Weil-McLain QB-180 User manual

Partnumber644-500-065/0200
This manual must only be used by a qualified heating installer/service
technician. Failure to comply could result in severe personal injury, death or
substantial property damage.
Burner Manual
Oil Burners — Series 2
QB-180/300
Read all instructions before installing
Installer Leave all documentation with burner for future reference.
User Burner must be installed and annually serviced by a qualified installer/service
technician.
For Weil-McLain GO, 66 & 68 Boilers
Patent 5,961-316

Partnumber644-500-065/02002
QB-180/300 Oil Burners Series 2 —Burner Manual
Hazard definitions
The following defined terms are used throughout this manual to bring attention to the presence of hazards of
various risk levels or to important information concerning the life of the product.
IMPORTANT!  Read this page first
! ! !
Indicates presence of hazards that will
cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that can
cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that will
or can cause minor personal injury or
property damage.
Indicates special instructions on
installation, operation or maintenance
that are important but not related to
personal injury or property damage.
Read and follow instructions below to install or service the burner to reduce risk of severe personal
injury, death or substantial property damage.
• Appliance must be connected to a flue with
sufficient draft at all times to assure proper
operation.
• Do not use crankcase drainings or any oil
containing gasoline as it is more combus-
tible than No. 1 or No. 2 fuel oil.
• Do not attempt to start burner when excess
oil has accumulated in combustion cham-
ber, when boiler is full of vapor, or when
combustion chamber is very hot.
• Always keep manual fuel supply valve shut
off if burner is shut down for an extended
period of time.
• Do not start burner unless flue collector
hood, jacket cap, flue cap and burner
mounting door are secured in place.
• Never burn garbage or paper in the appli-
ance.
• Never leave combustible material around
appliance.

Partnumber644-500-065/0200 3
QB-180/300 Oil Burners Series 2 —Burner Manual
Hazard definitions .................................................................................... 2
Table of contents ...................................................................................... 3
Pre-installation considerations ................................................................ 4
Burner installation ................................................................................... 5
Fuel pumps and oil lines .......................................................................... 8
Wiring, operation and service ................................................................ 11
Troubleshooting ..................................................................................... 12
Parts list ................................................................................................. 14
Weil-McLain Limited Warranty .................................................. Back cover
Contents
1
2
3
4
5
6

Partnumber644-500-065/02004
QB-180/300 Oil Burners Series 2 —Burner Manual
Codes and standards
•Install burner in accordance with NFPA 31, Stan-
dard for Oil-Burning Equipment and all local codes
and regulations of authorities having jurisdiction.
In Canada, refer to CSA B139, Installation Code for
Oil-Burning Equipment. Regulations of these au-
thorities take precedence over instructions in this
manual.
•All wiring must comply with National Electrical
Code and local ordinances; in Canada, CSA C22.1
Canadian Electrical Code Part One and any local
codes. Refer to wiring diagram in Control Supple-
ment
supplied with burner.
•Underwriters Laboratories has certified this burner
to comply with ANSI Standard 296.6 and has listed
it for use with No. 1 or No. 2 fuel oil as specified in
ASTM D396.
Pre-installation considerations
1
Combustion and ventilation
air openings
See appliance manual and NFPA31 , Standard for Oil-
Burning Equipment
for details. For recommended
practice in Canada, refer to CSA Standard B139 .
Adequate combustion and ventilation
air must be provided to assure proper
combustion and reduce risk of flue gas
leakage and carbon monoxide
emissions, leading to severe personal
injury or death.
When the boiler is installed in a confined space (vol-
ume of space less than 50 cubic feet per 1,000 Btuh
input of all appliances in space), two permanent open-
ings must be provided:
•One near the top of the enclosure
•One near the bottom.
•Each opening must have a free area of not less than
one (1) square inch per 1,000 Btuh (140 square inch
per gph), of the total input rating of all the appli-
ances in the space.
When building is of unusually tight construction, has
a kitchen ventilating system, exhaust fans, clothes dryer
or vented fireplaces, it may be necessary to duct out-
side air directly to the burner in order to support clean
combustion. Weil-McLain QB-A1 Outside Air Kit, part
number 644-500-056, provides outside air directly to
the burner.
Chimney or vent
Inspect existing chimney or vent
before installing new burner. Failure to
do the following will cause severe
personal injury or death.
•Clean chimney, including removal
of blockage.
•Repair or replace damaged pipe or
liner.
•Repair mortar and joints.
Set the over-fire draft to the appliance manufacturer’s
recommended setting if available, or to -0.01" to -0.02"
water column. Install barometric control in breeching,
per control manufacturer’s instructions, when excess
draft needs to be relieved or to comply with applicable
codes and regulations. Use draft gauge to adjust proper
opening.
•If QB-180 or QB-300 Oil Burner is
received separately for field installation,
proceed to page 5, Burner Installation .
•If QB-180 or QB-300 Oil Burner is
received installed on the boiler, proceed
directly to page 8, Fuel Pumps and Oil
Lines
.

Partnumber644-500-065/0200 5
QB-180/300 Oil Burners Series 2 —Burner Manual
Burner installation
2
Mounting burner
Figure 1 Burner components
Fuel pump is factory set at 140 psig
(QB-300) or 150 psig (QB-180). Use of
a nozzle selected for 100 psig pressure
could result in severe personal injury,
death or substantial property damage.
Figure 2 Electrode settings
1. Remove burner from packing box.
2. Detach and save plastic bag with instructions and
bypass plug from fuel pump.
3. Install or verify correct nozzle as applicable:
a. Loosen, but do not remove, screw holding hous-
ing cover plate in place. Pull ignitor back and up
to swing open cover plate.
b. Disconnect oil line from solenoid valve.
c. Disconnect ignition wires from ignitor. Loosen,
but do not remove, captive screw securing ad-
justment cam in place. Turn adjustment cam so
3/16“ Oil Line Nozzle Adapter
Wrench
Adjustment
Cam
Captive
Screw
Electrode
Assembly
Top Leg of
Spinner
Centered
Vertically
Between
Electrodes
Nozzle
Spinner
Assembly
Spinner
Clamping
Screw
Nozzle
Adapter
GUN ASSEMBLY Includes:
“E” Clip
Ignition
Wires
Adjustment Cam
Electrode Assembly
Spinner Assembly
Nozzle
Nozzle Adapter
Oil Line
Ignition Wires
06502
that the larger end of the slot aligns with the cap-
tive screw. Pull gun assembly back and up to re-
move.
d. Loosen clamping screw on spinner assembly and
slide assembly off nozzle adapter.
e. See Table 1 on page 6 for proper nozzle size.Make
sure nozzle is tight in adapter (110 in-lbs nomi-
nal). Nozzle adapter wrench in burner housing
can hold nozzle adapter while you tighten nozzle.
f. Check electrode settings per Figure 2 .
g. Replace spinner assembly on nozzle adapter. Top
leg of spinner must align vertically between elec-
trodes. Make sure clamp is back against the
shoulder on adapter. Tighten clamping screw.
1/8“
5/16“
1/16“
from tip of electrode
to centerline of nozzle
between electrode tips from tip of nozzle to tip of electrode
06501

Partnumber644-500-065/02006
QB-180/300 Oil Burners Series 2 —Burner Manual
Burner installation continued
2
Table 1 Burner nozzle selection Use only the nozzles specified.
Boiler
model
QB-180 burner nozzle size (Pump pressure is 150 psig) Pump
pressure
(psig)
Cam
setting
Air band
setting
Preferred Alternates
Delavan Hago Danfoss Steinen
GO-2 0.65 70˚ A 0.65 70˚ B 0.65 70˚ AS 0.65 70˚ S 150 0.70/0.95 3.25
GO-3 0.85 70˚ A 0.85 70˚ B 0.85 70˚ AS 0.85 70˚ S 150 0.70/0.95 5.25
GO-4 1.00 70˚ B 1.00 70˚ B 1.00 70˚ AS 1.00 70˚ S 150 1.20 5.50
GO-5 1.25 60˚ B 1.25 45˚ B 1.25 60˚ AS 1.25 70˚ S 150 1.45 6.25
GO-6 1.50 45˚ B 1.50 45˚ B -1.50 45˚ S 150 1.75 6.75
268 * 0.65 70˚ A 0.65 70˚ H -0.65 70˚ H 150 0.70/0.95 3.00
368 0.85 70˚ A -0.85 70˚ AH - 150 0.70/0.95 5.00
468 1.10 70˚ A 1.10 70˚ ES 1.10 70˚ AS 1.10 80˚ S 150 1.20 5.25
568 1.25 60˚ B 1.25 70˚ B 1.25 60˚ AS -150 1.45 6.00
668 1.50 45˚ B 1.50 60˚ B or 1.50 45˚ ES 1.50 60˚ AS 1.50 60˚ S 150 1.75 6.50
266 * 0.65 70˚ A 0.65 70˚ H -0.65 70˚ H 150 0.70/0.95 3.00
366 0.85 70˚ A 0.85 70˚ B 0.85 70˚ AS -150 0.70/0.95 5.00
466 1.10 70˚ A 1.10 60˚ H 1.10 70˚ AH 1.10 70˚ H 150 1.20 5.25
566 1.25 60˚ B 1.25 70˚ B 1.25 60˚ AS -150 1.45 6.00
666 1.50 45˚ B 1.50 60˚ B or 1.50 45˚ ES 1.50 60˚ AS 1.50 60˚ S 150 1.75 6.50
*Install baffle clip per instructions packed with kit.
1. Nozzle: Tighten to 110 in/lbs.
2. Nozzle types: A, AH, H = hollow;
SS = semi-solid
B, ES, R, S, AS = solid
3. Suggested settings are for set-up with listed nozzle sizes only. Final
adjustments must be made with combustion test equipment and
should provide zero smoke with proper CO2.
4. For I=B=R boiler capacity, refer to individual boiler manual.
Boiler
model
QB-300 burner nozzle size (Pump pressure is 140 psig) Pump
pressure
(psig)
Cam
setting
Air band
setting
Preferred Alternates
Hago Delavan Steinen
GO-6 1.50 60˚ B or 1.50 45˚ B 1.50 45˚ B 1.50 60˚ S 140 1.75 2.25
GO-7 1.75 60˚ B or 1.75 45˚ B 1.75 60˚ B 1.75 70˚ S 140 2.00 3.75
GO-8 2.00 60˚ P or 2.00 45˚ P 2.00 70˚ B 2.00 70˚ S 140 2.30 5.75
GO-9 2.25 60˚ P or 2.25 45˚ P 2.25 60˚ B or 2.25 45˚ B 2.25 60˚ S 140 2.55 5.25
668 1.50 60˚ B or 1.50 45˚ B 1.50 45˚ B 1.50 60˚ S 140 1.75 2.25
768 1.75 60˚ B or 1.75 45˚ B 1.75 60˚ B 1.75 70˚ S 140 2.00 3.75
868 2.00 45˚ P 2.00 70˚ B 2.00 70˚ S 140 2.30 5.75
968 2.25 60˚ P 2.25 60˚ B 2.25 60˚ S 140 2.55 5.25
666 1.50 60˚ B or 1.50 45˚ B 1.50 45˚ B 1.50 60˚ S 140 1.75 2.25
766 1.75 60˚ B or 1.75 45˚ B 1.75 60˚ B 1.75 70˚ S 140 2.00 3.75
866 2.00 45˚ P 2.00 70˚ B 2.00 70˚ S 140 2.30 5.75
966 2.25 60˚ P 2.25 60˚ B 2.25 60˚ S 140 2.55 5.25
1. Suggested settings are for set-up with listed nozzle sizes only. Final adjust-
ments must be made with combustion test equipment and should provide zero
smoke with proper CO2.
2. For I=B=R boiler capacity, refer to individual boiler manual.
3. Nozzle types:
B, ES, P, S = solid
4. Nozzle: Tighten to 110 in/lbs.

Partnumber644-500-065/0200 7
QB-180/300 Oil Burners Series 2 —Burner Manual
Burner settings
4. Reinstall gun assembly:
a. Insert gun assembly into burner –do not force
it. The gun assembly must be lifted and guided
into air cone at end of air tube.
b. Turn adjustment cam so that the larger end of
the slot drops over the captive screw.
c. Position gun assembly by rotating adjustment
cam (
Figure 3 ) to correct setting. See Table 1 ,
page 6, for correct adjustment cam setting.
Tighten captive screw to lock adjustment cam
in place.
d. Connect oil line to solenoid valve.
e. Connect ignition wires to ignitor.
f. Swing cover plate closed and push forward to
engage locking pins.
g. Tighten screw holding housing cover plate in
place.
5. Mount burner to boiler with gasket supplied.
6. Verify attenuating air band setting. See
Table 1 ,
page 6, and Figure 4 .
Figure 4 Attenuating air band setting
Starting settings in Table 1 are for setup
only. Final adjustments must be made
with combustion test equipment and
should provide zero smoke with
proper CO2. See Final adjustments on
page 11.
Adjust the air band setting first. If
adjustments of the air band do not
result in clean combustion, then adjust
the cam setting. Increase the setting to
increase air. Decrease the setting to
reduce air. Cam adjustments should be
minor only.
Figure 3 Adjustment cam setting
Screw
indicates
setting
06503
QB-300
cam
QB-180
cam shown
GPH
2.00
2.25
2.50
1.75
1.75
0.95
0.70
GPH
1.45
1.20
QB 180
0
1
2
3
4
5
6
7
8
9
OPEN
CLOSE
TOTALLY
CLOSED
TOTALLY
OPEN
06504

Partnumber644-500-065/02008
QB-180/300 Oil Burners Series 2 —Burner Manual
Fuel pumps and oil lines
3
General
All installations must comply with national or local
codes and ordinances.
Oil line must be piped properly to
avoid risk of serious personal injury,
death or substantial property damage.
Follow these recommendations:
•When installing oil lines, use
continuous runs of heavy-wall
copper tubing.
•Be sure all connections are airtight.
Flared fittings are recommended.
Do not use compression fittings.
Do not use Teflon tape.
•Use an oil filter of adequate size for
all installations. Install filter inside
building between tank shutoff valve
and burner. For easy servicing,
locate shutoff valve and filter near
burner.
•Long or oversized inlet lines may
require the pump to operate dry
during initial bleeding period. In
such cases, assist priming by
injecting fuel oil into pump gearset.
•Never exceed 3 psi pressure to inlet
side of pump. Pressure over 3 psi
may damage shaft seal and allow it
to leak oil.
Solenoid valve
Solenoid valve supplied in nozzle line is a non-delay
valve and provides instant oil supply shutoff to nozzle.
Vacuum gauge
Vacuum gauge may be installed in either of the ¼" inlet
ports. Vacuum is total of all pressure drops in system
from tank to pump inlet.
Oil pump pressure
To check operating pressure, use gauge port or nozzle
Figure 5 Fuel pump —Typical
port. Do not use easy flow air bleed valve. It contains
higher pressure than operating pressure.
Setting pump pressure with gauge in easy flow air bleed
valve will result in wrong operating pressure.
Average cutoff pressure is 120 psig. Check cutoff
pressure by installing pressure gauge in nozzle port of
fuel pump. Run burner for short time. Shut off burner.
Gauge shows cutoff pressure.
Solenoid valve
Pressure gauge port 1/8" npt (read operating pressure)
Regulating pressure (behind inlet)
Easy flow air bleed valve
1/16" bypass plug —insert for
(use 5/32" allen wrench) two-pipe systems ONLY
Inlet ¼" npt (2 locations)
Return ¼" npt
Nozzle port 1/8" npt (read operating pressure)
06505

Partnumber644-500-065/0200 9
QB-180/300 Oil Burners Series 2 —Burner Manual
Figure 6 One-pipe oil system, typical
One-pipe oil systems (Figure 6)
Use one-pipe oil piping only when:
•the fuel is gravity fed —or —
•the fuel must be lifted no more than 8 feet. See
Fig-
ure 6
. (If the fuel lift is greater than 8 feet use two-
pipe fuel piping — Figure 7 on page 10.)
•fuel suction line vacuum is less than 6" Hg for ei-
ther a single-stage or two-stage burner fuel pump.
Burnerfuel pumpbypass plugmustnot beused with
one-pipe installations.
One-pipeinstallations must beabsolutelyair tight to
prevent leaks or loss of prime. Bleed line and fuel
pump completely. Bleed for 15 seconds after last air
bubble is seen from easy flow air bleed valve to be cer-
tain lines are air free. When bleeding oil pumps on
burners equipped with lockout-type controls, you may
have to cycle the burner several times to complete purg-
ing.
Air vent
Fill pipe
Shutoff
valve Oil
tank
Fuel pump
Filter
Maximum one-pipe
system lift = 8 feet
Inlet
06506

Partnumber644-500-065/020010
QB-180/300 Oil Burners Series 2 —Burner Manual
Fuel pumps and oil lines continued
Two-pipe oil systems (Figure 7)
Use two-pipe installations when fuel must be lifted
greater than 8 feet.
Burner fuel pump —A single-stage pump is limited
to a fuel lift height of no more than 10 feet. For greater
lifts install a two-stage pump on the burner.
Fuel suction line vacuum must not exceed 12" Hg
for a single-stage pump or 17" for a two-stage pump.
Bypassplug must be usedwith two-pipe installations.
Remove plug from plastic bag attached to fuel pump.
Remove ¼" plug from return port. Insert bypass plug.
Attach return and inlet lines.
Always terminate return line as shown in Figure 7 .
To determine two-pipe maximum line lengths, use
Table 2, page 10.
Figure 7 Two-pipe oil system, typical
3
Table 2 Two pipe oil system maximum oil line lengths (feet)
Lift
“L”
Single-stage oil pump Two-stage oil pump
3/8" O.D. 1/2" O.D. 3/8" O.D. 1/2" O.D.
084 100 93 100
273 100 85 100
463 100 77 100
652 100 69 100
842 100 60 100
10 31 100 52 100
12
Not recommended
— use two-stage pump
44 100
14 36 100
16 27 93
18 -- 65
Note: Line lengths include total of vertical and horizontal lengths.
Air vent
Fill
pipe
Oil
tank
(lift)
Filter
Inlet line Inlet line
Return line
Return line
Fuel pump
Return line terminates
inches above inlet line3 to 4
L
06507

Partnumber644-500-065/0200 11
QB-180/300 Oil Burners Series 2 —Burner Manual
Wiring, operation and service
4
Wiring
Wire the burner (and boiler) following instructions in
the burner ControlSupplement and the BoilerManual .
Service
Electrical shock hazard. Failure to shut
off electrical supply before servicing can
cause severe personal injury, death or
substantial property damage.
1. See
Boiler Service/Maintenance Guide for details
of annual service call, including cleaning boiler
flueways.
2. Oil blower motor (if required). Refer to motor
name plate/specifications label for any instructions.
3. Replace oil filter cartridge once a year to prevent
fuel oil contamination from plugging fuel pump
and nozzle.
4. Replace nozzle once a year before start up of heat-
ing season. Always use proper nozzle. See
Table 1
on page 6.
5. Check electrode settings once a year. See page 5.
6. Clean fan and blower housing regularly to keep free
of dirt and lint.
7. Check and adjust burner according to Start-up pro-
cedures in Control Supplement after each servic-
ing.
8. Contact your Weil-McLain distributor for all
burner parts that need replacement.
When servicing a NO HEAT call:
Check each item below, making sure to complete
each check before going to the next one.
❏Thermostat(s).
❏Main fuse and power supply.
❏Service switch on boiler.
❏Oil level in oil tank.
❏Oil valves.
❏Limit control.
❏Primary control.
❏Motor.
When all of the above checks are made, then refer to
Troubleshooting on pages 12 and 13.
Start-up
Read the sequence of operation and start-up proce-
dures in the burner Control Supplement .
Final Adjustments
You must use test instruments to
properly start, check and adjust burner.
Failure to do so could result in severe
personal injury, death or substantial
property damage.
1. Make sure combustion and ventilation air supply
is sufficient for normal appliance operation. Close
windows and doors in appliance area to simulate
normal job condition. Start boiler and allow for a
10-minute warm up.
2. Check for -.01" to -.02" W.C. draft in combustion
chamber. Adjust barometric damper as necessary.
3. Check for 0 smoke.
4. Check for CO2between 11% and 12 ½%.
•To increase CO2, close attenuating air band set-
ting.
•To decrease CO2, open attenuating air band set-
ting.
5. Check CO2, smoke and draft levels again.
6. Start and stop unit several times.
7. Check operation of limits, thermostats and timing
of combustion control.
8. Check for oil leaks.
9. Recheck all installations after one to two weeks of
operation.

Partnumber644-500-065/020012
QB-180/300 Oil Burners Series 2 —Burner Manual
Troubleshooting
5
If burner starts
and has flame,
but flame goes out
Primary control will shut off flame — Check for:
❏Dirty cad cell
❏View of fire obstructed, so that
cad cell cannot see flame
❏Defective cad cell
❏Defective primary control
❏Loss of oil prime
If burner starts, but
there is no flame
If burner
does not start
The relay in the primary control may not be pulling in — Check for:
❏Broken wires
❏Dirty thermostat contacts
❏Defective thermostat
❏Defective primary control
Primary control may have pre-purge — Check Control Supplement.
There is oil and spark, but no flame — Check for:
❏Loose, dirty or defective nozzle
❏Low pump pressure
❏Excess air/high draft
❏Incorrect electrode settings
❏Improper oil conditions
❏Improper spinner position. To
verify position, see page 5,
step 3g.
There is no ignition spark — Check for:
❏Defective/loose wiring connec-
tions at primary control or elec-
trode assembly
❏Incorrect electrode settings
❏Defective porcelain insulator on
electrode assembly
❏Defective ignitor
There may be insufficient oil flow — Check for:
❏Defective fuel pump
❏Pump strainer clogged
❏Defective solenoid valve
❏Loose coupling
❏Air leaks in suction line
❏Clogged or dirty nozzle
❏Clogged fuel filter
The motor is out on thermal overload — Check for:
❏Seized motor bearing
❏Fan locked against housing
❏Defective starter switch
❏Seized fuel pump
❏Start winding burned out
❏Defective wiring

Partnumber644-500-065/0200 13
QB-180/300 Oil Burners Series 2 —Burner Manual
If burner starts and
has a smoky flame
Check for: ❏Insufficient combustion air
❏Improper mixing of oil and air
❏Insufficient draft
❏Flame impingement on target
wall or crown sheet of boiler
❏Nozzle afterdrip due to faulty
solenoid or cutoff valve
If you hear
mechanical noise
from the burner
❏Loose fan
❏Air in oil line
❏Defective pump gears
❏Obstructed suction line
Check for: ❏Defective motor bearings
❏Pump and motor shaft mis-
aligned
❏Defective ignitor
❏Defective primary control
If you hear
combustion noise
Check for: ❏Insufficient draft in breeching
or overfire
❏Improper mixing of oil and air
❏Incorrect attenuating air band
setting
❏Incorrect adjustment cam set-
ting
❏Loose or dirty fan
If there is puffback
from burner
Check for: ❏Delayed ignition
❏Nozzle afterdrip due to poor
cutoff
❏Excessive draft
❏Incorrect attenuating air band
setting
If there is nozzle
drip
Check for: ❏Air in supply line from oil tank
to fuel pump
❏High vacuum
❏Hot nozzle or gun assembly due
to improper draft, misadjusted
burner or blocked flueways in
boiler

Partnumber644-500-065/020014
QB-180/300 Oil Burners Series 2 —Burner Manual
Parts list
6
Item
Number
Description Weil-McLain Part Number
QB-180 QB-300
1Motor with flange, 120 V.A.C., 1/7 HP, 3450 RPM 643-900-050
2Blower wheel 643-900-025
3Burner coupling 3 1/4" Length 643-900-105
4Air tube gasket 643-900-095
5Air tube 644-200-042 644-200-046
5a Air cone 644-200-050 644-200-051
6Flange gasket 643-900-100
7Burner plug —GO boiler series only 643-900-020
8Attenuating air band 643-900-030 643-900-305
9Fuel pump —Suntec, A2VA-7116-7, single-stage 643-900-060
Not shown Fuel pump —Suntec, B2VA-8216, two-stage 643-900-315
10 Solenoid valve, Combu 50010 E7-LUS/115 volt, no delay
opening 643-900-065
Not shown Solenoid coil replacement kit 643-900-008
11 Spinner assembly, 12 vane 643-900-110 643-900-310
12 Nozzle adapter kit 643-900-005
13 Electrode assembly kit 643-900-010
14 Adjustment cam kit 643-900-325 643-900-326
15 Screw, captive, 8-32 x 3/8" (12 per bag) 643-900-085
16 Wire assembly, transformer to electrode assembly 643-900-080
17 Oil line 3/16" diameter with fittings 643-900-115
18 Solid state ignitor kit, including adapter plate and hardware
Transformer PRI-120 V.A.C., secondary, 10,000 @ 23 ma. 643-900-318 643-900-055
19 Cover plate kit 643-900-015
20 Cad cell 643-900-070
21 Primary control —R8184G, 1336 with T-T terminals 643-900-075
Not shown Primary control —50200-02 with T-T and alarm contacts 643-900-319
Not shown Primary control —60200-02 with T-T and alarm contacts, with
prepurge and postpurge 643-900-317
22 "E" clip, oil line to cam 3/8" shaft diameter (12 per bag) 643-700-218
23 Mounting flange 644-700-201
Not shown Baffle clip kit —266 or 268 boiler sizes only 643-900-006 --
Not shown Burner head protector 643-900-007
Not shown Outside Air Kit QB-A1 643-900-056

Partnumber644-500-065/0200 15
QB-180/300 Oil Burners Series 2 —Burner Manual
06510
18
16
19
20
21
17
22
15
14
13
12
11
1
2
34
5
5a
(QB180)
5a (QB300)
7
8
9
10
23
6

Partnumber644-500-065/020016
Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
http://www.weil-mclain.com
Weil-McLain warrants that its residential oil-fired burn-
ers are free from defects in material and workmanship
for three years from the date of installation. If any parts
are found to be defective in manufacture, Weil-McLain
will provide replacement of such defective parts with
the following exceptions:
•nozzles
•cad cell
The provisions of this warranty for the above parts
are limited to 12 months from the date of installa-
tion or 18 months from the date of manufacture,
whichever date occurs first.
This warranty does not cover:
1. Workmanship of any installer of Weil-McLain’s resi-
dential oil-fired burners. In addition, this warranty
does not assume any liability of any nature for un-
satisfactory performance caused by improper in-
stallation.
2. Filters, strainers or any other routine maintenance
part as supplied through the contractor.
3. Any costs for labor for removal and reinstallation
of the alleged defective part, transportation to Weil-
McLain, if necessary, and any other materials nec-
essary to perform the exchange.
4. Unsatisfactory performance or damage caused by
improper burner adjustments, control settings, care
or maintenance.
5. Burners operated with combustion air contami-
nated externally by chemical vapors or with im-
proper fuel additives.
This warranty extends only to the first retail purchaser
of the burner and only to a burner that has not been
moved from its original installation site.
Weil-McLain Limited Warranty
for QB-180 and QB-300 Burners
RESIDENTIAL OIL-FIRED BURNERS
3-Year Limited Warranty
THE WARRANTY DESCRIBED ABOVE IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESS OR IM-
PLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTIES OF FITNESS FOR A PAR-
TICULAR PURPOSE AND MERCHANTABILITY.
WEIL-McLAIN EXPRESSLY DISCLAIMS AND EX-
CLUDES ANY LIABILITY FOR CONSEQUENTIAL,
INCIDENTAL, INDIRECT OR PUNITIVE DAMAGES
FOR BREACH OF ANY EXPRESS OR IMPLIED
WARRANTY.
For prompt warranty claims, notify the installer who,
in turn, will notify the Weil-McLain distributor from
whom he purchased the burner. If this action does not
result in warranty service, contact Weil-McLain Con-
sumer Relations Department, 500 Blaine Street, Michi-
gan City, Indiana 46360-2388, with details in support
of the warranty claim. Alleged defective part or parts
must be returned through trade channels in accordance
with the Weil-McLain procedure currently in force for
handling returned goods for the purpose of inspec-
tion to determine cause of failure. Weil-McLain will
furnish new part(s) to an authorized Weil-McLain dis-
tributor who, in turn, will furnish the new part(s) to
the heating contractor who installed the burner. If you
have any questions about the coverage of this warranty,
contact Weil-McLain at the address above.