Honeywell Series 4 User Manual

AHE  
SERIES 4  
Direct Vent Wall-Mounted Boilers  
AHE  
User’s  
Information  
Manual  
If the information in this manual is not followed exactly, a fire or  
explosion may result, causing property damage, personal injury or  
loss of life.  
Do not store or use gasoline or other flammable vapors and liquids in the  
vicinity of this or any other appliance.  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance.  
Do not touch any electrical switch; do not use any phone in your  
building.  
Immediately call your gas supplier from a neighbor’s phone. Follow  
the gas supplier’s instructions.  
If you cannot reach your gas supplier, call the fire department.  
Installation and service must be performed by a qualified installer, service  
technician or the gas supplier.  
Part number 550-141-893/0800  
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
Stop!! — Read before proceeding  
Failure to adhere to the following guidelines can result in severe personal injury,  
death or substantial property damage.  
When servicing boiler  
To avoid electric shock, disconnect electrical supply before performing maintenance.  
To avoid severe burns, allow boiler to cool before performing maintenance.  
Boiler operation  
Do not block flow of combustion or ventilation air to boiler.  
Should overheating occur or gas supply fail to shut off, do not turn off or disconnect electrical supply to  
circulator. Instead, shut off the gas supply at a location external to the appliance.  
Do not use this boiler if any part has been under water. Immediately call a qualified service technician to  
inspect the boiler and to replace any part of the control system and any gas control that has been under  
water.  
Boiler water  
Do not use petroleum-based cleaning or sealing compounds in boiler system. Water seal deterioration will  
occur, causing leakage between sections. This can result in substantial property damage.  
Do not use "homemade cures" or "boiler patent medicines". Serious damage to boiler, personnel and/or  
property may result.  
Continual fresh makeup water will reduce boiler life. Mineral buildup in sections reduces heat transfer,  
overheats cast iron, and causes section failure. Addition of oxygen and other gases can cause internal  
corrosion. Leaks in boiler or piping must be repaired at once to prevent makeup water.  
Do not add cold water to hot boiler. Thermal shock can cause sections to crack.  
Glycol — potential fire hazard  
All glycol is flammable when exposed to high temperatures. If glycol is allowed to accumulate in or around the  
boiler or any other potential ignition source, a fire can develop. In order to prevent potential severe personal  
injury, death or substantial property damage from fire and/or structural damage:  
Never store glycol of any kind near the boiler or any potential ignition source.  
Monitor and inspect the system and boiler regularly for leakage. Repair any leaks immediately to prevent  
possible accumulation of glycol.  
Never use automotive antifreeze or ethylene glycol in the system. Using these glycols can lead to hazardous  
leakage of glycol in the boiler system.  
Part number 550-141-893/0800  
3
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
Boiler maintenance  
Boiler service and maintenance  
The User’s Information Manual provides information to the boiler owner/user for routine operation and  
maintenance and emergency shutdown. Detailed information on boiler installation, operation, start-up, service  
and parts is included in the Boiler Manual. The Boiler Manual is intended only for use by a qualified installer/  
service technician.  
Maintenance schedule  
Maintain the boiler using the maintenance schedule below. Have the boiler started up and serviced at least annually  
by a qualified service technician to ensure boiler/system reliability.  
Service technician  
Owner maintenance  
(covered in Boiler Manual for use only by a  
(see following pages for instructions)  
qualified service technician)  
• Check boiler area  
• Check air openings  
Inspect:  
• Reported problems  
Daily  
• Boiler area  
• Check boiler pressure/  
temperature gauge  
• Air openings  
• Flue gas vent system (and air piping)  
• Main burner flames  
• Water piping  
• Check boiler piping  
• Check venting system  
• Check boiler relief valve  
• Check automatic air vents  
• Main burner flames  
Monthly  
• Boiler heating surfaces  
• Burners and base  
Service:  
• Test low water cutoff  
• Cleaning boiler heating surfaces  
• Blower motor  
Periodically  
• Clean vent termination and air  
intake screens  
• Oiled-bearing circulators  
Every 6 months • Operate relief valve  
Start-up:  
• Perform start-up per manual  
Check/test:  
• Gas piping  
• Cold fill and operating pressures  
• Air vents and air elimination  
• Blower motor assembly  
• Circulator with mixing valve  
• Limit controls and cutoffs  
• Expansion tank  
End of season  
• Shut down procedure  
• Boiler relief valve  
Review:  
• Review with owner  
Part number 550-141-893/0800  
4
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
User maintenance procedures  
Boiler must be serviced and  
maintained  
Component information  
For detailed illustrations showing boiler assembly parts  
and components, refer to the “Replacement parts”  
section in the AHE Series 4 Boiler Manual.  
The boiler should be inspected and started annually, at  
the beginning of the heating season, only by a qualified  
service technician. In addition, the maintenance and care  
of the boiler, as explained on the following pages, must  
be performed to assure maximum boiler efficiency and  
reliability. Failure to service and maintain the boiler and  
system could result in equipment failure, causing  
possible severe personal injury, death or substantial  
property damage.  
The following information provides detailed  
instructions for completing the maintenance items listed  
in the maintenance schedule on page 4. In addition to  
this maintenance,the boiler must be serviced and started  
up at the beginning of each heating season by a qualified  
service technician.  
Rollout thermal fuse element  
Cuts off gas flow should flame rollout occur. See  
Figure 1.  
Do not attempt to place boiler in  
operation if rollout thermal fuse  
element cuts off gas flow.  
Immediately call  
a
service  
technician. Failure to do so can cause  
severe personal injury, death or  
substantial property damage.  
Figure 1  
Rollout thermal fuse element  
Daily........................... Daily.....................  
Check boiler area  
Check boiler pressure/  
temperature gauge  
To prevent potential of severe personal injury, death or  
substantial property damage, do not store combustible 1. Make sure the pressure reading on the boiler  
pressure/temperature gauge does not exceed 24  
psig. Higher pressure may indicate a problem with  
the expansion tank or gauge.  
materials, gasoline or any other flammable vapors or  
liquids near the boiler. Remove immediately if found.  
2. Contact a qualified service technician if problem  
persists.  
Check air openings  
1. Verify that combustion and ventilation air openings  
to the boiler room and/or building are open and  
unobstructed.  
2. Verify that boiler air intake is clean and free of  
obstructions. Remove any debris on the air intake  
opening.  
Part number 550-141-893/0800  
5
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
User maintenance procedures continued  
Monthly ..................... Monthly ...............  
Check boiler piping  
Visually inspect for leaks around piping, circulators,  
relief valve and other fittings. Immediately call a  
qualified service technician to repair any leaks.  
Check boiler relief valve  
1. Inspect the boiler relief valve (see Figure 2) and the  
relief valve discharge pipe for signs of weeping or  
leakage.  
2. If the relief valve often weeps:  
Have leaks fixed at once by a qualified service technician.  
Continual fresh makeup water will reduce boiler life.  
Minerals can build up in sections, reducing heat transfer,  
overheating cast iron and causing equipment failure.  
Leaking water may also cause severe property damage.  
The expansion tank may not be working  
properly.  
Immediately contact your qualified service  
technician to inspect the boiler and system.  
Do not use petroleum-based cleaning or sealing  
compounds in boiler system. Severe damage to boiler  
and system components can occur, resulting in possible  
severe personal injury, death or substantial property  
damage.  
Check automatic air vents  
1. See Figure 3.  
2. Remove the cap from any automatic air vent in the  
system and check operation by depressing valveB”  
slightly with the tip of a screwdriver.  
Check venting system  
3. If the air vent valve appears to be working freely  
and not leaking, replace capA”, twisting all the way  
on.  
4. Loosen cap A” one turn to allow vent to operate.  
5. Have vent replaced if it does not operate correctly.  
Failure to inspect the vent system as noted below and  
have them repaired by a qualified service technician can  
result in vent system failure, causing severe personal  
injury or death.  
1. Visually inspect the gas vent system for any signs  
of blockage, leakage of joints or deterioration of  
the piping.  
Figure 2  
Figure 3  
Relief valve  
Automatic air vent  
A
B
71036  
Part number 550-141-893/0800  
6
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
User maintenance procedures continued  
Monthly ..................... Periodically..........  
Main burner flames  
Test low water cutoff  
Test the low water cutoff periodically during the heating  
season, following the low water cutoff manufacturer’s  
instructions.  
1. See Figure 4. Remove burner input plenum cover  
plate A”.  
2. Visually inspect burner flames:  
Proper main burner flame (see Figure 5):  
a. Yellow-orange streaks may appear (caused  
by dust).  
Clean vent termination and air  
intake screens  
Improper main burner flame:  
1. Remove all lint and debris from both the boiler air  
intake screen and the flue discharge screen.  
a. Overfired — Large flames.  
b. Underfired — Small flames.  
c. Lack of primary air — Yellow tipping on  
flames (sooting will occur).  
2. The boiler control module will sense blockage of  
the air intake or flue and lockout if the blockage is  
excessive. It will signal by flashing the appropriate  
indicator lights on the control board.  
3. If removing the debris does not allow the boiler to  
operate correctly afterwards, contact your qualified  
service technician to inspect the boiler and vent/  
air systems.  
Figure 4  
89301  
Figure 5  
Main burner flame, typical  
Transparent  
blue flame  
Inner flame  
26024  
Part number 550-141-893/0800  
7
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
User maintenance procedures continued  
Every 6 months........... End of season..............  
Propane boilers only — Your propane  
supplier mixes an odorant with the propane  
to make its presence detectable. In some  
instances, the odorant can fade and the gas  
Operate relief valve  
To avoid water damage or scalding due to valve  
operation, a metal discharge line must be  
connected to relief valve outlet and run to a  
safe place of disposal. This discharge line must  
be installed by a qualified heating installer or  
service technician in accordance with the  
instructions in the AHE Series 4 Boiler  
Manual. The discharge line must be  
terminated so as to eliminate possibility of  
severe burns should the valve discharge.  
may no longer have an odor.  
Propane gas can accumulate at floor  
level. Smell near the floor for the gas  
odorant or any unusual odor. If you  
suspect a leak, do not attempt to light  
the pilot.  
Use caution when attempting to light  
the propane pilot. This should be done  
by a qualified service technician,  
particularly if pilot outages are  
common.  
1. Before proceeding, verify that the relief valve outlet has been  
piped to a safe place of discharge, avoiding any possibility of  
scalding from hot water.  
2. Read the boiler pressure/temperature gauge to make sure the  
system is pressurized.  
3. Lift the relief valve top lever slightly, allowing water to relieve  
through the valve and discharge piping.  
4. If water flows freely, release the lever and allow the valve to  
seat.Watch the end of the relief valve discharge pipe to ensure  
that the valve does not weep after the line has had time to  
drain. If the valve weeps, lift the seat again to attempt to clean  
the valve seat. If the valve continues to weep afterwards,  
contact your qualified service technician to inspect the valve  
and system.  
Periodically check the odorant level of  
your gas.  
Inspect boiler and system at least yearly  
to make sure all gas piping is leak-tight.  
Consult your propane supplier  
regarding installation of a gas leak  
detector. There are some products on  
the market intended for this purpose.  
Your supplier may be able to suggest  
an appropriate device.  
5. If water does not flow from the valve when you lift the lever  
completely, the valve or discharge line may be blocked.  
Immediately shutdown the boiler, following the Operating  
Instructions on the inside of the jacket top panel or on pages  
10 and 11 of this manual. Call your qualified service  
technician to inspect the boiler and system  
Shut down procedure  
1. Follow “TO TURN OFF GAS TO THE APPLIANCE”  
instructions found in the Operating Instructions located on  
the inside of the jacket top panel. You will also find these  
instructions on pages 9 and 10 of this manual. Use the  
Operating Instructions for the gas valve model installed on  
the boiler.  
2. Do not drain system unless exposure to freezing temperatures  
will occur.  
3. Do not drain the system if it is filled with an antifreeze  
solution.  
4. Do not shut down boilers used for domestic water heating.  
They must operate year-round.  
Part number 550-141-893/0800  
8
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
Operating instructions  
Robertshaw 7200 gas valve  
FOR YOUR SAFETY READ BEFORE OPERATING  
If you do not follow these instructions exactly, a fire or explosion may result  
causing property damage, personal injury or loss of life.  
A. This appliance is equipped with an ignition  
device which automatically lights the pilot. Do  
not try to light the pilot by hand.  
C. Use only your hand to turn the gas control knob. Never use  
tools. If the knob will not turn by hand, don't try to repair it,  
call a qualified service technician. Force or attempted repair  
may result in a fire or explosion.  
B. Before OPERATING, 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. See below.  
D. 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.  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance.  
Immediately call your gas supplier from a neighbor's phone.  
Follow the gas supplier's instructions.  
Do not touch any electric switch; do not use  
any phone in your building.  
If you cannot reach your gas supplier, call the fire department.  
OPERATING INSTRUCTIONS  
7. 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.  
1. Stop! Read the safety information above on this label.  
2. Set the thermostat to lowest setting.  
3. Turn off all electrical power to the appliance.  
4. Remove control access panel.  
8. Turn selector arm clockwise  
to ON.  
5. This appliance is equipped with an ignition device  
which automatically lights the burner. Do not try to  
light the burner by hand.  
9. Turn on all electric power to the appliance.  
10. Set thermostat to desired setting.  
11. If the appliance will not operate, follow the instructions "To  
Turn Off Gas To Appliance" below and call your service  
technician or gas supplier.  
6. Depress and move selector arm counterclockwise  
to OFF. Note: Selector arm cannot be moved to OFF  
unless selector arm is depressed slightly. Do not force.  
12. Replace control access panel.  
Position  
indicator  
Selector  
arm  
(shown in  
OFF position)  
59332  
TO TURN OFF GAS TO THE APPLIANCE  
1. Set the thermostat to lowest setting.  
4. Depress and move selector arm counterclockwise  
to OFF.  
Do not force.  
2. Turn off all electric power to the appliance if service  
is to be performed.  
5. Replace control access panel.  
3. Remove control access panel.  
Part number 550-141-893/0800  
9
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
Operating instructions — Robertshaw 7200 gas valve  
Honeywell VR8205 and White-Rodgers 36E gas valves  
FOR YOUR SAFETY READ BEFORE OPERATING  
If you do not follow these instructions exactly, a fire or explosion may result  
causing property damage, personal injury or loss of life.  
A. This appliance is equipped with an ignition  
device which automatically lights the pilot. Do  
not try to light the pilot by hand.  
C. Use only your hand to turn the gas control knob. Never use  
tools. If the knob will not turn by hand, don't try to repair it,  
call a qualified service technician. Force or attempted repair  
may result in a fire or explosion.  
B. Before OPERATING, 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. See below.  
D. 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.  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance.  
Immediately call your gas supplier from a neighbor's phone.  
Follow the gas supplier's instructions.  
Do not touch any electric switch; do not use  
any phone in your building.  
If you cannot reach your gas supplier, call the fire department.  
OPERATING INSTRUCTIONS  
88731  
1. Stop! Read the safety information above on this label.  
2. Set the thermostat to lowest setting.  
White-Rodgers  
36E Gas valve  
3. Turn off all electrical power to the appliance.  
4. Remove control access panel.  
5. This appliance is equipped with an ignition device which automatically  
lights the burner. Do not try to light the burner by hand.  
Position indicator  
(shown in "ON" position)  
6. Turn gas control knob clockwise  
to OFF.  
Gas control knob  
7. 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.  
Honeywell  
VR8205  
Gas valve  
8. Turn gas control knob counterclockwise  
9. Turn on all electric power to the appliance.  
10. Set thermostat to desired setting.  
to ON.  
11. If the appliance will not operate, follow the instructions "ToTurn Off Gas  
Position indicator  
(shown in "ON" position)  
To Appliance" below and call your service technician or gas supplier.  
Gas control knob  
12. Replace control access panel.  
TO TURN OFF GAS TO THE APPLIANCE  
1. Set the thermostat to lowest setting.  
2. Turn off all electric power to the appliance if service is to be performed.  
3. Remove control access panel.  
4. Turn gas control knob clockwise  
to OFF. Do not force.  
5. Replace control access panel.  
Part number 550-141-893/0800  
10  
AHE Series 4 Direct Vent Wall-Mounted Boilers — User’s Information Manual  
Common problems and solutions  
Symptom  
Common Causes Possible Corrections  
Thermostat installed where drafts Locate thermostat on inner wall away from heat sources or cool  
Rapid cycling —  
boiler turns on and  
off frequently  
or heat affect reading  
drafts.  
Heat anticipator in thermostat  
adjusted incorrectly  
Adjust thermostat per manufacturer's instructions.  
Incorrect limit setting  
Set limit according to system needs. Maximum setting is 220˚F.  
Increase limit setting to decrease cycling.  
Insufficient water flow through  
boiler  
Check all valves to and from boiler. Return to proper setting.  
Confirm circulator size.  
Expansion tank sized too small  
Flooded expansion tank  
Call qualified service technician to check expansion tank  
operation and size.  
Frequent release of  
water through relief  
valve  
Call qualified service technician to check expansion tank  
operation.  
Inoperative limit control  
Leaks in boiler or piping  
Call qualified service technician to replace limit control.  
Have qualified service technician repair leaks at once to avoid  
constant use of makeup water. Makeup water can cause  
mineral deposits which, in turn, can cause boiler section failure.  
Do not use petroleum-based stop-leak compounds.  
Need to frequently  
add makeup water  
Oxygen corrosion due to leaks in Have qualified service technician repair at once. Keep pH of  
Black water  
condition  
boiler and piping  
water between 7.0 to 8.5.  
Mineral deposits in sections due  
to constant use of makeup water  
Call qualified service technician to de-lime boiler, if necessary.  
In some cases, deposits will be too heavy to remove with de-  
liming procedures.  
Popping or  
percolating noise  
heard in boiler  
Have qualified service technician repair leaks to eliminate need  
for constant makeup water.  
Incorrect pH of boiler water  
Call qualified service technician to check pH level and correct.  
pH should be maintained between 7.0 to 8.5.  
Insufficient water flow through  
boiler  
Check all valves to and from boiler. Return to proper setting.  
Confirm circulator size.  
Contaminated combustion air  
supply — See page 4 in this  
manual.  
Remove any contaminating products. See page 3 in this  
manual.  
Metal flakes found in  
vent outlet or vent —  
flueway corrosion  
Provide outside air for combustion. Kit available through Weil-  
McLain distributor. Have qualified service technician pipe-up kit.  
Condensation of combustion  
gases in boiler sections  
Have qualified service technician inspect system piping and  
controls to verify proper regulation of return water temperature.  
Air in system  
Bleed air from system through air vents in radiators or  
baseboard units.  
Some radiators or  
baseboard units do  
not heat or are noisy  
Low system pressure  
Fill to correct pressure.  
Check for leaks in boiler or piping. Have qualified service  
technician repair at once.  
High limit set too low  
Adjust high limit to higher setting.  
Part number 550-141-893/0800  
11  
Weil-McLain Limited Warranty for  
Residential & Commercial Cast Iron Boilers  
RESIDENTIAL WATER WARRANTY—Limited Lifetime  
RESIDENTIAL STEAM WARRANTY—Limited 10 Year  
COMMERCIAL WARRANTY—Limited 10-Year  
These warranties do not cover:  
1. Components that are part of the heating systems, but  
were not furnished by Weil-McLain as a part of the  
boiler.  
NOTE: The residential steam and water warranties do not  
cover residential boilers installed in buildings other than one  
or two family dwelling units, unless they are buildings with  
individual boilers for each dwelling unit.  
2. The workmanship of any installer of Weil-McLain’s  
boilers. In addition, this warranty does not assume any  
liability of any nature for unsatisfactory performance  
caused by improper installation.  
First Year-(All Residential & Commercial Cast Iron  
Boilers)  
3. Any costs for labor for removal and reinstallation of the  
alleged defective part, transportation to Weil-McLain, if  
necessary, and any other materials necessary to  
perform the exchange.  
Limited Warranty for Cast Iron Boilers:  
Weil-McLain warrants that its cast iron boilers are free from  
defects in material and workmanship for one year from the  
date of installation. If any parts are found to be defective in  
manufacture, Weil-McLain will provide replacement of such  
defective parts.  
4. Improper burner adjustments, control settings,care or  
maintenance. Information is included in the installation  
Instructions, Owner’s Information Manual and/or Start-  
up, Service and Maintenance Instructions, and other  
printed technical material furnished by Weil-McLain with  
the boiler.  
Second Through Tenth Year-(Residential Water/Steam)  
Second Through Tenth Year-(Commercial Water/Steam)  
Limited Warranty for cast iron sections:  
Weil-McLain warrants that the cast iron sections of its water  
and steam boilers are free from defects in material and  
workmanship from the date of installation for the second  
through the tenth year. If, during such time period, any section  
is found to be defective, Weil-McLain will provide replacement  
for the original cast iron section(s).  
5. Boilers operated with combustion air contaminated  
externally by chemical vapors or with improper fuel  
additives, or with water conditions which may have  
caused unusual deposits in the cast iron sections.  
These warranties extend only to the first retail purchaser of the boiler  
and only to a boiler that has not been moved from its original  
installation site.  
Eleventh Year and Beyond - (Residential Water Only)  
Limited Warranty for Cast Iron Sections:  
Weil-McLain warrants that the cast iron sections of its  
residential water boilers are free from defects in material and  
workmanship for the eleventh year and beyond from the date  
of installation.If, during such time period, any section(s) is  
found to be defective, Weil-McLain will provide replacement  
for the original cast iron section(s) upon the payment of a  
proportionate charge based on the time the boiler has been  
in service. The proportionate charge will be equal to the  
appropriate percentage of the list price of such section(s) at  
the time the warranty claim is made, and will be determined  
as follows:  
THE WARRANTIES DESCRIBED ABOVE ARE IN LIEU OF ALL  
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT  
NOT LIMITED TO ANY IMPLIED WARRANTIES OF FITNESS FOR  
A PARTICULAR PURPOSE AND MERCHANTABILITY. WEIL-  
McLAIN EXPRESSLY DISCLAIMS AND EXCLUDES ANY  
LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, INDIRECT OR  
PUNITIVE DAMAGES FOR BREACH OF ANY EXPRESS OR  
IMPLIED WARRANTY.  
For prompt product warranty claims, notify the installer who, in turn,  
will notify the Weil-McLain distributor from whom he purchased the  
boiler. If this action does not result in warranty resolution, contact  
Weil-McLain Consumer Relations Department, 500 Blaine Street,  
Michigan 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 inspection to determine cause of failure. Weil-McLain  
will furnish new part(s) to an authorized Weil-McLain distributor who,  
in turn will furnish the new part(s) to the heating contractor who  
installed the boiler. If you have any questions about the coverage of  
this warranty, contact Weil-McLain at the address above.  
11th year - 5%; 12th year - 10%; 13th year - 15%;  
14th year - 20%; 15th year - 25%; 16th year - 30%;  
17th year - 35%; 18th year - 40%; 19th year - 45%;  
20th year - 50%; 21st year - 55%; 22nd year - 60%;  
23rd year - 65%; 24th year - 70%; 25th year and  
beyond - 75%.  
All Residential & Commercial Cast Iron Boilers  
These warranties are subject to the condition that the boiler  
must have been installed by a heating contractor whose  
principal occupation is the sale and installation of plumbing,  
heating and/or air conditioning equipment.  
Weil-McLain  
500 Blaine Street  
Michigan City, IN 46360-2388  
A United Dominion Company  
Part number 550-141-893/0800  
12  

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