Weil McLain Boiler 550 141 396 0801 User Manual

P E R  
Se rie s 3  
Electric-Hydronic Boilers  
Installation Instructions  
Installer  
User  
This manual is for use only by  
Read all instructions before  
installing. Follow all instructions in  
proper order to prevent personal  
injury or death.  
your qualified heating installer/  
service technician.  
We recommend regular service  
by  
a
qualified service  
Consider piping and installation when determining  
technician, at least annually.  
boiler location.  
Any claims for damage or shortage in shipment  
must be filed immediately against the  
transportation company by the consignee.  
These Instructions must be used only by a qualified installer/service  
technician. Read these instructions completely before beginning. Failure to  
follow these instructions can cause severe personal injury, death or  
substantial property damage.  
When calling or writing about the boiler— Please have the boiler model  
number from the boiler rating label and the CP number from the boiler  
jacket.You may list the CP number in the space provided on the Installation  
and service certificate found on page 9.  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Pre -in s t a lla t io n  
General instructions  
Expansion tank sizing  
Undersized expansion tanks cause system water to be  
lost from relief valve and makeup water added through  
fill valve. Eventual section failure can result.  
The Weil-McLain Model PER electric-hydronic boilers  
are assembled units designed for use in forced hot water  
heating systems. The suggested design temperature rise  
through the boiler is 20°F. The PER boiler is a complete  
package including the circulator and expansion tank.  
Low flow rates through the boiler at elevated  
temperatures should be avoided. The structure to be  
heated should be insulated in the conventional manner  
used in your area for electrically heated buildings. Boiler  
must be installed in accordance with these instructions  
so as not to void our warranty.  
If a Fill-Trol system is used, refer to Table 1 for proper sizing. If Fill-Trol  
action is not desired,size the expansion tank according to the water volume  
of the system. If a standard closed expansion tank (without a diaphragm)  
is used, the air vent tapping on the boiler casting makes a convenient point  
of connection. The No. 109 Fill-Trol is furnished as standard equipment.  
Open the boiler crate and check the contents. In the  
event of shortage or damage, notify the transportation  
company immediately.  
Table 1  
Expansion tank sizing (Tank sizing based on 200 °F  
average system temperature.)  
Boiler  
Standard Fill-Trol tank  
Additional Ex-Trol tank  
model  
number  
(for series loop or one-pipe system (for cast-iron radiators or  
Locating the boiler  
with convector baseboard)  
No. 109  
cast-iron baseboard)  
No. 15  
The compact construction of the electric-hydronic  
boiler permits installation in an alcove, storeroom or  
other small area. The location chosen should have  
convenient electrical service.  
PER-15  
PER-20  
PER-25  
No. 109  
No. 15  
No. 109  
No. 15  
Allow sufficient clearance above and below the boiler  
cabinet to permit installation of supply and return  
piping.A minimum of 6 inches is required at the top of  
the boiler for installation and accessories. A clearance  
of 10 inches is required on the right hand side for  
removal of the elements.  
Note: Gravity systems converted to a forced hot water system usually require  
additional compression tank capacity.  
Mounting the boiler  
Hydrostatic pressure test  
Normally, the boiler will be installed against a frame or  
masonry wall. If the wall surface is rough or uneven, it  
may be necessary to mount plywood on the wall, then  
mount the boiler on the plywood. Refer to  
“Dimensions”on page 12 andRatingson page 13,and  
note the boiler weight. Be sure that the wall structure  
will support the boiler and its piping.  
The 9/16" top mounting holes and 5/16" lower mounting  
holes are on 16-inch centers to permit installation on  
studs in standard wall construction. The use of ¼" x  
2½" lag screws is recommended for mounting the boiler.  
The head diameters of the top two screws must not  
exceed 9/16".  
1. Locate the top mounting holes so that the boiler  
will be level. Install the screws so that the heads  
protrude ¾" from the wall.  
2. Raise the boiler to mounting position by placing a  
board across the bottom of the boiler or by grasping  
the lower left and right inside corners. Do not  
attempt to lift the boiler by grasping the bottom  
jacket cross tie.  
Pressure test boiler before attaching piping or electrical supply.  
1. Install air vent in tapping on top of boiler.  
2. Plug remaining tappings, including relief valve opening.  
3. Connect water supply. Fill boiler and purge all air. For more than 10  
minutes, pressure-test at 1½ times maximum working pressure.  
Do not leave boiler unattended. Cold water fill could  
expand and cause excess pressure, resulting in severe  
personal injury, death or substantial property damage.  
4. Check for maintained gauge pressure. Visually check for leaks if gauge  
pressure drops.  
5. Drain boiler and repair leaks if found.  
Leaks must be repaired at once. Failure to do so can  
damage boiler, resulting in substantial property damage.  
6. Retest boiler after repairing leaks.  
7. Remove testing plugs and air vent.  
Do not use petroleum-based cleaning or sealing  
compounds in boiler system. Severe damage to boiler  
will result, causing substantial property damage.  
3. Place the top brackets over the lag screws and then  
install screws through the lower mounting holes.  
The top screws can now be tightened.  
Part number 550-141-396/0801  
3
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Pre -in s t a lla t io n continued  
Piping the boiler  
After the boiler is secured to the wall, attach the supply  
and return piping. Refer to Table 2 for minimum pipe  
sizes.  
Install manual shut-off valves in the supply and return  
lines to facilitate servicing the boiler. Model PER boilers  
are provided with a built-in air elimination system using  
a float-type automatic air vent. Refer to the boiler line  
drawings and proceed as follows:  
1. Install the pressure-temperature gauge and ¾"-¼"  
bushing in the 1¼" x 1¼" x ¾" tee installed on the  
boiler supply connection. See “Dimensions” on  
page 12.  
Wiring the boiler  
Electric shock hazard. Can cause  
severe personal injury or death if  
power source, including service  
switch on boiler, is not disconnected  
before installing or servicing.  
The Model PER electric-hydronic boilers are pre-wired  
for use with 240-volt, single phase, 50/60-hertz power.  
Refer to Figure 1 on page 13 for the reduction in boiler  
capacity when the line voltage is less than 240 volts.  
An opening is provided in the left side of the jacket top  
panel for the field wiring. Refer to Dimensions, page  
12, and Ratings, page 13, for recommended wire sizes.  
2. The ¾" tapping, located to the left of the supply  
tapping, must be used for either an automatic  
venting device or piped directly to a standard closed  
expansion tank.  
3. Install the pressure relief valve in the ¾" tapping  
located on the top left hand side of the boiler (see  
“Dimensions” on page 12). Pipe the relief valve  
outlet to a floor drain or near the floor. Do not pipe  
the relief valve to any area where freezing  
temperatures might be encountered.  
All wiring must conform to the requirements of the  
National Electrical Code and any additional National,  
State or Local Code Requirements having jurisdiction.  
All safety circuit wiring should be N.E.C. Class 1. Do  
not use aluminum wire.  
When a PER boiler is used in a zoned system, the zone  
valves must be powered from an independent source,  
and have electrically isolated end switches or isolating  
relays wired in parallel to the boiler thermostat  
terminals.  
Pipe relief valve discharge line near  
floor close to floor drain to eliminate  
potential of severe burns. Do not  
pipe to any area where freezing  
could occur. Do not plug valve or  
place any obstruction in discharge  
line.  
Do not attempt to power zone valves  
from the transformer in the boiler  
control system.  
Control system  
The control system for the PER electric boiler has  
4. Connect the system supply piping to the tapping  
located at the right on the top of the boiler casting.  
5. Connect the system return piping to the circulator electronic and thermal time delays,which are employed  
flange. When solder fittings are used, be sure that to sequence elements on and to sequence elements off  
the gasket is not between the flanges when the solder in reverse order. The contactors used in the system  
connection is made.  
disconnect all current from the heating elements.  
6. A Fill-Trol system is supplied with PER boilers  
follow the instructions attached to the valve.  
The circulator control utilizes a single pole relay.  
Low and high limit functions are combined in a dual  
limit control. The control system is operated from a  
low voltage transformer.  
Table 2  
Pipe sizes and flow rates  
(Recommended minimum pipe size with 20°F  
temperature rise through boiler.)  
Boiler  
model  
number  
Maximum  
flow rate  
GPM  
Minimum  
supply  
pipe size  
Minimum  
return  
pipe size  
PER-15  
PER-20  
PER-25  
5.20  
6.90  
8.60  
¾"  
1"  
¾"  
1"  
1¼"  
1¼"  
Part number 550-141-396/0801  
4
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
S e q u e n c e o f o p e ra t io n  
Call for heat  
1. The thermostat contacts close, energizing the first contactor (2K), the circulator relay  
(1K), and the heater in the first thermal time delay (H1).  
2. Approximately 15 seconds later, the thermal delay contacts (1C) close energizing the  
electronic circuit inside the first electronic time delay (ED1).  
3. After approximately 2.5 minutes, the first electronic time delay energizes the second  
contactor (3K) and the second thermal time delay heater (H2).  
4. This sequence continues until all contactors are energized or until the call for heat ends.  
Call for heat satisfied  
5. The thermostat contacts open, de-energizing the first contactor (2K), the circulator relay  
(1K), and the heater in the first thermal time delay (H1).  
6. After a minimum of 10 seconds,the contacts in the first thermal delay (1C) open, instantly  
de-energizing the electronic time delay (ED1), the second contactor (3K), and the second  
thermal delay heater (H2).  
7. This sequence continues until all elements are de-energized.  
Limit control operation  
8. If the high limit setting is exceeded, the transformer secondary circuit is opened and all  
contactors are de-energized instantly. It is recommended that the“high”side of the control  
be set at 220°F. The “low” side should be set according to the design requirements of the  
structure to be heated but never less than 20°F below the “high” setting. The differential  
control should be set at a minimum of 20°F.  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Wirin g  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Tro u b le s h o o t in g  
This boiler contains fiberglass materials. Use care when handling these materials per instructions on page 11 of  
this manual. Failure to comply could result in severe personal injury.  
Symptom—No heat  
1. Check fuses. Power for the control circuit is supplied through the fuses  
for the heating element, and the circulator.  
2. If fuses are good,jumper the thermostat terminal. If boiler starts, check  
the thermostat and associated wiring.  
3. If thermostat and wiring are good, check the limit control.  
Symptom—Boiler does not shut  
down  
One or more contactors remain on after call for heat  
ends.  
1. Check contactors. Lower the temperature setting  
onhighside of the limit control to simulate a limit  
operation.  
a. Jumper theRand “Bterminals on the“lowside of the control.  
If the boiler starts, replace the limit control.  
b. If the boiler does not start in stepa, momentarily jumper the“R”  
and “Bterminals on the “high” side of the control. If the boiler  
starts, replace the limit control.  
a. If all contactors instantly de-energize, they are  
good.  
b. If one or more contactors fail to de-energize,  
replace those contactors.  
4. If the limit control is good, check the transformer.  
a. Measure the A.C.voltage on the transformer. If theA.C. voltage is  
24 volts ± 15%, the transformer is good.  
2. If contactors are good, check the thermal delays.  
Return the temperature setting on the “high” side  
of the limit control to its original position. Allow  
the boiler to sequence on with a normal call for  
heat. When all contactors are energized, lower the  
setting on the “low” side of the limit control to  
satisfy the call for heat. Observe the shutdown  
sequence and note the contactor at which it stops.  
Remove the wire connecting terminal 1 of the  
electronic delay to the thermal delay: The contactor  
will now de-energize,and the remaining contactors  
will follow in the normal off sequence. Replace the  
defective thermal delay.  
b. If the A.C. voltage is low, remove one secondary lead from its load  
connection.  
1) If the A.C. voltage returns to 24V, the transformer is good.  
2) If the A.C. voltage remains low, check the primary voltage. It  
should measure 240 or 480 volts A.C. accordingly ± 10%. If  
the primary voltage is correct, replace the transformer.  
5. If the transformer is good, follow the voltage path using the wiring  
diagram. Check each control for voltage in and out. Replace where  
voltage fails.  
Symptom—Low heat  
One or more contactors do not energize. Operation of any contactor, beyond  
the first is dependent upon the operation of three components.  
Symptom—Inoperative  
circulator  
1. Measure the voltage at the circulator terminals with  
the boiler energized. If the voltage is 120V ± 10%,  
the control is good. If no voltage is present, replace  
the circulator relay (1K).  
Thermal time delay.  
Electronic time delay; 2½ minutes.  
Contactor.  
1. Observe the sequence of operation and note at which contactor it is  
interrupted. If one contactor fails to energize because of an open coil,  
subsequent contactors will be affected (unless one has a shorted coil).  
To isolate the trouble, proceed as follows:  
a. Check contactor. Connect a jumper from terminal 3 of the  
electronic delay to the transformer wire going to terminal “Bon  
the “low” side of the limit control.  
b. If the contactor energizes check electronic and thermal delays.  
Remove the jumper from the transformer terminal and touch it  
to terminal 1 of the electronic delay. (The jumper now connects  
terminals 1 and 3 of the electronic delay). If the contactor  
energizes, replace the electronic time delay. If it fails to energize,  
replace the thermal time delay.  
Part number 550-141-396/0801  
7
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Op e ra t in g in s t ru c t io n s  
Water treatment  
Do not use petroleum-based cleaning or sealing compounds in boiler  
system. Severe damage to boiler will result, causing substantial property  
damage.  
Eliminate all leaks. Continual fresh makeup water will reduce boiler life.  
Minerals can build up in section, reducing heat transfer, overheating cast  
iron, and causing section failure.  
In hard water areas or low pH conditions (below 7.0), consult local water treatment company.  
Boiler water pH of 7.0 to 8.5 is recommended.  
Freeze protection (when used)  
See WARNING on page 2 for important information regarding glycol hazard.  
Do not use automotive, ethylene glycol or undiluted antifreeze. Severe  
personal injury, death or substantial property damage can result.  
Use antifreeze especially made for hydronic systems. Inhibited propylene glycol is  
recommended.  
50% solution provides protection to about -30°F.  
Local codes may require a back-flow preventer or actual disconnect from city water supply.  
Determine quantity according to system water content. Boiler water content is listed in the  
Ratings table on page 13. Remember to add in expansion tank water content.  
Filling the system with water  
Never apply power to the boiler unless the boiler is filled with water.  
1. Close manual air vents, drain cocks, and automatic air vent, if used.  
2. Fill the boiler and system to an initial pressure of about 12 pounds per square inch.  
3. Open automatic air vent one turn, if used.  
4. Starting on the lowest floor, open air vents one at a time until water squirts out. Close  
vent.  
5. Repeat with remaining vents.  
6. Refill to correct pressure.  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Ch e c ko u t p ro c e d u re  
After filling and purging, start the boiler as follows:  
Check limit control operation by lowering the  
control settings as described in the  
Troubleshooting” section on page 7.  
Turn the thermostat to its lowest setting so that there is no call for  
heat.  
Restore the limit control settings to their  
recommended values and set the thermostat to the  
desired room temperature.  
Set the limit control as recommended in the Installation Instructions.  
Turn on the main electric switch to the boiler.  
Fill in “Installation and service certificate” below.  
Set the thermostat above actual room temperature. Check for proper  
sequencing of elements. Heat the entire system to about 200°F so that  
dissolved air and gases in the system water will be emitted and vented.  
If the boiler operates incorrectly or fails to start,  
refer to “Troubleshooting” on page 7.  
In s t a lla t io n a n d s e rvic e c e rt ific a t e  
Boiler model __________________  
Series __________  
CP number ___________  
Date installed _______________  
Installation instructions have been followed.  
Checkout sequence has been performed.  
Above information is certified to be correct.  
Measured Btuh input ____________  
Information received and left with owner/maintenance person.  
Installer ________________________  
(company)  
________________________________  
(address)  
______________________________  
(phone)  
_____________________________________  
(installers signature)  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Ma in t e n a n c e  
This boiler contains fiberglass materials.Use care when handling these materials per instructions  
on page 11 of this manual. Failure to comply could result in severe personal injury.  
Draining and cleaning  
Checking expansion tank  
Undersized expansion tanks cause  
Do not drain the boiler during periods of shutdown  
unless the heating system is exposed to freezing  
temperatures. At the end of each heating season, open  
the boiler drain cock just long enough to remove any  
impurities or sediment that may have settled to the  
bottom of the boiler.  
system water to be lost from relief  
valve and makeup water added  
through fill valve. Eventual section  
failure can result.  
If the relief valve opens frequently, check the expansion  
tank. If the system has a pressurized tank with a rubber  
diaphragm separating the air cushion from the water  
(an Ex-Trol or equivalent tank),use a tire pressure gauge  
to check the air-charging valve on the end of the tank.  
If water flows, the diaphragm is ruptured or leaking.  
The tank must be replaced. If no water flows but the air  
charge has been lost, recharge the tank to 12 pounds  
per square inch. Periodic air loss from the expansion  
tank probably means a leaky charging valve.  
Keeping air vent clean  
Loosen the cap on the Float-Type Automatic Air Vent  
two turns while the system is being filled with water.  
Should dirt or scale lodge on the valve seat causing it to  
leak, remove the vent cap and push the valve core in by  
hand to permit water to flush the valve seat clean; release  
the valve core quickly and replace the vent cap. For  
normal operation and venting, unscrew the vent cap at  
least two turns.  
If the expansion tank is of the standard closed variety,  
(without a rubber diaphragm) the tank must be partly  
drained to re-establish an air cushion.  
Operating temperature and  
pressure  
The maximum recommended low and high limit  
control settings are 200°F and 220°F, respectively. The  
relief valve opens at 30 pounds per square inch. The  
Checking relief valve  
Check the relief valve once a year by manually opening actual operating pressure will range from 12 pounds  
the valve and allowing a small quantity of water to flow. per square inch when the system is cold to as much as  
Make sure that the valve reseats and does not leak. 15 pounds per square inch at maximum operating  
Replace any defective valve.  
temperature.  
Part number 550-141-396/0801  
10  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Ha n d lin g fib e rg la s s m a t e ria ls  
REMOVAL OF FIBERGLAS S WOOL — OR —  
INS TALLATION OF FIBERGLAS S WOOL, COMBUS TION CHAMBER LINING OR BAS E  
PANELS :  
This product contains fiberglass jacket insulation and ceramic fiber materials in combustion chamber lining or  
base panels in gas fired products. Airborne fibers from these materials have been listed by the State of California  
as a possible cause of cancer through inhalation.  
Avoid breathing dust and contact with skin and eyes.  
Use NIOSH certified dust respirator (N95). This type of respirator is based on the OSHA requirements  
for fiberglass wool at the time this document was written. Other types of respirators may be needed  
depending on the job site conditions. Current NIOSH recommendations can be found on the NIOSH  
phone numbers are also listed on this web site.  
Wear long-sleeved, loose fitting clothing, gloves, and eye protection.  
Operations such as sawing,blowing,tear out,and spraying may generate airborne fiber concentration requiring  
additional protection.  
Wash potentially contaminated clothes separately from other clothing. Rinse clothes washer thoroughly.  
NIOSH stated First Aid.  
Eye: Irrigate immediately  
Breathing: Fresh air.  
Part number 550-141-396/0801  
11  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Dim e n s io n s  
27/16"  
71/16"  
6½"  
Incoming power  
1¼" conduit  
2¼"  
195/8"  
313/16"  
1¼" Supply  
191/16"  
Combination pressure-  
temperature gauge  
9½"  
Automatic  
air vent  
½"  
Mounting brackets (2)  
¾" Relief  
valve  
½"  
10" Minimum  
wall clearance  
required for  
element  
removal.  
285/8"  
815/16"  
215/16"  
1¼" Return  
145/16"  
½" Fill  
2¼"  
5"  
16"  
39603  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Ra t in g s  
DOE  
Required wire sizes and weights  
Boiler  
model  
number  
DOE heating Boiler input Number of Element size  
Total  
amperes  
Volts phase  
wire  
Wire size  
90˚C field  
wiring  
Boiler  
water  
content  
Approximate  
shipping wt.  
capacity  
elements  
BTU/Hr  
51,000  
68,000  
85,000  
KW  
15  
KW  
5
(Note 2)  
240/1/3  
240/1/3  
240/1/3  
(Note 3)  
Gallons  
5.2  
lbs.  
215  
215  
215  
PER-15  
PER-20  
PER-25  
Notes:  
3
4
5
65  
86  
4
3
1
20  
5
5.2  
25  
5
107  
5.2  
1. Provide manual shutoff valves in the system piping at the supply outlet and the return inlet so the boiler can be drained without draining the entire  
system.  
2. For other than the standard voltages shown, consult Weil-McLain Application Engineering Department.  
3. Copper wire (AWG-MCM). Consult national or local electrical code manuals for runs in excess of 50 feet. Do no use aluminum wire.  
4. All ratings are based on 240-volt power input. See Figure 1 for percent of boiler capacity when the input voltage is below 240 volts. Gross output  
ratings. Piping loss not confined to the heated area should be added to the building loss to determine total heating equipment.  
Figure 1  
Boiler capacities at various voltages  
100%  
90%  
80%  
70%  
60%  
200  
210  
220  
230  
240  
Input Voltage  
39601  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Pa rt s  
This boiler contains fiberglass materials. Use care when handling these materials per instructions on page 11 of  
this manual. Failure to comply could result in severe personal injury.  
Item  
number  
Description  
Weil-McLain  
part number  
Item  
number  
Description  
Weil-McLain  
part number  
1
2
3
4
Control tray  
428-800-000  
318-806-200  
428-800-025  
428-800-020  
6
7
8
9
Jacket element cover plate  
Jacket bottom panel  
428-800-015  
428-600-004  
428-800-010  
590-243-200  
Boiler casting with insulation  
Jacket door  
Jacket bottom cross tie  
Element opening cover plate  
Jacket side and back panel  
Element opening gasket  
1.75 diameter hole  
1.50 diameter hole  
5
Jacket top panel  
428-800-005  
10  
590-317-523  
590-317-524  
Part number 550-141-396/0801  
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PER Series 3 Electric-Hydronic Boilers Installation Instructions  
Pa rt s continued  
The following items are available but are not shown in the Parts drawing  
Description  
Weil-McLain  
part number  
Jacket door latch  
562-850-089  
512-050-013  
590-850-020  
510-350-061  
510-350-219  
511-950-275  
510-350-211  
510-350-220  
562-650-102  
511-842-361  
512-050-002  
512-050-004  
591-850-172  
591-850-174  
511-546-924  
510-218-099  
512-150-147  
591-550-135  
510-148-567  
510-632-086  
511-405-117  
381-354-526  
511-210-423  
Terminal block  
Marker strip  
Limit control  
Circulator relay  
Thermostat  
Electronic delay, 2½ minutes  
Thermal delay, 30 seconds  
Retainer clip for thermal delay  
Transformer  
Line terminal and fuse block (upper)  
Line terminal and fuse block (lower)  
Fuses, 15A  
Fuses, 30A  
Relief valve (30 psig)  
Temperature pressure gauge  
Element contactor, 240 volt, single phase  
Heating elements, 5KW, 240V, single phase  
Air vent  
Fill-Trol, 90˚ fill  
Circulator pump  
Universal circulator hardware kit, 1¼"  
Drain valve  
Part number 550-141-396/0801  
15  
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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  
OTHERWARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT  
NOT LIMITEDTO ANY IMPLIEDWARRANTIES 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.  
Part number 550-141-396/0801  
16  
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