Lochinvar Water Heater SSS031 User Manual

SSS-I&O Rev D  
Installation & Operation  
Manual  
Models: SSS031, SSS041,  
SSS051, SSS081, & SSS119  
This manual must only be used by a  
ƽ WARNING  
qualified heating installer / service  
technician. Read all instructions  
before installing. Perform steps in  
the order given. Failure to comply  
could result in severe personal  
injury, death, or substantial property  
damage.  
Save this manual for future reference.  
 
Installation & Operation Manual  
Please read before proceeding  
Installer – Read all instructions before  
ƽ WARNING  
Failure to adhere to the guidelines on this  
page can result in severe personal injury,  
death, or substantial property damage.  
ƽ WARNING  
installing. Perform steps in the order given.  
Have  
this  
indirect  
water  
heater  
serviced/inspected by a qualified service  
technician, at least annually.  
When servicing the indirect water heater –  
To avoid severe burns, allow the appliance to cool  
before performing maintenance.  
Failure to comply with the above could result  
in severe personal injury, death or substantial  
property damage.  
Indirect water heater operation –  
When calling or writing about the appliance  
– Please have the indirect water heater model  
and serial number from the indirect water  
heater rating plate.  
NOTICE  
• 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.  
Consider piping and installation when  
determining appliance location.  
• Do not use this appliance if any part has been under  
water. The possible damage to a flooded appliance can  
be extensive and present numerous safety hazards. Any  
appliance that has been under water must be replaced.  
Any claims for damage or shortage in  
shipment must be filed immediately against  
the transportation company by the  
consignee.  
Factory warranty (shipped with appliance)  
does not apply to appliances improperly  
installed or improperly operated.  
The following chart details the relationship of water  
temperature and time with regard to scald injury and may be  
used as a guide in determining the safest water temperature for  
your applications.  
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.  
ƽ WARNING  
APPROXIMATE TIME / TEMPERATURE  
RELATIONSHIPS IN SCALDS  
This appliance MUST NOT be installed in  
any location where gasoline or flammable  
vapors are likely to be present.  
120°F  
125°F  
130°F  
135°F  
140°F  
145°F  
150°F  
155°F  
More than 5 minutes  
1 1/2 to 2 minutes  
About 30 seconds  
About 10 seconds  
Less than 5 seconds  
Less than 3 seconds  
About 1 1/2 seconds  
About 1 second  
WHAT TO DO IF YOU 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.  
• Installation and service must be  
performed by a qualified installer, service  
agency, or the gas supplier.  
Hot Water Can Scald!  
Water heated to temperatures for clothes washing, dish washing, and other sanitizing needs can  
scald and cause permanent injury.  
Children, elderly, and infirm or physically handicapped persons are more likely to be  
permanently injured by hot water. Never leave them unattended in a bathtub or shower.  
Never allow small children to use a hot water tap or draw their own bath.  
If anyone using hot water in the building fits the above description, or if state laws or local  
codes require certain water temperatures at hot water taps, you must take special  
precautions:  
Use lowest possible temperature setting.  
Install some type of tempering device, such as an automatic mixing  
valve, at hot water tap or water heater. Automatic mixing valve must be selected and  
installed according to valve manufacturer’s recommendations and instructions.  
Water passing out of drain valves may be extremely hot. To avoid injury:  
Make sure all connections are tight.  
Direct water flow away from any person.  
Protection Must Be Taken Against Excessive Temperature and Pressure!  
--Installation of a Temperature & Pressure (T&P) relief valve is required.  
 
3
Installation & Operation Manual  
1 General Information  
The Lochinvar SSS series indirect water heater (FIG. 1-1) is  
designed to generate domestic hot water in conjunction with  
a hot water boiler using forced boiler water circulation. This  
indirect water heater consists of a 444 Stainless Steel tank in  
which a smooth 304 stainless steel coil is located. Boiler water  
is pumped through the coil and heats the water in the tank.  
This tank is not intended for use in pool heating applications  
or for heating any fluid other than water. It is also not  
intended for use in gravity hot water heating systems.  
Table 1A  
Component Materials  
Component  
Material  
Tank  
Coil  
444 Stainless Steel  
304 Stainless Steel  
EPS Foam  
Insulation (Top/Bottom)  
Insulation Sides  
Jacket  
Operating Restrictions:  
Maximum Allowable Tank Working Pressure - 150 psi  
EPS Foam  
Design Hydrostatically Tested to 300 psi  
Polypropylene  
Silicone “O” Ring  
Maximum Domestic Hot Water Temperature - 190°F  
Maximum Boiler Water Temperature - 210°F  
Hand Hole Cover Gasket  
Figure 1-1 Lochinvar SSS Series Indirect Water Heater  
4
 
Installation & Operation Manual  
2 Pre-installation  
1. The installation must conform with the instructions  
in this manual and all applicable local, state,  
provincial, and national codes, laws, regulations, and  
ordinances. Installations in Canada must conform to  
B149.1 or B149.2 Installation Codes.  
Locating the Tank  
1. Figure 1-1 on page 4 shows the weights of all the tanks filled  
with water. Make sure that the location chosen for the tank  
is capable of supporting it.  
2. Be certain the domestic water supply to the tank has  
physical and chemical characteristics that fall within  
the limits shown in Table 2A. Where questions exist  
as to the composition of the water on the job, a  
qualified water treatment expert should be consulted.  
Failure to properly support the tank could  
ƽ WARNING  
result in property damage or personal injury.  
2. Locate the system in a location where a leak in the tank, the  
adjacent piping, or an open T & P valve will not damage the  
surrounding structure. If the area around the desired tank  
location is highly susceptible to water damage, install the  
tank in a pan with a drain.  
Water with characteristics outside the  
CAUTION  
limits shown in Table 2A may severely  
shorten the life of the tank due to  
corrosion. Damage to tanks in such  
cases is not covered under warranty.  
3. The tank may be located some distance from the boiler  
provided the zone system is designed to provide the flow  
called for in Table 3A - Pressure Drop Values, through  
the coil. Also, the further the tank is from the boiler, the  
longer the response of the boiler will be to a call from the  
tank zone. Insulate piping between the boiler and the tank.  
3. Read and understand all installation requirements in  
this manual.  
Table 2A  
Water Chemistry Requirements  
Recommended Clearances  
Water used in the tank must have characteristics falling  
within the following limits:  
The installation location must provide adequate clearances for  
servicing and proper operation of the water heater. A 12 inch  
vertical clearance is recommended from the top of the water  
heater. A zero clearance is allowed for the sides of the water  
heater. However, boiler and servicing clearances must be figured  
when locating the water heater.  
Characteristic  
Ph  
Chloride (PPM)  
Min.  
6.0  
Max.  
8.0  
0.0  
80.0  
5
 
Installation & Operation Manual  
3 Piping  
DHW Prioritization  
Boiler Side Piping  
This piping system is designed to provide direct hot water  
priority over the other zones in the heating system. When there  
is a Domestic Hot Water (DHW) call for heat, the Knight control  
will shut off the boiler circulator and activate the domestic hot  
water circulator. Once the DHW demand is satisfied, the boiler  
circulator will be readjusted as demand requires. The circulator  
must be large enough to move the boiler water through the coils.  
The recommended piping for a DHW priority system is depicted  
in FIG. 3-3 on page 8.  
Figures 3-1 thru 3-3 show typical boiler side piping for  
several common situations. Regardless of which system is  
used it is imperative that the flow rates called for in Table 3A  
on page 6 are developed through the coil. This requires  
properly sized piping and a properly sized pump.  
The system shown in FIG’s 3-1 thru 3-3 are described below:  
Zone with Circulator to Aquastat  
This system is like the circulator zone system on a straight  
heat job except that one of the zones goes to the tank instead  
of radiation. As on any circulator zone system check valves  
should be installed in each zone to prevent unwanted  
circulation through zones which are not calling for heat.  
Figure 3-1 on page 7 illustrates typical circulator zone  
piping.  
Multiple Tank Connections (Boiler Side)  
Multiple tank installations must be done in the “reverse-return”  
manner. The reason for this is to create the same pressure drop  
(and therefore, the same flow) through the coil of each tank.  
The boiler manifold piping must be sized so that each coil has  
the flow rate called for in Table 3A below. For example, if two  
tanks are to be manifolded together, the circulator and zone  
piping common to both tanks must be capable of moving  
16 GPM (2 x 8 GPM), see FIG. 3-4 on page 9.  
Zone with Valve to Aquastat  
As with the circulator zone system, this system is just like a  
standard heating zone system except that one of the zones is  
connected to the tank coil as shown in FIG. 3-2. The  
circulator must be large enough to move boiler water  
through the coil regardless of the flow rate required through  
the heating zones.  
Because the pressure drop through tank coils varies from size to  
size, it is hard to predict the flow rate that will be developed  
through each coil when two tanks of different sizes are placed in  
the same manifold. For this reason it is best not to mix tanks of  
two different sizes in the same zone if their recovery is critical.  
Table 3A  
Pressure Drop Values  
Pressure Drop  
(FT/HD)  
Coil  
Tube  
Model  
Length (FT) Diameter (IN)  
8 GPM  
12 GPM  
16 GPM  
20 GPM  
SSS031  
SSS041  
SSS051  
SSS081  
SSS119  
22.0  
27.6  
32.8  
49.2  
65.6  
1 1/4  
1 1/4  
1 1/4  
1 1/4  
1 1/4  
1.4  
1.7  
3.0  
4.0  
5.1  
6.4  
7.8  
9.8  
2.0  
4.4  
7.6  
11.7  
16.7  
23.5  
N/A  
N/A  
6.3  
10.9  
15.3  
N/A  
6
 
Installation & Operation Manual  
3 Piping  
(continued)  
Figure 3-1 Piping Diagram Zoned with Circulators  
ZONE #1  
PRESSURE  
PRESSURE  
GAUGE  
REDUCING VALVE  
ZONE #2  
ZONE #3  
ZONE #4  
BACKFLOW  
PREVENTER  
ZONE CIRCULATORS  
(TYPICAL)  
MAKE UP WATER  
SYSTEM SUPPLY  
SENSOR  
(WHEN USED)  
AIR SEPARATOR  
EXPANSION  
TANK  
NOT TO EXCEED 4 PIPE DIA.  
OR A MAXIMUM OF 12” APART  
HOT  
WATER  
OUT  
DRAIN POINT  
(TYPICAL)  
BOILER  
CIRCULATOR  
ANTI-SCALD  
MIXING VALVE  
BALL VALVE  
(TYPICAL)  
FLOW CHECK  
VALVE  
COLD  
WATER  
IN  
RELIEF VALVE  
RECIRCULATION  
LOOP  
AQUASTAT  
UNION  
(TYPICAL)  
TEMPERATURE /  
PRESSURE  
GAUGE  
SQUIRE  
SOLUTION  
BOILER  
PRESSURE  
RELIEF VALVE  
7
 
Installation & Operation Manual  
3 Piping  
Figure 3-2 Piping Diagram Zoned with Valves  
ZONE #1  
PRESSURE  
PRESSURE  
GAUGE  
REDUCING VALVE  
ZONE #2  
ZONE #3  
ZONE #4  
BACKFLOW  
PREVENTER  
ZONE VALVES  
(TYPICAL)  
SYSTEM SUPPLY  
SENSOR  
MAKE UP WATER  
(WHEN USED)  
DIFFERENTIAL  
PRESSURE BYPASS  
VALVE (IF USED)  
AIR SEPARATOR  
SYSTEM  
CIRCULATOR  
EXPANSION  
TANK  
NOT TO EXCEED 4 PIPE DIA.  
OR A MAXIMUM OF 12” APART  
HOT  
WATER  
OUT  
DRAIN POINT  
(TYPICAL)  
BOILER  
CIRCULATOR  
ANTI-SCALD  
BALL VALVE  
(TYPICAL)  
MIXING VALVE  
COLD  
WATER  
IN  
RELIEF VALVE  
RECIRCULATION  
LOOP  
AQUASTAT  
UNION  
(TYPICAL)  
TEMPERATURE /  
PRESSURE  
GAUGE  
SQUIRE  
SOLUTION  
BOILER  
PRESSURE  
RELIEF VALVE  
8
 
Installation & Operation Manual  
3 Piping  
(continued)  
Figure 3-3 Knight Boiler Primary / Secondary Piping  
PRESSURE  
REDUCING VALVE  
BACKFLOW  
PRESSURE  
GAUGE  
PREVENTER  
MAKE UP WATER  
AIR  
SEPARATOR  
SYSTEM SUPPLY  
SENSOR  
TO  
FROM  
SYSTEM  
SYSTEM  
NOT TO EXCEED 4 PIPE DIA. OR  
A MAXIMUM OF 12” APART  
SYSTEM  
BALL VALVE  
(TYPICAL)  
CIRCULATOR  
BOILER  
ANTI-SCALD  
MIXING VALVE  
COLD  
WATER  
IN  
CIRCULATOR  
EXPANSION  
TANK  
DRAIN POINT  
(TYPICAL)  
DOMESTIC  
HOT WATER  
CIRCULATOR  
RECIRCULATION  
LOOP  
TANK SENSOR  
UNION  
DRAIN POINT  
(TYPICAL)  
(TYPICAL)  
TEMPERATURE /  
PRESSURE  
GAUGE  
DRAIN  
BOILER  
INDIRECT TANK  
PRESSURE  
RELIEF VALVE  
Figure 3-4 Multiple Tank Connections  
9
 
Installation & Operation Manual  
3 Piping  
Tank Piping with a “Temperature Limiting  
Valve”  
Usually, the maximum temperature of the outlet water will stay  
near the setting of the tank control. In some cases, however, hot  
water usage patterns can cause the outlet water temperature to  
rise significantly above the control setting.  
Domestic Side Piping  
Basic Domestic Piping  
Figure 3-5 on page 12 shows typical domestic water piping for  
a tank. All components except the control are provided by the  
installer. The function of the components shown are as  
follows:  
The temperature of water going to the fixtures may be more  
carefully controlled through the use of a thermostatic mixing  
valve. This device blends a controlled amount of cold water  
with the hot water leaving the tank so that water at a more  
a. Shut-off valves (recommended) - Use to isolate the  
tank for servicing.  
b. Backflow Preventer (required by some codes) - Use to  
prevent water from backing out of the tank in the event constant temperature exits the mixing valve. Anti-scald mixing  
that inlet water pressure drops.  
valve piping is illustrated in FIG.’s 3-1 thru 3-3.  
c. Expansion Tank (required when a backflow preventer is  
used) - This expansion tank absorbs the increased  
volume caused by heating water. If a backflow  
preventer is installed, this expansion tank is required  
because the increased water volume will otherwise have  
no place to go and the T & P valve will open.  
An anti-scald mixing valve does not  
eliminate the risk of scalding.  
ƽ WARNING  
*
*
*
Set the tank thermostat as low as  
practical.  
Feel water before bathing or  
showering.  
Use an expansion tank designed for use on domestic  
water systems.  
Refer to the expansion tank  
If anti-scald or anti-chill protection is  
required, use devices specifically  
designed for such service. Install  
these devices in accordance with their  
manufacturer’s instructions.  
manufacturer’s literature for the proper size expansion  
tank to use.  
If an expansion tank is used, do not put  
any valves between the expansion tank  
NOTICE  
and tank inlet.  
Multiple Tank Domestic Water Piping  
d. Unions (optional) - Use to disconnect the tank in the  
unlikely event that this is necessary.  
Figure 3-4 illustrates the recommended method of piping the  
domestic water side of several tanks together. All tanks are  
piped in true parallel. Total domestic pipe lengths must be the  
same from point of tank exit to the common “T” to ensure an  
equal draw from each tank.  
e. Drain (required) - Used to drain the tank for  
inspection or servicing.  
Each tank must have its own T&P valve. It is recommended that  
each tank be equipped with its own isolation valves, unions, and  
drains so that one tank may be removed from the system. If  
local codes require a backflow preventer, check with the  
appropriate authority to find out whether one backflow  
preventer may be used for tanks or each tank must be equipped  
with its own backflow preventer. If each tank must have its own  
backflow preventer, each tank must also have its own expansion  
tank. If a common backflow preventer is permitted, an  
expansion tank must be sized to accommodate the expansion  
volume of all tanks.  
10  
 
Installation & Operation Manual  
3 Piping  
(continued)  
For proper operation of the T&P and to  
prevent the T&P from activating due to  
boiler water temperature, use a T&P relief  
Domestic Water Piping for Distant Fixtures  
NOTICE  
NOTICE  
In some cases the furthest fixture may be quite distant from the  
tank. In such an installation the configuration shown in  
FIG. 3-5 would result in an unacceptable delay before hot water  
reaches these distant fixtures. Even if all the fixtures are  
relatively close to the tank, the building owner may want hot  
water at all fixtures as soon as they are opened.  
valve with extended element.  
The  
recommended element length is 8 inches.  
The Lochinvar SSS series water heaters will  
absorb less than 200,000 Btu/hr when  
domestic water outlet temperature is 210°F  
and boiler water supply temperature is  
240°F. Listed outputs are based on ASME  
Section VIII Interpretation VIII-1-86-136.  
Check with local codes for applicability.  
A solution to this problem is that a pipe runs from the furthest  
fixture on each branch back to the return of the tank. A small  
bronze circulator is mounted in this line and is wired so as to  
run continuously. A check valve in this line permits flow  
towards the tank inlet only.  
When no fixtures are drawing water, the bronze circulator  
moves hot water from the tank to the end of the branch just  
below the last fixture, then back to the inlet of the tank via the  
return pipe. When a fixture is opened, hot water is already out  
in the branch very close to the fixture and hot water appears at  
it almost immediately. The check valve prevents cold water in  
the tank’s inlet pipe from passing around the tank and heading  
directly to the fixture.  
Standard Installation  
Install the T&P relief valve in the connection marked  
“Relief Valve.  
T&P Relief Valve Discharge Piping  
T&P relief valve discharge piping must be:  
- made of material serviceable for a temperature of  
250°F or greater.  
Because hot water is always circulating in the hot water branch  
the entire branch should be insulated to prevent excessive heat  
loss.  
- directed so that hot water flows away from all persons.  
- directed to a suitable place for disposal.  
- installed so as to allow complete draining of the T&P  
relief valve and discharge line.  
Temperature & Pressure (T&P) Relief Valve  
- terminated within 12" of the floor.  
To reduce the risk of excessive pressures and  
ƽ CAUTION  
temperatures in the water heater, install  
T&P relief valve discharge piping must not be:  
- excessively long. Using more than two (2) elbows or  
15 feet of piping can reduce discharge capacity.  
- directly connected to a drain. Terminate discharge  
piping within 6" from drain. Refer to local codes.  
- subject to freezing.  
temperature and pressure protective  
equipment required by local codes, but no  
less than a combination temperature and  
pressure relief valve certified by a nationally  
recognized testing laboratory that maintains  
periodic inspections of production of listed  
equipment or materials, as meeting the  
requirements for Relief Valves and Automatic  
Gas Shutoff Devices for Hot Water Supply  
Systems, ANSI Z21.22. This valve must be  
marked with a maximum working pressure  
of the water heater.  
Do not install any valve between T&P relief  
valve and tank connection or on T&P relief  
ƽ WARNING  
valve discharge piping.  
Improper  
placement and piping of T&P relief valve  
can cause severe personal injury, death or  
substantial property damage.  
Every Lochinvar Indirect Water Heater  
must be protected with a T&P relief  
valve.  
T&P relief valve is not intended for  
constant duty, such a relief of pressure due  
to repeated normal system expansion.  
Correct this condition by installing a  
properly sized expansion tank in domestic  
water system. Refer to expansion tank  
manufacturer’s installation instructions  
for proper sizing.  
ƽ CAUTION  
Determine T&P relief valve size by the  
following specifications, unless they  
conflict with local codes:  
-
SSS031/041 - 3/4" NPT with an  
AGA Rating of 100,000 Btu/hr.  
-
SSS051/081/119 - 3/4" NPT with an  
AGA Rating of 200,000 Btu/hr.  
11  
 
Installation & Operation Manual  
3 Piping  
Figure 3-5 Recommended Domestic Water Piping  
12  
 
Installation & Operation Manual  
4 Wiring  
Indirect Water Heater Sensor Setup (Knight Boiler)  
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and  
dangerous operation.  
ƽ CAUTION  
4. Adjust the tank set point program as follows:  
1. Install the sensor inside the tank as depicted  
in FIG. 4-1.  
a. Press the UP or DOWN arrow key to access the  
Menu Screen.  
2. Connect the wire leads to the DHW Tank Sensor  
(AUX) connection point on the Knight boiler  
connection board (see FIG. 4-1).  
b. Select DHW set point from the Menu Screen and  
press the ENTER key.  
3. The Knight boiler will automatically read the sensor  
and default the tank temperature setting to 125°F.  
c. Press the UP or DOWN arrow key to select the  
desired temperature set point.  
d. Once the desired temperature set point is selected,  
press the ENTER key to store the set point.  
Figure 4-1 IDW Controlled Using Tank Sensor  
AUX.  
SENSOR  
OR DHW TANK  
SENSOR  
DHW TANK SENSOR  
(PLACE SENSOR IN  
TANK BULBWELL & SNAP  
CLIP OVER BULBWELL)  
13  
 
Installation & Operation Manual  
4 Wiring  
IDW Controlled Using Aquastat and Zone Circulator / Valve  
1.  
2.  
3.  
Install Aquastat to tank. Aquastat control (TST1085) can be ordered from your local Lochinvar distributor.  
Connect Aquastat to the zone controller for the Indirect Water Heater Zone.  
Adjust Aquastat to the desired temperature.  
Figure 4-2 Wiring for Zone Control  
14  
 
Installation & Operation Manual  
5 Start-up and Check-out  
4. Make sure that each zone valve or circulator operates when,  
and only when, its thermostat calls for heat. Let each zone  
operate long enough to purge any remaining air from the  
system.  
1. Make sure the system is free of leaks and that air is  
purged from the system.  
Fix any leaks found before proceeding  
CAUTION  
further. Leakage from the boiler piping  
can result in severe damage to the boiler.  
5. Set the indirect water heater to the desired temperature.  
Because hot water presents a scald hazard, it is best to set the  
thermostat at 120°F or lower and raise it only if necessary to  
provide adequate hot water.  
2. Many soldering fluxes contain Zinc Chloride which can  
cause severe corrosion damage to stainless steel. After  
completing all domestic water connections, flush the  
indirect water heater thoroughly before leaving the  
installation. This is particularly important if the indirect  
water heater will be unused for an extended period of  
time after installation. Flush the indirect water heater by  
drawing at least three times its volume from the tank.  
6. Re-enable the burner and allow the boiler to operate. Make  
sure that the boiler shuts down when the indirect water  
heater is satisfied.  
3. Make sure that all electrical connections are made  
correctly and that no exposed high voltage wiring is  
present.  
6 Maintenance  
The Lochinvar SSS series indirect water heater is an extremely simple device and as such requires very little maintenance. There  
are, however, several items which should be checked out on an annual or as needed basis to ensure a reliable supply of hot water:  
*
The indirect water heater depends upon the boiler for a  
source of heat and is therefore only as reliable as the boiler.  
Make sure that the boiler is maintained in accordance with  
the boiler manufacturer’s instructions.  
*
On an annual basis, remove the black cover over the  
hand hole and make sure the hand hole cover is  
leak-tight.  
*
*
Make sure that the rest of the boiler and domestic  
water piping is free of leaks.  
*
If a water treatment system is required to keep the water  
chemistry within the parameters shown in Table 2A (see  
Section 2 - Pre-Installation), make sure that this system is  
properly maintained.  
If there is an oil lubricated circulator in the system,  
make sure it is lubricated as called for by the  
circulator manufacturer.  
15  
 
LIMITED LIFETIME INDIRECT WATER HEATER WARRANTY  
WHAT IS THE PERIOD OF COVERAGE?  
WHAT DOES THIS LIMITED WARRANTY COVER?  
This limited lifetime warranty covers the stainless steel  
tank, stainless steel heat exchanger coil and component  
parts for leakage or other malfunction caused by defects in  
materials and/or workmanship. It extends to the first buyer  
and to any subsequent owner(s) as long as the water heater  
remains installed at its original place of installation.  
This limited warranty is effective 60 days from the date of  
manufacture as determined by the serial number. Model  
number and serial number are found on the rating plate  
affixed to the boiler. Stainless steel tanks and stainless steel  
heat exchanger coils are warranted against leakage and  
thermal shock for the lifetime of the installation. All parts  
are warranted for one (1) year.  
WHAT DOES THIS LIMITED WARRANTY NOT COVER?  
*Any water heater used for other than a single family  
housing unit will be covered for five years on tank and one  
year on parts regardless of any other warranty period  
specified. All replacement tanks and parts carry the balance  
of the original warranty, i.e. if an original five (5) year  
warranted water heater develops a leak due to defects in  
materials/workmanship after three (3) years, the  
replacement unit is warranted for the balance remaining on  
the original five (5) year warranty, or two (2) year in this  
example.  
1. This limited warranty does not cover leakage or other  
malfunction caused by:  
a. Excessive use and specifically, non-residential use.  
b. Defective Installation, and specifically, any  
installation which is made:  
I) in violation of applicable state or local  
plumbing, housing or building codes, or  
II) without a certified American Gas Association,  
ASME, or comparable combination temperature  
and pressure relief valve, or  
III) contrary to the written instructions furnished  
with this unit.  
c. Adverse local conditions, and specifically,  
sediment or lime precipitate in the tank or  
corrosive elements in the atmosphere.  
d. Misuse, and specifically, operation and  
maintenance contrary to the written instructions  
furnished with the unit, , disconnection, alteration  
or addition of non-approved components or  
apparatus,operation with fuels or at settings other  
than those set forth on the rating plate, or accidental  
or other exterior damage.  
WHAT IS THE DURATION OF THE IMPLIED WARRANTY?  
Any implied warranty, including the warranty of  
merchantability imposed on the sale of the water  
heater under the laws of the state of sale are limited in  
duration to one year from date of original installation.  
HOW DOES STATE LAW RELATE TO THE WARRANTY?  
Some states do not allow:  
1. Limitations on how long an implied warranty lasts.  
2. Limitations on incidental or consequential damages.  
2. This warranty also does not cover:  
a. Production of noise, taste, odors, discoloration or  
rusty water.  
The above limitations or exclusions may not apply to you.  
This warranty gives you specific legal rights, and you may  
also have other rights which vary from state to state.  
b. Damage to surrounding area or property caused by  
leakage or malfunction.  
c. Costs associated with the replacement and/or  
repair of the unit, including:  
I) any freight, shipping or delivery charges  
II) any removal, installation or re-installation  
charges  
III) any material, and/or permits required for  
installation, re-installation or repair  
IV) charges to return the defective water heater  
and/or component part to the manufacturer.  
WHAT IS THE PERIOD OF COVERAGE?  
16  
 
LIMITED LIFETIME INDIRECT WATER HEATER WARRANTY (CONTINUED)  
WHAT SHOULD YOU DO TO KEEP  
THE WARRANTY IN EFFECT?  
WHAT WILL WE DO TO CORRECT PROBLEM?  
If a defect occurs within the warranty period, we will:  
To facilitate warranty service, you should:  
1. Provide a comparable replacement water heater of our  
manufacture, (or at our option repair) any unit which  
develops a leak in the stainless steel tank or heat  
exchanger coil within the warranty period. To obtain a  
replacement, you must have the rating plate from the  
defective unit..  
1. Follow all instructions enclosed with the product.  
2. Retain all bills of sale or receipts for proof of  
installation, etc.  
3. Contact your installer or dealer as soon as any  
problem or defect is noticed.  
2. Provide a replacement part (or at our option repair)  
any part which fails to function within the part warranty  
period. To obtain the replacement, you must turn in the  
defective part. We do reserve the right to verify any  
claims of defect by inspection.  
4. When necessary, allow our chosen representative, to  
inspect the unit.  
5. For your reference, fill in the Model and Serial  
Number found on the unit’s Rating Plate:  
NOTE: If government regulations require the replacement  
water heater to have features not found on the original  
water heater, you will be required to pay the difference in  
price represented by the required features.  
Model Number  
Serial Number  
WHAT WILL WE NOT DO?  
We will not:  
Date of Installation  
1. Repair or replace any water heater, or part, subject to  
conditions outlined in “What Does This Limited  
Warranty Not Cover?”  
2. Reimburse any costs associated with repair and/or  
replacement.  
3. Replace and/or repair any water heater without  
complete model/serial number.  
4. Replace any water heater without prior receipt of  
actual rating plate from the appliance.  
SAFETY WARNING  
Water heaters are heat producing appliances and to avoid damage or injury in the event of possible overheating of  
the outer jacket:  
1. No materials should be stored against the jacket.  
2. Care should be taken to avoid unnecessary contact (especially by children) with the jacket.  
UNDER NO CIRCUMSTANCES SHOULD FLAMMABLE MATERIALS, SUCH AS GASOLINE OR  
PAINT THINNERS, BE USED OR STORED IN THE VICINITY OF THE HEATER OR IN ANY  
LOCATION FROM WHICH FUMES COULD REACH THE HEATER.  
For your comfort, enjoyment and safety, please read the enclosed operation instructions carefully.  
Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000  
©–12/06—Printed in U.S.A.  
SS-WAR-01  
17  
 
Notes  
18  
 
Notes  
19  
 
Revision Notes: Revision B (SSS-I&O-Rev B)  
reflects edits and additions made to the piping  
diagrams.  
Revision C (SSS-I&O-Rev C) reflects edits made to  
the piping diagrams, the DHW Tank Sensor (AUX)  
and the addition of the warranty.  
Revision D (ECO #C02870) reflects the addition of  
the scald chart on page 3.  
SSS-I&O Rev D  
1/09 - Printed in U.S.A.  
 

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