Lochinvar Lock Temp SJS060 User manual

Installation & Operation Manual
Models: 60 - 119
The information contained in
this manual is intended for use by
qualified professional installers, or
service technicians. Consult your
local expert for proper installation
or service procedures.
WARNING
Save this manual for future reference.
SJS-I-O Rev D
-- This storage tank MUST NOT be installed in
any location where gasoline or flammable vapors
are likely to be present.
-- 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 near by
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.
WARNING: 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.
®
LOW LEAD CONTENT

2
Hazard definitions
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels
or to important information concerning the life of the product.
DANGER
WARNING
CAUTION
CAUTION
NOTICE
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTICE indicates special instructions on installation, operation, or maintenance that are important but not
related to personal injury or property damage.
Contents
CONTENTS........................................................................ 2
HAZARD DEFINITIONS..................................................... 2
1. GENERAL INFORMATION........................................ 3-4
Operating Restrictions.................................................. 4
2. INSTALLATION............................................................. 5
Pre-Installation.............................................................. 5
Transporting and unpacking the unit............................ 5
Examining the unit....................................................... 5
Anchoring the unit......................................................... 5
Recommended service clearances ............................. 5
Connecting the hot water source.................................. 6
Hot water outlet ............................................................ 6
Mixing valve.................................................................. 6
Aquastat / bulbwell ....................................................... 6
Piping the relief valve ....................................................7
Drain ............................................................................. 7
Completing the installation ........................................... 7
3. OPERATION................................................................. 8
Startup procedure..........................................................8
Shutdown procedure......................................................8
4. INSPECTION................................................................ 9
5. MAINTENANCE.......................................................... 10
Flushing the tank........................................................ 10
Revision Notes.................................................. Back Cover
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
1 General information
Table 1A 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.
APPROXIMATE TIME / TEMPERATURE
RELATIONSHIPS IN SCALDS
120°F More than 5 minutes
125°F 1 1/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1 1/2 seconds
155°F About 1 second
Table 1A Approximate Time / Temperature Scald Chart
Figure 1-1 Lochinvar SJS Series Storage Tank
IMG00542
B
A
C
E D
F
SENSOR WELL
FROM WATER HEATER
TO WATER HEATER
DRAIN VALVE
(SHIPPED LOOSE)
HOT WATER OUTLET
23°
23°
MODEL
NUMBER ABCDEF
RECIRCULATION
TAPPINGS OUTLET
SJS060 36 28 14.25 9.25 9 28 1-1/2" NPT 1-1/2" NPT
SJS080 69.5 61.75 14.25 9.25 9 24 2" NPT 1-1/2" NPT
SJS119 68.3 60.12 14.5 9.5 9 28 2" NPT 1-1/2" NPT
WARNING • Before using product, read and
understand instructions.
• Save these instructions for future
reference.
• All work must be performed by
qualified personnel trained in the
proper application, installation, and
maintenance of the water systems in
accordance with all applicable codes
and ordinances.
• To prevent serious burns, wear heat
resistant gloves when handling hot
equipment.
Failure to follow this warning could
cause property damage, personal injury,
or death.
Installation and Operation Manual
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4
WARNING Areas of potential danger:
1. All water lines, joints, and valves.
2. If the unit has been in operation, allow
the water in the heater and all
componentsandsurfaces(tanksurface,
water piping, etc.,) to cool before
starting any maintenance procedures.
3. Assurethatallpowertoassociatedwater
heating equipment has been shut off
and disconnected before attempting
any procedures.
4. Assure that all incoming and outgoing
water lines have been shut off at the
manual shutoff valves.
WARNING Heated water presents situations that
can be very dangerous due to the fact
they are under pressure and at very high
temperatures. To avoid possible injury or
death, use common sense and follow all
accepted and recommended procedures
when performing installation, operation,
and maintenance procedures.
WARNING The combination of electricity and water
can pose a very dangerous situation.
Assure that all power has been shut off /
disconnected from any associated water
heater equipement before attempting any
installation or maintenance procedures.
1 General information
This manual is intended to cover installation, operation, and
maintenance procedures for Lochinvar’s SJS Storage Tank.
Instructions may not be specific to every system.
If questions are not answered by this manual, or if specific
installation, operation, and/or maintenance procedures are
not clearly understood, contact Lochinvar for clarification
before proceeding.
Storage Tanks are designed for indoor use only. It should
be located on a level surface (no more than one-half degree
of slope), capable of supporting the total weight of the unit
when filled to capacity.
The unit should be mounted to the floor following applicable
architectural and local code requirements for the specific
installation site. NOTE: Tanks do not come standard with
floor tie downs.
For all piping connections, the use and/or type of joint
compound or sealer on the joints should be determined
by referring to local codes, accepted standards, and/or the
requirements of the installing contractor.
Tank construction
Storage Tanks are pre-engineered and pre-assembled complete
with all fittings. And like every Lochinvar product, they are
thoroughly tested to ensure proper performance from the
moment they are installed.
Gallon Capacities -- Lochinvar tanks are available in gallon
capacities from 60 to 119 gallons.
Pressure Rating -- Lochinvar tanks are available with a
maximum 150 psi working pressure.
Temperature Rating -- Lochinvar tanks are available with a
maximum temperature of 210°F.
Tank -- Lochinvar tanks are constructed of 316L stainless steel
with Polypropylene/ABS jackets to prevent rusting.
Insulation -- Tanks are insulated with a Polyeurethane foam
mixture that has an R value of R-16. These tanks are for indoor
installation only.
Relief Valve Tapping -- A tapping is provided for the installation
of a factory supplied ASME/ANSI safety relief valve.
Hot Water Recirculation Tappings -- Lochinvar storage tanks
will have two (2) tappings on the tank to provide recirculation
piping between the tank and a hot water source.
Hot Water Outlet -- A Hot Water Outlet Tapping is positioned
on the top of the tank for connection to the building system.
Drain -- A tapping or drain pipe will be connected to a low
point on the tank for drainage.
Aquastat Bulbwell -- All Lochinvar tanks are provided with a
bulbwell for the location of control sensors.
Installation and Operation Manual
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5
Transporting and unpacking the
unit
Each jacketed Lochinvar SJS Storage Tank is cartoned as
necessary at the factory. The carton is designed to provide
protection for the unit during transportation, and to
provide a safe means by which to lift and move the unit
with a fork lift or hand truck.
Examining the unit
After the unit has been uncartoned and set in place, it should
be carefully examined to assure the tank has not been damaged
during shipping. If any evidence of damage is detected that
could affect the safe operation of the unit, contact Lochinvar
, LLC., or your authorized sales representative, to report the
damage and to receive instructions on how to proceed.
After the unit and all components have been inspected for
damage, it is suggested that all optional or independent
pressure and temperature control components be checked
to assure that they meet or exceed design specifications.
If any discrepancy is found, contact Lochinvar, LLC., or
your authorized representative, before proceeding with the
installation.
Anchoring the unit
The unit should be anchored to the floor, following applicable
architectural / local code requirements, or accepted standards
for the specific installation site. The unit should be installed
in a location with sufficient clearance for service and repair.
Check local codes for Seismic anchoring requirements. If
further assistance is needed, call the Lochinvar Technical
Service Department and request a Seismic Report.
2 Installation
Pre-Installation
1. The installation must conform to the instructions
in this manual and all applicable local, state,
provincial, and national codes, laws, regulations, and
ordinances. Installations in Canada must conform to
B149.2 Installation Code.
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.
Water with characteristics outside the
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. Read and understand all installation requirements in
this manual.
Table 2A
Water Chemistry Requirements
Water used in the tank must have characteristics falling
within the following limits:
Characteristic Min. Max.
Ph 6.0 8.0
Chloride (PPM) -- 80
CAUTION
Recommended clearances
The installation location must provide adequate clearances for
servicing and proper operation of the tank. A 12 inch vertical
clearance is recommended from the top of the tank. A zero
clearance is allowed for the sides of the tank.
Installation and Operation Manual
®
Locating the tank
The appliance MUST be located where
leakage from the relief valve, leakage from
related piping, or leakage from the tank
or connections, will not result in damage
to the surrounding areas, or to the lower
floors of the building. A hot water storage
tank should always be located in an area
with a floor drain or installed in a drain pan
suitable for water heaters. The manufacturer
shall not be held liable for any such water
damage.
CAUTION

6
Hot water outlet
The next step in the installation process is to connect the hot
water system piping to the hot water outlet port. The hot
water supply tapping is located on top of the tank.
A manual shutoff valve should be installed downstream on
the hot water outlet line as an isolation device in case the
unit must be disconnected from the system. The shutoff
valve should be in the closed position and remain so until the
installation is complete.
Mixing valve
Field supplied. An anti-scald mixing valve is recommended
when storing domestic hot water above 115°F.
Aquastat bulbwell
Review the controls for the hot water source equipment. Some
equipment or systems designs will require an independent
aquastat (field supplied) to control the equipment. The
aquastat may be surface mounted onto the jacket of the
tank or a nearby surface. The water sensing probe may be
installed in the 3/8" diameter dry bulbwell supplied with all
Lochinvar Hot Water Storage Tanks. The equipment may
employ a water sensing thermistor. The thermistor would be
installed into the dry bulbwell and wired back to the hot water
equipment.
2 Installation
WARNING Before making any connections of water
inlet or outlet to the unit, assure that
all piping is clean and free of foreign
material or scale. This can usually be
accomplished by “blowing out” the pipe.
Any foreign material or scale entering the
unit can adversely affect operation and
performance.
The two (2) tappings on the lower side of the tank shall
provide recirculation between the tank and the water heating
source. See example piping diagram between a storage tank
and an indirect gas fired water heater (FIG. 2-1).
Connecting the hot water source
NOTICE See the Water Heater’s Installation and
Operation manual for specific piping
diagrams that match the inlet / outlet
water tappings on the tank to the inlet /
outlet water tappings on the water heater.
Tapping locations on the water heater
may vary by product or manufacturer.
Figure 2-1_Vertical Tank Piping Diagram
FLOW CHECK
VALVE (TYPICAL)
EXPANSION
TANK
THERMOMETER
COLD WATER
SUPPLY
HOT WATER
SUPPLY
BUILDING
RETURN
RELIEF
VALVE
FLOW
SWITCH
WATER
HEATER
CIRCULATOR
STORAGE
TANK
WATER
HEATER
UNION
(TYPICAL)
BALL VALVE
(TYPICAL)
MIXING VALVE
Y-STRAINER
[RECOMMENDED]
IMG00606
NOTICE For all piping connections, the use and /
or type of joint compound or sealer on the
joint should be determined by referring
to local codes, accepted practices, or the
requirements of the installing contractor.
If the cold water supply to the system is equipped with
an in-line check valve or backflow preventer, a suitable
expansion tank must be installed in the cold water supply
line.
Installation and Operation Manual
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7
WARNING Do not install a manual shut off valve
between the relief valve and the discharge.
Doing so could cause serious injury or death
if the relief valve released and the manual
valve was closed. This would cause excessive
buildup of pressure in the storage tank which
could result in an explosion.
Drain
The tanks’ drain connection must be piped to a suitable floor
drain. Brass drain cocks are acceptable. A brass full port ball
valve is recommended to improve water flow.
Completing installation
Installation of the Lochinvar Hot Water Storage Tank is now
complete. All documentation supplied with the unit should
be passed along to maintenance personnel for future reference.
Piping the relief valve (Relief valve is field
supplied)
All Lochinvar SJS Storage Tanks are equipped with a relief valve
tapping on the tank. The valve should be piped to a discharge
line leading to a suitable drain. Piping the pressure relief valve
to a suitable drain will prevent both water and heat damage to
the unit, as well as reduce the risk of injury from released heated
water. The pipe must be of adequate size to properly handle the
capacity of the relief valve and discharge line.
Check local codes to assure compliance. If a check valve has
been installed on the inlet water line, thermal expansion may
take place causing build up of excessive pressure when the water
is being heated. This expansion will cause the relief valve to
open, releasing hot water to the discharge line. A properly sized
expansion tank must be installed to protect the system from
water expansion.
2 Installation (continued)
Installation and Operation Manual
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8
After all installation procedures have been completed, and
all water piping to the energy source and power connections
have been double checked, the unit is ready for operation.
The following Startup Procedure focuses on the storage tank.
Check the Installation and Operation Manual of the hot water
source for additional startup and shutdown procedures.
Startup procedure
1. Assure that all manual shutoff valves are closed.
2. Slowly open the manual shutoff valve on the cold water
supply line and the valves in the hot water source
recirculation piping. Check to assure that there are not
leaks at the valve or any joints. Allow the tank to fill with
water. As the tank is filling, hold the relief valve
open to allow air to bleed out of the tank. Hot water
faucets at the highest location in the building should also
be opened. This will speed the filling process. Make sure
the tank is full of water and free of air.
3. Open the manual shutoff valves.
4. Turn on the recirculation pump between the water heater
and the tank.
After the power to the pump is turned on verify that the
pump is working. If the pump is an oil lubricated unit,
verify proper oiling.
WARNING Heated water presents situations that
can be very dangerous because of the
high temperatures and pressures. Use
common sense and follow all accepted
and recommended procedures when
performing installation, operation, and
maintenance procedures to avoid possible
injury or death.
Shutdown procedure
1. Turn off all power to the circulating pump and the hot
water source controls.
2. Close all valves in the system in the following order:
• the hot water outlet line;
• the recirculation water piping
3. Relieve the pressure where possible.
4. After the system has cooled, drain the unit by opening
the tank drain valve and holding the relief valve
in the open position. This will prevent the formation of
a vacuum and increase the drainage flow.
5. Proceed with the required maintenance or repairs.
6. After performing the required maintenance or repairs,
return the unit to operation by following the Startup
Procedure.
5. Follow the Startup procedure for the water heater to
initiate a call for heat. Adjust the operating temperature
control to the desired operating temperature and set the
safety high limit.
6. As the unit is heating the water, carefully re-inspect water
recirculation piping and the tank hot water outlet for
signs of leakage.
7. As the unit approaches the desired operating
temperature, adjust the temperature controls.
8. After the unit has reached operating temperature,
re-inspect all joints for signs of leakage. In addition,
check all gauges and controls to verify that the water
temperature and pressure are within design
specifications.
9. The unit is now ready for normal operation.
3 Operation
Installation and Operation Manual
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9
The following table summarizes the recommended time intervals for inspections of the tank, components, water piping and
power connections.
RECOMMENDED INSPECTIONS
To Be Inspected
Time Interval
Per
Manufacturer
Specs Weekly Monthly Quarterly Annually
Circulating Pump 
Gauges - Pressure &
Temperature 
Lines - Inlet, Outlet, &
Return 
Pressure Relief Valve 
Shutoff Valves - Manual 
Temperatures - Water &
Operating 
Thermometer 
Interior for Sediment or Scale 
Flush tank at six (6) month
intervals 
4 Inspection
Installation and Operation Manual
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10
5 Maintenance
A new tank installation should have a regular inspection
program set up. The first inspection should be within the first
three months of operation. Once the tendency to accumulate
sediment has been established, the inspection program can
be modified to suit the water conditions. Typical inspection
programs flush the tank at six-month intervals and clean the
tank in yearly intervals.
Deliming solvents or acid type flush agents are not
recommended for use. These chemical cleaners are usually
designed for use in non-potable systems such as heating
boilers. These chemicals may be aggressive and cause damage
to the tank.
WARNING Hot water will be released under pressure.
Avoid contact with the hot discharge water
to prevent the risk of severe scald injury.
Flushing the storage tank
Since mineral accumulation occurs in an un-fired tank it
will be in a soft sediment form. This soft sediment can be
removed by a regular flushing of the lower portion of the
tank.
To flush the tank, follow these steps:
1. Turn off electrical power to the circulating pump and any
other tank accessories.
2. Close the valve on the hot water outlet on top of the
storage tank.
3. Ensure that the drain located on the bottom of the tank
is routed to a floor drain with adequate capacity to allow
the tank to be flushed.
4. Open the drain valve and allow the incoming cold water
to flush the soft sediment out the bottom of the storage
tank. Use extreme caution, as the water exiting the tank
drain may be very hot. Avoid contact with the hot
discharge water to prevent the risk of severe scald injury.
5. Observe the color of the water initially discharged from
the tank drain. This water will generally be milky or
slightly discolored by the sediment discharge. Allow the
drain to run until the water runs clear.
6. Close the drain valve on the tank.
7. Open the hot water outlet valve on top of the tank.
8. Open an adjacent hot water tap to purge any air that may
have entered the storage tank during the draining
process. Close the hot water tap if no air discharge is
observed.
9. Turn on electric power to the circulating pump and other
electrical components if necessary.
10. Observe tank and piping to ensure all components are
functioning properly.
Installation and Operation Manual
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11
Notes
Installation and Operation Manual
®

Revision Notes: Revision A (ECO #C11841) initial
release.
Revision B (ECO C11908) reflects the update of
chart information in FIG. 1-1 on page 3 for SJS080.
Revision C (ECO #C12382) reflects the addition of
the CSA Low Lead Content logo.
Revision D (ECO C15671) reflects the addition of the
“Locating the tank” caution on page 5.
SJS-I-O Rev D
07/14