Page 1
Installation
Start-Up
Maintenance
Parts
Superstor Ultra
Stainless Steel Storage Tanks
Warranty
For Residential and Commercial Use
SSU CB Models
This manual must only be used by a qualied installer / service technician. Read all instructions in this manual before installing.
Perform steps in the given order. Failure to do so could result in substantial property damage, severe personal injury, or death.
California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer, birth
defects, or other reproductive harm.
The manufacturer reserves the right to make product changes or updates without notice and will not be held liable for
typographical errors in literature.
The surfaces of these products contacted by potable (consumable) water contain less than 0.25% lead by weight as required
by the Safe Drinking Water Act, Section 1417.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
272 Duchaine Blvd New Bedford, MA 02745 www.htproducts.com
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 2
2
The following dened terms are used throughout this manual to
bring attention to the presence of hazards of various risk levels or to
important product information.
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in serious personal injury or death.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in personal injury or death.
D. Temperature and Pressure Relief Valve 6
E. Potable Expansion Tank 6
F. Scalding 6
G. Applications 7
Part 4 - Control and Wiring 7
A. Control 7
B. Wiring 7
C. Wiring Diagram 7
Part 5 - Start-Up and Operation 7
Part 6 - Maintenance and Troubleshooting 8
Ten (10) Year Limited Warranty 10
Customer Installation Record Form 12
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in moderate or minor personal injury.
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may result in
property damage.
NOTICE is used to address practices not related to personal injury.
Foreword
This manual is intended to be used in conjunction with other literature
provided with the storage tank. This includes all related control
information. It is important that this manual, all other documents
included with this system, and additional publications be reviewed in
their entirety before beginning any work.
Installation should be made in accordance with the regulations of
the Authority Having Jurisdiction, local code authorities, and utility
companies which pertain to this type of water heating equipment.
Authority Having Jurisdiction (AHJ) – The AHJ may be a federal, state,
local government, or individual such as a re chief, re marshal, chief
of a re prevention bureau, labor department or health department,
building ocial or electrical inspector, or others having statutory
authority. In some circumstances, the property owner or his/her agent
assumes the role, and at government installations, the commanding
ocer or departmental ocial may be the AHJ.
NOTE: HTP reserves the right to modify product technical specications
and components without prior notice.
For the Installer
This storage tank must be installed by qualied and licensed personnel.
The installer should be guided by the instructions furnished with the
storage tank, and by local codes and utility company requirements.
Installations Must Comply With:
Local, state, provincial, and national codes, laws, regulations, and
ordinances.
Table of Contents
Part 1 - General Safety Information 2
A. When Servicing the Water Heating System 3
B. System Water 3
C. Freeze Protection 3
D. Water Temperature Adjustment 3
Part 2 - Prepare the Storage Tank 3
A. Locating the Storage Tank 3
B. Water Chemistry Requirements 4
Part 3 - Piping 4
A. Plumbing 4
B. Tankless Coil Connections 4
C. Hot Water Outlet 5
From the Uniform Plumbing Code 2000 - Section 510 -
Protection From Damage
1. All storage tanks installed in areas where they may be subjected
to mechanical damage shall be suitably guarded against such
damage by being installed behind adequate barriers or by being
elevated or located out of the normal path of a vehicle using any
such garage.
2. In seismic zones 3 and 4, storage tanks shall be anchored or
strapped to resist horizontal displacement due to earthquake
motion. Strapping shall be at points within the upper one-third
(1/3) and lower one-third (1/3) of its vertical dimensions. At the
lower point, a minimum distance of four (4) inches (102 mm) shall
be maintained above the controls with the strapping.
3. A storage tank supported from the ground shall rest on level
concrete or other approved base extending not less than three (3)
inches (76 mm) above the adjoining ground level.
4. When a storage tank is located in an attic, attic-ceiling assembly,
oor-ceiling assembly, or oor-suboor assembly where damage
may result from a leaking storage tank, a watertight pan of
corrosion resistant materials shall be installed beneath the storage
tank with a minimum three-quarter (3/4) inch (20 mm) diameter
drain to an approved location.
Part 1 - General Safety Information
This storage tank is approved for indoor installations only and is
not intended for use in swimming pool applications. Clearance
to combustible materials: 0” top, bottom, sides, and back. Tank
must have room for service: 24” front and 6” sides are minimum
recommended service clearances. (A combustible door or removable
panel is acceptable front clearance.) This storage tank has been
approved for closet installation and installation on combustible
ooring. Install the storage tank in a location where temperature
and pressure relief valve discharge or a leak will not result in damage
to the surrounding area.
Installer - Read all instructions in this manual before installing.
Perform steps in the given order.
User - This manual is for use only by a qualied heating installer
/ service technician. Have this storage tank serviced / inspected
annually by a qualied service technician.
NOTE: Obey all local codes. Obtain all applicable permits before
installing the storage tank.
NOTE: Install all system components and piping in such a manner
that does not reduce the performance of any re rated assembly.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 3
NOTE: If the storage tank is exposed to the following, do not
operate. Immediately call a qualied service technician.
1. Fire
2. Damage
3. Water
Failure to adhere to these guidelines can result in substantial
property damage, severe personal injury, or death.
3
A. Locating the Storage Tank
This storage tank is certied for indoor use only. DO NOT INSTALL
OUTDOORS. Outdoor installations ARE NOT covered by warranty.
Choose a location for the storage tank as centralized to the piping
system as possible. Also, locate the storage tank and domestic water
piping where it will not be exposed to freezing temperatures. All
piping should be insulated. Additionally, place the storage tank so that
the drain, controls, and inlets/outlets are easily accessible.
High heat sources (sources generating heat 100oF / 37oC or
greater, such as stove pipes, space heaters, etc.) may damage
plastic components of the storage tank as well as plastic vent
pipe materials. Such damages ARE NOT covered by warranty. It is
recommended to keep a minimum clearance of 8” from high heat
sources. Observe heat source manufacturer instructions, as well
as local, state, provincial, and national codes, laws, regulations
and ordinances when installing this storage tank and related
components near high heat sources.
Do not use this storage tank for anything other than its intended
purpose (as described in this manual). Doing so could result in
property damage and WILL VOID product warranty.
UNCRATING THE STORAGE TANK - Any claims for damage or
shortage in shipment must be led immediately against the
transportation company by the consignee.
A. When Servicing the Water Heating System
To avoid electric shock, disconnect electrical supply before
performing maintenance.
To avoid severe burns, allow storage tank and associated equipment
to cool before servicing.
B. System Water
Do not use petroleum-based cleaning or sealing compounds in
a water heating system. Gaskets and seals in the system may be
damaged. This can result in substantial property damage.
Do not use “homemade cures” or “patent medicines”. Damage to the
storage tank, substantial property damage, and/or serious personal
injury may result.
C. Freeze Protection
NOTE: Consider piping and installation when determining tank
location. Place the storage tank as close to the boiler as possible in a
location not prone to freezing.
Failure of the storage tank due to freeze related damage IS NOT
covered by product warranty.
D. Water Temperature Adjustment
If the storage tank is going to have a set temperature above 120oF,
you must use an ASSE 1017 rated mixing valve to avoid severe burns
or death from scalding temperatures.
Households with small children, disabled, or elderly persons may
require a 120oF or lower temperature setting to prevent severe
personal injury or death due to scalding.
Part 2 - Prepare the Storage Tank
Remove all sides of the shipping crate to allow the tank to be moved
into its installation location.
This storage tank must be installed upright in the vertical position as
described in this manual. DO NOT attempt to install this storage tank
in any other orientation. Doing so will result in improper storage
tank operation and property damage, and could result in serious
personal injury or death.
Ensure the location can support the entire lled weight of the
storage tank. Failure to properly support the storage tank could
result in property damage, severe personal injury, or death.
COLD WEATHER HANDLING - If the storage tank has been stored
in a very cold location (BELOW 0oF) before installation, handle with
care until the components come to room temperature. Failure to do
so could result in damage to the storage tank.
All water heaters eventually leak. Locate the water heater where any
leakage from the relief valve, related piping, tank, or connections
will not result in damage to surrounding areas or lower oors of the
building. Any water heater should be installed in such a manner that
if it should leak the resulting ow of water will not cause damage
to the area in which it is installed. National Plumbing codes require
a drain pan for any water heater installation. This drain pan should
be sized with a maximum depth of 2”, and a minimum diameter
2” greater than the diameter of the water heater. The drain pan
should empty into an open drain line. This drain line should be
3/4” ID minimum, piped to an open drain. Leakage damages ARE
NOT covered by warranty. Failure to install a drain pan is the sole
responsibility of the owner and/or installer. Reference UPC 2000
(Uniform Plumbing Code) Section 510 - Protection from Damage or
IPC 200 (International Plumbing code) Section 504 - Safety Devices.
Leakage damages ARE NOT covered by warranty.
In addition, water leak detection devices and automatic water shuto
valves are readily available at plumbing supply houses. IT IS HIGHLY
RECOMMENDED BY THE MANUFACTURER TO INSTALL WATER LEAK
DETECTION DEVICES AND AUTOMATIC SHUTOFF VALVES IN ANY
WATER HEATER INSTALLATION WHERE A LEAKAGE OF WATER COULD
RESULT IN PROPERTY DAMAGES.
NOTE: To save on heating costs and improve energy eciency keep
the distance between the boiler and storage tank to a minimum
to reduce heat loss from excess piping and keep friction loss at a
minimum. Ensure all piping between the boiler and storage tank is
properly insulated to minimize heat loss.
The storage tank may be located some distance from the boiler
provided the circulator meets ow requirements. The greater the
distance from the boiler to the storage tank the longer the response
will be to a call for hot water.
This storage tank must be installed vertical on a level surface.
NOTE: In the State of California, the storage tank must be braced,
anchored, or strapped to avoid moving during an earthquake. Contact
local utilities for code requirements in your area. Visit http://www.dsa.
dgs.ca.gov or call 1-916-445-8100 and request instructions.
However, applicable local codes shall govern installation. For residential
storage tanks of a capacity of greater than 52 gallons, consult the local
building jurisdiction for acceptable bracing procedures.
NOTE: If you do not provide the minimum clearances shown in
Figure 1, it might not be possible to service the storage tank without
lp-32 Rev. 003 Rel. 010 Date 2.22.19
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4
removing it from the space.
NOTE: A combustible door or removable panel is acceptable front
clearance.
This storage tank must not be located near ammable liquids such
as gasoline, butane, liqueed propane, adhesives, solvents, paint
thinners, etc., as the controls of this storage tank could ignite these
vapors and cause an explosion resulting in property damage, severe
personal injury, or death.
• If the pH is not between 6.5 and 8.5, consult a local water
treatment company for solutions.
Hardness less than 12 grains (200 mg/L)
• Hardness levels above the required amounts can lead to
lime scale build-up throughout the system. Water below 5
grains/gallon (85 mg/L) may be over softened.
• Consult local water treatment companies for unusually
hard water areas (above the required amounts) or for other
treatment solutions if water is being over softened (below 5
grains/gallon [85 mg/L]).
Chloride concentration less than 100 ppm (mg/L)
• Do not ll storage tank or operate with water containing
chlorides in excess of 100 ppm (mg/L).
• Using chlorinated fresh water should be acceptable as levels
are typically less than 5 ppm (mg/L).
• Do not connect the storage tank to directly heat swimming
pool or spa water.
Total Dissolved Solids (TDS) less than 500 ppm (mg/L)
• Total dissolved solids are minerals, salts, metals, and charged
particles that are dissolved in water.
• The greater the amounts of TDS present, the higher the
corrosion potential due to increased conductivity in the
water.
• If using softened water to ll the storage tank, it is still possible
to have high TDS. This water can be corrosive. Consult local
water treatment companies for other treatment solutions to
reduce this aect.
*NOTE: To promote storage tank service life, it is strongly
recommended to follow the maintenance procedures in this manual.
Figure 1 - Recommended Service Clearances
B. Water Chemistry Requirements
Chemical imbalance of the water supply may aect eciency and
cause severe damage to the storage tank and associated equipment.
Water quality must be professionally analyzed to determine whether
it is necessary to treat the water. Various solutions are available to
adjust water quality. Adverse water quality will aect the reliability
of the system. In addition, operating temperatures above 135oF
will accelerate the build-up of lime scale and possibly shorten tank
service life. Failure of a storage tank due to lime scale build-up, low
pH, or other chemical imbalance IS NOT covered by the warranty.
The water must be potable, free of corrosive chemicals, sand, dirt,
and other contaminates. It is up to the installer to ensure the water
does not contain corrosive chemicals or elements that can damage
the heat exchanger. Potable water is dened as drinkable water
supplied from utility or well water in compliance with EPA secondary
maximum contaminant levels (40 CFR Part 143.3). If the water contains
contaminants higher than outlined by the EPA, water treatment is
recommended and additional, more frequent maintenance may be
required.
If you suspect that your water is contaminated in any way, discontinue
use of the storage tank and contact an authorized technician or
licensed professional.
Water pH between 6.5 and 8.5
• pH levels below 6.5 can cause an increase in the rate of
corrosion. pH of 8.5 or higher can potentially cause lime scale
build-up
• Maintain water pH between 6.5 and 8.5. Check with litmus
paper or have it chemically analyzed by a local water treatment
company.
Part 3 - Piping
A. Plumbing
It is mandatory that all plumbing be done in accordance with
federal, local, and state plumbing codes and practices. Failure to
properly install the storage tank WILL VOID the warranty. It is also
necessary to use both thread tape and pipe dope on all mechanical
plumbing connections.
When lling the storage tank, open a hot water tap to release air
in the tank and piping. Failure to do so could lead to improper
operation and damage to components.
The use of heat, such as blow torches, near the tank may cause
distortion to the high density polyethylene wrapper. Such damage
is NOT covered by warranty. Exercise caution whenever using heat
sources near tank.
Never use dielectric ttings or galvanized steel ttings on any
domestic water connections. Use only copper or brass ttings.
Failure to do so will result in premature storage tank failure. Such
failure IS NOT covered by warranty.
B. Tankless Coil Connections
Use a 3/4” nominal minimum pipe size. On the tank, the tankless inlet
is to be connected to a bronze or stainless steel circulator with the
arrow pointing away from the tank and toward the tankless coil. This
pipe will also have a tee for the cold supply to the tankless coil. (An
optional check valve may be installed between the cold supply line
and circulator to prevent short circulating the tankless coil. This may
cause poor supply pressure, or noisy operation depending upon the
type of installation.)
On the tank, tankless outlet, use both thread tape and pipe dope
and connect a 3/4” (minimum) tube adapter and connect this to the
hot tankless coil outlet on the boiler.
NOTE: See “Typical Installation”, Figure 3.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 5
5
36.00°
45.00°
A
E
E
D
C
B
D
C
B
A
DIMENSIONS
MODEL A B C D E
SSU-20CB 19-1/4" 4-1/2" 14-1/2" 21-3/4" 27-1/2"
Figure 2 - Specications and Dimensions
HOT
OUTLET
E
D
ERMOSTAT
TH
LOCATION
TEST
PRESSURE
WORKING
PRESSURE
300 PSI 150 PSI
A
CONNECTION
78.00°
INLET/OUTLET
CONTROL
WELL
COLD WATER
DRAIN
NOLLAG 911/08 60 GALLON20/30/45 GALLON
SIZES
T&P
LP-32-C
02/21/19
02/21/19
36.00°
C
B
WEIGHT
(LBS)
25 3/4" NPT
TPN "4/304"2/1-93"4/3-33"2/1-41"2/1-4"4/1-91BC03-USS
TPN "4/346"2/1-95"4/3-54"2/1-41"2/1-4"4/1-91BC54-USS
TPN "109"2/1-25"4/3-54"2/1-41"2/1-4"4/1-32BC06-USS
TPN "2/1-1921"27"4/3-46"61"6"4/1-32BC08-USS
TPN "2/1-1871"2/1-37"66"4/1-71"4/1-7"72BC911-USS
C. Hot Water Outlet
20 - 45 Gallon Storage Tanks: Use both thread tape and pipe dope
to connect a 3/4” NPT brass tee. In the run of the brass tee, install a
3/4” NPT brass T&P long element for hot water heaters, as required
by local codes, but not less than a valve certied for meeting the
requirements for relief valves for water heaters (ANSI Z21.22 and
CAN1-4.4) by a nationally recognized lab that maintains periodic
inspection of production of listed equipment. The T&P valve must be
plumbed down, so discharge will exit at least 6” above the structural
oor and not contact any live electrical parts. In the bottom of the
tee (branch) vertically down, install a 3/4” NPT x 3/4” (minimum) tube
adapter. Then install two 3/4” (minimum) sweat street 90 degree
elbows.
It may be recommended to use a back ow preventer - check local
codes. If a back ow preventer or no return valve is used, a thermal
expansion tank must be installed on the cold water supply between
the tank and valve. If the tank is replacing a tankless coil in the boiler,
disconnect coil plumbing and use the cold water inlet and hot water
outlet pipes for the boiler.
60 Gallon Storage Tanks: Use both thread tape and pipe dope to
connect a 1” NPT brass tee. In the run of the brass tee, install a 1” NPT
brass T&P long element for hot water heaters, as required by local
codes, but not less than a valve certied for meeting the requirements
for relief valves for water heaters (ANSI Z21.22 and CAN1-4.4) by
a nationally recognized lab that maintains periodic inspection of
production of listed equipment. The T&P valve must be plumbed
down, so discharge will exit at least 6” above the structural oor and
not contact any live electrical parts. In the bottom of the tee (branch)
vertically down, install a 1” NPT x 1” (minimum) tube adapter. Then
install two 1” (minimum) sweat street 90 degree elbows.
80 and 119 Gallon Storage Tanks: Use 1 1/2” NPT nominal pipe size. A
T&P port is included on 80 and 119 gallon tanks.
NOTE: For more information, see “Typical Installation”, page 8.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
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6
D. Temperature and Pressure Relief Valve
On all models, an appropriate temperature and pressure (T&P) valve
must be supplied and installed as detailed in the piping diagrams in
this installation manual.
Use both thread tape and pipe dope to install an NPT brass T&P relief
valve for hot water storage tanks, as required by local codes but not
less than valves certied as meeting the requirements for relief valves
for hot water heaters (ANSI Z21.22 and CAN 1-4.4) by a nationally
recognized lab that maintains periodic inspection of production listed
equipment. Make sure the relief valve is sized to the BTU/Hour capacity
of the boiler. The T&P valve must be plumbed down so discharge can
exit at least 6” above the structural oor. The relief line cannot be
in contact with any live electrical parts. If the relief valve constantly
weeps install an expansion tank. See expansion tank manufacturer’s
instructions for suggestions.
Do not thread a cap or plug into the relief valve or relief valve line
under any circumstances! Explosion and property damage, serious
injury, or death may result.
To avoid water damage or scalding due to relief valve operation:
• Discharge line must be connected to relief valve outlet and
run to a safe place of disposal. Terminate the discharge line
in a manner that will prevent possibility of severe burns or
property damage should the relief valve discharge.
• Discharge line must be as short as possible and the same
size as the valve discharge connection throughout its entire
length.
• Discharge line must pitch downward from the valve and
terminate at least 6” above the oor drain, making discharge
clearly visible.
• The discharge line shall terminate plain, not threaded, with
a material serviceable for temperatures of 375oF or greater.
• Do not pipe discharge to any location where freezing could
occur.
• No valve may be installed between the relief valve and
storage tank or in the discharge line. Do not plug or place any
obstruction in the discharge line.
• Test the operation of the relief valve after lling and
pressurizing the system by lifting the lever. Make sure the
valve discharges freely. If the valve fails to operate correctly,
immediately replace with a new properly rated relief valve.
• Test T&P valve at least once annually to ensure the waterway
is clear. If valve does not operate, turn the storage tank “o”
and call a plumber immediately.
• Take care whenever operating relief valve to avoid scalding
injury or property damage.
FAILURE TO COMPLY WITH THE ABOVE GUIDELINES COULD RESULT
IN FAILURE OF RELIEF VALVE OPERATION, RESULTING IN POSSIBILITY
OF SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY,
OR DEATH.
RE-INSPECTION OF T&P RELIEF VALVES: T&P valves should be
inspected AT LEAST ONCE EVERY THREE YEARS, and replaced
if necessary, by a licensed plumbing contractor or qualied
service technician to ensure that the product has not been aected
by corrosive water conditions and to ensure that the valve and
discharge line have not been altered or tampered with illegally.
Certain naturally occuring conditions may corrode the valve and
its components over time, rendering the valve inoperative. Such
conditions can only be detected if the valve and its components are
physically removed and inspected. Do not attempt to conduct an
inspection on your own. Contact your plumbing contractor for a
re-inspection to assure continued safety.
FAILURE TO RE-INSPECT THE T&P VALVE AS DIRECTED COULD
RESULT IN UNSAFE TEMPERATURE AND/OR PRESSURE BUILDUP WHICH CAN RESULT IN PROPERTY DAMAGE, SERIOUS
PERSONAL INJURY, OR DEATH.
E. Potable Expansion Tank
A potable hot water expansion tank may be required to oset heated
water expansion. If there is a back ow preventer or any other type
of no return or check valve in the system a thermal expansion tank IS
MANDATORY. The expansion tank must be sized for the entire water
volume of the hot water system. A weeping relief valve indicates the
need for an expansion tank. See the Typical Expansion Tank example
in the Piping section for details.
F. Scalding
A water heating
system can deliver
scalding water. Be
careful whenever
using hot water to
avoid scalding injury.
Certain appliances
such as dishwashers
and automatic
clothes washers may
require increased
water temperatures.
By setting the
thermostat to obtain
the increased water
temperature required
by these appliances
you may create the
potential for scald
injury.
To protect against
injury, install a mixing
valve in the water
system. This valve
will reduce point
of use discharge
temperatures by
mixing cold and hot
water in branch supply lines. Such valves are available from your
local plumbing supplier.
Table 3 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
120oF More than 5 minutes
125oF 1 1/2 to 2 minutes
130oF About 30 seconds
135oF About 10 seconds
140oF Less than 5 seconds
145oF Less than 3 seconds
150oF About 1 1/2 seconds
155oF About 1 second
Table 1 - Approximate Time / Temperature Relationships in Scalds
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 7
G. Applications
SSU-80CB / SSU-119CB
7
Figure 3 - Typical Storage Tank Installation - SSU-20CB - SSU-60CB Models
PIPING NOTES:
The following notes are applicable to all of the piping applications demonstrated on this page.
1. Check valves are optional. Circulators may have Internal Flow Checks (IFCs).
2. If a backow preventer or no return valve is installed a thermal expansion tank suitable for potable water must be sized and installed on the
cold water inlet between the storage tank and the backow preventer.
Part 4 - Control and Wiring
A. Control
A pre-wired surface mount thermostatic control is provided on your
storage tank. Temperature may be set by removing lower cover
screw and lower cover. has been provided for accurate temperature
adjustment.
B. Wiring
Wiring is to be done in accordance with all applicable local and state
codes. Turn o all power related to the water heating system before
starting any wiring procedures. It is recommended that a disconnect
switch be installed between the boiler control and the storage tank.
When wiring the controls be sure to label all wires to ease future
maintenance. Wiring errors can cause improper and dangerous
operation.
C. Wiring Diagram
Figure 5 - Wiring the Control
Figure 4 - Typical Storage Tank Installation - SSU-80CB and SSU-119CB
Models
Part 5 - Start-Up and Operation
1. Fill the storage tank by opening the cold water shut-o valve.
Make certain any drain valves are completely closed. Purge air from
the system by opening a hot water outlet at a xture in a kitchen or
bathroom. When water ows freely from the outlet, the system is
purged.
When lling the storage tank, open a hot water tap to release air in
the tank and piping to ensure proper storage tank operation. Failure
to ensure the storage tank is full before turning on the system could
result in damage to the water heating system and property damage.
Such damages ARE NOT covered by warranty.
2. Check the system for leaks.
Fix any leaks before continuing the installation. Failure to do so could
result in property damage or personal injury.
3. After ensuring there are no leaks within the system, ush the system
to clear any soldering residue. Many soldering uxes contain Zinc
Chloride, which can corrode stainless steel.
Draw at least three times the volume of the storage tank to properly
ush the system.
4. Initiate a call for hot water. Ensure each zone valve or circulator
operates only when its thermostat calls for heat. Purge each zone of air
to ensure proper operation.
5. Set the storage tank to the desired temperature. Boiler high limit
should be set at least 20oF higher than the storage tank temperature
setting. Set the low limit of the control at the minimum setting - this
will call the burner on only to satisfy the tank control.
A storage tank temperature setting of 120oF is recommended.
However, a lower temperature setting may be required to comply with
local and state codes for normal operation. Installation conditions
may require a higher or lower temperature setting. A mixing valve in
conjunction with a high temperature setting may be used for high
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 8
8
demand applications (spas, hot tubs, whirlpools).
6. When the system is completely ushed, purged of air, and the
temperature is set, turn on the water heating system. Observe
operation. Ensure the boiler shuts down after the storage tank set
point is satised.
Part 6 - Maintenance and Troubleshooting
Periodic maintenance should be performed by a qualied service
technician to ensure all equipment is operating safely and eciently.
The owner should make necessary arrangements with a qualied
heating contractor for periodic maintenance of the water heating
system. Installer must also inform the owner that the lack of proper
care and maintenance may result in hazardous conditions.
Annual Maintenance Activities Date Last Completed
System 1st Year 2nd Year 3rd Year 4th Year
Piping Check system piping for any sign of leakage; make sure pipes are properly
supported.
Visual Do a full visual inspection of all system components. Ensure all components
(water treatment systems, mixing valves, circulators, etc.) are operating
properly and have been maintained.
Functional Test all functions of the system. Perform any maintenance required by lo-
cal codes. Verify system pressure is in the safe operating range.
Temperatures *Verify safe settings on Mixing Valve (if installed in system).
Electrical
Smoke and CO
Detectors
Circuit Breakers Check to see that the circuit breaker is clearly labeled. Exercise circuit
Connections Check wire connections. Make sure they are tight.
Relief Valve and Drain Valve
Relief Valve Lift and release the relief valve on the storage tank. Make certain that the
Drain Valve Open the drain valve and drain a few quarts of water from the bottom of
Final Inspection
Checklist Verify that you have completed the entire checklist. WARNING: FAILURE TO
Homeowner Review what you have done with the homeowner.
Initial and Date after Inspection / Service. Continue Inspections Annually beyond the
Fourth Year.
Table 2 - Maintenance Activities Checklist - *If Applicable to System
*Verify devices are installed and working properly. Change batteries if necessary.
breaker.
valve operates properly by allowing several gallons to ush through the
discharge line. Replace if valve is blocked or does not operate properly.
NOTE: TAKE CAUTION WHEN OPERATING RELIEF VALVE. DISCHARGED
WATER MAY PRESENT A SCALD RISK.
the tank to ush any hard water deposits. Replace if valve is blocked or
does not operate properly.
NOTE: TAKE CAUTION WHEN OPERATING DRAIN VALVE. DRAINED WATER
MAY PRESENT A SCALD RISK.
DO SO COULD RESULT IN SERIOUS INJURY OR DEATH.
Figure 6 - Sealing the Storage Tank for Sanitary Applications
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 9
Troubleshooting
No Hot Water Not Enough Hot Water
Problem Possible Solution Problem Possible Solution
Zone valve not opening Open manually to replace Zone valve restriction 1” full bore replace zone valve
Circulator not operating Check or replace Circulator arrow reversed Reverse circulator
Tank control set too low Raise tank temperature* Tank temperature too low Raise tank temperature*
Control set too low Raise control temperature Boiler temperature too low Raise boiler temperature
Wiring incorrect Check wiring Boiler sized too small Check sizing chart
Tank control failure Replace control Tank sized too small Check sizing chart
Zone valve failure Replace valve Demand ow rate too high
Circulator failure Replace circulator Air trap in loop
Heat and tank come on together
Air trap in loop Purge air
Not enough space heat
Slow recovery Circulator head capacity too low
T&P Valve Discharges Hot Tubs, Spas, Multiple Showers, High Demand
Problem Possible Solution Problem Possible Solution
Tank temperature too high Lower tank temperature Pressure too low Check line pressure for restriction
Water expands when heated Install expansion tank Tank recovery slow Slow startup boiler. See chart
Water pressure too high
Table 3 - Troubleshooting - *See scald warning below.
Install pressure reducing
valve
Not enough hot water
Install mixing valve. Raise tank
temperature
Purge air
Install ow regulator
Check wiring or set indirect as
priority over heating
Draw tank down and lower ther-
mostat. Recheck.
Boiler sized too small.
Consult chart.
Boiler sized too small. See chart
Check ow rate. Compare to
chart
Demand too great. Check ow
rates and compare to chart.
Install mixing valve and/or ow
restricting valve and raise tank
and boiler temperature.*
9
The risk of scald injury increases as you increase water
temperature. Use a water tempering or mixing valve and extreme
caution when using hot water to avoid scald injury. Consult codes
for conformance. Failure to follow the instructions in this warning
statement could result in serious personal injury or death from
scalds.
If draining of the storage tank is necessary, open the T&P valve or
a hot water tap to prevent vacuum buildup in the tank and piping.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 10
10
Coil Booster Stainless Steel Storage Tank
Ten (10) Year Limited Warranty
For Residential and Commercial Use
HTP warrants each coil booster stainless steel storage tank to be free
from defects in materials and workmanship according to the following
terms, conditions, and time periods. UNLESS OTHERWISE NOTED
THESE WARRANTIES COMMENCE ON THE DATE OF INSTALLATION.
This limited warranty is only available to the original consumer
purchaser (hereinafter “Owner”) of the storage tank, and is non-
transferable.
COVERAGE
A. This warranty covers the storage tank assembly ONLY. The storage
tank assembly consists of a stainless steel storage tank, insulation,
and outer jacket.
B. Should a defect or malfunction result in a leakage of water from
the storage tank within the above-stated warranty periods due
to defective material or workmanship, malfunction, or failure to
comply with the above warranty, with such defect or malfunction
having been veried by an authorized HTP representative, HTP
will replace the defective or malfunctioning storage tank with
a replacement of the nearest comparable model available at
the time of replacement. The replacement storage tank will be
warranted for the unexpired portion of the applicable warranty
period of the original storage tank.
C. In the event of a leakage of water of a replacement storage
tank due to defective material or workmanship, malfunction, or
failure to comply with the above warranty, HTP reserves the right
to refund to the Owner the published wholesale price available at
the date of manufacture of the original storage tank.
D. If government regulations, industry certication, or similar
standards require the replacement storage tank to have features
not found in the defective storage tank, the Owner will be charged
the difference in price represented by those required features. If
the Owner pays the price difference for those required features
and/or to upgrade the size and/or other features available on
a new replacement storage tank, the Owner will also receive a
complete new limited warranty for that replacement storage
tank.
E. If at the time of a request for service the Owner cannot provide
a copy of the original sales receipt or the warranty registration,
the warranty period for the storage tank shall then end ten (10)
years from the date of manufacture of the storage tank and NOT
the date of installation of the storage tank.
F. This warranty extends only to storage tanks utilized in heating
applications that have been properly installed by qualied
professionals based upon the manufacturer’s installation
instructions.
G. It is expressly agreed between HTP and the Owner that repair,
replacement, or refund are the exclusive remedies of the Owner.
OWNER RESPONSIBILITIES
The Owner or Qualied Installer / Service Technician must:
1. Have a relief valve bearing the listing marks of the American
Society of Mechanical Engineers (ASME) installed with the storage
tank assembly in accordance with federal, state, and local codes.
2. Have a vacuum relief valve certied to ANSI Z21.22 - Relief
Valves for Hot Water Supply Systems - installed with the storage
tank assembly in accordance with federal, state, and local codes
and in installations prone to vacuum related damages.
3. Maintain the storage tank in accordance with the maintenance
procedure listed in the manufacturer’s provided instructions.
Preventive maintenance can help avoid any unnecessary
breakdown of the storage tank and keep it running at optimum
efciency.
4. Maintain all related system components in good operating
condition.
5. Use the storage tank in an open system, or in a closed system
with a properly sized and installed thermal expansion tank.
6. Use the storage tank at water pressures not exceeding the
working pressure shown on the rating plate.
7. Keep the storage tank free of damaging scale deposits.
8. Make provisions so if the storage tank or any component or
connection thereto should leak, the resulting ow of water will
not cause damage to the area in which it is installed.
WARRANTY EXCLUSIONS
This limited warranty will not cover:
1. Any storage tank purchased from an unauthorized dealer.
2. Any storage tank not installed by a qualied heating installer /
service technician, or installations that do not conform to ANSI,
CSA, and/or UL standards, as well as any applicable national or
local building codes.
3. Service trips to teach the Owner how to install, use, maintain,
or to bring the storage tank installation into compliance with
local building codes and regulations.
4. The workmanship of any installer. The manufacturer disclaims
and does not assume any liability of any nature caused by
improper installation, repair, or maintenance.
5. Electricity or fuel costs, or increased or unrealized savings for
same, for any reason whatsoever.
6. Any water damage arising, directly or indirectly, from any
defect in the storage tank or component part(s) or from its use.
7. Any incidental, consequential, special, or contingent damages
or expenses arising, directly or indirectly, from any defect in the
storage tank or the use of the storage tank.
8. Failure to locate the storage tank in an area where leakage
of the tank or water line connections and the relief valve will
not result in damage to the area adjacent to the storage tank
or lower oors of the structure, as well as failure to install the
storage tank in or with a properly sized drain pan routed to an
approved drainage location.
9. Any failed components of the system not manufactured by
HTP as part of the storage tank.
10. Storage tanks repaired or altered without the prior written
approval of HTP.
11. Damages, malfunctions, or failures resulting from improper
installation, or failure to install the storage tank in accordance
with applicable building codes/ordinances or good plumbing
and electrical trade practices; or failure to operate and maintain
the storage tank in accordance with the manufacturer’s provided
instructions.
12. Damages, malfunctions, or failures resulting from failure to
operate the storage tank at pressures not exceeding the working
pressure shown on the rating label.
13. Failure to operate the storage tank in an open system, or
in a closed system with a properly sized and installed thermal
expansion tank.
14. Failure or performance problems caused by improper sizing
of the storage tank, expansion device, or piping.
15. Damages, malfunctions, or failures resulting from vacuum
conditions.
16. Damages, malfunctions, or failures caused by operating the
storage tank with modied, altered, or unapproved components,
or any component / attachment not supplied by HTP.
17. Damages, malfunctions, or failures caused by abuse, accident,
re, ood, freeze, lightning, electrochemical reaction, acts of God
and the like.
18. Tank failures (leaks) caused by operating the storage tank in
a corrosive or contaminated atmosphere.
19. Failure of the tank due to the accumulation of solid materials
or lime deposits.
20. Any damage or failure resulting from improper water
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 11
11
chemistry. WATER CHEMISTRY REQUIREMENTS – Water pH
between 6.5 and 8.5. Hardness less than 12 grains (200 mg/L).
Chloride concentration less than 100 ppm (mg/L). TDS less than
500 ppm (mg/L).
21. Any damages, malfunctions, or failures resulting from the use
of dielectric unions.
22. Production of noise, taste, odors, discoloration, or rusty water.
23. Storage tanks replaced for cosmetic reasons.
24. Storage tanks that are not defective, but must be replaced
during the warranty period as a result of reasonable wear and
tear.
25. Damages, malfunctions, or failures resulting from the use of
any attachment(s) not supplied by HTP.
26. Storage tanks installed outside the fty states (and the District
of Columbia) of the United States of America and Canada.
27. Storage tanks moved from the original installation location.
28. Storage tanks that have had their rating labels removed.
PROCEDURES FOR WARRANTY SERVICE REQUESTS
Any claim for warranty assistance must be made immediately
upon nding the issue. First, please consult the HTP Warranty
Wizard (http://www.htproducts.com/Warranty-Wizard.html) to
check warranty eligibility. You may also contact HTP Technical
Support at 1-800-323-9651 for questions or assistance. Warranty
coverage requires review and approval of the issue with HTP
Technical Support or through the Warranty Wizard prior to a full
unit replacement. Any claim for warranty reimbursement will be
rejected if prior approval from HTP is not obtained in advance of
a full unit replacement. Final determination will be made as part
of the warranty claim process.
When submitting a warranty claim the following items are
required:
1. Proof of purchase or installation of the product – Typically
a copy of the invoice from the installing contractor, the receipt
of the purchase of the product, or an original certicate of
occupancy for a new home.
2. Clear pictures (or video) of the following:
a. Serial number tag (sticker)
b. The product
c. The product issue / failure whenever possible
d. A picture of the piping near the product
e. For gas red products, a picture of the venting, including
how it exits the building
All claims will be reviewed by HTP within three (3) business days.
If additional information is required and requested by the HTP
Claims Department you will have thirty (30) days to provide it.
When all requested information is provided HTP will respond
within three (3) business days. The claim will be automatically
closed if requested information is not provided within thirty
(30) days. Claims will not be reopened without HTP Warranty
Supervisor approval.
During the claims process a product that must be replaced will be
given a designation of either a) eld scrap, or b) return to HTP. If
the product must be returned to HTP, the returned product must
arrive at HTP within thirty (30) days of the date of our request
to return the product. After receipt of the returned product HTP
may require as many as thirty (30) additional days for product
testing. NOTE: Any components or heaters returned to HTP
for warranty analysis will become the property of HTP and
will not be returned, even if credit is denied.
If you have questions about the coverage of this warranty, please
contact HTP at the following address or phone number: HTP, 272
Duchaine Blvd., New Bedford, MA, 02745, Attention: Warranty
Service Department, 1(800) 323-9651.
SERVICE, LABOR, AND SHIPPING COSTS
Except when specically prohibited by the applicable state law, the
Owner, and not the Manufacturer, shall be liable for and shall pay for
all charges for labor or other expenses incurred in the removal, repair,
or replacement of the storage tank or any component part(s) claimed
to be defective or any expense incurred to remedy any defect in the
product. Such charges include, but are not necessarily limited to:
1. All freight, shipping, handling, and delivery costs of forwarding a
new storage tank or replacement part(s) to the owner.
2. All costs necessary or incidental in removing the defective
storage tank or component part(s) and installing a new storage
tank or replacement part(s).
3. All administrative fees incurred by the Owner, as well as material
required to complete, and/or permits required for, installation of a
new storage tank or replacement part(s), and
4. All costs necessary or incidental in returning the defective storage
tank heater or component part(s) to a location designated by the
manufacturer.
LIMITATIONS OF YOUR HTP WARRANTY AND REMEDIES
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND
ACCEPTED TO THE FURTHEST EXTENT UNDER APPLICABLE LAW IN
LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
AND ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN
CONTRACT OR TORT, WHETHER OR NOT ARISING FROM HTP’S
NEGLIGENCE, ACTUAL OR IMPUTED. THE REMEDIES OF THE OWNER
SHALL BE LIMITED TO THOSE PROVIDED HEREIN TO THE EXCLUSION
OF ANY OTHER REMEDIES INCLUDING WITHOUT LIMITATION,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SAID INCIDENTAL
AND CONSEQUENTIAL DAMAGES INCLUDING, BUT NOT LIMITED TO,
PROPERTY DAMAGE, LOST PROFIT OR DAMAGES ALLEGED TO HAVE
BEEN CAUSED BY ANY FAILURE OF HTP TO MEET ANY OBLIGATION
UNDER THIS AGREEMENT INCLUDING THE OBLIGATION TO REPAIR
AND REPLACE SET FORTH ABOVE. NO AGREEMENT VARYING OR
EXTENDING THE FOREGOING WARRANTIES, REMEDIES OR THIS
LIMITATION WILL BE BINDING UPON HTP. UNLESS IN WRITING
AND SIGNED BY A DULY AUTHORIZED OFFICER OF HTP. THE
WARRANTIES STATED HEREIN ARE NOT TRANSFERABLE AND
SHALL BE FOR THE BENEFIT OF THE OWNER ONLY.
NO OTHER WARRANTIES
This warranty gives the Owner specic legal rights. The Owner may
also have other rights that vary from state to state. Some states do
not allow the exclusion or limitation of incidental or consequential
damages so this limitation or exclusion may not apply to the Owner.
These are the only written warranties applicable to the storage tank
manufactured and sold by HTP. HTP neither assumes nor authorizes
anyone to assume for it any other obligation or liability in connection
with said storage tanks.
HTP reserves the right to change specications or discontinue
models without notice.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
Page 12
12
Customer Installation Record Form
The following form should be completed by the qualied installer / service technician for you to keep as a record of the installation in
case of a warranty claim. After reading the important notes at the bottom of the page, please also sign this document.
Customer’s Name
Date of Installation
Installation Address
Product Name / Serial Number(s)
Comments
Installer’s Code / Name
Installers Phone Number
Signed by Installer
Signed by Customer
IMPORTANT
Customer: Please only sign after the qualied installer / service technician has fully reviewed the installation, safety, proper operation, and
maintenance of the system. If the system has any problems please call the qualied installer / service technician. If you are unable to make
contact, please call your sales representative.
Distributor / Dealer: Please insert contact details.
lp-32 Rev. 003 Rel. 010 Date 2.22.19
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