Weber Summit 425 NG User manual

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SUMMITTM 425 & 625
SUMMITTM 450 & 650
Step-By-Step Guide
Natural Gas Barbecues
Summit 425 NG
Summit 650 NG
Summit 625 NG
Summit 450 NG
92773 10/98
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A P P R O V E D
CANADIAN GAS ASSOCIATION
®
WARNING
1. Do not store spare LP Cylinder within
10 feet (3m) of this appliance.
2. Do not store or use gasoline or other
flammable liquids or vapors within 25
feet (8m) of this 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.
Leaking gas may cause a fire or explosion
which can cause serious bodily injury or
death or damage to property.
NOTICE TO INSTALLER: These instructions
must be left with the owner and the owner
should keep them for future use.
WARNING: Follow all leak check procedures
carefully in this manual prior to barbecue
operation. Do this even if barbecue was
dealer assembled.
WARNING: Do not try to light this appliance
without reading "Lighting" instructions
section of this manual.
THIS GAS APPLIANCE IS DESIGNED FOR
OUTDOOR USE ONLY.

INSTALL GAS SUPPLY (CART INSTALLATIONS ONLY)
Typical natural gas supply installation. Figure 1.
Figure 1 The quick disconnect is
installed above ground
Gas supply
Shut off
Locking
shut off
Quick Disconnect
Male fitting
To barbecue
Outside wall
Inside wall
 DANGER
Do not use an open flame to check for gas
leaks. Be sure there are no sparks or open
flames in the area while you check for gas
leaks. This will result in a fire or explosion
which can cause serious bodily injury or
death, and damage to property.
General Specifications for Piping
Note - Contact your local municipality for building
codes regulating outdoor gas barbecue installations.
In absence of Local Codes, you must conform to the
latest edition of ANSI Z223.1. WE RECOMMEND THAT
THIS INSTALLATION BE DONE BY A PROFESSIONAL.
Some of the following are general requirements taken
from ANSI Z223.1, for gas supply installations. Refer to
ANSI Z223.1 latest edition for complete specifications.
■This barbecue is designed to operate at 4.5 inches
of water column pressure (.1625 psi). Use only the
regulator with the cooking module.
■A manual shut-off valve must be installed outdoors,
immediately ahead of the quick disconnect.
■An additional manual shut-off valve indoors should
be installed in the branch fuel line in an accessible
location near the supply line.
■The quick disconnect connects to a 3/8 inch NPT
thread from the gas source. The quick disconnect
fitting is a hand-operated device that automatically
shuts OFF the flow of gas from the source when the
barbecue is disconnected.
■The quick disconnect fitting can be installed
horizontally, or pointing downward. Installing the
fitting with the open end pointing upward can result
in collecting water and debris.
■The dust covers (supplied plastic plugs) help keep the
open ends of the quick disconnect fitting clean while
disconnected.
■Pipe compound should be used which is resistant to
the action of natural gas when connections are made.
■The outdoor connector must be firmly attached to
rigid, permanent construction.
WARNING: Do not route the 12 foot hose under a
deck. The hose must be visible.
2
Gas line piping
■If the length of line required does not exceed 50 feet,
use a 5/8" O.D. tube. One size larger should be used
for lengths greater than 50 feet.
■Gas piping may be copper tubing, type K or L;
polyethylene plastic tube, with a minimum wall
thickness of .062 inch; or standard weight (schedule
40) steel or wrought iron pipe.
■Copper tubing must be tin-lined if the gas contains
more than 0.3 grams of hydrogen sulfide per 100
cubic feet of gas.
■Plastic tubing is suitable only for outdoor,
underground use.
■Gas piping in contact with earth, or any other material
which may corrode the piping, must be protected
against corrosion in an approved manner.
■Underground piping must have a minimum of 18" cover.
Test connections
All connections and joints must be thoroughly tested for
leaks in accordance with local codes and all listed
procedures in the latest edition of ANSI Z223.1.

3
CONTINUE TO REMOVE
PACKAGED CONTENTS
TOOLS NEEDED
SUPPLIES NEEDED
7/16 and 3/4 inch open end or an adjustable wrench
Your LP tank is shipped empty for safety. After setting the
LP fuel scale you will need to fill it. (See Step "Fill LP tank.")
You will need a soap and water solution to check for gas
leaks. (See Step "Check for gas leaks.")
Note - The hardware size of nuts, bolts and screws is
given. For example "1/4-20 x 2 inch bolt" means a bolt
1/4 inch in diameter with 20 threads to the inch, 2 inches
long. On a small screw for example, "6-32 x 1/2 inch
screw" means a number 6 screw, with 32 threads to the
inch, 1/2 inch long.
While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance.
Have your owner’s manual and serial number of the
barbecue available for reference.
Cooking grate
(2) (Summit 425 or 450)
(3) (Summit 625 or 650)
Flavorizer bar
(7) (Summit 425 or 450)
(11) (Summit 625 or 650)
Bottom tray
1/4-20 x 1/2 inch bolt (8)
Nylon washer (8)
Steam-N-Chips smoker
Note: If you use the Steam-N-
Chips Smoker, you will be
removing one of the Flavorizer
bars. You have a full set of
Flavorizer bars to use when not
using the Steam-N-Chips smoker.
Warm-up rack
“U”rails (2)
1/4-20 wing nuts (4)
Drip pan
Catch pan
Catch pan holder
Note: Remove all
packaging materials
from the barbecue,
the front, back sides,
inside the barbecue
cart, and the bottom
shipping platform.
Once the packaging
material is removed,
carefully roll the
barbecue off the
shipping platform
and lock the casters.

4
Stainless steel work surface (2)
Condiment holder (2)
Tool holder (4)
Hose
REMOVE PACKAGED
CONTENTS (CONTINUED)
Wire bottom rack
(For Summit 450 and 650)
Stainless steel bottom shelves
(For Summit 425 and 625)
Thermometer
INSTALL “U” RAILS
a)
b)
Figure 2
“U”rail
support
mounts
Tabs
Frame rails
“U”rail
supports
Note: lock the casters before starting assembly.
You will need: two “U”rails, eight 1/4-20 x 1/2 inch bolts,
eight nylon washers, and a 7/16 inch or adjustable wrench.
Insert the tabs of the “U”rail into the frame rails. Make sure
both tabs are inside the frame rails. Figure 2(a) and that the
“U”rail supports are outside of the “U”rail support mounts.
Figure 2(a).
Push the “U”rail down into place on top of the frame rail.
Add a nylon washer to a bolt and start the bolt through the
hole of the frame rail into the tab of the “U”rail. Only start the
two bolts. Figure 2(b).
Align the holes of the “U”rail support with the holes in the
“U”rail support mount. Add a washer to a bolt and start the
bolt through the “U”rail support and into the “U”rail support
mount. Figure 2(b). Only start the two bolts.
Once you have started the four bolts per side, use the
7/16 inch or adjustable wrench to tighten the four bolts on
each side of the barbecue.

5
CONNECT FLEXIBLE
HOSE TO REGULATOR
You will need: the 12 foot natural gas supply hose and a
3/4 inch or adjustable wrench.
Thread fitting end of hose onto regulator. Figure 3.
Tighten with wrench.
Figure 3
a)
b)
Regulator
Gas supply
hose
Regulator
Gas supply
hose
INSTALL FLAVORIZER
BARS
You will need: seven (Summit 425 or 450) or eleven
(Summit 625 or 650) flavorizer bars
Set the Flavorizer bars front to back over the burners in
the slots of the Flavorizer Bar/cooking grill support.
Figure 4 (a).
Figure 4
Flavorizer Bar/
cooking grill support
Flavorizer Bar
Slot
Summit 425 or
Summit 450
Summit 625 or
Summit 650

6
INSTALL STEAM-N-CHIPS
SMOKER
You will need: Steam-N-Chips smoker.
Remove the center Flavorizer bar (the one that is not over
a burner). Set the handles of the Steam-N-Chips smoker
on the Flavorizer bar holder. Figure 5 (a).
Note: For directions on how to use the Steam-N-Chips
smoker, see the Operating Guide.
Figure 5
ADD COOKING GRATES
Figure 6
You will need: two (Summit 425 or 450) or three
(Summit 625 or 650) cooking grates.
The cross-wire of the cooking grate goes down. Set the
cooking grates in place next to each other. Figure 6.
a)
Summit 425 or Summit 450
Summit 625 or Summit 650
INSTALL WARM-UP RACK
Figure 7
You will need: warm-up rack.
Install one end of the warm-up rack into the hole on the
right end of the lid and the other end into the slot in the
left end of the lid. Figure 7 (a).
a)

7
Figure 11
Put the foil drip pan into the catch pan.
Mounting
slots
View from front of the Cooking Box
Tabs of
bottom tray
INSTALL BOTTOM TRAY
You will need: Bottom tray, catch pan holder, catch pan,
and one drip pan.
Figure 8
Figure 9
Note: It may be easier to install the catch pan holder by
removing the catch pan from the holder.
Hook the ends of the catch pan holder into the hole in the
bottom tray. Figure 9.
Figure 10
Slide the bottom tray into the mounting slots under the
bottom of the cooking box with the finger grip of the catch
pan toward you. Figure 15.
CAUTION: Do not line the bottom tray with aluminum
foil. It can cause grease fires by trapping the grease
and not allowing grease to flow into the catch pan.

8
INSTALL BOTTOM
SHELVES
Figure 12
For the Summit 425 or 625, place the stainless steel
bottom shelves between the frame supports.
For the Summit 450 and 650, place the bottom rack under
the cart between the frame supports. Lift up one end of
the rack so it clears the crosspiece. Continue to lift until
the opposite end clears the opposite crosspiece. Set the
rack in place on both crosspieces.
Summit 425 or 625
Summit 450 or 650
INSTALL CONDIMENT
HOLDERS AND WORK
SURFACES
You will need: two condiment holders, two stainless steel
work surfaces, and four wing nuts.
Place the condiment holders on the left and right side of
the frame. Figure 13(a). Set the work surfaces over the
condiment holders on both sides of the barbecue. The
studs of the work surface go through the holes in the
top of the condiment holder and through the frame rail.
Thread on the wing nuts on the front and back and
tighten. Figure 13(b).
Figure 13
a)
b)
Studs
underneath
work surface

9
Remove burner control knobs, control panel
and front panel
Remove the burner control knobs. The control panel is
separate from the front panel. The control panel needs to
be removed before the front panel can be removed.
Figure 14.
Figure 14
Control
panel
Front
panel
CHECK FOR GAS LEAKS
 WARNING
The gas connections of your Weber Gas
Barbecue have been factory tested. We do
however recommend that you leak check
all gas connections before operating your
Weber Gas Barbecue.
Front edge of the
control panel
Put your fingers under the front edge of the control panel,
lift up, and pull evenly toward you. Figure 15 (a).
Figure 15
(a)
Front Panel
Control Panel
Pull the front panel up and out of the cooking box
assembly. Figure 16.
Figure 16
Front panel

10
WARNING: You should check for gas leaks every
time you disconnect and reconnect a gas fitting.
You will need: a soap and water solution and a rag or
brush to apply it.
Note: Since some leak test solutions, including soap and
water, may be slightly corrosive, all connections should be
rinsed with water after checking for leaks.
WARNING: Make sure all burner control knobs are
in the OFF position, including the side burner, if the
barbecue has a side burner.
Turn on gas supply.
Check for leaks by wetting the connections with the soap
and water solution and watching for bubbles. If bubbles
form or if a bubble grows there is a leak.
WARNING: Do not ignite burners when leak checking.
 DANGER
Do not use an open flame to check for gas
leaks. Be sure there are no sparks or open
flames in the area while you check for
leaks. This will result in a fire or explosion
which can cause serious bodily injury or
death and damage to property.
CHECK FOR GAS LEAKS
(CONTINUED)
Manifold
Manifold
Summit 425 or
Summit 450
Figure 17
a)
d)
c)
Manifold
a)
c)
b)
d)
Manifold
Figure 17
Summit 625 or
Summit 650
Check:
a) Left valves to manifold connection. Figure 17 (a).
b) Center valves to manifold connection. Figure 17 (b).
(For Summit 625 or 650 only.)
c) Right valves to manifold connection. Figure 17 (c).
d) Gas line to manifold connection. Figure 17 (d)
WARNING: If there is a leak at connection 17 (d),
turn OFF the gas and retighten the fitting with a
wrench and recheck for leaks with soap and water
solution.
If a leak persists after retightening the fitting, turn
OFF the gas. DO NOTOPERATE THE BARBECUE.
Contact your dealer.

11
Figure 18
b)
Summit 425 or
Summit 450
Summit 625 or
Summit 650
a) Hose to regulator connection. Figure 18 (b).
b) Hose to quick disconnect connection. Figure 18 (a).
WARNING: If there is a leak at connections
17 (a), 17 (b), 17 (c) 18 (a), or 18 (b) turn OFF the gas.
Do not operate the barbecue. Contact your dealer.
When leak checks are complete, turn gas supply OFF at
the source and rinse connections with water.
a)
CHECK FOR GAS LEAKS
(CONTINUED)
REINSTALL FRONT
PANEL
You will need: front panel.
With the Weber logo to the left, slide front panel down
into place. Figure 19.
Figure 19

12
INSTALL TOOL HOLDERS
Figure 20 a)
You will need: four tool holders.
Place the tool holder under the control panel and over the
front panel. Figure 20 (a). Set the tool holder on top of the
front panel and slide it to the left.
Control panel
Front panel
REINSTALL CONTROL
PANEL
You will need: control panel.
Pull igniter buttons up until they stay in the up position.
Place the control panel into the grooves on either side of
the front of the cooking box. Push the control panel into
place, using even pressure while pushing. Figure 20 (a).
Use your fingers to lift the front edge of the control panel
slightly and set it into the recess on both sides of the
cooking box. Figure 21.
Figure 21
(a)
Front Panel
Control Panel

13
REFER TO OPERATING
GUIDE BEFORE LIGHTING
BARBECUE
REINSTALL BURNER
CONTROL KNOBS
Figure 22
You will need: four (Summit 425 or 450) or six
(Summit 625 or 650) burner control knobs.
Push on the burner control knobs. Figure 22.

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EXPLODED VIEWS FOR SUMMIT 425 NG
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2

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REPLACEMENT PARTS LIST FOR SUMMIT 425 NG
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WARNING: Use only Weber factory
authorized parts. The use of any part that is
not factory authorized can be dangerous.
This will also void your warranty.
All items are single quantities unless otherwise specified.
Parts can be ordered directly from Weber-Stephen
Products Company by phone or mail.
Note - Do not return parts to Weber-Stephen Products Co.
without first contacting the Customer Service Center by
phone or mail. Returning the part may not be necessary.
While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance. Have
your owner’s manual and serial number of the barbecue
available for reference.
Weber-Stephen Products Company
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
(888) 33-SUMMIT
(888-337-8664)
1 Left pivoting endcap
2 Shroud assembly
3 Stainless steel handle
4 Steam-N-Chips smoker
5 Stainless steel work surface (2)
6 Condiment holder (2)
7 Left fixed endcap
8 Crossover tube (2)
9 Left burner (2)
10 Right burner (2)
11 Burner control knobs (4)
12 Igniter (2)
13 Igniter lock nut (2)
14 Igniter wire (white) (2)
15 Igniter wire (black) (2)
16 Gas catcher ignition chamber (2)
17 Manifold assembly
18 Manifold mounting clips (2)
19 Control panel
20 Igniter button (2)
21 Front panel
22 Tool holder (4)
23 Caster frame
24 Frame support (4)
25 1/4-20 x 3 1/2 inch bolt (4)
26 Match holder and chain
27 Bottom tray
28 Catch pan holder
29 Catch pan kit
30 Caster (2)
31 Bottom connector (2)
32 Stainless steel bottom shelf (2)
33 Thermometer mount assembly
34 Thermometer
35 Right pivoting endcap
36 Warm-up rack
37 Cooking grates (2)
38 Flavorizer bar / cooking grate holder (2)
39 Flavorizer bar (7)
40 Hair pin cotter (2)
41 Clevis pin (2)
42 Rear shroud
43 Burner tube rest
44 Right fixed endcap
45 Cookbox assembly
46 Corrugated gas line
47 Regulator assembly
48 Straight frame rail (2)
49 “U”rail (2)
50 1/4-20 wing nuts (4)
51 Back panel
52 Nylon washer (18)
53 1/4-20 x 1/2 inch bolt (14)
54 Wheel frame
55 Wheel hubcap (2)
56 Wheel (2)
57 Hose
58 1/4-20 keps nut (6)
59 Regulator mounting bracket

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EXPLODED VIEWS FOR SUMMIT 450 NG
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36

17
REPLACEMENT PARTS LIST FOR SUMMIT 450 NG
1 Left pivoting endcap
2 Shroud assembly
3 Stainless steel handle
4 Flavorizer bar / cooking grate holder (2)
5 Flavorizer bar (7)
6 Left fixed endcap
7 Crossover tube (2)
8 Left burner (2)
9 Right burner (2)
10 Burner control knob (4)
11 Igniter (2)
12 Igniter lock nut (2)
13 Igniter wire (black) (2)
14 Igniter wire (white) (2)
15 Gas catcher ignition chamber (2)
16 Manifold assembly
17 Manifold mounting clips (2)
18 Control panel
19 Igniter button (2)
20 Front panel
21 1/4-20 wing nut (4)
22 Left panel
23 Match holder and chain
24 Caster frame
25 Tool holder (4)
26 1/4-20 x 3 1/2 inch bolt (6)
27 Caster (2)
28 Bottom tray
29 Catch pan holder
30 Catch pan kit
31 Left front door
32 Door knob (2)
33 Thermometer mount assembly
34 Thermometer
35 Right pivoting endcap
36 Cooking grates (2)
37 Warm-up rack
38 Steam-N-Chips smoker
39 Hair pin cotter (2)
40 Clevis pin (2)
41 Rear shroud
42 Burner tube rest
43 Cookbox assembly
44 Right fixed endcap
45 Stainless steel work surface (2)
46 Condiment holder (2)
47 Corrugated gas line
48 Regulator assembly
49 Frame rail (2)
50 “U”rail (2)
51 Back panel
52 Nylon washer (20)
53 1/4-20 x 1/2 inch bolts (14)
54 Back panel
55 Wheel hubcap (2)
56 Wheel (2)
57 Wheel frame
58 Regulator mounting bracket
59 Plastic button (4)
60 Right panel
61 Frame support (4)
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WARNING: Use only Weber factory
authorized parts. The use of any part that is
not factory authorized can be dangerous.
This will also void your warranty.
All items are single quantities unless otherwise specified.
Parts can be ordered directly from Weber-Stephen
Products Company by phone or mail.
Note - Do not return parts to Weber-Stephen Products Co.
without first contacting the Customer Service Center by
phone or mail. Returning the part may not be necessary.
While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance. Have
your owner’s manual and serial number of the barbecue
available for reference.
Weber-Stephen Products Company
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
(888) 33-SUMMIT
(888-337-8664)
62 Bottom connector
63 Hose
64 Bottom connector with bushing (2)
65 Accessory rack
66 Right front door

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EXPLODED VIEWS FOR SUMMIT 625 NG
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52

19
REPLACEMENT PARTS LIST FOR SUMMIT 625 NG
1 Left pivoting endcap
2 Shroud assembly
3 Stainless steel handle
4 Cooking grates (3)
5 Flavorizer bar / cooking grate holder (2)
6 Flavorizer bar (11)
7 Stainless steel work surface (2)
8 Condiment holder (2)
9 Left fixed endcap
10 Crossover tube (3)
11 Left burner (3)
12 Right burner (3)
13 Burner control knob (6)
14 Igniter (3)
15 Igniter lock nut (3)
16 Igniter wire (black) (3)
17 Igniter wire (white) (3)
18 Gas catcher ignition chamber (3)
19 Manifold assembly
20 Manifold mounting clips (2)
21 Control panel
22 Igniter button (3)
23 Front panel
24 “U”rail (2)
25 Frame rail (2)
26 Caster frame
27 Match holder and chain
28 Tool holder (4)
29 1/4-20 x 3 1/2 inch bolt (4)
30 Bottom connector (2)
31 Caster (2)
32 Stainless steel bottom shelf (2)
33 Bottom tray
34 Catch pan holder
35 Catch pan kit
36 Thermometer mount assembly
37 Thermometer
38 Right pivoting endcap
39 Warm-up rack
40 Steam-N-Chips smoker
41 Rear shroud
42 Hair pin cotter (2)
43 Burner tube rest
44 Clevis pin (2)
45 Cookbox assembly
46 Right fixed endcap
47 Corrugated gas line
48 Regulator
49 Back panel
50 Nylon washer (18)
51 1/4-20 x 1/2 inch bolt (14)
52 1/4-20 wing nut (4)
53 Wheel frame
54 Wheel hubcap (2)
55 Wheel (2)
56 Frame support (4)
57 Hose
58 Regulator mounting bracket
W
E
B
E
R
W
E
B
E
R
WARNING: Use only Weber factory
authorized parts. The use of any part that is
not factory authorized can be dangerous.
This will also void your warranty.
All items are single quantities unless otherwise specified.
Parts can be ordered directly from Weber-Stephen
Products Company by phone or mail.
Note - Do not return parts to Weber-Stephen Products Co.
without first contacting the Customer Service Center by
phone or mail. Returning the part may not be necessary.
While we give much attention to our products,
unfortunately an occasional error may occur. If a part is
missing, do not go back to the store. Call the Weber
Customer Service Center toll free 1-888-33-SUMMIT
(1-888-337-8664) to receive immediate assistance. Have
your owner’s manual and serial number of the barbecue
available for reference.
Weber-Stephen Products Company
Customer Service Center
250 South Hicks Road
Palatine, IL 60067-6241
(888) 33-SUMMIT
(888-337-8664)

20
EXPLODED VIEWS FOR SUMMIT 650 NG
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