SunEarth SolaRay Closed Loop System Install

SunEarth SolaRay Closed Loop System Install
SOLARAYAC
DOMESTIC SOLAR WATER
HEATER SYSTEM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
The SolaRay domestic solar water heating system has gone through an extensive design, technical and performance review by the Solar Rating & Certification Corporation (SRCC). The installation of your SolaRay
system is intended to be executed by properly licensed and experienced professional contractors in accordance
with SRCC Standard OG-300, “Operating Guidelines and Minimum Standards For Certifying”, and shall conform to applicable federal, state and local regulations, codes, ordinances and standards governing the installation of solar water heating systems.
The solar energy system described by this manual, when properly installed and maintained, meets the minimum standards established by the SRCC. This certification does not imply endorsement or warranty of this
product by the SRCC.
OG-300 system certification is granted to SunEarth by the SRCC. It may not be used for any commercial purpose without the prior written consent of SunEarth. SunEarth must approve any deviation from the materials
and methods described in this manual in writing.
SunEarth SolaRay solar water heating systems can be protected against freeze damage to temperatures as low
as -60°F (-51°C). This system should not be installed in any area that has experienced ambient air temperatures below -60°F. Use Table 4, Section 4 of this manual to determine the required concentration of propylene
glycol and distilled water to provide adequate freeze protection in your specific climate.
Dow Chemical “Dowfrost HD” propylene glycol heat transfer fluid shall be used in this system as the primary
freeze protection agent. Unauthorized fluid substitutions can result in a threat to health, welfare and safety
and may cause the system piping to freeze.
All component warranties, express or implied, are voided if uninhibited glycol, potable or distilled water are
substituted for the specified heat transfer fluid described in this manual, or if the heat transfer fluid is not
maintained in accordance with Dow Chemical’s specific instructions.
Freeze tolerance limits are based upon an assumed set of environmental conditions. Extended periods of cold
weather, including ambient air temperatures above the specified limit may cause freezing in exposed parts of
the system. It is the owner’s responsibility to protect the system in accordance with SunEarth’s instructions if
the ambient air temperature approaches the specified freeze tolerance limit.
TABLE OF CONTENTS
Installation Manual
1)
Introduction.......................................................................................3
2)
System Description and Operational Principle..............................3
3)
Installation Requirements - General...............................................5
4)
Installation Requirements - Specific...............................................6
5)
Start Up Procedures........................................................................21
6)
Two Modes of System Operation...................................................22
7)
Isolating the Major Components and Shut Down Procedures...23
8)
Summer Vacation Recommendations...........................................23
9)
Maintenance and Troubleshooting................................................24
10)
Solaray System Component Parts ................................................25
11)
Estimated Component Life.............................................................27
12)
Approved Primary Component Parts...........................................28
13)
Pump Sizing - Cast Iron Pumps.....................................................30
14)
Pump Sizing - Stainless & Bronze Pumps.....................................32
15)
System Model Numbers..................................................................34
16)
Solaray OG-300 Labels...................................................................35
17)
SunEarth Collector Warranty Statement.....................................36
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
!
DANGER!
WATER TEMPERATURE SETTING
Safety and energy conservation are factors to be considered when selecting the water
temperature setting of water heater’s thermostat. Water temperatures above 125°F
can cause severe burns or death from scalding. Be sure to read and follow the warnings
outlined on the label pictured below.
Time/Temperature Relationship in Scalds
Temperature
Time To Produce a Serious Burn
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
More than 5 minutes
1½ to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 1½ seconds
About 1 second
Table courtesy of Shriners Burn Institute
The chart shown above may be used as a guide
in determining the proper water temperature for your home.
! DANGER: Households with small children, disabled,
or elderly persons may require a 120°F or lower thermostat
setting to prevent contact with “HOT” water.
°
NOTICE: Mixing valves should be installed to reduce the
point of use water temperature by mixing hot and cold water
in branch water lines. Contact a licensed installer or the local
plumbing authority for further information.
R
T
The electrical element booster thermostat has
been factory set at 50°C (120°F) to reduce the
risk of scald injury. Adjusting the thermostat to a
higher setting is not recommended. Hotter water
increases the potential for Hot Water Scalds.
E SE
! DANGER: Burns from Hot Water and
Steam - Use extreme care when opening relief
valves, charging closed loop, and filling storage
tank.
T
R
Reset button
ESE
The temperature of the water in the water heater can be regulated by setting the temperature dial of the adjustable surface
mounted thermostat located behind the jacket access panel.
Thermostat
dial pointer
150°F
(66°C)
Thermostat
protective
cover
90°F
(32°C)
125°F (52°C)
TURN OFF
PO WER
BEFORE
SE RV ICING
This thermostat controls the
water heater’s heating element only. (A separate thermostat should be utilized in
monitoring the temperature
from the collector).
To comply with safety regulations the thermostat is
factory set at 120° F or less
where local codes require.
! DANGER: Hotter water increases the potential for Hot
Water SCALDS.
P.1
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
!
WARNING!
For your safety, the information in this manual must be followed to minimize the risk
of fire or explosion, electric shock, or to prevent property damage, personal injury, or loss
of life.
Be sure to read and understand the entire Installation, Operation and Maintenance
Manual before attempting to install or operate this water heater. It may save you time
and cost. Pay particular attention to the Safety Instructions. Failure to follow these
warnings could result in serious bodily injury or death. Should you have problems
understanding the instructions in this manual, or have any questions, STOP, and get
help from a qualified service technician, or the local utility.
FOR INSTALLATIONS IN THE STATE OF CALIFORNIA
California Law requires that residential water heaters must be braced, anchored or
strapped to resist falling or horizontal displacement due to earthquake motions. For
residential water heaters up to 52 gallon capacity, a brochure with generic earthquake
bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street,
Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater
dealer.
However, applicable local codes shall govern installation. For residential water heaters
of a capacity greater than 52 gallons, consult the local building jurisdiction for acceptable
bracing procedures.
SAFETY PRECAUTIONS
Have the installer show you the location of the circuit breaker and how to shut it off if
necessary. Turn off the circuit breaker if the water heater has been subjected to overheating,
fire, flood, physical damage or if the ECO fails to shut off.
Read this manual entirely before installing
or operating the water heater.
Use this appliance only for its intended
purpose as described in this Installation,
Operations and Maintenance Manual
Do not attempt to repair or replace any part
of your water heater unless it is specifically
recommended in this manual. All other
servicing should be referred to your installing contractor or local SunEarth Distributor.
Be sure your appliance is properly installed
in accordance with local codes and the
provided installation instructions.
READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.
SAVE THESE INSTRUCTIONS
P.2
PREFACE
Let us first offer two words of grateful appreciation.
Thank You! We sincerely appreciate your business.
SunEarth also wishes to say thank you for “going
solar”. Solar water heating systems help to reduce
our nation’s dependence on polluting fossil fuels,
minimize the greenhouse gas emissions associated
with conventional water heating and, very importantly, lower your monthly utility costs.
Established in 1978, SunEarth is a leading U.S.
solar equipment manufacturer. Our products include
industry standard EmpireTM and SunBeltTM solar
water heating collectors, CopperHeartTM integral
collector storage systems, SunSiphonTM packaged thermosiphon systems, SunBurstTM all copper
absorber plates, Solar StrutTM and Rex RackTM
mounting hardware. We also build specialty collectors for unique architectural and building applications. SunEarth SRCC OG-300 certified solar
water heating systems are sold by leading solar,
plumbing and building contractors throughout the
United States.
Your SolaRay solar water heating system has been
designed to meet exacting SRCC OG-300 certification requirements. The components found in your
system have been selected by your installation
contractor for their proven reliability, longevity and
performance in your specific region of the country.
SunEarth Inc. maintains a policy of continuous
review and improvement to ensure that Solaray
systems incorporate any appropriate technological
advances. To ensure that products represent the current state of the art in solar water heating Solaray
systems are subject to change without notice. Please
consult the SunEarth Inc. website at www.sunearthinc.com for current information and latest manual
revisions.
1) INTRODUCTION
Solar water heating systems are climate and site
specific appliances. Different types of solar systems are installed around the world in accordance
with regional weather and water quality conditions.
System performance varies as a function of the
household hot water load, including daily showers,
laundry and kitchen uses, average ground water and
ambient air temperatures, the home’s roof pitch and
orientation, and, of course, the seasonal intensity
of solar radiation. These variables, some of which
change from home to home on the same neighborhood street, will determine how much energy and
money your SolaRay system will save on an annual
basis.
Your SolaRay solar system is known as a “forced
circulation” system because it utilizes a mechanical pump to efficiently circulate the Dow Chemical
Dowfrost HD propylene glycol heat transfer fluid
(HTF) throughout the system. The HTF protects
the collector piping from freezing and inhibits scaling deposits that can reduce performance in “openloop” systems utilizing potable water as the HTF.
Proper application and maintenance of the HTF can
protect your Solaray solar water heating system to
minus 60° Fahrenheit.
This manual is intended as a basic solar water heating primer. Our goal is to familiarize you with the
proper installation, operation, and maintenance of
your SolaRay solar system. This system is required
to be installed by properly licensed solar or plumbing contractors in accordance with SRCC Standard
OG-300 and all applicable national, state and local
codes, ordinances and regulations governing solar
water heating installations, as well as good trade
practices. Failure to follow the procedures and practices described in this manual may void the manufacturer’s warranty for specific component parts.
This manual covers installations utilizing one or two
SunEarth solar collectors with a single solar storage
tank and also two tank systems that include a solar
storage tank and supplemental tank type or tankless
water heater. For simplicity, the singular form will
be used throughout this manual when referring to
all of these components and system permutations.
Frequent reference is made throughout this manual
to specific component parts. The placement of each
component can be seen in system schematic figures
15 and 16. A description of each component and its
function is found in Section 10.
2) SYSTEM DESCRIPTION AND
OPERATIONAL PRINCIPLE
The key components in the SolaRay solar water
heating system include the SunEarth solar collector,
solar storage tank with integral heat exchanger, circulation pump, differential temperature controller,
expansion tank, pressure gauge, mixing valve and
the non-toxic propylene glycol heat transfer fluid
(HTF).
P.3
fig. 1
COLLECTOR ORIENTATION
The SunEarth solar collector is the heart of the
SolaRay system. Simply stated, when the sun is
shinning, heat energy is absorbed by the solar collector’s all copper absorber plate and transferred
to the HTF circulating through the solar collector.
The system pump efficiently circulates this heated
fluid through the collector piping and integral tank
heat exchanger. The heat exchanger consists of a
120’ length of copper tubing wrapped around the
solar storage tank. As the HTF passes through the
heat exchanger the heat in the fluid is transferred by
conduction to the potable water in your solar storage
tank. As this process is continuously repeated during the average sunny day the temperature in your
solar storage tank rises.
The differential temperature controller is the brain
of the system. The controller uses temperature sensors to constantly monitor the temperatures at the
collector and at the tank. The controller automatically turns the pump on when useful heat is available at the collector and turns the pump off when
there is insufficient solar heat available or the tank
has reached maximum temperature.
Both single and double tank Solaray systems are
designed to provide two modes of operation. The
P.4
system will, (1) serve as a preheater to your solar
storage tank or back-up water heater, or (2) bypass
the solar collector and run 100% on utility energy
or conventional fuel. The installation of an optional
water heater time switch allows you to control both
the frequency and duration of supplemental electric
resistance water heating. Supplemental electric heat
may not be required for much of the year depending
upon your specific requirements, thus providing an
effective third mode of operation – 100% solar.
Section Six provides instructions for setting the
system for automatic operation in each of these two
modes.
The Dowfrost HD HTF protects your SolaRay solar
fig. 2
STAGGERED MOUNT
COLLECTOR SPACING
TABLE 1
LATITUDE
COLL. TILT
ROOF
PITCH
FLAT
5°
1/12
9°
2/12
14°
3/12
18°
4/12
23°
5/12
27°
6/12
30°
7/12
34°
8/12
37°
9/12
40°
10/12
43°
11/12
45°
12/12
25°N
30°N
35°N
40°N
35°
40°
45°
50°
A
B
A
B
A
B
A
B
29
96
33
113
37
145
41
145
25
83
29
93
33
113
37
132
22
74
26
82
30
77
34
110
17
66
22
72
26
82
30
92
14
61
18
66
22
74
26
82
10
58
14
60
18
66
22
72
7
58
11
58
15
61
19
66
4
58
8
58
13
58
17
62
0
58
5
58
9
58
13
58
0
58
3
58
7
58
11
58
0
58
0
58
4
58
8
58
0
58
0
58
2
58
6
58
0
58
0
58
0
58
4
58
DIMENSIONS A AND B ARE DESIGNATED IN INCHES
system against freezing. Dowfrost HD can provide
reliable freeze protection at temperatures as low as
minus 60° Fahrenheit if properly applied and maintained. Use of uninhibited propylene glycol, ethylene glycol, plain water or any mixture of these fluids
as the HTF in this system is strictly prohibited.
Propylene glycol can degrade over time. The process of degradation is accelerated in presence of
oxygen and/or heat. We strongly encourage you to
establish a preventative maintenance schedule with
your installation contractor. The HTF pH level must
be maintained between 8 and 10 in order to prevent
glycol oxidation and corrosion of the collector piping. SunEarth’s collector warranty specifically
excludes freeze damage for any reason and absorber
plate damage resulting from the oxidation of the
propylene glycol HTF.
45°N
55°
A
B
44
145
41
133
38
115
34
95
30
85
26
74
23
68
21
65
17
60
15
58
13
58
10
58
8
58 50°N
60°
A
B
48
145
44
141
41
118
38
98
34
87
30
77
27
70
25
66
22
62
19
58
17
58
14
58
13
58
and standards governing solar water heating system installations, and the contractor
shall adhere to sound building safety and
trade practices. Special consideration must
be given to building code requirements for
the penetration of structural members and fire
rated assemblies.
fig. 3
In order to completely protect the integrity of the
solar collector and piping, the system is designed to
be drained manually if subject to extended periods
of disuse or persistent hard freeze conditions below
minus 60° Fahrenheit. (See Sections 8.1 and 8.2)
3) INSTALLATION
REQUIREMENTS - GENERAL
3.1 The contractor shall obtain all required permits and approvals.
3.2 The installation shall conform to all federal,
state and local regulations, codes, ordinances
SIDE PITCH MOUNTING
P.5
P.5
REVERSE PITCH MOUNTING
fig. 4
3.3 The solar collector must be located in a structurally sound area of the roof that will be
unshaded for the majority of the day all year
round. Adjacent buildings and trees should
be checked for possible winter shading. An
instrument such as the Solar Pathfinder can be
used for solar site analysis. (Solar Pathfinder
can be reached at www.solarpathfinder.com)
3.4 Before the installation the contractor shall
inspect the condition of the roof and notify
the homeowner of any existing roof damage
or necessary repairs.
3.5 The homeowner and contractor shall confirm
the location of all roof and ground mounted
components in advance of the installation.
P.6
4) INSTALLATION
REQUIREMENTS - SPECIFIC
4.1 Collector Orientation
The performance of solar water heating systems in
the Northern Hemisphere is optimized when the collector is mounted facing True South. Performance,
however, suffers very little when the collector is oriented no more than 45° East or West of True South.
The collector should be unshaded by any permanent
obstacle between 9:00 a.m. and 3:00 p.m. on any
day of the year.
4.2 Collector Tilt
Optimal annual efficiency is achieved by tilting the
solar collector at an angle that equals your latitude
plus an additional 10°. This tilt angle favors the
lower winter sun when collector performance is at
SIDE VIEW
SunEarth EMPIRE SOLAR COLLECTOR
SunEarth EMPIRE SOLAR
COLLECTOR
INCLINED ROOF
SURFACE
MOUNTING
GROOVE
EMPIRE
MOUNTING
CLIP
SOLAR STRUT
ACCROSS FULL WIDTH
OF COLLECTOR(S)
3/8” ST STL BOLT
W/ LOCKWASHER
& FLATWASHER
APPROX 25% OF
COLLECTOR LENGTH
ST STL
SLIDING NUT
I - 5/8” X 4” SOLAR
STRUT MOUNTING
FOOT SET IN
ROOFING MASTIC
ST STL LAG BOLT
*LENGTH & DIA
VARY WITH
INSTALLATION
* DRILL PILOT HOLE
3/4 OF BOLT DIA
PITCH AND GRAVEL
ROOFING ON ROOFING
FELT OVER DECK
SHEATING ON THE ROOF
FRAMING SYSTEM
- BEAM OR RAFTER
SECTION A - A
SCALE
0.500
FOOT DETAIL
SCALE 0.500
STRUT ON FOOT MOUNT FOR
COMPOSITION ROOF
its lowest and minimizes overheating during the hottest summer months.
The solar collectors in a two collector staggered
mount installation must be spaced far enough apart
to prevent winter shading. Figure 2 and Table 1
show the correct spacing between collectors to prevent shading on December 21, when the sun is at its
lowest angle.
4.3 Basic Mounting Procedures
The SunEarth solar collector in your SolaRay
solar system may be mounted in either a vertical
or horizontal orientation on the roof (See Figure
1). Although the collector is protected from freeze
conditions by the glycol HTF and does not normally
need to be drained, it is still important to slope the
collectors just slightly to allow for complete drainage if necessary. The recommended slope is 1/4”
fig. 5
per foot of collector horizontal run.
To ensure proper water drainage from the glazing
the collectors should maintain a minimum angle
from horizontal of at least 10°. Never mount the
collector directly or parallel to a flat roof surface.
Use SunEarth Solar Strut tilt mount kits to rack the
collectors to the proper angle if and as required.
The collector should be mounted as close to the storage tank as possible to minimize heat loss in the piping runs. If the home has attic access, mounting the
collectors near the roof peak provides for additional
attic workspace.
The solar collector should be mounted on the roof in
accordance with these general principles:
4.3.1 The most important structural consideration
is to securely anchor the solar collector and the
SunEarth Solar Strut mounting hardware to the
P.7
1 1/2” MIN
STRUT ON HANGAR BOLT FOR
COMPOSITION SHINGLE ROOF
structural members of the roof with stainless steel
hanger bolts, lag bolts, standoff mounts or other
approved roof attachment method. The solar collector shall be attached to the mounting hardware
as detailed in Figures 5–11. (Note: The drawings
in this manual detail mounting hardware for the
SunEarth Empire series collectors).
4.3.2 The collector should be raised from the roof
surface to allow for rainwater and debris to pass
under the collectors and for proper ventilation of the
roofing material. There should be at least 1 1/2” of
clearance between the roof surface and the bottom
of the solar collectors. Local codes may require
greater clearance for snow shedding, etc.
4.3.3 In selecting mounting hardware and fasteners
it is extremely important to avoid galvanic corrosion
resulting from the direct contact of incompatible
metals. Use of SunEarth anodized aluminum Solar
Strut mounting hardware and stainless steel lag or
hanger bolts, lock washers and round washers is
P.8
fig. 6
recommended. In climates subject to severe winters or high humidity use of galvanized fasteners is
prohibited.
4.3.4 Preserving the integrity of the roof membrane
is the most important roofing consideration. Ensure
that all roof penetrations required to plumb and
mount the solar collector are properly flashed and
sealed in accordance with best roofing practices.
4.3.5 If the region is subject to hurricane conditions, additional steps may be required to secure
the collector and mounting hardware to the structural members. In certain areas of the country, local
building codes may require collector wind load
testing or prescribe specific mounting procedures.
Consult your local building department.
4.4 Collector Loop Pipe Insulation
The collector loop cold supply and hot return lines
shall be well insulated with a high quality flexible
closed cell insulation to minimize heat loss. The
STRUT ON HANGAR BOLT FOR
CURVED TILE ROOF
insulation shall have a maximum operating temperature of 220oF or higher. The wall thickness of
the pipe insulation should not be less than 3/4”. A
1” wall thickness is required in all areas prone to
annual hard freeze conditions. When it comes to
pipe insulation the rule is simple: thicker is better.
To the extent possible, slide the insulation material
over the pipe without cutting or taping. All butt
joints must be sealed with contact adhesive. The use
of rigid polyethylene pipe insulation is prohibited.
The temperatures generated by your collector in the
summer months or under stagnation conditions can
melt this type of material.
Any above ground exterior pipe insulation is subject
to UV degradation and must be jacketed, wrapped
with aluminum foil tape, or painted with two coats
of high quality water-based acrylic resin coating as
supplied by the insulation manufacturer.
fig. 7
4.5 Collector Plumbing
SunEarth requires the use of all copper and brass
fittings in the collector loop plumbing. Couplings
rather than unions should be used to join the collectors to avoid leaks and fluid loss. Lead-free solder
shall be used. Use of galvanized steel, CPVC, PVC,
PEX or any other type of plastic pipe is prohibited.
Piping in new solar installations can be covered with
dirt, grease, solder flux or other impurities that over
time affect the quality of the glycol HTF. A thorough
cleaning is required before charging the system with
glycol. Carefully review the cleaning procedures in
“Charging The System” outlined below.
All vertical piping between the storage tank and the
collector shall be supported at each story or at maximum intervals of ten feet (10’). Horizontal roof runs
shall be secured and supported providing at least
1-1/2 inches clearance from roof. Standard best piping practices shall be followed as described in the
P.9
1 1/2” MIN
STRUT ON HANGAR BOLT FOR
FLAT TILE ROOF
Uniform Plumbing Code, International Plumbing
Code or other recognized code or standard. Copper
plumbers tape or tube strap is required. The pipe
insulation should not be compressed or crimped by
the strapping material.
The installation of all horizontal and vertical piping
shall not reduce the performance or rating of any
structural member or fire rated assembly. Adhere to
all applicable local codes and ordinances.
4.6 Collector Sensor Placement
The collector sensor shall be located on the hot
water return line as close to the collector as possible.
Sensors are typically accurate to +/- 1/2°F if properly installed and weatherized. The collector probe
sensor shall be attached to the SunEarth collector
header pipe either with a stainless steel hose clamp
or by inserting the probe sensor into a thermalwell in
contact with the fluid near the outlet header pipe.
P.10
fig. 8
It is recommended that the connection between the
silicon sensor lead and low voltage sensor wiring be
made inside the attic or other indoor space or inside
a NEMA 4X junction box. When using wire nuts
to make the connection, the crimped brass cap on
the end of the sensor wire should be striped before
inserting into the wire nut. Where connections from
the sensor lead to the low voltage wiring is made
at an exposed location the connection should be by
crimp and heat shrink or solder and heat shrink butt
connections. Wire nuts or screw connectors should
not be used in exposed locations due to the likelihood of corrosion which will result in a compromised electrical connection.
Thoroughly wrap and weatherize the insulation with
electrician’s tape or insulation tape as provided by
the manufacturer. See Figure 12 for collector sensor
installation detail.
If an electrical potential exists between the roof and
ground, this may induce current to flow down the
FLUSH MOUNT ON FEET FOR
COMPOSITION ROOF
sensor wire to the controller. This current will result
in a false signal being received by the controller and
hence incorrect temperature readings. To prevent
such current the copper plate and piping should be
independently grounded. This will provide a separate path to ground from the roof which does not
interfere with the sensor readings.
Grounding can be achieved by running a separate
ground wire to the collectors or ensuring that the
copper pipe in the closed loop is grounded and there
are no electrical discontinuities between the grounding point and the collector. Grounding of the collector & roof piping is especially important in locations
that often experience electrical storms and electrical
atmospheric activity.
4.7 Low Voltage Wiring
The low voltage wiring used to connect the sensor
lead to the controller shall be a minimum18 AWG.
The wiring should be bare or tinned copper, two
conductor, stranded, PVC insulated, with a PVC UV
fig. 9
rated jacket suitable for exterior use. In locations
that often experience electrical storms and electrical atmospheric activity the low voltage sensor wire
should also be shielded and the shielding connected
to ground.
The low voltage sensor wire must not be in direct
contact with the copper pipe as the wire insulation
may melt when in contact with hot copper pipe.
Low voltage sensor wire must be run OUTSIDE the
pipe insulation, where the low voltage wire is run in
an exposed location, it should be run OUTSIDE the
pipe insulation but UNDER the insulation jacket or
wrap to protect the wire from UV exposure.
4.8 Installing the Solar Storage Tank and
Expansion Tank
In plumbing the solar storage tank and expansion
tank make sure that all the components are accessible and easy to reach. Provide for clear access
to the storage tank, pump, expansion tank, mixing
valve, time clock and other key components. If a
P.11
UNIVERSAL TILT MOUNT
(MAY BE USED FOR LANDSCAPE
OR PORTRAIT TILT MOUNT)
component in the potable water side of the system
may require future service or maintenance make the
connections with brass unions or other approved
connections. Use only brass nipples and unions and
copper and brass fittings in plumbing the solar storage tank and expansion tank. The use of galvanized
fittings or nipples, CPVC, PVC or other plastic pipe
is prohibited. Di-electric nipples may be required
by some (Authority Having Jurisdiction) AHJ on
the potable side.
Hard copper connections to the city cold water
supply line and the home hot water feed lines are
recommended. The gaskets in standard water heater
flex hose connectors can become brittle and compressed over time and begin leaking on the water
heater. If not detected in a timely manner even a
small drip or leak may cause serious damage to the
tank’s electrical components or, in extreme cases,
P.12
fig. 10
may cause the tank to leak from the outside in.
Tank plumbing is required to provide for the isolation of the solar storage tank from the city cold
water supply line by means of an isolating ball valve
(COMPONENT #23, FIGURES 15 & 16).
The differential temperature controller shall have a
screen readout to show temperatures of the collector and storage tank. Otherwise, line thermometers
shall be installed in the collector supply and return
lines to allow for a simple diagnostic check of proper system operation. On a sunny day the hot water
return line should be approximately 5 – 12° warmer
than the water in the collector supply line. Compare
the temperature readings in the two line thermometers (COMPONENT #3, FIGURES 15 & 16).
The circulation pump shall be the Grundfos model
UPS15-58FC, 115 volt, or approved equal. The
REX RACK
(FOR MULTIPLE COLLECTORS WITH PORTRAIT TILT)
fig. 11
pump shall be prewired with a 6’ line cord so that it
can be plugged directly into the 115 volt receptacle
on the bottom of the differential control. Two way
ball valves shall be installed on either side of the circulating pump (COMPONENT #12 & 14, FIGURES
15 & 16) so that the pump can be isolated from the
collector loop piping. Repairs or routine system
maintenance shall be completed without introducing
air into the system or draining the HTF.
The expansion tank shall have a minimum 150 PSIG
working pressure and have a total volume of not
less than 4.4 gallons. The standard factory charge
should be 12 PSIG. The expansion tank shall be
rated for non-potable water with a minimum charge
of 12 PSIG. The expansion tank shall be a Watts
Regulator FWS 18 or approved equal.
An additional potable expansion tank may be
required by the plumbing code on the potable piping to the solar tank if there is a backflow preventer
between the household piping and the street mains.
A high quality thermostatic mixing valve is a
required component in all OG-300 certified systems
and should be plumbed in line with brass union
connections for ease of future repair or replacement (COMPONENT #32, FIGURES 15 & 16).
The mixing valve shall be standard ASSE 1017
approved. The specified mixing valve shall be the
Heatguard Model HX110D, or equal and should
have an operating range between 95°F and 120°F.
The mixing valve shall be adjusted to no more than
122°F delivered water temperature.
The temperatures generated by your SolaRay system will vary throughout the year. In the Northern
P.13
Silicon Sensor Lead May Be
In Contact With Pipe
Hot Water
Return Line
Sensor Clamped to Collector
Header Pipe & Covered With
Insulation
Crimp Or Solder Connection
- Use Heat Shrink If In
Exposed Location
Sensor Wire Must NOT Be
Placed In Direct Contact
With Pipe
COLLECTOR SENSOR
Hemisphere the water temperature will be hottest in
the spring and summer months while cooler temperatures are to be expected from November through
March. On sunny days finished solar tank temperatures may range between 110ºF to 180ºF depending
upon the season and hot water demand. The mixing
valve described above blends the hot and cold water
supplies to deliver hot water to your fixtures at a
safe, controlled temperature.
WARNING: SCALDING CAN
OCCUR WITHIN FIVE SECONDS
WHEN WATER TEMPERATURES
APPROACH 140ºF. THE MIXING
VALVE SHALL BE ADJUSTED BY
YOUR CONTRACTOR TO
PROVIDE WATER TO YOUR
P.14
fig. 12
FIXTURES AT NO MORE THAN
122ºF.
The 3/4” cold water supply line to the solar storage
tank shall be insulated with minimum 7/8” X 1/2”
pipe insulation to a minimum distance of 5’ behind
the storage tank, or to the wall if closer than 5’.
4.9 Tank Sensor Placement
Figure 17 details the proper placement of the solar
storage tank sensor. Tank sensor shall have good
thermal contact with the tank wall in order to accurately measure the temperature of the water at the
bottom of the tank. It is recommended that the
sensor be installed in a brass or copper thermalwell
screwed into the lower sensor port in the tank.
Thoroughly weatherize the wire connections in
accordance with the roof sensor detail above.
4.10 Tank Insulation
SunEarth heat exchanger tanks have an insulation
value of approximately R-17.3.
Conventional back-up electric water heaters have
insulation values between R-12 and R-20. The R
value expresses the thermal resistance of the tank
insulation. The higher the “R-value” value the more
effective the insulation material is at preventing heat
loss.
rosion protection, the glycol inhibitor package is
designed for a minimum 25-30 percent concentration of glycol in water. Table 4 shows the concentrations of Dowfrost HD required to provide freeze
and burst protection at various temperatures. Use
the mixture most appropriate for your climate. Do
not use a higher glycol to water concentration than
necessary, as this will adversely impact the relative
heat transfer efficiency of the solution.
4.11 Electrical and Wiring Requirements
Generally, for an extended margin of protection,
you should select a temperature that is at least 5°F
lower than the expected lowest ambient temperature. These figures are examples only and should
not be regarded as specifications. As use conditions
are not within our control, neither SunEarth nor
Dow Chemical guarantees that freeze damage may
not occur at temperatures other than shown.
When electric element is used as the auxiliary heat
source a properly licensed contractor shall make the
230 volt electrical connection to the water heater or
solar storage tank and the optional electronic time
switch (COMPONENT #33, FIGURES 15 & 16). If
your solar contractor is not allowed by law to make
these connections consult a licensed electrician.
Water used to dilute the HTF must meet certain
minimum standards for purity. Impurities in the
dilution water can increase metal corrosion, reduce
the effectiveness of corrosion inhibitors, increase
inhibitor depletion rate, and cause the formation
of scale and other deposits on the heat exchanger’s
internal heat transfer surfaces.
Never activate the circuit breaker controlling the
electrical heating element until the solar storage
tank is completely filled with water. This will
prevent “dry firing” of the heating element. The
electrical heating element will be destroyed almost
instantaneously if not completely submerged in
water when activated. Make sure the water heater
circuit breaker is off until the solar storage tank is
completely filled.
Distilled or deionized water shall be used.
The storage tank should not be placed directly on an
uninsulated floor or concrete slab. In order to prevent moisture damage to the base of the tanks and
reduce heat loss to the floor slab, the tank should be
raised off the floor on a pad.
We recommend the use of a 115 volt differential
control with a factory installed six foot line cord.
The installation requires one 115 volt outlet to be
installed near the solar storage tank. Plug the control into the outlet. The circulation pump line cord
is plugged into the receptacle on the side of the
controller. A 230 volt control and circulation pump
may be substituted, but troubleshooting the components in the future becomes more difficult.
The specified differential temperature controller is
the SunEarth model SETR0301U (COMPONENT
#18, FIGURES 15 & 16), or approved equal
4.12 Heat Transfer Fluid (HTF)
The specified HTF is DowFrost HD, or approved
equal. To ensure maximum effectiveness for cor-
The HTF pH level must be maintained between 8
and 10 to minimize corrosion and glycol oxidation
in the piping system.
4.12.1 Flushing and Charging the System
Once the components are plumbed you are ready to
fill the solar storage tank with water and to charge
the collector loop with a mixture of heat transfer
fluid (HTF) and water. Due to variations in municipal water quality throughout the country, distilled or
deionized water shall be used to mix with the glycol
HTF. Proceed as follows:
4.12.2 STEP 1 - fill the solar tank with water and
check that there are no leaks on the potable side of
the system.
Do this by opening the cold water isolation ball valve
to the solar tank (COMPONENT #23, FIGURES 15
& 16) and opening a hot water outlet, such as a
faucet, until the water runs freely. When the tank is
filled, inspect all threaded fittings and solder joints
for leaks.
P.15
fig. 13
COLLECTOR PLUMBING - VERTICAL MOUNT
4.12.3 STEP 2 - thoroughly flush all impurities out
of the collector loop and check collector loop for
leaks.
Begin by connecting a washing machine type hose
to the upper charge valve (COMPONENT #9,
FIGURES 15 & 16) and fill the collector loop with
water. The isolation ball valve (COMPONENT #10,
FIGURES 15 & 16) remains closed at this point.
While the hose is still connected to the upper charge
valve and the water is running, open the lower
purge/drain valve (COMPONENT #11, FIGURES
15 & 16) and let the water run out until it is free of
impurities or debris that might have entered the piping as the components were plumbed. Water soluble
flux should be used when soldering pipe joints in the
collector loop in order to facilitate system flushing.
Run the water long enough to eliminate any air
bubbles that may be trapped in the system.
P.16
The non-potable expansion tank should not be connected to the collector loop during flushing to prevent debris from lodging inside the expansion tank
chamber.
Close the lower purge/drain valve. The collector
loop now has been subjected to city pressure. The
PRV is set to 125 PSI so it should not discharge
when subjected to city water pressure. Close the fill
valve and allow the pressure in the loop to stabilize,
if the city water pressure is higher than the PRV open
the purge valve slightly to allow the loop pressure to
drop to about 60 PSI. Once stabilized, the collector
loop pressure should remain fairly constant. A continuous drop in pressure is an indication of a leak in
the system. Make a final inspection of the collector
plumbing connections to ensure that there are no
leaks anywhere in the collector loop piping.
fig. 14
COLLECTOR PLUMBING - HORIZONTAL MOUNT
4.12.4 STEP 3 – run circulator pump to check pump
operation, good flow and air has been eliminated from
collector loop.
After you have determined the integrity of the entire
piping system, turn on the circulating pump. Do this
by setting the manual switch within the controller to
the “on” position. Run the pump for a full five minutes and carefully check to ensure there is proper fluid
flow and that all the air has been purged from the collector glycol loop. An inexpensive flow meter such
as manufactured by Blue White Industries or Letro is
recommended as an optional system component. A
flow meter allows you to monitor and adjust the flow
rate through the piping and also to visually inspect the
HTF fluid quality.
Set the controller to the “off” position and proceed to
the next step.
WARNING: THE NEXT STEP
MUST BE CARRIED OUT THE
SAME DAY. DO NOT LEAVE THE
COLLECTOR LOOP FILLED WITH
WATER OVER NIGHT OR YOU
RISK FREEZING THE LOOP AND
BURSTING THE PIPES.
4.12.5 STEP 4 – replace water in the collector loop
with glycol HTF mixture.
First mix the propylene glycol HTF and distilled
water mixture in accordance with Table 4 and Table 5
in a large clean bucket. You will need a second empty
bucket as well. The charging process will require a
high head pressure pump capable of producing 50 PSI
(115 ft head) pressure to charge the system.
P.17
fig. 15
SINGLE TANK SYSTEM SCHEMATIC
Connect the discharge side of the charging pump
to the upper charge faucet (COMPONENT #9,
FIGURES 15 & 16). Place the pump suction side
hose in the empty bucket. Close the isolation ball
valve (COMPONENT #10, FIGURES 15 & 16)
and connect a second hose to the lower charge
faucet (COMPONENT #11, FIGURES 15 & 16).
Place the other end of the second hose in the empty
bucket.
P.18
Open the upper charge faucet and allow the pressure
from the expansion tank to push the water in the
glycol loop back to prime the pressure pump. When
the hose in the bucket containing the glycol mixture
stops bubbling close the charge valve and transfer
the hose from the empty bucket to the bucket filled
with HTF mixture. Now, you are ready to begin
charging the collector loop with glycol.
fig. 16
DOUBLE TANK SYSTEM SCHEMATIC
With both fill and purge valves now open, run
the charge pressure pump until the pinkish glycol
mixture begins flowing into the empty bucket.
Once you see this, quickly switch the hose from
the empty/return bucket to the bucket containing
the glycol mixture. Continue to circulate the fluid
through the collector loop and bucket using the pressure pump until the bubbling has stopped and the air
has been purged.
While the charge pump is circulating the HTF fluid
through the collector loop, briefly open the valve on
the expansion tank leg in order to flush out the water
in this leg and replace with glycol HTF fluid.
4.12.6 STEP 5 - pressurize the collector loop to
required pressure.
After charging the collector loop, shut the lower
charge faucet and let the pressure pump drive up
P.19
Installation Manual
fig. 17
TANK SENSOR
the loop pressure to the appropriate level (Generally
in the range of 30 – 40 PSI). To more accurately
calculate the minimum pressure required in the loop,
measure the height of the solar collector above the
solar storage tank, divide this number by 2.31, then
add 20 PSI to this number. As a word of caution,
the pressure in the glycol loop should not exceed
the setting of the PR valve when the system is
operational on a good sunny day. Contact your solar
contractor if the charged collector loop pressure
exceeds this threshold.
Table 4
Your SolaRay solar water heating system must
be charged and the fluid quality maintained by an
experienced contractor. If the system is drained
during the winter, or you notice a significant drop
Percent (volume) Glycol Concentration Required
Temperature F
For Freeze Protection
For Burst Protection
20
18%
12%
10
29
20
Table 5
0
36
24
Total Collector Loop Fluid Capacity In Gallons*
-10
42
28
-20
46
30
1 Collector System
4 Gallon
-30
50
33
-40
54
35
2 Collector System
5 Gallons
-50
57
35
-60
60
35
P.20
* Assumes a total 100’ pipe run using 3/4” Type M
hard copper tubing. The SunEarth, Rheem or Ruud
heat exchanger has a 2.2 gallon fluid capacity.
fig. 18
COLLECTOR SENSOR
(HOTTEST POINT)
SUNEARTH
SOLAR COLLECTOR
DIFFERENTIAL
TEMPERATURE
CONTROLLER
OPTIONAL TIME SWITCH
CIRCUIT
BREAKER BOX
120V HOUSE
CURRENT
THERMOSTAT
AND RESET BUTTON
4500 WATT 240V
HEATING ELEMENT
TANK SENSOR AND WELL
ELECTRICAL COMPONENTS
in collector loop pressure, contact your installation
contractor immediately for service. The glycol HTF
provides the freeze protection for your system and
must be properly maintained. An experienced contractor should (define) periodically check the HTF
fluid quality.
5) SYSTEM START-UP
PROCEDURES
Throughout the installation procedures outlined in
Section 4 above, emphasis has been placed on the
correct procedures for plumbing and wiring the
components, checking for plumbing leaks, pressurizing the collector loop and eliminating any trapped
air that can impact fluid quality and pump perfor-
mance. Having completed these tasks it is time to
start up your SolaRay solar water heating system.
When the glycol loop has been fully charged and
the pressure is around 35 psi (check the pressure
gauge, (COMPONENT #7, FIGURES 15 & 16),
set the differential controller to the “Automatic”
setting. This will activate your circulating pump
when the temperature differential between collector
and tank is sufficient to provide useful heat. The
SunEarth controller will switch the pump on when
the differential is 16oF. The controller will switch
the pump back off when the differential falls to 8oF.
The controller also allows you to limit the finished
solar storage tank temperature if desired.
P.21
Installation Manual
SOLAR PREHEAT
The SunEarth controller maximum tank default
setting is 140oF; this setting can be adjusted as
described in the control manual.
Adjust the valve settings in accordance with Section
6 below.
6) TWO MODES OF SYSTEM
OPERATION
Both single and double tank Solaray systems are
designed to accommodate two separate modes of
operation. Your solar water heating system can, (1)
serve as a pre-heater to your conventional water
heater adding solar energy when and as available,
or (2) completely bypass the solar collector loop and
solar storage tank and run 100% on utility energy
during inclement weather.
SINGLE TANK SYSTEM MODES
OF OPERATION
6.1 Solar Preheat
Set the tank thermostat to the lowest acceptable temperature setting. The electric resistance heating elements will come on only when the tank temperature
falls below the thermostatic set point. If the solar
heated water entering the tank is warmer than the
thermostatic set point, the electric heating elements
will not come on. If your system has an optional
time switch, you may preset the timer to turn
the heating element on and off at specified times
throughout the day if desired. The timer is usually
set to only allow the element to come on in the late
afternoon and night after the solar collectors are no
longer able to provide significant heat. The time
switch also can be overridden so that you operate on
100% solar power when conditions allow.
P.22
fig. 19b
6.2 100% Utility Power
Leave the circuit breaker to your solar storage tank
on and close the isolation ball valves in the collector loop (COMPONENT #5 & 10, FIGURES 15 &
16). In this mode of operation you must turn off the
circulation pump. To turn the pump off, change the
operational setting from automatic to “off”. Failure
to turn off the pump can quickly damage the pump
motor, shaft, bearings or impeller.
TWO TANK SYSTEM
INSTRUCTIONS
6.3 Solar Preheat
Follow the instructions for the single tank system
for setting the thermostat and the heating elements
for automatic operation. The three way valve
above the solar storage tank (COMPONENT #24,
FIGURES 15 & 16) must be in the vertical position.
Each valve handle (COMPONENT #24, 25 & 26
FIGURES 15 & 16) must be placed in the horizontal
position. See Figure 19b, Solar Preheat.
6.4 100% Utility Power
Follow the instructions for the single tank system
above. All three ball valves above the heaters
(COMPONENT #24, 25 & 26 FIGURES 15 & 16)
must have the valve handles placed in the horizontal
position. See Figures 19c 100% Utility Power and
19d.
7) ISOLATING THE MAJOR
COMPONENTS AND SYSTEM
SHUT DOWN PROCEDURES
Your SolaRay solar water heating system is designed
so that the key components can be easily isolated
for emergency repairs or routine maintenance. By
shutting a single valve you can isolate the entire
system from the pressurized cold water supply line
(COMPONENT #23, FIGURES 15 & 16). In the
case of a storage tank or fitting leak immediately
shut this valve and call your installation contractor
for service.
The collector loop can be isolated from the solar
storage tank by closing isolation ball valves
(COMPONENT #10 & 5 FIGURES 15 & 16.) If
the pressure in this loop drops or you find a glycol
leak shut these valves and contact your installation
contractor. Turn the circulating pump off by setting
the controller to the “off” position.
In two tank systems the solar storage tank can be
isolated from the back-up water heater.
Set the valve handle on the three way ball valve
(COMPONENT #24, FIGURES 15 & 16) to the
horizontal position and close the isolation ball valve
(COMPONENT #25, FIGURES 15 & 16). By closing these two valves the tank can be serviced or
replaced. The operation of the back-up water heater
will not be effected.
The back-up water heater in two tank systems also
can be isolated from the rest of the system. Close
the cold water supply line ball valve (COMPONENT
#23, FIGURES 15 & 16) and set the three way
valve handle above the conventional water heater
(COMPONENT #26, FIGURES 15 & 16) to the
vertical position. Set the two way ball valve handle
(COMPONENT #30, FIGURES 15 & 16) directly
above the heater to the horizontal position.
8) SUMMER VACATION
RECOMMENDATIONS AND
PROCEDURES
Solar water heating systems can build up very high
temperatures when there is no daily draw on the
system. If a short summer vacation is planned, the
SunEarth differential temperature controller has a
Vacation Function which, when activated, will dissipate heat at night See control manual. Remember
to de-activate this function upon your return!
During extended summer vacations (4 weeks or
more) it is advisable to either cover the solar collectors with an opaque material or to manually drain
the collector loop HTF. SunEarth recommends that
you cover the collectors if practical.
If you choose to drain the HTF in the collector loop
follow these steps:
8.1 Turn the controller to the “off” position Fig.16
(COMPONENT #18, FIGURES 15 & 16).
8.2 Connect one end of a garden hose to the purge/
drain valve (COMPONENT #11 FIGURES 15 &
16) and place the other end in a five gallon bucket.
Open both the purge/drain valve and the upper fill
valve and gravity will drain the heat transfer fluid
into the bucket. If the HTF is being disposed of, a
licensed recycler, reclaimer or incinerator must dispose of the Dowfrost HD.
WARNING: DO NOT DUMP
DOWFROST HD INTO A STORM
SEWER, ON THE GROUND OR
INTO ANY BODY OF WATER. BE
CAREFUL. THE HTF MAY BE
EXTREMELY HOT!
8.3 If the system is installed with an optional time
clock make sure the clock is not preset to go “ON”
during your absence. If you have a mechanical time
100% UTILITY POWER
fig. 19c
P.23
switch, remove the “on” tripper from the clock face
(COMPONENT #33, FIGURES 15& 16).
When you return home contact your service contractor to recharge the system with HTF. After the
system has been recharged, set the controller to
the “automatic” position. Reset the time switch if
necessary.
9) MAINTENANCE AND
TROUBLESHOOTING
The following simple procedures are intended to
optimize the performance of your SolaRay solar
water heating system and also to extend the life of
the primary components.
9.1 Fluid Quality: It is extremely important to
monitor the quality of the Dowfrost HD HTF on
a periodic basis. The chemical composition of the
heat transfer fluid may change over time. System pH
must be maintained between 8 and 10 to avoid damage to the collector loop and absorber plate piping.
The specified glycol HTF is Dow Chemical
“Dowfrost HD”. Technical and engineering data
for Dowfrost HD is available at www.Dow.com.
Ask your installation contractor to establish a maintenance schedule to inspect, balance or replace the
glycol HTF as needed.
Installation Manual
9.2 The second most important component in your
system, at least from a longevity standpoint, is often
ignored and never seen. We are referring to the
sacrificial “anode rod” installed in your solar storage tank (COMPONENT #20, FIGURES 15 & 16).
Typically constructed from magnesium, anode rods
are installed in “glass lined” water heaters and storage tanks to inhibit corrosion.
As the name implies, the “sacrificial” anode rod is
consumed so that the tank lining is not. At a certain point in the process, the anode rod is no longer
completely effective and the corrosive processes
begin to eat away at the tank’s glass lining. In time
the solar storage tank, like any other gas or electric
water heater, will begin to leak. The process is not
reversible and the tank must be replaced.
System temperatures and water quality affect the
rate at which the anode rod is consumed. In general,
the higher the average system temperature the faster
the rate of corrosion. By changing the anode rod
after the fifth year of system operation, and every
three to five years thereafter, it is possible to extend
the life of the solar storage tank. Periodic replacement of the anode rod in your solar storage tank can
significantly extend the tank life.
9.3 The solar storage tank also should be flushed
annually to minimize sediment build-up on the bottom of the tank. If you live in an area with high
mineral content in your water, flush the tank on a
VALVE POSITION DIAGRAM
2-TANK SYSTEM
P.24
fig. 19d
semi-annual basis. Disconnect the power to the
solar tank at the circuit breaker or time switch (if
present) before flushing. Turn the controller to the
off position.
Open the flush valve on the bottom of the storage
tank (COMPONENT #15, FIGURES 15 & 16) and
drain a sufficient volume of water to eliminate the
sediment. After the procedure is complete make
sure the tank is completely full of water before
restoring power to the thermostat and heating element. Turn the controller to the “on” position.
9.4 If you live in a dusty climate it is a good idea
to wash off the dirt that settles on the collector glass
once a month. Clean glass allows the collector to
maintain a high level of thermal performance.
9.5 Check the exterior pipe insulation annually and
patch or repair any exposed surfaces or degraded
areas. Repaint as necessary with high quality exterior latex paint.
9.6 In the unusual instance of collector glass breakage, the glass should be replaced immediately. This
will reduce the likelihood of water accumulating
inside the collector and deteriorating the insulation.
Contact your installation contractor.
9.7 If you detect a HTF or water leak, or the collector loop pressure drops unexpectedly, contact your
installation contractor immediately to diagnose the
problem and recharge the system.
9.8 If it’s been a sunny day and you don’t have hot
water, first make sure that the controller is set in
the automatic position. If the controller is properly
set and the pump has not been running, unplug the
line cord from the controller receptacle and plug the
pump directly into a nearby 115 volt outlet. If the
pump does not run it may need to be replaced. If the
pump does run when plugged directly into the wall
outlet, the problem may be located in the controller
or one of the temperature sensors. Contact your
installation contractor for service.
9.9 If you have a full tank of hot water before bed
and the solar storage tank is cold in the morning,
the check valve (COMPONENT #4, FIGURES
15 & 16) may not be seating correctly and should
be cleaned or replaced. Also make sure that the
circulating pump is not running at night. If the
pump is running and the controller displays questionable temperatures at the collector or tank (ie.
180oF tank and 45oF collector), check both sensors
using a resistance meter to see if they are correctly
calibrated. If you find a defective sensor replace it
immediately.
Note that in a two tank system nighttime heat loss
will be harder to detect, especially if you are operating in the solar preheat mode. Check the line thermometers (if installed) in the collector loop piping
to detect night thermosiphoning.
9.10 If the weather is poor and the auxiliary heating
element will not fire, the bright red reset button on
the thermostat may have to be depressed to be reset.
Single tank systems have one heating element and
thermostat. Double tank systems with conventional
electric water heaters have two heating elements and
thermostats (COMPONENT #29, FIGURE 16).
DANGER: NEVER REMOVE
THE PROTECTIVE ACCESS
PLATE ON THE EXTERIOR OF
THE SOLAR STORAGE TANK OR
CONVENTIONAL WATER
HEATER WITHOUT
DISCONNECTING THE 230 VOLT
POWER SUPPLY AT THE
CIRCUIT BREAKER.
After the circuit breaker has been turned off, remove
the access plate on the storage tank or water heater
and depress the red reset button on the thermostat.
If it clicks when depressed the heating element
should fire immediately when you reconnect the
circuit breaker. It the reset button does not click and
you do not have hot water after one hour, the heating
element or thermostat may be defective. Contact
your installation contractor for service.
In two tank systems the conventional electric water
heater will be wired for electrical back-up. The solar
tank will serve solely as a storage tank and will not
be wired.
10) SOLARAY SYSTEM
COMPONENT PARTS
See Figures 15 and 16 for the location of the specific
components numbered below.
1) SunEarth Solar Collector(s): Absorbs the sun’s
heat energy and transfers this heat to the HTF circulating through the collector.
P.25
2) Collector Sensor: Wired to the system controller.
Works in conjunction with the tank sensor to automatically turn your circulating pump on and off at
preset temperature differentials.
3) Optional Tank and Line Thermometers: Used to
determine proper system operation. Line thermometers will show an approximate 5 - 12° temperature
difference between the collector supply and return
lines on sunny days. In a single tank system the tank
thermometer will read the temperature of the water
after the mixing valve feeding your fixtures. In two
tank systems the thermometer will read the finished
solar tank temperature.
4) Check Valve: This valve is installed to stop or
minimize convective evening heat loss in the system. The heat in the solar storage tank will rise
through the collector loop piping in the evening into
the much cooler solar collector and dissipate heat
unless prevented from doing so by a check valve.
Check valves are also sometimes referred to as one
way valves or non-return valves. A separate check
valve is not required if there is an integral check
valve within the pump.
5) Isolation Ball Valve: Used in conjunction with
component No. 10 to isolate the solar collector loop
from the solar storage tank.
6) Pressure Relief Valve: Will release glycol loop
HTF at 125 PSI. If this valve opens and HTF fluid is
expelled contact your contractor immediately. This
valve also can be opened to drain the HTF from the
charged glycol loop for replacement.
7) Pressure Gauge: Indicates the pressure in the
charged glycol collector loop.
8) Expansion Tank: Pre-charged with air to allow
for the expansion and contraction of the glycol HTF
as it heats and cools.
9) Charge Valve: Used to charge the collector loop
with glycol and also to eliminate air from the system.
10) Isolation Ball Valve: Used in conjunction with
component No. 5 to isolate the solar collector loop
from the solar storage tank. Also used with the
charge valves to fill and pressurize the collector
glycol loop (Nos. 9 and 11).
11) Drain/Purge Valve: Used to charge the collector
loop with glycol, purge air from the loop and drain
the heat exchange fluid.
P.26
Installation Manual
12) Isolation Ball Valve: When closed in conjunction with No. 14 will isolate the circulation pump for
repair or replacement.
13) Circulating Pump: Circulates the HTF through
the collector loop.
14) Isolation Ball Valve: When closed in conjunction with No. 12 will isolate the circulation pump for
repair or replacement.
15) Flush Valve: Used to drain the solar storage tank
and to flush sediment from the tank on an annual
basis.
16) Tank Sensor: Wired to your controller. Works
in conjunction with the collector sensor to turn your
circulating pump on and off at preset temperature
differentials.
17) Cold Water Dip Tube: Forces incoming city
cold water to the bottom of the solar storage tank
to prevent mixing with the warm water at the top of
the tank.
18) Differential Temperature Controller:
Automatically turns the circulating pump on and
off when there is sufficient heat to be gained from
the solar operation. The controller also may be set
to limit high temperature build up in the solar storage tank.
19) Heat Exchanger: Transfers heat from the solar
collector loop to the potable water in the solar storage tank. The heat exchanger is double walled and
vented. If a leak in the heat exchanger piping occurs
there is no possibility that the potable water in your
solar storage tank can be contaminated with the
glycol HTF.
20) Anode Rod: The “sacrificial” anode rod is
installed in your solar storage tank to prevent corrosion to the tank lining by neutralizing aggressive
water action. Anode rods have a finite life and
require periodic replacement depending on annual
tank temperatures and water quality. Determine a
replacement schedule with your installation contractor.
21) Heating Element & Tank Thermostat: The
solar storage tank is equipped with an auxiliary
4500 watt, 230 volt electrical heating element. The
thermostat controls the temperature setting of the
auxiliary heating element.
22) Temperature and Pressure Relief Valve:
Universally required by the plumbing code on water
heaters. Will automatically release and dump water
at either 150 PSI of pressure or 210° F in temperature.
23) Cold Water Supply Line Isolation Ball Valve:
When open allows potable water to fill the solar
storage tank or back-up water heater. When closed
isolates the solar storage tank and back-up water
heater from the pressurized city cold water supply
line.
24) Three Way Ball Valve: Used in conjunction
with component No. 26 to establish the proper mode
of system operation.
25) Isolation Ball Valve: Used in conjunction with
component No. 24 to completely isolate the solar
storage tank for repair or replacement as necessary.
26) Three Way Ball Valve: Used in conjunction
with component No. 24 to establish the proper mode
of system operation.
27) Cold Water Dip Tube: See No.16 above.
28) Anode Rod: See No. 18 above.
29) Heating Elements and Thermostats: See No.
19 above. In a two tank system the back-up electric water heater has two heating elements and two
thermostats.
30) Temperature and Pressure Relief Valve: See No.
22 above.
system by adhering to the routine service and maintenance tips provided above.
The SunEarth solar collectors have a design life
of 25 to 30 years. The HTF must be maintained as
specified in this manual to maximize collector life.
The solar storage tank should last 10 to 20 years in
most water quality areas provided the anode rod is
periodically replaced. Grundfos wet rotor 115 VAC
circulator pumps should last 8 to 15 year before
needing replacement. Like EPA mileage estimates
for automobiles, these component design lives
represent average figures for closed loop forced circulation systems of this type installed in the United
States.
To obtain warranty service contact your installation
contractor or call SunEarth Inc. for the name of an
authorized service agent near you.
Propylene Glycol Maintenance Schedule
Date Of Installation:
Date Of Service:
Date Of Service:
Date Of Service:
Date Of Service:
31) Optional Isolation Ball Valve. Use with component No. 26 to completely isolate the back-up water
heater for repair or replacement.
32) Mixing Valve: Automatically blends hot water
from the solar storage tank with incoming city cold
water to an acceptable set point. A mixing valve
must be installed on every SolaRay solar water heating system.
33) Optional Time Switch: Allows you to automatically or manually turn the auxiliary heating element
in the solar storage tank on and off. A time switch
is a highly recommended option.
11) ESTIMATED
COMPONENT LIFE
You can expect a long useful life from the primary
components in your SolaRay solar water heating
P.27
Section 12
SunEarth Inc.
Solaray AC OG-300 System Certification
Approved Primary Components Package
1. SunEarth Empire or SunBelt Liquid Flat Plate Collectors
Models: EP-21, EP-24, EP-32, EP-40, EC-21, EC-24, EC-32, EC-40
2. SunEarth Solar Strut or RexRack Mounting Hardware
Per SunEarth Manuals, Standard Residential Drawings, and/or Plan Sets
3. SunEarth, Rheem, or Ruud Solar Storage Tanks with Double Wall Heat
Exchanger and Auxiliary 4,500 Watt Heating Element
Models: SU80HE-1, SU120HE-1, 81V80HE-1, 81V120HE-1, RSPE80HE-1,
RSPE120HE-1
4. Differential Temperature Controls
Models: SunEarth SETR 0301 U, Steca TR 0301 U, Goldline GL-30-X217, Goldline
GL-30-X216
5. Cast Iron Circulating Pumps with Integral Check Valve:
See appended Pump Sizing Chart
6. Stainless Steel and Bronze Circulating Pump with Integral Check Valve:
See appended Pump Sizing Chart
7. Thermostatic Mixing Valve
Models: Cash Acme Heatguard 110-D or Approved Equal.
An approved as equal mixing valve must meet ASSE Standard 1017, be CSA
and IAPMO approved, and shall have a range of selectability of at least 18ºF
(10ºC) and shall include a set point no higher than 122ºF (50ºC). In jurisdictions that require 100% lead free valves on the potable side of the solar water
heating system, use Watts 3/4 LFMMV-M1-US EDP #0559118 or approved
equal.
P.28
8. Heat Transfer Fluid
Dow Chemical Dowfrost HD or Approved Equal
9. Expansion Tank (Glycol Side)
Models: Amtrol Extrol 30 or Approved Equal.
Equal must be approved by the manufacturer for use with propylene glycol.
10. Pipe Insulation and Protective Coatings:
Rubatex Insult-Tube 180 or Approved Equal.
11. Pressure Gauge:
Winters Q804 or Approved Equal.
12. Ball, TPR, PR, Check, Specialty Valves:
Watts, B & K, Webstone, Cash Acme, Nibco, Arrowhead Brass, or Approved Equal
13. Copper Tubing, Copper and Brass Fittings:
Mueller, Cerro, Cambridge Lee, Elkhart or Approved Equal
14. Sensor Wire:
SunEarth, Honeywell/Genesis, Belden or Approved Equal.
Wire must be no less than 18/2 AWG.
System Operating Parameters:
The pressure in the solar collector loop should be within 20 - 50 PSI.
The flow rate in the collector loop should be between 0.8 – 5 GPM.
The temperature difference between the collector outlet sensor and the solar
tank sensor should be between 4 – 30 F degrees when the system is
operational.
P.29
Section 13
80 Gallon Cast Iron Pump Sizing Chart
Cast Iron Pump Sizing: 80 Gal
System 1:
System 2:
1/2" Type L Copper Piping
Friction
80 Gal Hx Tank
1 each 4X10
100' 1/2" L
1 GPM
misc
1.000
Total
Round up/off
4.759
5.000
80 Gal Hx Tank
2 each 4X8
100' 1/2" L
1.6 GPM
misc
Total
Round up/off
1.300
0.009
2.450
1 GPM @ 5' TDH
GRUNDFOS
TACO
UPS15-58FC
006-IFC
Speed 1
BZ Only
feet TDH
4.800
0.012
5.000
1.250
11.062
11.000 feet TDH
Cast Iron Pump Sizing: 80 Gal
System 3:
System 4:
Friction
80 Gal Hx Tank
1 each 4X10
100' 3/4" L
1 GPM
misc
1.300
0.009
0.440
1.000
Total
Round up/off
2.749
3.000 feet TDH
80 Gal Hx Tank
2 each 4X8
100' 3/4" L
1.6 GPM
misc
4.800
0.012
1.000
1.000
Total
Round up/off
6.812
7.000 feet TDH
UPS = 3 Speed Pump
FC = Flange Connection, Integral Check Valve
e.g. Grundfos UPS15-58FC
P.30
1.6 GPM @ 11' TDH
GRUNDFOS
TACO
UPS15-58FC
008-IFC
Speed 1
3/4" Type L Copper Piping
1 GPM @ 3' TDH
GRUNDFOS
TACO
UPS15-58FC
003-IFC
Speed 1
BZ Only
1.6 GPM @ 7' TDH
GRUNDFOS
TACO
UPS15-58FC
006-IFC
Speed 1
BZ Only
IFC = Intergral Flow Check (valve)
e.g. Taco 006-IFC
120 Gallon Cast Iron Pump Sizing Chart
Cast Iron Pump Sizing: 120 Gal
System 5:
System 6:
120 Gal Hx Tank
2 each 4X8
100' 1/2" L
1.6 GPM
misc
1/2" Type L Copper Piping
Friction
1.600
0.012
5.000
1.6 GPM @ 8' TDH
GRUNDFOS
TACO
UPS15-58FC
006-IFC
Speed 1
BZ Only
1.000
Total
Round up/off
7.612
8.000
120 Gal Hx Tank
2 each 4X10
100' 1/2" L
2 GPM
misc
5.700
0.018
8.110
1.500
Total
Round up/off
15.328
15.000
feet TDH
2 GPM @ 15' TDH
GRUNDFOS
TACO
UPS15-58FC
008-IFC
Speed 2
feet TDH
Cast Iron Pump Sizing: 120 Gal
System 7:
System 8:
120 Gal Hx Tank
2 each 4X8
100' 3/4" L
1.6 GPM
misc
3/4" Type L Copper Piping
Friction
5.700
0.012
1.000
1.6 GPM @ 8' TDH
GRUNDFOS
TACO
UPS15-58FC
006-IFC
Speed 1
BZ Only
1.000
Total
Round up/off
7.712
8.000
120 Gal Hx Tank
2 each 4X10
100' 3/4" L
2 GPM
misc
5.700
0.018
1.440
1.500
Total
Round up/off
8.658
9.000
feet TDH
2 GPM @ 9' TDH
GRUNDFOS
TACO
UPS15-58FC
005-IFC
Speed 1
008-IFC
feet TDH
P.31
Section 14
80 Gallon Stainless And Bronze Pump Sizing Chart
Pump Sizing Guide
System 1:
System 2:
80 Gal Hx Tank
1.000
Total
Round up/off
4.759
5.000
80 Gal Hx Tank
2 each 4X8
100' 1/2" L
1.6 GPM
misc
Pump Sizing Guide
80 Gal Hx Tank
1 each 4X10
100' 3/4" L
1 GPM
misc
Total
Round up/off
System 4:
80 Gal Hx Tank
2 each 4X8
100' 3/4" L
1.6 GPM
misc
Total
Round up/off
1/2" Type L Copper Piping
Friction
1.300
1 each 4X10
100' 1/2" L
1 GPM
misc
Total
Round up/off
System 3:
80 Gal
0.009
2.450
1 GPM @ 5' TDH
GRUNDFOS
TACO
UP15-10BUC5
006-IFC
Single Speed
feet TDH
Friction
4.800
0.012
5.000
1.250
11.062
11.000
feet TDH
80 Gal
3/4" Type L Copper Piping
Friction
1.300
0.009
0.440
1 GPM @ 3' TDH
GRUNDFOS
TACO
UP15-10BUC5
003-IFC
Single Speed
1.000
2.749
3.000
feet TDH
Friction
4.800
0.012
1.000
1.6 GPM @ 7' TDH
GRUNDFOS
TACO
UPS15-55SUC
006-IFC
Speed 1
1.000
6.812
7.000
1.6 GPM @ 11' TDH
GRUNDFOS
TACO
UPS15-55SUC
008-IFC
Speed 2
or UP15-42BUC5
feet TDH
BUC = Bronze Volute Union Connection, Integral Check Valve
SUC = Stainless Volute Union Connection, Integral Check Valve
e.g. Grundfos UPS15-55SUC
P.32
120 Gallon Stainless And Bronze Pump Sizing Chart
Pump Sizing Guide
System 5:
System 6:
120 Gal Hx Tank
2 each 4X8
100' 1/2" L
1.6 GPM
misc
System 8:
1.6 GPM @ 8' TDH
GRUNDFOS
TACO
UPS15-55SUC
006-IFC
Speed 1
1.000
7.612
8.000
120 Gal Hx Tank
2 each 4X10
100' 1/2" L
2 GPM
misc
5.700
0.018
8.110
Total
Round up/off
15.328
15.000
120 Gal Hx Tank
2 each 4X8
100' 3/4" L
1.6 GPM
misc
1/2" Type L Copper Piping
Friction
1.600
0.012
5.000
Total
Round up/off
Pump Sizing Guide
System 7:
120 Gal
feet TDH
1.500
feet TDH
120 Gal
3/4" Type L Copper Piping
Friction
5.700
0.012
1.000
1.6 GPM @ 8' TDH
GRUNDFOS
TACO
UPS15-55SUC
006-IFC
Speed 1
1.000
Total
Round up/off
7.712
8.000
120 Gal Hx Tank
2 each 4X10
100' 3/4" L
2 GPM
misc
5.700
0.018
1.440
Total
Round up/off
8.658
9.000
2 GPM @ 15' TDH
GRUNDFOS
TACO
UPS15-55SUC
008-IFC
Speed 3
UP15-42BUC5
feet TDH
2 GPM @ 9' TDH
GRUNDFOS
TACO
UPS15-55SUC
005-IFC
Speed 1
008-IFC
1.500
feet TDH
P.33
Section 15
SOLARAY SYSTEM MODEL NUMBERS
SINGLE TANK SYSTEMS – Electric Auxiliary
TE32P-80-1
TE32C-80-1
TE40P-80-1
TE40C-80-1
TE48P-80-1
TE48C-80-1
TE64P-80-1
TE64C-80-1
TE80P-80-1
TE80C-80-1
TE40P-120-1
TE40C-120-1
TE48P-120-1
TE48C-120-1
TE64P-120-1
TE64C-120-1
TE80P-120-1
TE80C-120-1
TE32P-80-N-1
TE32C-80-N-1
TE64P-80-N-1
TE64C-80-N-1
TE64P-80-N-1
TE64C-80-N-1
TE64P-120-N-1
TE64C-120-N-1
TWO TANK SYSTEMS–Electric Auxiliary
SINGLE TANK SYSTEMS – Tankless Gas Auxiliary
TE32P-80-TLG
TE32C-80-TLG
TE40P-80-TLG
TE40C-80-TLG
TE48P-80-TLG
TE48C-80-TLG
TE64P-80-TLG
TE64C-80-TLG
TE80P-80-TLG
TE80C-80-TLG
TE40P-120-TLG
TE40C-120-TLG
TE48P-120-TLG
TE48C-120-TLG
TE64P-120-TLG
TE64C-120-TLG
TE80P-120-TLG
TE80C-120-TLG
TE32P-80-2
TE32C-80-2
TE40P-80-2
TE40C-80-2
TE48P-80-2
TE48C-80-2
TE64P-80-2
TE64C-80-2
TE80P-80-2
TE80C-80-2
TE40P-120-2
TE40C-120-2
TE48P-120-2
TE48C-120-2
TE64P-120-2
TE64C-120-2
TE80P-120-2
TE80C-120-2
TWO TANK SYSTEMS–Gas Auxiliary
TE32P-80-2G
TE32C-80-2G
TE40P-80-2G
TE40C-80-2G
TE64P-80-2G
TE64C-80-2G
TE64P-80-2G
TE64C-80-2G
TE80P-80-2G
TE80C-80-2G
TE40P-120-2G
TE40C-120-2G
TE48P-120-2G
TE48C-120-2G
TE64P-120-2G
TE64C-120-2G
TE80P-120-2G
TE80C-120-2G
TE48-80-75G
TE32P-80-N-2G
TE32C-80-N-2G
TE64P-80-N-2G
TE64C-80-N-2G
Example: TE64C-80-2
T= Tank Type, Double Wall Vented Heat Exchanger
E=Empire Series Collectors
64=Nominal 64 Square Foot Collector Area
C=Chrome Absorber
80=80 Gallon Solar Tank
2=2 Tank System With Supplemental Electric Water Heater
N = No Supplemental Water Heater Blanket
TLG = Supplemental Tankless Gas Water Heater
G = Supplemental Tank Type Gas Water Heater
Note:To substitute a semi-selective absorber plate coating, delete "C" and add "P"
P.34
Section 16
SOLARAY AC OG-300 LABEL TEXT ( REQUIRED TO BE LAMINATED BY THE INSTALLING
CONTRACTOR AND ATTACHED TO THE TANK PLUMBING ACCORDINGLY)
VALVE NO. 23
COLD WATER SUPPLY LINE ISOLATION BALL VALVE
THIS VALVE IS NORMALLY OPEN AND ALLOWS POTABLE WATER TO FILL THE SOLAR STORAGE TANK.
WHEN CLOSED THE SOLAR STORAGE TANK IS ISOLATED FROM THE PRESSURIZED CITY COLD WATER
SUPPLY LINE PIPING.
VALVE NOS. 5 AND 10
VALVE S 5 AND 10 ARE NORMALLY OPEN. WHEN CLOSED THE SOLAR COLLECTOR LOOP PIPING IS
ISOLATED FROM THE SOLAR STORAGE TANK.
VALVE NOS. 12 AND 14
VALVES 12 AND 14 ARE NORMALLY OPEN. WHEN CLOSED THE CIRCULATING PUMP IS ISOLATED FROM
THE SOLAR COLLECTOR LOOP PIPING. NEVER SHUT THESE VALVES WHILE THE CIRCULATING PUMP IS
IN OPERATION. TURN THE TOGGLE SWITCH, NO. 21, TO THE “OFF” POSITION.
VALVES NOS. 9 AND 11
VALVES 9 AND 11 ARE NORMALLY CLOSED. WHEN OPEN THEY ARE USED TO CHARGE AND DRAIN THE
SOLAR COLLECTOR LOOP PIPING.
THE HEAT TRANSFER FLUID USED IN THIS SYSTEM IS DOWFROST HD PROPYLENE GLYCOL. IT MUST BE
HANDLED AND DISPOSED OF IN ACCORDANCE WITH THE DOW CHEMICAL COMPANY MATERIAL SAFETY
DATA SHEET MSDS NO. 000130. A COPY OF THE MSDS HAS BEEN PROVIDED WITH YOUR INSTALLATION
MANUAL.
BE EXTREMELY CARFUL WHEN DRAINING THIS FLUID. IT MAY BE DISCHARGED AT A VERY HIGH
TEMPERATURE AND/OR PRESSURE.
NO OTHER FLUID SHALL BE USED THAT WOULD CHANGE THE ORIGINAL CLASSIFICATION OF THIS
SYSTEM. UNAUTHORIZED ALTERATIONS TO THIS SYSTEM COULD RESULT IN A HAZARDOUS HEALTH
CONDITION.
FREEZE LABEL:
A 60% CONCENTRATION OF DOWFROST HD PROPYLENE GLYCOL AND DISTILLED WATER CAN PROTECT
YOUR SOLARAY SYSTEM TO TEMPERATURES AS LOW AS -650° F. LESSER CONCENTRATIONS OF
DOWFROST HD AND DISTILLED WATER WILL PROVIDE A LOWER LEVEL OF FREEZE PROTECTION.
PLEASE CONSULT SECTION 4.11.1 OF YOUR INSTALLATION MANUAL FOR SPECIFIC
FREEZE TOLERANCE INFORMATION.
ADDITIONAL TWO TANK SYSTEM VALVES
VALVE NO. 25
THIS VALVE IS NORMALLY OPEN. WHEN CLOSED IN CONJUNCTION WITH VALVE NO. 22 WILL ISOLATE
THE SOLAR STORAGE TANK FOR REPLACEMENT OR MAINTENANCE.
VALVE NO. 30
THIS VALVE IS NORMALLY OPEN. WHEN CLOSED IN CONJUNCTION WITH VALVES 22 AND 25 WILL
ISOLATE THE BACK-UP WATER HEATER FOR REPLACEMENT OR MAINTENANCE
P.35
Installation Manual
TEN-YEAR LIMITED PRODUCT WARRANTY
This warranty only applies to the following SunEarth products (hereinafter SunEarth Products):
COLLECTORS: Empire, Imperial, SunWise, SunBelt and Custom Collectors
ABSORBERS: SunBurst and Custom Absorber Plates used in any glazed application
ICS AND DRAINBACK: CopperHeart ICS, CopperHeart Tanks, and CopperStor DrainBack Tanks
Under conditions of normal use and service the above SunEarth Products are warranted to the original, or
subsequent users, for a period of 10 years from the date of sale to the end user. SunEarth's liability for these
products shall be limited to repairing or replacing at SunEarth's option, without charge, F.O.B. SunEarth's
factory or an authorized SunEarth distributor or service center. SunEarth will not be liable for any costs of
transportation, inspection, removal, reinstallation, or any other labor or freight charges that may arise in
connection with a warranty claim, except as expressly set forth in this warranty.
 The use of ANY of the above SunEarth Products for pool or spa heating is NOT covered by this
warranty, UNLESS the pool or spa water is isolated from the above SunEarth Products through the use of a
heat exchanger.
FIELD LABOR
Field labor to repair or replace any defective SunEarth Product is reimbursable as follows:
Year 1
Year 2 ~ 5
Year 6 ~ 10
$100/collector
$75/collector
$50/collector
FREIGHT AND SHIPPING EXPENSES
In the event of a valid warranty claim approved by SunEarth, SunEarth will pay for freight and shipping
expenses as follows:
Year 1 of Warranty: SunEarth will pay the freight and shipping costs for the new or repaired SunEarth
Product between SunEarth and the nearest local distributor, dealer, authorized service center, city, or
shipping terminal.
After Year 1 of Warranty: Freight and shipping costs are the responsibility of the owner.
THIS WARRANTY DOES NOT APPLY
This warranty does not apply to the following: (1) conditions resulting from a failed component or part
that is not part of the above listed SunEarth Products; (2) to damage caused by freezing conditions; (3) to
conditions resulting from misuse, abuse, neglect, accident, or alteration; (4) to cosmetic discoloration of the
collector framewall, absorber plate, or glazing over time; (5) to glass breakage; (6) to conditions resulting
from the introduction of harmful chemicals, caustic fluids, or liquids deleterious to copper tubing, including
improperly applied or maintained heat transfer fluids or chlorinated pool or spa water; (7) to SunEarth
Products in which heat transfer fluids other than potable water or propylene glycol (DowFrost HD
recommended) was used; (8) to propylene glycol pH levels above 10 or below 8; (9) to periods of
Effective 11/12/09
Protecting Our Environment – Since 1978
www.sunearthinc.com
stagnation in excess of 30 days; (10) to excessive pressure; (11) to erosion corrosion of the copper tubing
resulting from excessive flow rates; (12) to improper plumbing configurations that do not conform to
SunEarth’s manifolding requirements;(13) to clouding or condensation naturally resulting from temporary
intrusions of moisture into the collector; (14) to conditions resulting from floods, earthquakes, winds, fire,
lightning, or circumstances beyond SunEarth's control; (15) to damage caused by installation methods,
including mounting, that do not conform to relevant national, state or local codes and ordinances, good
industry practices, or to current applicable SunEarth manuals, diagrams, technical bulletins, or written
installation instructions; (16) or to applications other than medium temperature (110 - 160F) domestic water
heating.
If one of the above SunEarth Products is purchased outside the continental United States certain conditions
of this warranty may NOT apply. Please contact your local SunEarth distributor or dealer for details.
LIMITED WARRANTY
EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY, THE ABOVE SUNEARTH
PRODUCTS ARE PROVIDED WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR ANY WARRANTY
OR NON-INFRINGEMENT. SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED
WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.
LIMITATIONS OF REMEDIES
IN NO EVENT SHALL SUNEARTH BE LIABLE FOR ANY DAMAGES FOR LOST PROFITS,
LOST SAVINGS OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES, ARISING OUT
OF THE USE OR INABILITY TO USE THE ABOVE SUNEARTH PRODUCTS, OR FOR ANY
CLAIM BY A THIRD PARTY. SOME STATES DO NOT ALLOW THE LIMITATION OR
EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATION MAY NOT APPLY TO YOU.
EXCLUSIVE AGREEMENT
THIS WARRANTY CONSTITUTES THE ENTIRE, COMPLETE, FINAL, AND EXCLUSIVE
AGREEMENT FOR THE SUNEARTH PRODUCTS LISTED ABOVE.
THIS WARRANTY
SUPERSEDES ANY PROPOSAL, AGREEMENT, OR REPSRESENTATION, OR ANY OTHER
COMMUNICATION, EITHER WRITTEN OR ORAL, MADE BETWEEN SUNEARTH AND
SUNEARTH’S DISTRIBUTORS OR DEALERS, OR BETWEEN SUNEARTH AND THE END
CONSUMER.
HOW TO MAKE A CLAIM
To obtain service under this warranty, the product in question must be returned to the distributor or dealer
of SunEarth products nearest you, or an authorized SunEarth service center. Each claim must be
accompanied by documentation providing the following:
1)
2)
3)
4)
5)
6)
7)
8)
Owner’s name, address, email address, and phone number
Installation contractor’s name, email address, and phone number
Original sales receipt
Product model and serial number(s)
Date of installation
Date of failure
Reason for failure
Pictures of the suspected manufacturing defect – digital pictures of the suspected manufacturing defect
also need to be submitted
If you have any warranty questions, contact your installation contractor or SunEarth at (909) 434-3100.
Effective 11/12/09
Protecting Our Environment – Since 1978
www.sunearthinc.com
A
8425 Almeria Avenue • Fontana, CA 92335
Phone: (909) 434-3100 • Fax: (909) 434-3101
email: [email protected] • www.sunearthinc.com
Revised 4-13-10
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