Use and Care Manual
Installation
Start-Up
Maintenance
Everlast
Grid Enabled
Electric Water Heaters
Parts
Warranty
This water heater must only be installed 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-608 Rev. 000 Rel. 001 Date 3.15.18
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.
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 water heater. This includes all related control
information. It is important that this manual, all other documents
included in this system, and additional publications including the
Code for the Installation of Heat Producing Appliances (latest version), 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 water heater must be installed by qualied and licensed personnel.
The installer should be guided by the instructions furnished with the
water heater, and by local codes and utility company requirements.
Installations Must Comply With:
Local, state, provincial, and national codes, laws, regulations, and
ordinances.
The latest version of the National Electrical Code, NFPA No. 70.
For Your Records
Write the Product Model and Serial Numbers:
Model # ___________________________________________
Serial # ____________________________________________
These numbers are listed on the product ratings label.
Keep this manual and information for future reference.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances, basic safety precautions to
reduce the risk of re, electric shock, or injury to persons should
be followed, including:
1. READ ALL INSTRUCTIONS BEFORE USING THIS WATER HEATER.
2. This water heater must be grounded. See Part 4 – Wiring, this
manual, for grounding details.
3. Install or locate this water heater only in accordance with the
provided installation instructions.
4. Use this water heater only for its intended use as described in
this manual.
5. Do not operate this water heater if it has been damaged or
dropped.
8. This water heater should be serviced only by qualied service
personnel. Contact the water heater installer or a qualied service
agency for examination, repair, or adjustment.
SAVE THESE INSTRUCTIONS
Table of Contents
Part 1 - General Safety Information 2
A. When Servicing the Water Heating System 3
B. Heater Water 3
C. Freeze Protection 3
D. Water Temperature Adjustment 3
Part 2 - Prepare the Water Heater 4
A. What’s in the Box 4
B. Locating the Water Heater 4
C. Water Chemistry Requirements 5
Part 3 - Piping 8
A. Plumbing 8
B. Thermal Expansion 8
C. Condensation 8
D. Insulation Blankets 8
E. Temperature and Pressure Relief Valve 8
F. Scalding 9
G. Filling the Heater 9
H. Applications 10
Part 4 - Wiring 10
A. Communication 10
B. Enabling the Lower Element 10
C. Field Wiring Details 10
Part 5 - Installation Checklist 12
Part 6 - Operation 12
A. Combination Thermostat and High Limit Control (ECO) 12
B. Upper Thermostat Adjustment and ECO Reset 12
C. Lower Thermostat Adjustment 13
D. Heating Element Replacement Procedure 13
Part 7 - Maintenance 14
Part 8 - Troubleshooting 16
Part 9 - Replacement Parts 17
Limited Warranty 18
Customer Installation Record Form 20
Part 1 - General Safety Information
This water heater is approved for indoor installations only and is
not intended for use as a pool heater. Clearance to combustible
materials: 0” top, bottom, sides, and back. Heater must have room
for service: 24” front, 6” top, and 6” sides are minimum recommended
service clearances. (A combustible door or removable panel is
acceptable front clearance.) This water heater has been approved
for closet installation and installation on combustible ooring. Do
not install directly on carpeting. Install the water heater in a location
where temperature and pressure relief valve discharge or a leak will
lp-608 Rev. 000 Rel. 001 Date 3.15.18
3
not result in damage to the surrounding area. If such a location is
not available, install an auxiliary catch pan.
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 water heater serviced / inspected
annually by a qualied service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE
PERSONAL INJURY, OR DEATH.
NOTE: If the water heater is exposed to the following, do not
operate. Immediately call a qualied service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property damage,
severe personal injury, or death.
DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN
SUBMERGED IN WATER. Immediately call a qualied service
technician. The water heater MUST BE replaced if it has been
submerged. Operating a previously submerged water heater
could result in property damage, severe personal injury, or death.
NOTE: Water heater damage due to ood or submersion is
considered an Act of God, and IS NOT covered under product
warranty.
NOTE: Obey all local codes. Obtain all applicable permits before
installing the water heater.
NOTE: Install all system components and piping in such a manner
that does not reduce the performance of any re rated assembly.
Using this water heater for anything other than its intended
purpose (as described in this manual) will void product warranty
and could result in property damage or personal injury.
High heat sources (sources generating heat 100oF / 37oC or
greater, such as stove pipes, space heaters, etc.) may damage
plastic components of the water heater 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 water heater and related
components near high heat sources.
B. Heater 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
water heater, substantial property damage, and/or serious personal
injury may result.
C. Freeze Protection
NOTE: Consider piping and installation when determining heater
location. Failure of the water heater due to freeze related damage IS
NOT covered by product warranty.
NEVER use any toxic chemical, including automotive, standard
glycol antifreeze, or ethylene glycol made for hydronic (nonpotable) systems. These chemicals can attack gaskets and seals in
water systems, are poisonous if consumed, and can cause personal
injury or death.
D. Water Temperature Adjustment
The Hydro Plus water heater is grid enabled. Use the upper thermostat
control to adjust the water temperature up or down accordingly for
the application. Once adjusted, contact the System Technician so the
grid-based controller can be set to allow operation at the new set
point.
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.
If the water heater is going to have a set temperature above 120oF, it is
recommended to use an ASSE 1017 rated mixing valve to avoid severe
burns or death from scalding temperatures.
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
UNCRATING THE WATER HEATER - 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
Be sure to disconnect electrical power before performing service.
Failure to do so could result in electrical shock, property damage,
serious personal injury, or death.
NOTE: When inquiring about service or troubleshooting, reference
the model and serial numbers from the water heater rating label.
To avoid severe burns, allow water heater and associated equipment
to cool before servicing.
lp-608 Rev. 000 Rel. 001 Date 3.15.18
4
possible to read or view some product labeling. It is recommended
to make note of the water heater model and serial number.
NOTE: A combustible door or removable panel is acceptable front
clearance.
The service life of the water heater’s exposed metallic surfaces,
such as the junction box, is directly inuenced by proximity
to damp and salty marine environments. In such areas higher
concentration levels of chlorides from sea spray coupled with
relative humidity can lead to degradation of water heater
components.
Incorrect operating conditions can lead to damage to the heating
system and put safe operation at risk. Ensure that the installation
location adheres to the information included in this manual.
Failure to do so could result in property damage, serious personal
injury, or death. Failure of the water heater or components due
to incorrect operating conditions IS NOT covered by product
warranty.
B. Locating the Water Heater
Part 2 - Prepare the Water Heater
Remove all sides of the shipping crate to allow the heater to be moved
into its installation location.
COLD WEATHER HANDLING - If the water heater 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 water heater.
A. What’s in the Box
Components included with the water heater:
• Drain Valve
• Temperature and Pressure Relief Valve
• Hot Outlet Heat Trap
• Cold Water Inlet Fitting with Dip Tube
• Use and Care Manual and Warranty
NOTE: Some components may ship factory installed.
This water heater is certied for indoor use only. DO NOT INSTALL
OUTDOORS. Outdoor installations ARE NOT covered by warranty.
Failure to install the water heater indoors could result in property
damage, severe personal injury, or death.
This water heater must be installed upright in the vertical position as
described in this manual. DO NOT attempt to install this water heater
in any other orientation. Doing so will result in improper water
heater operation and property damage, and could result in serious
personal injury or death.
1. Installation Area (Mechanical Room) Operating Conditions
• Ensure ambient temperatures are higher than 32oF / 0oC and
lower than 104oF / 40oC
• Avoid continuously high levels of humidity
• Never close existing ventilation openings
NOTE: When installing in a zero clearance location, it may not be
lp-608 Rev. 000 Rel. 001 Date 3.15.18
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. The water heater should be located
near a oor drain or installed in a drain pan. Leakage damages ARE
NOT covered by warranty.
2. Choose a location for the water heater as centralized to the piping
and electrical system as possible. Also, locate the water heater and
domestic water piping where it will not be exposed to freezing
temperatures. All piping should be insulated. Additionally, place the
water heater so that the drain, controls, and inlets/outlets are easily
accessible.
3" MIN.
6" MIN.6" MIN.
24" MIN.
Figure 1 - Recommended Service Clearances - NOTE: Overhead View Not
Representative of All Models
LP-608-A
11/15/16
NOTE: To save on heating costs and improve energy eciency keep
the distance between the water heater and xtures to a minimum
to reduce heat loss from excess piping and keep friction loss at a
minimum. Ensure all water heater piping is properly insulated to
minimize heat loss.
5
NOTE: If you do not provide the minimum clearances shown in
Figure 1, it might not be possible to service the water heater without
removing it from the space.
NOTE: In the State of California, the water heater 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 water heaters of a capacity of greater than 52 gallons,
consult the local building jurisdiction for acceptable bracing
procedures.
3. Check area around water heater. Remove any combustible
materials, gasoline, and other ammable liquids.
This water heater must not be located near ammable liquids
such as gasoline, butane, liqueed propane, adhesives, solvents,
paint thinners, etc., as the controls of this water heater could
ignite these vapors and cause an explosion resulting in property
damage, severe personal injury, or death.
4. If the water heater is to replace an existing water heater, check for
and correct any existing system problems such as:
• System leaks
• Location that could cause the system and water heater to
freeze and leak
• Incorrectly-sized expansion tank
5. This water heater must be installed vertical on a level surface.
C. Water Chemistry Requirements
Chemical imbalance of the water supply may aect eciency and
cause severe damage to the appliance 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 appliance service life. Failure of an appliance 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 appliance 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.
• 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) (Residential Use water temperatures below 140oF)
• 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 appliance 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 appliance 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 appliance, 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 appliance service life, it is strongly recommended
to follow the maintenance procedures in this manual.
Failure of electric elements due to lime scale build-up on the heating
surface, low pH, or other imbalance IS NOT covered by the warranty.
lp-608 Rev. 000 Rel. 001 Date 3.15.18
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Figure 2 - Dimensional Drawing
Specications and Dimensions Water Temperature Ratings
Models
Storage
Capacity
A B C D E F
EVG080C2X045H 80 6 1/2” 69” 23 1/4” 60”
EVG100C2X045H 100
EVG115C2X045H 115 69” 60” 228
Table 2 - Specications and Dimensions - *** Refers to Electrical Specications - See Table 3 for Electrical Specications
7 1/4”
61”
27”
52”
8”
30 3/4”
Safety
Listing
27”
UL 174
Hot /
Cold
Inlets
3/4”
NPT
Shipping
Weight
(Lbs. Est.)
155
210
Models # Elements Available Wattage Voltage
Min.
Delivered
Temp.
110oF
(43.3 C)
Max.
Delivered
Temp.
170oF
(76.6 C)
Full Load Current in Amps
(Single Phase)
High
Temp.
Limit
190oF
(87.8 C)
C2X045H 2 4,500 240 19
C2X055H 2 5,500 240 23
Table 3 - Electrical Specications Including Corresponding Wattages / Voltages / Amperages - **** Refers to Model Type and Gallon Size - See Table 2
for Model Specications and Dimensions
lp-608 Rev. 000 Rel. 001 Date 3.15.18
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