Weil-McLain LGB 6-20 Series Use and maintenance manual

Part Number 550-141-816/0798
Contents
I. New installation .......... 2
II. Existing installation .... 4
III. Water and steam trim
components .................. 4
IV. Gas piping ................... 5
V. Wiring ........................... 5
Sequence of operation ..... 8
Wiringprocedure .............. 8
VI. Leak test procedure ... 10
VII. Operating instructions ..... 11
VIII. Parts list ..................... 12
Indicates presence of hazards that can cause severe personal injury, death or
substantial property damage.
Indicates special instructions on installation, operation or maintenance that
are important but not related to personal injury or property damage.
This Control Supplement must only be used by a qualified installer/service
technician. Read these instructions completely before beginning the
installation. Failure to follow these instructions can cause severe personal
injury, death or substantial property damage.
These 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.
LGB
Gas–fired boiler
CSD-1 Control System
Control Supplement
LGB-6 to LGB-20 Series 2 – Propane gas

Part Number 550-141-816/07982
LGB-6 to LGB-20 Series 2 – Control Supplement
INew installation
1. Remove all burners from base box assembly. Remove 3.95 mm natural gas main burner
orifices in manifold. Install 2.40 mm propane gas main burner orifices. Use pipe dope
sparingly only on male ends. Use pipe dope compatible with propane gases. Do not
overtighten orifices.
2. Install pilot burners and flame sensor(s). See Figures 1 and 2 (page 3).Follow Table 1,
below for electronic pilot burner (UCS), standing pilot burner (Q327) and flame sensor
locations on manifold.
3. Install gas controls and ignition control panel as shown in Table 2, below and Figure 6
(page 12).
4. Attach pilot switch box to interior jacket panel. See Figure 6 (page 12). Connect
thermocouple from standing pilot to switch box. Cut 60” pilot tubing into 2 pieces to
make connections from pilot valve to pilot switch box and from pilot switch box to
standing pilot.
5. Attach:
a. 550-223-710 label at boiler operating instruction label. Place so that this label reads
first.
b. 550-223-796 label at rating label.
c. Wiring diagram on door (one on each base).
1R 1R 1R 1R 1R 1R 1R 1R 1R 1R 1R 1R
/*%  /*%    
/*%  /*%    
/*%  /*%    
/*%  /*%    
/*%  /*%    
/*%  /*%    
/*%  /*%    
/*%    
)URPOHIWEXUQHU
(OHFWURQLF
3LORW%XUQHU
6WDQGLQJ
3LORW%XUQHU
%RLOHU
0RGHO
1XPEHU
%RLOHU
0RGHO
1XPEHU
)ODPH6HQVRU (OHFWURQLF
3LORW%XUQHU )ODPH6HQVRU
6WDQGLQJ
3LORW%XUQHU
Table 1
Pilot burner and flame sensor
locations
Table 2
Gas control arrangement
/HIWEDVH 5LJKWEDVH /HIWEDVH 5LJKWEDVH
/*% $DQG%   /*% ,
/*% $DQG%   /*% - 
/*% &DQG'   /*% - 
/*% &DQG'   /*% - 
/*% ()DQG* ó  /*% .ó
/*% ()DQG* ó  /*% /óó
/*% ()DQG* ó  /*% /óó
/*% +
%RLOHU
0RGHO
1XPEHU
3URSDQH
&DUWRQ
,QOHW3LSH6L]H
%RLOHU
0RGHO
1XPEHU
3URSDQH
&DUWRQ
,QOHW3LSH6L]H

Part Number 550-141-816/0798 3
CSD-1ControlSystem–Propanegas
Figure 1
Pilot burner assembly, typical
Figure 2
Main flame sensor assembly
INew installation – continued

Part Number 550-141-816/07984
LGB-6 to LGB-20 Series 2 – Control Supplement
1. These instructions are for use with Propane Control Cartons as listed in Gas Control
Arrangement, Table 2 (page 2).
2. Remove jacket door(s) and access panel(s).
3. Disconnect wiring and tubing from existing pilot burner and main flame sensor.
4. Remove all burners. Remove 3.95 mm natural gas main burner orifices in manifold. Install
2.40 mm propane gas main burner orifices. Use pipe dope sparingly only on male ends.
Use pipe dope compatible with propane gases. Do not overtighten orifices.
5. Remove and discard existing electronic pilot burner from pilot burner tube. Replace with
electronic pilot burner in carton.
6. Attach Q327 standing pilot to burner tube in kit. Connect pilot tubing and thermocouple
to pilot.
7. Re-install burners. See Table 1 (page 2) for location of pilot burners and flame sensor(s).
8. Attach pilot switch box to jacket. See Figure 6 (page 12). Connect thermocouple to pilot
switch box. Cut 60” pilot tubing into 2 pieces to make connections from tee in pilot line to
pilot switch box and from pilot switch box to standing pilot.
9. Remove natural gas valve train.
10. Install propane gas valve train and fittings from carton (See page 5, section IV, paragraph
4 of this Supplement).
11. Re-install access panel(s).
12. See Figure 6, page 12 for propane piping.
13. Wire per wiring instructions and wiring diagrams, pages 5-9. Add splices as needed.
14. Attach:
a. 550-223-710 label at boiler operating instruction label. Place so that this label reads
first.
b. 550-223-796 label at rating label.
c. Wiring diagram over diagram on door (one on each base).
15. To place in operation, follow instructions on constant burner pilot light-up label and
boiler operating label.
16. Replace jacket doors.
II Existing installation Conversion from natural gas to propane gas
1. Install water or steam trim components as required by CSD-1 latest edition. See the boiler
manual for tapping locations.
a. Water boilers require:
• a manual reset high temperature limit control in addition to the standard
automatic reset limit control.
• a manual reset low water cutoff.
b. Steam boilers require:
• a manual reset high pressure limit control in addition to the standard automatic
reset limit control.
• a manual reset low water cutoff in addition to the standard automatic reset low
water cutoff.
III Water and steam trim components
This conversion is to be installed by a Weil-McLain distributor or other
qualified agency in accordance with the manufacturer’s instructions and all
codes and requirements of the authority having jurisdiction. Failure to
follow instructions could result in serious injury or property damage. The
qualified agency performing this work assumes responsibility for this
conversion.
For your safety, turn off electrical power supply before making any electrical
connections to avoid possible electrical shock hazard.

Part Number 550-141-816/0798 5
CSD-1Control System – Propanegas
IV Gas piping
1. Contact gas supplier to size pipes, tanks and regulator.
a. Inlet gas pressure to manual main shut-off gas valve —
minimum 11”W.C., maximum 13”W.C.
b. If pressure to gas valve exceeds 13”W.C.,install 100% lock-up gas pressure regulator
upstream of hand valve.
2. Remove gas supply knockout disc from jacket panel.
3. Follow good piping practices.
4. Pipe joint compound (pipe dope) must be resistant to corrosive action of liquefied
petroleum gases. Apply sparingly only to male threads of pipe joints.
5. Install drip leg at inlet of gas connection to boiler. Where local utility requires,extend drip
leg to floor.
6. Install ground joint union when required for servicing.
7. Support piping by hangers, not by boiler or its accessories.
8. Purge all air from supply piping.
9. Before operating boiler, check boiler and its gas connections for leaks.
a. Close manual main shut-off valve during any pressure testing at less than 13”W.C.
b. Disconnect boiler and gas valve from gas supply piping during any pressure test
greater than 13”W.C.
Do not check for gas leaks with an open flame – BUBBLE TEST. Failure to
use bubble test or test for leaks can cause severe personal injury, death or
substantial property damage.
1. All wiring must be installed in accordance with the requirements of the National Electrical
Code and any additional national, state or local code requirements having jurisdiction. All
wiring must be N.E.C. Class 1.
2. The boiler must be electrically grounded in accordance with the National Electrical Code,
ANSI/NFPA No. 70-latest edition. Use 105 °C. thermoplastic wire, or equivalent,if any of
the original wire must be replaced (except for pilot spark, sense and ground wires).
3. Supply wiring to the boiler must be No. 14 gauge or heavier. Install in conduit.
4. A separate electrical circuit with a fused disconnect switch (15 amp. recommended) should
be used for the boiler.
5. Refer to wiring diagrams, Figure 3 (pages 6 and 7) and Figure 5 (page 9). See section,
“Wiring procedure” on page 8.
6. Figure 5 on page 9 is the Field Wiring Diagram. See Figure 3, pages 6 and 7, for the
schematic and ladder wiring diagrams.
For your safety, turn off electrical power supply before making any electrical
connections to avoid possible electrical shock hazard.
VWiring

Part Number 550-141-816/07986
LGB-6 to LGB-20 Series 2 – Control Supplement
Part Number 550-141-816/0798 7
CSD-1 Control System – Propane gas
Figure 3
Wiring diagram
SENSOR
MAIN FLAME
FIRING RATE CONTROL
(WHEN USED)
STAGE COMBINATION
VALVE W/REGULATOR
MAIN GAS VALVE - TWO
MAIN GAS VALVE TERMINAL.
FIELD WIRED TO GAS VALVE OR FIRING
IGNITION CONTROL PANEL TERMINAL.
TRANSFORMER TERMINAL.
CONTROL MODULE TERMINAL.
FACTORY WIRED TO CONTROL -
24120
DISCONNECT
A. U.S.A. - NATIONAL ELECTRICAL CODE AND ANY OTHER NATIONAL, STATE, OR LOCAL
3. IF ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, TYPE
ELECTRICAL SHOCK HAZARD, CAN CAUSE SEVERE INJURY OR DEATH.
A. U.S.A. - N.E.C. CLASS 1.
APPLICATION INFORMATION.
105 DEGREES C OR ITS EQUIVALENT MUST BE USED. EXCEPTION, SEE NOTE 6.
4. REFER TO CONTROL COMPONENT INSTRUCTIONS PACKED WITH BOILER FOR
DISCONNECT POWER BEFORE INSTALLING AND/OR SERVICING.
1. ALL WIRING MUST BE INSTALLED IN ACCORDANCE WITH:
B. CANADA - C.S.A. C22.1 CANADIAN ELECTRICAL CODE PART 1 AND ANY OTHER
2. ALL WIRING EXTERNAL TO BOILER JACKET MUST BE:
B. CANADA - C.S.A. C22.1 C.E.C. PART 1.
NOTES:
NATIONAL, PROVINCIAL, OR LOCAL CODE REQUIREMENTS.
CODE REQUIREMENTS.
TRANSFORMER
WIRE NUTS (2)
24
V.A.C.
120
W
V.A.C.
BK
C
R
N
EQUIPMENT
GROUND
(NOTE 9)
V.A.C.
WIRE NUTS (3)
W
V.A.C. C
HIGH VOLTAGE FACTORY
10. ALL CONTACTS SHOWN WITHOUT POWER APPLIED - OFF SHELF CONDITION.
CONNECTED TO GAS VALVES AND FIRING RATE CONTROL TERMINALS (WHEN USED).
7. WIRES ARE FACTORY INSTALLED TO CONTROL PANEL, BUT MUST BE FIELD
6. REFER TO CONTROL SUPPLEMENT FOR GROUND LEADWIRE ATTACHMENT.
5. TERMINAL ON MAIN GAS VALVE IS A SINGLE TERMINAL (COMMON)
IF ORIGINAL GROUND LEADWIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED,
8. PILOT LEADWIRES ARE NOT FIELD REPLACEABLE. REPLACE PILOT ASSEMBLY IF NECESSARY.
9. DENOTES FIELD INSTALLED CHASSIS GROUND.
TYPE 125 C OR ITS EQUIVALENT MUST BE USED.
FOR LOW AND HIGH FIRE OPERATORS.
11. ALARM CONTACT RATINGS - 15 AMP @ 250 VAC.
MV/PV
IGNITION/SENSING CABLE
PANEL LAMP
RATE CONTROL.
NO. 2 BASE WIRING
(SIZES 13 THRU 20)
HIGH GAS
(WHEN USED)
SWITCH
PRESSURE
(NOTE 8)
PILOT
LOW VOLTAGE FIELD
HIGH VOLTAGE FIELD
LOW VOLTAGE FACTORY
WATER
LWCO
RESET
MANUAL
FROM TRANSFORMER
LIMIT CIRCUIT
TO LIMIT CIRCUIT
SERVICE SWITCH
(BY OTHERS)
H
FROM
FUSED
TRANSFORMER
BK R
FROM TRANSFORMER
TEMPERATURE
OPERATING/LIMIT
CONTROL
COMBINATION
RESET
MANUAL
HIGH LIMIT
STEAM
LIMIT CIRCUIT
LOW WATER
BOX
JUNCTION
OPERATING
CONTROL CUT-OFF
WIRE NUTS (4)
RESET HIGH
LWCO LIMIT
MANUAL RESET
HIGH LIMIT
MANUAL
(NOTE 8)
(SIZES 6 THRU 20)
NO. 1 BASE WIRING
SOLENOID
SWITCH
(WHEN USED)
PRESSURE
HIGH GAS
NOTE 11
PILOT MV
MV/PV PV
R
NOTE 6
WBL
NO.1 RED FLAME FAILURE LAMP
PILOT
SCHEMATIC WIRING DIAGRAM
PILOT PROVING MODULE
A United Dominion Company
Michigan City, IN 46360-2388
550-141-835/0798WM
PILOT PROVING MODULE
LGB
Propane Gas
NO. 2 BASE
PART NUMBER
Steam or Water
Intermittent Pilot
CSD-1 Control System
6 thru 20
Weil-McLain
500 Blaine St.
HIGH GAS
(WHEN USED)
SWITCH
PRESSURE
MAIN FLAME PROVING MODULE
NO. 2 BASE
R
OPERATOR (NOTE 5)
MAIN GAS VALVE HIGH FIRE
(NOTE 5)
MV/PV
SECONDARY GAS VALVE
PILOT SOLENOID VALVE
MAIN GAS VALVE LOW FIRE OPERATOR
(WHEN USED)
NOTE 11
ALARM
ALARM
24V
(WHEN USED)
SWITCH
PRESSURE
HIGH GAS
SENSE
NO. 1 BASE
SPARK
(GND)
24V
PV
1
N/A
SEE
NO. 1 BASE
PILOT FLAME SENSOR
MAIN FLAME PROVING MODULE
PILOT BURNER
(NOTE 8)
2
ALARM
ALARM
(GND)
SENSE
24V
24V
PV
MV/PV
MV
MAIN FLAME SENSOR
PV
MV
(STEAM ONLY)
LADDER WIRING DIAGRAM
LOW WATER
CUT-OFF
(BY OTHERS)
R
SERVICE SWITCH
R
OPERATING
CONTROL
H
FIRING RATE CONTROL
120 V.A.C.
MANUAL
LWCO
RESET RESET
MANUAL
HIGH LIMIT
24 V.A.C.
PRIMARY
HIGH
LIMIT PRIMARY
24 V.A.C.
MV/PV
GROUND
C
C
(NOTE 9)
EQUIPMENT
N
AA
21
VALVE
R
N/A
SPARK
SENSE
(GND)
24V
PV
1
24V
ALARM
ALARM
SENSE
PV
NOTE 11
A
1
A
2
SEE MV/PV
MV
PILOT SOLENOID VALVE
MV/PV
(NOTE 5)
MAIN GAS VALVE LOW FIRE OPERATOR
MAIN GAS VALVE HIGH FIRE
OPERATOR (NOTE 5)
MV/PV
PILOT FLAME SENSOR
PILOT BURNER
(NOTE 8)
MAIN FLAME SENSOR
2
(GND)
24V
ALARM
ALARM
24V
PV
FIRING RATE CONTROL
(WHEN USED)
MV
SOLENOID
VALVE
PILOT
NOTE 11
NOTE 6
R
VALVE W/REGULATOR
STAGE COMBINATION
MAIN GAS VALVE - TWO
MV
MV/PV PV
BL
W
FIRING RATE CONTROL
(WHEN USED)
MAIN FLAME
SENSOR
NO.2 RED FLAME FAILURE LAMP
MV/PV
MV
MV/PV
MV
MOMENTARY
SWITCH
R
TERMINAL
BLOCK
24 V
IGNITION CONTROL
SPARK
SENSE
SPARK
24V (GND)
PILOT PROVING
MODULE
MV/PV
MV
ALARM
ALARM
PV
PRE-WIRED PANEL
12A
1
A
2
IMPULSE
RELAY
IGNITION CONTROL
SENSE
24V (GND)
PROVING MODULE
MAIN FLAME
ALARM
24 V
ALARM
PV
MV/PV
MV
WIRE TIE
CLIP
MOMENTARY
SWITCH
R
TERMINAL
BLOCK
24 V
IGNITION CONTROL
SPARK
SENSE
SPARK
24V (GND)
PILOT PROVING
MODULE
MV/PV
MV
ALARM
ALARM
PV
PRE-WIRED PANEL
12A
1
A
2
IMPULSE
RELAY
IGNITION CONTROL
SENSE
24V (GND)
PROVING MODULE
MAIN FLAME
ALARM
24 V
ALARM
PV
MV/PV
MV
WIRE TIE
CLIP
THERMOCOUPLE LEAD
BOX
SWITCH
PILOT
THERMOCOUPLE
THERMOCOUPLE
SWITCH
PILOT
BOX
PILOT
STANDING
SWITCH
PILOT
BOX
PILOT
STANDING
THERMOCOUPLE
SWITCH
PILOT
BOX
THERMOCOUPLE
MV/PV
PV
SECONDARY GAS VALVE
MV/PV
PV
BLW
WBL
MV/PV
MV PV
SECONDARY
GAS VALVE
BK
BK
BLW
WBL
MV/PV
MV PV
SECONDARY
GAS VALVE
BK
BK

Part Number 550-141-816/07988
LGB-6 to LGB-20 Series 2 – Control Supplement
1. Operating control begins startup sequence.
a. Limit control contacts are closed.
2. Pilot proving module energized.
a. Pilot solenoid opens.
b. Pilot ignition spark begins.
c. Pilot ignites.
d. Pilot proves.
3. Main flame proving module energized from pilot proving module.
a. Secondary gas valve opens.
b. Main gas valve opens to low fire position.
c. Main burners ignite at low fire.
d. Main flame sensor proves low fire carryover.
e. Main gas valve opens to high fire position.
f. Main burners increase to high fire.
4. For dual base assembly - operating control energizes controls for each base assembly at the
same time. See steps 1 through 3 above.
5. Boiler shuts down when operating control satisfied.
Sequence of operation
On failure to sense pilot flame, the pilot-proving module will wait 5
minutes, then retry for ignition. Upon 2 consecutive pilot flame failures,
the control will lockout and illuminate the red lockout light.
If the boiler locks out, the alarm contacts on the terminal strip (terminals
A1 and A2) close. These contacts are rated to 15 amps, 250 V. To reset the
boiler, push the red lockout button.
VWiring – continued
1. Determine right or left electrical supply wiring.
2. Attach electrical junction box(es) to inside jacket end
panel. Screws and nuts are provided. For dual base
boilers, use offset nipples (provided) to connect
junction boxes together (as at right), then hang
junction boxes by screwing top box to boiler jacket.
See Figure 4.
3. Attach control transformer(s) to junction box(es).
4. Drill 1/8” hole in interior jacket panel midway between
ignition control panel and left jacket panel. Mount
wire support clip using sheet metal screw (furnished).
5. Complete wiring per diagrams, Figure 3 (pages 6
and 7) and Figure 5 (page 9).Terminate at secondary
gas valve in valve junction box with wirenuts and
strain relief provided.
6. Install pilot proving and main flame proving ground
connections as shown in Figures 1 and 2 and wiring
diagram. Route wires through wire support clip.
Wiring procedure
“Hot” side of line voltage to boiler
must be wired directly to limit
circuit, then fed to transformer
primary(ies).
Dual Base:“R” terminal of
secondaries are to supply power
to bases independently of each
other. Do not wire“R” terminals
together.
Figure 4
Junction box assembly
dual base boilers
On failure to sense main flame, the main flame-proving module will
lockout and illuminate the red lockout light.

Part Number 550-141-816/0798 9
CSD-1Control System – Propanegas
Figure 5
Field wiring diagram

Part Number 550-141-816/079810
LGB-6 to LGB-20 Series 2 – Control Supplement
1. Remove red (MV) and blue (PV) wires from main gas valve.
2. Close main test firing valve attached to the manifold.
3. Check that both leak test valves are closed and remove plugs.
4. Attach manometer to first leak test valve.
5. Open first leak test valve and check for pressure.
6. Close first leak test valve and remove manometer.
7. Attach manometer to second leak test valve.
8. Apply call for heat to boiler.
9. Check that electronic pilot proves.
10. Open second leak test valve and check for pressure.
11. Close second leak test valve and remove manometer.
12. Remove call for heat to boiler.
13. Reinstall plugs on leak test valves.
14. Connect wiring to main gas valve.
15. Open main test firing valve attached to the manifold.
When checking for pressure at the leak test valves, any small pressure
reading is normal. If the pressure continues to increase after opening the
leak test valve, the upstream valve is leaking and should be replaced.
VI Leak test procedure

Part Number 550-141-816/0798 11
CSD-1Control System – Propanegas
This document is intended only as a supplement to the LGB Gas-Fired Boiler Manual. Follow
all instructions in the Manual, including those regarding start-up (found in Section VIII,
“Placing boiler in operation”).
A. This boiler is equipped with a pilot which must be lighted by hand. When lighting the
pilot, follow these instructions exactly. The gas supply to this pilot is controlled by Pilot
switch box. This boiler is also equipped with an ignition device which automatically lights a
second pilot. The gas supply to this pilot is controlled by the Gas control. Do not try to
light this pilot by hand.
B. BEFORE OPERATING THE MANUAL PILOT, 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 IFYOU 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. 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.
Starting
boiler
1. STOP! Read the safety information above.
2. Set the Operating control to lowest setting.
3. Turn off all electrical power to the appliance.
4. Remove the Base access shield.
5. Close the Pilot shut-off valve connected to Manual main shut-off valve.
Close Manual main shut-off valve.
6. 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
above. If you don’t smell gas, go to the next step.
7. Open the Pilot shut-off valve.
8. Press and hold the reset lever on the Pilot switch box. Manually light the
pilot while holding the lever down. Air in the gas supply line will have to
purge through the line before sufficient gas will reach the pilot.
9. After purging all air, hold the Pilot switch box lever for about 1 minute to
heat the thermocouple.
10. Release the Pilot switch box lever. The pilot should remain lit.
11. Open the Manual main shut-off valve and follow the sequence below.
12. This appliance is also equipped with an ignition device which automatically
lights the second pilot. Do not try to light this pilot by hand.
13. Turn on all electric power to the appliance.
14. Set Operating control to desired setting.
15. If the appliance will not operate, turn off gas to the appliance by closing
the Manual main shut-off valve and Pilot shut-off valve. Call your service
technician or gas supplier.
16. Replace Base access shield and Front panel.
VII Operating instructions

Part Number 550-141-816/079812
LGB-6 to LGB-20 Series 2 – Control Supplement
Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
http://www.weil-mclain.com
VIII
Parts
list
Figure 6
Ref. No. Description Size Vendor/Part Number Weil-McLain Part Number
1 Main flame sensor Honeywell 392956 511-724-274
Main burner with pilot bracket Weil-McLain 512-200-055
Main flame sensor bracket Weil-McLain 423-300-420
1" Kinco-Balon 500 511-246-325
1 ¼" Kinco-Balon 600 511-246-330
1" Honeywell V8943A1003 511-044-191
1 ¼" Honeywell V8943A1111 511-044-192
1" Honeywell V8944L1033 511-044-346
1 ¼" Honeywell V8944L1041 511-044-218
6 Pilot burner, standing-repair kit propane Weil-McLain 383-300-410
7 Pilot burner, electronic-repair kit propane Weil-McLain 383-300-411
Main burner with pilot bracket Weil-McLain 512-200-055
Pilot burner bracket Weil-McLain 460-005-624
9 Pilot proving module United Technologies 1003-615 511-330-086
10 Main flame proving module United Technologies 1003-60 511-330-085
11 Impulse relay Potter-Brumfield S89R-11ABD1-24 510-350-226
12 Push-button switch Honeywell AML21CBA2AA
Eaton Controls ZZ1K11810K 511-624-580
13 Lens cover Honeywell AML51-C10R
Eaton Controls ZZ0PM0ZA 511-624-581
14 Light bulb
Honeywell V8046C1014
Johnson Controls H91ABG
16 Pilot shut-off valve Kinco-Balon P2R 511-246-340
17 Pilot switch box Johnson Controls L62GB-3C 511-330-229
18 Thermocouple 48" Honeywell Q309A 511-724-245
1" Watts FBV3-06 511-246-290
1 ¼" Watts FBV3-07 511-246-292
1 ½" Watts FBV3-08 511-246-294
20 Leak test valve Kinco-Balon P2R 511-246-340
21 Pilot tubing, alum. ¼ O.D. x .032-20" long
22 Pilot tubing, alum. ¼ O.D. x .032-60" long
2
8
TI-¾ #85 (Available at Local Supply House)
4 Secondary gas valve
Main gas valve5
3 Manual main shut-off valve
*Contact local Weil-McLain distributor/agent for current replacement part and order number.
15
19 Firing valve
Available at Local Supply House
511-044-039Pilot solenoid