepit naturally contains
spaces, surface cracks, and variations in color
and texture. The limited warranty does not
cover such surface imperfections.

INSTALLATION

WARNING: Only a qualified
service person must install gas
piping and connect appliance to
gas supply. Follow all local codes.

WARNING: Do not remove
the metal data plates attached
to this appliance. The data plates
contain important warnings and
instructions.

NOTICE: Installation, service, and
repair of this appliance must be
performed by a qualified installer,
service agency, company, or gas
supplier experienced with this
type of gas appliance. Only fac­tory authorized components
listed in these instructions may
be used in accordance with the
manufacturer’s instructions and
all codes and requirements of
the authority having jurisdiction.
Any modifications to this appli­ance, or use of unauthorized com­ponents or accessory items will
void the manufacturer’s warranty,
and may result in a hazardous
condition.

CHECK GAS TYPE

Use only natural gas. If your gas supply is not
natural gas. Call dealer where you bought
appliance.

If your gas supply line does not have a gas
supply shutoff valve, one must be installed.

DECORATIVE GAS PATIO FIRE

SPECIFICATIONS

NATURAL GAS:
RATED PRESSURE* 7.0" W.C.

MINIMUM GAS
PRESSURE* 5.0" W.C

MAXIMUM GAS
PRESSURE* 10.5" W.C.

ORIFICE DRILL
SIZE 24 (.151)"

BTU/HR
OUTPUT 70,000

SHIPPING WEIGHT 220 LBS.

*Measured at entry of flexible supply hose.

Figure 2 - Technical Information Chart

HIGH ALTITUDE DERATE

In the U.S.A., input BTU shall be
derated 4% (1 orifice size) per 1,000
feet for altitudes above 2,000 feet. In
Canada, input BTU shall be derated
10% (2 orifice sizes) at altitudes from
2,000 to 4,500 feet.

LOCATING APPLIANCE

When locating this appliance, follow all
safety information on pages 2 and 3.

Do not use this appliance indoors. It is for
outdoor use only. Do not locate this product
in even a partially enclosed area, such as a
garage or underneath a patio cover or ga­zebo. They could be damaged or set on fire.

Locate this appliance on a level, noncom­bustible surface. Do not place this appliance
on grass or dirt. This may prevent proper
safety venting. Do not operate where wind
or excessive drafts are present.

Maintain proper clearance from combus­tible materials.

• Never place this appliance directly on
any combustible surface.

• Make sure combustible materials are at
least 20 feet above appliance. This in­cludes tree limbs.

• Make sure combustible materials are at
least 4 feet from sides of appliance.

Make sure to locate appliance where gas
hose is out of traffic areas. This will help
prevent people from tripping over the hose.
This will also help prevent accidental dam­age to the hose.

For more information, visit www.desatech.com

4

107214

OWNER’S MANUAL

INSTALLATION

(Continued)

CONNECTING TO GAS
SUPPLY

Installation Items Needed

Before installing appliance, make sure your
installer has the items listed below.

• piping (check local codes)

• sealant (resistant to propane/LP gas)
(May be pipe dope or Teflon tape)

• equipment shutoff valve *

• test gauge connection *

• adjustable (crescent) wrench or pliers

• sediment trap

• tee joint

• pipe wrench

• brass fitting(s) (depending upon gas sup­ply plumbing)

* An CSA/AGA design-certified equipment
shutoff valve with 1/8" NPT tap is an ac­ceptable alternative to test gauge connec­tion. Purchase the optional CSA/AGA de­sign-certified equipment shutoff valve from
your dealer. See Accessory, page 10.

CAUTION: Use only new,
black iron or steel pipe. Inter­nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of 1/2"
diameter or greater to allow
proper gas volume to appliance.
If pipe is too small, undue loss of
pressure will occur.

Installation must include an equipment
shutoff valve, union, and plugged 1/8" NPT
tap. Locate NPT tap within reach for test
gauge hook up. NPT tap must be upstream
from appliance (see Figure 3).

IMPORTANT:

valve in an accessible location. The equip­ment shutoff valve is for turning on and
shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe
could result in a clogged burner injector.

Install equipment shutoff

CAUTION: Use pipe joint seal­ant that is resistant to liquid pe­troleum (LP) gas.

We recommend that you install a sediment
trap in supply line as shown in Figure 3.
Locate sediment trap where it is within
reach for cleaning. Install in piping system
between fuel supply and patio firepit. Lo­cate sediment trap where trapped matter is
not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them
from going into appliance controls. If sedi­ment trap is not installed or is installed
wrong, appliance may not run properly.

CSA/AGA Design­Certified Equipment
Shutoff Valve With

From Gas
Meter (5"
W.C.** to 10.5"
W.C. Pressure)

Tee Joint

Figure 3 - Gas Connection

* Purchase the optional CSA/AGA design­certified equipment shutoff valve from your
dealer. See Accessory, page 10.

** Minimum inlet pressure for purpose of
input adjustment.

Pipe Nipple Cap

Sediment Trap

1/8" NPT Tap*

To
Patio Firepit

3" Minimum

CHECKING GAS
CONNECTIONS

WARNING: Test all gas pip­ing and connections for leaks
after installing or servicing. Cor­rect all leaks at once.

WARNING: Never use an open
flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. Bubbles forming show
a leak. Correct all leaks at once.

Pressure Testing Gas Supply
Piping System

Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)

1. The appliance and its individual shutoff
valve must be disconnected from the
gas supply piping system during any
pressure testing of that system at test
pressures in excess of 1/2 psi (3.5 kPa).

2. Cap off open end of gas pipe where
equipment shutoff valve was connected.

3. Pressurize supply piping system by ei­ther using compressed air or opening
main gas valve located on or near gas
meter.

4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form­ing show a leak.

5. Correct all leaks at once.

6. Reconnect unit and equipment shutoff
valve to gas supply. Check reconnected
fittings for leaks.

107214

Continued

5

For more information, visit www.desatech.com