Lochinvar Sun Saver Solar, SE-i Installation Manual

This solar electric water heater’s design is certified by Underwriters
Laboratories (UL) and listed in accordance with UL 174. C-UL listed in
accordance with Canadian National Standard C22.2, No. 110-M90.

This water heater must be installed in accordance with local codes. In the
absence of local codes, install this water heater in accordance with the
N.E.C. Reference Book (latest edition).

The warranty for this water heater is in effect only when the water heater
is installed, adjusted, and operated in accordance with these Installation
and Operating Instructions. The manufacturer will not be held liable for
damage resulting from alteration and/or failure to comply with these
instructions.

This water heater has been designed and certified for the purpose of
heating potable water. The installation and use of this water heater for any
purpose other than the heating of potable water, may cause damage to the
water heater and create a hazardous condition and nullify the warranty.

Do not use this appliance if any part has been submerged in water. The
plumbing professional responsible for the installation of this water heater
should be contacted to inspect the appliance and to replace any part of the
control system, including thermostat (if equipped), which has been
submerged in water.

Asacrificial anode is used to extend tank life. Removal of this anode, for
any reason, will nullify the warranty. In areas where water is unusually
active, an odor may occur at the hot water faucet due to a reaction
between the sacrificial anode and impurities in the water. If this should
happen, an alternative anode may be purchased from the supplier that
installed this water heater. This alternative anode will minimize the odor
while protecting the tank. Additionally, the water heater should be
flushed with appropriate dissolvers to eliminate any bacteria.

LOCA TION

This water heater must be located in an area where leakage of the tank or
water line connections and the combination temperature and pressure
relief valve will not result in damage to the area adjacent to the water
heater or to lower floors of the structure. When such locations cannot be
avoided, a suitable drain pan must be installed under the water heater. The
drain pan must be no greater than 1 1/2 in. (3.8 cm) deep and have a
minimum length and width of at least 4 in. (10.2 cm) measured from the
jacket of the water heater. The drain pan, as described above, can be
purchased from your plumbing professional. The drain pan must be piped
to an adequate drain. The piping must be pitched for proper drainage.

WATER CONNECTIONS

After shutting the main water supply valve, open a faucet to relieve the
water line pressure to prevent any water from leaking out of the pipes
while making the water connections to the water heater. After the
pressure has been relieved, close the faucet. Make the proper plumbing
connections between the water heater and the plumbing system in the
house. Install a shut-off valve in the cold water supply line.

If this water heater is installed in a closed water supply system, such as
the one having a back-flow preventer in the cold water supply, provisions
shall be made to control thermal expansion. DO NOT operate this water
heater in a closed system without provisions for controlling thermal
expansion. Your water supplier or local plumbing inspector should be
contacted on how to control this situation.

If sweat fittings are to be used, DO NOT apply heat to the
nipples on top of the water heater. Sweat the tubing to the
adapter before fitting the adapter to the water connections. It is
imperative that heat is not applied to the nipples containing a
plastic liner.

CAUTION

Before proceeding with the installation, close the main water
supply valve.

NOTE

Water heaters are heat producing appliances. To avoid damage or
injury, there shall be no materials stored against the water heater
and proper care shall be taken to avoid unnecessary contact
(especially by children) with the water heater. UNDER NO

CIRCUMSTANCES SHALL FLAMMABLE MATERIALS,
SUCH AS GASOLINE OR PAINT THINNER BE USED OR
STORED IN THE VICINITY OF THIS WATER HEATER
OR ANY LOCATION FROM WHICH FUMES COULD
REACH THE WATER HEATER.

WARNING

Hydrogen gas can be produced in a hot water system served by
this water heater when it has not been used for a long period of
time (generally two weeks or more). Hydrogen gas is extremely
flammable

. To reduce the risk of injury under these conditions,
it is recommended that the hot water faucet be opened for
several minutes at the kitchen sink before using any electrical
appliance connected to the hot water system. If hydrogen is
present, there will probably be an unusual sound, such as air
escaping through the pipe as the water begins to flow. There
should be no smoking or open flame near the faucet at the time
it is open.

WARNING

1

Solar Electric

Water Heater

INSTALLATION AND OPERATING INSTRUCTIONS

SE-i&s-02

This water heater is designed to be used only with forced circulation. The
pump may be mounted directly on top of the unit. The plumbing
professional installing the water heater has the option of using either the
top or side connections for the pump suction and collector return lines
(See Figure 1). If the side connections are used, the corresponding top
connections must be capped (plugged). Each water heater is
manufactured with plugs installed in the side connections. If the side
connections are to be used, the plugs installed at the factory must be
removed. Connect the inlet side of the pump to the line marked pump
suction connection. Connect the outlet of the pump to the inlet of the
solar connector. The outlet of the collector should be connected to the
fitting marked collector return.

The two fittings on top not

used for the pump suction and collector return
lines are for connecting the cold water inlet supply and the hot water
outlet supply.

Ableed valve shall be installed in the system above the level of the pump
in order to bleed the air out of the water lines.

If this water is installed on a system utilizing any heat transfer solution
other than potable water, a separate heat exchanger must be installed. A
qualified heat exchanger must be constructed in such a manner that failure
of the heat exchanger will not result in contamination of the potable water.
If a separate heat exchanger is used, forced circulation must be used
between the heat exchanger and the solar storage unit. Using either the
top or side connections, connect the inlet of the pump to the pump suction
connection and return line from the heat exchanger to the collector return
connection.

After the installation of all water lines is complete, open the main water
supply valve and fill the heater. Open several hot water faucets to allow
air to escape from the system while the water heater is filling. When
water passes through all the faucets, close the faucets and check for
possible leaks in the system.

This water heater can deliver scalding temperature water at any faucet in
the system. Be careful whenever using hot water to avoid scalding injury.
Certain appliances, such as dishwashers and automatic clothes washers
may require increased temperature water. By setting the thermostat on
this water heater to obtain increased temperature water required by these
appliances, you may create the potential for scald injury.

To protect against injury, you should install an anti-scald tempering valve
in the water system. This valve will reduce point of discharge
temperature by mixing cold and hot water in branch supply lines. Such
lines are available from the local plumbing supplier. Please consult with
a plumbing professional.

Under certain conditions, water in this water heater may become
excessively hot. It is recommended that a thermostatically
controlled tempering valve may be installed in the outlet line to
reduce the risk of scald injury by preventing point of discharge
water temperatures in excess of 140°F (60°C).

CAUTION

Increasing the thermostat setting above the preset temperature
may cause severe burns and consume excessive energy. Hotter
water increases the risk of scald injury.

CAUTION

This water heater does not contain a heat exchanger, therefore,
only potable water may be allowed to enter the water heater.

IMPORTANT

Install the combination temperature and pressure relief valve into the
opening provided and marked for this purpose on the water heater.

Install a discharge line so that water discharged from the
combination temperature and pressure relief valve will exit within 6
in. (15.3 cm) above, or any distance below the structural floor and
cannot contact any live electrical part. The discharge line is to be
installed to allow for complete drainage of both the temperature and
pressure relief valve and the discharge line. The discharge opening
must not be subjected to blockage or freezing. DO NOTthread, plug
or cap the discharge line. It is recommended that a minimum of 4 in.
(10.2 cm) be provided on the side of the water heater for servicing
and maintenance of the combination temperature and pressure relief
valve.

Do not place a valve between the combination temperature and
pressure relief valve and the tank.

WARNING

2

Figure 1