Monument Grills Denali 425 Quick reference guide

1
Liquid Propane Gas Grill
Note to Consumer
Leave this Owner’s Manual in a convenient
place for future reference.
Customer Service Helpline:
For parts ordering, call:
1-888-980-4933
MFG No.:D425
UPC No.: 856597007867
Please make sure the cylinder valve connection
device shall properly and safely mate with the
connection device attached to the inlet of the
pressure regulator.
WARNING:
Read this Owner’s manual carefully and be sure
your gas grill is properly assembled, installed
and maintained. Failure to follow these
instructions could result in serious injury and/or
property damage. This gas grill is intended for
outdoor use only and is not intended to be
installed in or on recreational vehicles or boats.
Note to Installer
Leave this Owner’s Manual with the customer
after delivery and/or installation.
• Parts
• Assembly
• Safety Rules
• Use and Care
• Troubleshooting
ASSEMBLY & OPERATING INSTRUCTIONS
C045246-A0
425

2
WARNING
Your grill will get very hot. Never lean over the
cooking area while using your grill. Do not touch
cooking surfaces, grill housing, lid or any other
grill parts while the grill is in operation, or until
the gas grill has cooled down after use.
Failure to comply with these instructions may
result in serious bodily injury.
One-Year Full Warranty on Grill
If this grill fails due to defective material or workmanship
within one year from the date of purchase, call 1-888-
980-4933 to arrange for a free repair (or replacement if
repair proves impossible).
8-Year Limited Warranty on Stainless Steel Burners
For eight years from the date of purchase, any stainless
steel burner that rusts through will be replaced free of
charge. After the first year from the date of purchase, you
pay for labor if you wish to have it installed.
All warranty coverage excludes ignitor batteries and grill
part paint loss, discoloration or rusting, which are either
expendable parts that can wear out from normal use
within the warranty period, or are conditions that can be
the result or normal use, accident or improper
maintenance.
All warranty coverage is void if this grill is ever used for
commercial or rental purposes.
All warranty coverage applies only if this grill is used in
the North America.
This warranty gives you specific legal rights, and you
may have other right which vary from state to state.
The warranty is only valid for original purchasers with
proof of purchase from authorized retailers. Any product
bought second hand or through an unauthorized retailer,
will not be covered by warranty. It is the duty of the
purchaser to verify that a retailer is authorized. A
purchase on Amazon or other marketplace internet
retailer from any entity other than Monument Grills is not
an original purchase and will not qualify for a warranty
WARNING
Combustion by products produced when using
this product contain chemicals known to the
State of California to cause cancer, birth defects,
or other reproductive harm.
WARNING
Failure to comply with these instructions could
result in a fire or explosion that could cause
serious bodily injury, death, or property damage.
WARNING
1. Do not store or use gasoline or
other flammable liquids or
vapors in the vicinity of this or
any other appliance.
2. An LP cylinder not connected for
use shall not be stored in the
vicinity of this or any other
appliance.
DANGER
If you smell gas:
1. Shut off gas to the appliance.
2. Extinguish any open flame.
3. Open lid.
4. If odor continues, keep away
from the appliance and
immediately call your gas
supplier or your fire department.
Grill Installation Codes
The installation must conform with local codes or, in the
absence of local codes, with either the national fuel gas
code, ANSI Z 223.1/NFPA S4, Natural gas and propane
installation code, CSA B149.1, or propane storage and
handling code, B149.2, or the standard for Recreational
vehicles, ANSI A 119.2, and CSA Z240 RV series
recreational vehicle code, as applicable.
LP gas grill models are designed for use with a standard
20 lb. Liquid Propane Gas tank, not included with grill.
Never connect your gas grill to an LP gas tank that
exceeds this capacity.
Grill Warranty
Safety PrecautionsTable of Contents
Warranty-------------------------------------------------2
Safety Precautions---------------------------------3~4
Hardware List-------------------------------------------5
Assembly Diagram -----------------------------------6
Assembly List-------------------------------------------7
Assembly Instructions ---------------------------8~18
Lighting Instructions ----------------------------19~20
Digitemp Display&APP Instructions --------21~23
Cleaning and Maintenance -------------------24~25
Troubleshooting---------------------------------------25
Part Diagram-------------------------------------------26
Part List--------------------------------------------------27
Cooking Instruction------------------------------------28
Cooking Chart------------------------------------------29

3
• Have your LP gas tank filled by a reputable
propane gas dealer and visually inspected and
re-qualified at each filling.
• Do not store a spare LP gas tank under or
• Never fill the tank beyond 80 percent full . If this
information is not followed exactly a fire causing
death or serious injury may occur.
• Always keep LP gas tanks in an upright position.
• Do not store (or) or use gasoline or other
flammable vapors and liquids in the vicinity of this
gas grill.
• Do not subject the LP gas tank to excessive heat.
• Never store an LP gas tank indoors. If you store
your gas grill in the garage or other indoor
location, always disconnect the LP gas tank first
and store it safely outside.
• Place dust cap on cylinder valve outlet whenever
the cylinder is not in use. Only install the type of
dust cap on the cylinder valve outlet that is
provided with the cylinder valve. Other types of
caps or plugs may result in leakage of propane.
• LP gas tanks must be stored outdoors in a well-
ventilated area and out of reach of children.
Disconnected LP gas tanks must not be stored in
a building, garage or any other enclosed area.
• When your gas grill is not in use the gas must be
turned off at the LP gas tank.
• The pressure regulator and hose assembly must
be inspected before each use of the grill. If there
is excessive abrasion or wear or if the hose is cut,
it must be replaced prior to the grill being used
again.
• Keep the gas regulator hose away from hot grill
surfaces and dripping grease. Avoid unnecessary
twisting of hose. Visually inspect the hose prior to
each use for cuts, cracks, excessive wear or
other damage. If the hose appears damaged do
not use the gas grill. Call 1-888-980-4933 for
assistance.
•Never light your gas grill with the lid closed or
before checking to ensure the burner tubes are
fully seated over the gas valve orifices.
•Never allow children to operate your grill.
A tank of approximately 12 inches in diameter by 18-
1/2 inches high is the maximum size LP gas tank to
use. You must use an OPD gas tank which offers
an Overfill Prevention Device.
This safety feature prevents the tank from being
overfilled which can cause malfunction of the LP gas
tank, regulator and/or grill.
The LP gas tank must be constructed and marked in
accordance with specifications of the U.S. Dept. of
Transportation (DOT). In Canada, the LP gas tank
must meet the National Standard of Canada ,Can
CSA –B339 , Cylinders , spheres and Tubes for
Transportation of Dangerous Goods and
Commission .
1. The LP gas tank must have a shutoff valve,
terminating in an LP gas supply tank valve outlet,
that is compatible with a Type 1 tank connection
device. The LP gas tank must also have a safety
relief device that has a direct connection with the
vapor space of the tank.
2. Always keep LP gas tanks in an upright position.
The tank supply system must be arranged for vapor
withdraw.
3. The LP gas tank used must have a collar to
protect the tank valve.
Proper Placement and Clearance of Grill
Never use your gas grill in a garage, porch, shed,
breezeway or any other enclosed area. Your gas
grill is to be used outdoors only, at least 24 inches
from the back and side of any combustible surface.
Your gas grill should not be used under overhead
combustible construction . Do not obstruct the flow
of ventilation air around the gas grill housing.
• Do not install this outdoor gas grill in or on
recreational vehicles or boats
• Keep outdoor gas grill area clear and free from
combustible materials, gasoline and other
flammable vapors and liquids
• Do not obstruct the flow of combustion and
ventilation air. Check for this each time prior to using
grill.
• Never connect an unregulated LP gas tank to your
gas grill. The gas regulator assembly supplied with
your gas grill is adjusted to have an outlet pressure
of 11” water column (W.C.) for connection to an LP
gas tank.
• Only use the regulator and the hose assembly
supplied with your gas grill. Replacement regulators
and hose assemblies must be those specified in this
manual.
Safety Precautions

4
WARNING
A strong gas smell, or the hissing sound of gas
indicates a serious problem with your gas grill or
the LP gas tank. Failure to immediately follow the
steps listed below could result in a fire or
explosion that could cause serious bodily injury,
death, or property damage.
• Shut off gas supply to the gas grill.
• Turn the control knobs to OFF position.
• Put out any flame with a proper fire
extinguisher.
• Open Grill Lid.
• Get away from the LP gas tank.
• Do not try to fix the problem yourself.
• If odor continues or you have a fire you can not
extinguish, call your fire department. Do not call
near the LP gas tank because your telephone is
a form of electrical device and could create a
spark resulting in fire and/or explosion.
CAUTION: Spiders and small insects occasionally
spin webs or make nests in the grill burner tubes
during transit and warehousing. These webs can lead
to gas flow obstruction which could result in a fire in
and around burner tubes. This type of fire is known as
“FLASH-BACK” and can cause serious damage to
your grill and create an unsafe operating condition for
the user.
Although an obstructed burner tube is not the only
cause of “FLASH-BACK”, it is the most common
cause.
To reduce the chance of “FLASH-BACK”, you must
clean the burner tubes before assembling your grill,
and at least once a month in late summer or early fall
when spiders are most active. Also perform this burner
tube cleaning procedure if your grill has not been used
for an extended period of time.
See Cleaning Burner Tubes and Burner Ports on
page # 23
NOTE: The normal flow of gas through the regulator
and hose assembly can create a humming noise. A
low volume of noise is perfectly normal and will not
interfere with operation of the grill. If humming noise
is loud and excessive you may need to purge air
from the gas line or reset the regulator excess gas
flow device. This purging procedure should be done
every time a new LP gas tank is connected to your
grill. For help with this procedure refer to page 22,
Item 4 of “If Grill Still Fails To Light”, or call the
Customer Service Helpline 9 AM to 6 PM CDT at: 1-
888-980-4933.
Visually check the burner flames prior to each use.
The flames should look like picture, if they do not,
refer to the cleaning Burner Tubes and Burner Ports,
see page 23 of this manual.
CAUTION: Beware of Flash-Back
Burner Flame Check
WARNING
Pls ensure cleaning the flame tamer/cooking
grid/grease pan/tray after each use. Failure to
comply this could result in a fire or explosion that
could cause serious bodily injury, death, or
property damage.

5
The following table illustrates a breakdown of the hardware pack. It highlights what components are used in
the various stages of assembly.
Contents for Hardware Pack
Tools required for assembly
Philips Head Screwdriver (not included).
Note: The left and right sides of the grill are on your left and right as you face the front of the grill.
Philips Head Screwdriver

6
AA
AA
AA
AA
AA
Model Denali 425 Assembly Diagram

7
Model Denali 425 Assembly List

8
Assembly Instructions
Figure 1
Please insert Locking Caster(No.21) into the bottom plate(No.10).
Figure 2
Half screw out the screws in the bottom plate, then put
Locking Caster(No.7)and Locking Caster(No.11)onto
the relevant screw holes and screw tightly.

9
4 × A
Figure 3
Figure 4
Install Back Panel, Bottom(No.9) onto
the relevant place with four B screws.
Half screw out the screws in the bottom and
side plates, then put Triangle Bracket(No.25)
onto the relevant screw holes and screw tightly.

10
4 × F
Figure 5
Figure 6
Install Cart Frame, Front(No.8) onto the
relevant place with four A screws.
Attention: magnet downward.

11
4 × A
12 × E
Figure 7
Screw the grill body and the cart tightly with four B screws.
Figure 8
Install Side Shelf End Cap(No.12) onto the Side Burner Cooking Grid(No.14)
& Side Shelf,Lift(No.15) and tighten it with twelve E screws.
2
1
2
1

12
2 × A
2 × D
2 × E
Figure 9
1.Half screw out the three big screws on the grill body, then put Side
Shelf,Right(No.16)onto the relevant screw holes and screw tightly.
2.Screw Side Shelf,Right(No.16)tightly with B screw and D spacer
inside the grill body.
Figure 10
3
21
1.Install Display Screen Baffle(No.17) onto Side Shelf,Right(No.16) and tighten it
with two E screws.
2.Connect Battery Box female(No.26A) with I,Battery Box male(No.26B)with Knob
Light Panel Wire(No.31) and Fire Box Temperature Sensor Wire(No.30) with II.

13
2 × A
2 × D
2 × G
Figure 12
1. Insert Side Shelf,Lift(No.15), Control Knob(No.23) and LED knob light
Panel(No.24) as the figure shows.
2. Insert the wire as the figure shows.
1.Half screw out the three big screws outside the grill body, then put Side
Shelf,Lift(No.15) onto the relevant screw holes and screw tightly.
2.Screw Side Shelf,Lift(No.15) tightly with B screw and D spacer inside the grill body. Figure 11

14
1 × F
Figure 14
Half screw out the screw in Side Burner Nozzel Seat(No.33), then
put it into the hole of Side Shelf,Lift(No.15) and screw tightly.
Fixed Valve Converter Bracket(No.32) onto the right plate with one A screw.
Figure 13

15
2 × F
C
C
Figure 15
Figure 16
1.Put the C part into the relevant hole in the bottom plate.
2.Put Cabinet Door(No.6) into the C part.
3.Then put the door into by pressing the flexible axis upward.
Install Temperature Sensor Cover(No.27) onto Fire Box(No.2) with two A screws.
2 × C

16
2 × F
1
23
Figure 17
Figure 18
1.Install Grease Box Bracket(No.20) onto Grease Tray(No.5) with two A screws.
2.Put Foil Tray(No.18) and Grease Box(No.19) into Grease Box Bracket(No.20).
3.Put the grease tray into the grill body.
Put Cooking Grid With Hole(No.3), Warming Rack(No.4) ,Side Burner
Cooking Grid(No.14) and Flame Tamer(No.22) into the relevant place.

17
Install Gas-jar Fixing Line(No. 13) onto the bottom plate. Figure 19

18
Connecting LP Gas Tank to LP Grill
1. Place foot ring of 20 lb tank into the hole in bottom
panel. Make sure the tank valve is in OFF
position.(Fig.26).
2. Check the tank valve to ensure it has proper
external mating threads to fit the hose and regulator
assembly provided.
3. Make sure all burner valves are in OFF position.
4. Inspect the valve connection port and regulator
assembly. Look for damage or debris. Remove any
debris. Inspect hose for damage. Never use
damaged or plugged equipment.
5. When connecting regulator and hose assembly to
tank valve hand tighten quick coupling nut clockwise
to a full stop (Fig.25) Do not use a wrench to tighten
because it could damage the quick coupling nut and
result in a hazardous condition.
6. Open tank valve fully (counterclockwise). Use a
soapy water solution to check all connections for
leaks before attempting to light your grill. If a leak is
found, turn tank valve off and do not use your grill
until the leak is repaired.
CAUTION: When the appliance is not in use, gas
must be turned off at the supply tank.
Figure 21
Regulator Connection
Figure 20
Congratulations
Your gas grill is now ready for use. Before the
first use and at the beginning of each season
(and whenever the LP gas tank has been
changed):
1. Read all safety, lighting and operating
instructions.
2. Check gas valve orifices, burner tubes and
burner ports for any obstructions.
3. Perform gas leak check according to
instructions found on next page of the manual.

19
LIGHTING INSTRUCTIONS FOR SIDE BURNER
1. Open side burner lid fully.
2. Push and turn side burner knob to IGNITE/HI
position. At the same time, press and hold
electronic ignition button for 3 to 5 seconds to
light burner.
3. If the side burner does not light after 5 seconds,
turn knob to OFF. Turn gas OFF at LP tank and
wait 5 minutes for gas to clear. Then turn gas
ON at tank and repeat step 2.
4. If burner still does not light, see Match Lighting
section and If Grill Still Fails to Light section on
following page.
Grill Lighting Instructions for Main Burners
1. Do not smoke while lighting grill or checking gas
supply connections.
2. Be sure that LP gas tank is sufficiently full.
3. Be sure all gas connections are securely tightened.
4. Turn on gas supply
5. Open the grill main lid and side burner lid.
6. Push and turn any main burner knob to IGNITE/HI
position, at the same time, press and hold
electronic ignition button for 3 to 5 seconds to light
burner.
7. If the burner does not light after 5 seconds, turn
knob to OFF. Turn gas OFF at LP tank and wait 5
minutes for gas to clear. Then turn gas ON at tank
and repeat step 6.
8. If burner still does not light, see Match Lighting
section and If Grill Still Fails to Light section on
following page.
1. Make a 50/50 (soap/water) mild soap solution.
2. Turn the control knobs to full OFF position. then
turn gas ON at supply tank.
3. Apply the soap solution with a clean brush to all
gas connections. See below. If growing bubbles
appear in the solution the connections are not
properly sealed. Check each fitting and tighten or
repair as necessary.
4. If you have a gas connection leak you cannot
repair, turn gas OFF at supply tank, disconnect
fuel line from your grill and call 1-888-980-4933 or
your gas supplier for repair assistance.
5. Also apply soapy solution to the tank seams. See
below. If growing bubbles appear, shut tank OFF
and do not use or move it! Contact an LP gas
supplier or your fire department for assistance.
WARNING
Failure to open grill lid during the lighting
procedure could result in a fire or explosion
that could cause serious bodily injury, death,
or property damage.
USING THE SIDE BURNER
Inspect the gas supply hose prior to turning the
gas “ON”. If there is evidence of cuts, wear or
abrasion, it must be replaced prior to use. Do not
use the side burner if the odor of gas is present.
WARNING: Always keep your face and body as
far away from the burner as possible when
lighting.
Gas Connection Leak Check
Gas Tank Leak Check
Checking for LP gas leaks
Never test for leaks with a flame. Prior to first use, at
the beginning of each season, or every time your LP
gas tank is changed, you must check for gas leaks.
Grill Lighting Instruction

20
WARNING
Never lean over the grill cooking area while
lighting your gas grill. Keep your face and body
a safe distance (at least 18 inches) from the
cooking grid surface when lighting your grill by
match.
If Grill Still Fails To Light
1. Check gas supply and connections for leaks. Check
that all wire connections are secure.
2. Repeat basic lighting procedure. If your grill still fails
to operate, turn the gas off at source, turn the control
knobs to OFF, then check the following:
• Misalignment of burner tubes over orifices.
Correction: Reposition burner tubes over orifices.
•Obstruction in gas line.
Correction: Remove fuel line from grill. Do not smoke!
Open gas supply for 1 second to clear any obstruction
from fuel line. Close off gas supply at source and
reconnect fuel line to grill.
• Plugged orifice.
Correction: Remove burners from grill, carefully lift
each burner up and away from gas valve orifice.
Remove the orifice from gas valve and gently clear any
obstruction with a fine wire. Then reinstall all orifices,
burners, and cooking components.
3. If an obstruction is suspected in gas valves, please
call for repair service at 1-888-980-4933.
4. If the grill still does not light you may need to purge
air from the gas line or reset the regulator excess gas
flow device. Note: This procedure should be done every
time a new LP gas tank is connected to your grill.
To purge air from your gas line and/or reset the
regulator excess gas flow device:
• Turn the control knob to OFF position.
• Turn off the gas at the tank valve.
• Disconnect regulator from LP gas tank.
• Let unit stand for 5 minutes.
• Reconnect regulator to the LP gas tank.
• Turn the tank valve on slowly until ¼ to ½ open.
• Open the grill lid.
• Set control knobs to OFF. Push and turn any control
knob to HIGH.
• Turn control knobs to HIGH until all the burners are lit
• You may start to use the grill.
5. If all checks or corrections have been made and you
still have questions about operating your gas grill, call
the Customer Service Helpline 8 AM – 5 PM CDT,
Monday through Friday at 1-888-980-4933.
WARNING
Should a “FLASH-BACK” fire occur in/or around
the burner tubes, follow the instructions below.
Failure to comply with these instructions could
result in a fire or explosion that could cause
serious bodily injury, death, or property damage.
• Shut off gas supply to the gas grill.
• Turn the control knobs to OFF position.
• Put out any flame with a proper fire extinguisher.
• Open grill lid.
• Once the grill has cooled down, clean the burner
tubes and burners according to the cleaning
instructions found on page 23.
Manually Lighting Your Grill by Match
1. Take the manual lighting stick.
2. Insert a match into the lighting stick.
3. Follow steps 1 through 5 of the Basic Lighting
Procedure.
4. Light the match and extend the lighting stick to
cooking grid surface.
5. Turn the desired control knob to the HI/position
setting to release gas. The burner should light
immediately.