Lochinvar Compact ASME Hi-Power Installation Manual

INSTALLATION & SERVICE MANUAL

Compact ASME

ASME COMMERCIAL ELECTRIC WATER HEATER

THE WARRANTY ON THIS WATER HEATER IS IN EFFECT ONLY WHEN
THE WATER HEATER IS INSTALLED AND OPERATED IN ACCORDANCE
WITH LOCAL CODES AND THESE INSTRUCTIONS. THE MANUFACTURER
OF THIS WATER HEATER WILL NOT BE LIABLE FOR ANY DAMAGE
RESULTING FROM FAILURE TO COMPLY WITH THESE INSTRUCTIONS.
READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.

For safety, convenience, and best performance, we recommend this water
heater be installed and serviced by a plumbing professional.

CONGRATULATIONS!

You have just purchased one of the finest water heaters on the market
today!

This installation, operation and instruction manual will explain in detail the
installation and maintenance of your new ASME Commercial Electric Water
Heater. We strongly recommend that you contact a plumbing professional
for the installation of this water heater.

We require that you carefully read this manual, as well as the enclosed
warranty, and refer to it when questions arise. If you have any specific
questions concerning your warranty, please consult the plumbing
professional from whom your water heater was purchased. For your records
we recommend that you write the model, serial number and installation
date of your water heater in the notes section in the back of this manual.

This manual should be kept with water heater.

TABLE OF CONTENTS

GENERAL INFORMATION .......................................................... 1

INSTALLATION.........................................................................1

Locating The Water Heater ............................................... 1

Water Connections ...........................................................2

Electrical Connections ....................................................... 7

Amperage Chart...............................................................7

GPH Recovery Capacities .................................................. 8

GENERAL OPERATION ..............................................................8

Thermostat Adjustment..................................................... 8

MAINTENANCE ........................................................................ 9

SERVICING GUIDE ................................................................. 10

Notes ................................................................................... 12

GENERAL INFORMATION

This electric water heater’s design is certified by Underwriters Laboratories (UL)
and listed in accordance with UL 1453. C-UL listed in accordance with Canadian
National Standard Code 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 latest
edition of the National Electrical Code.

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.

CAUTION

Incorrect operation of this appliance may create a hazard to life
and property and will 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(s), which has been submerged in water.

Make sure that the rating plate on the water heater is referenced so that the
correct voltage is being supplied to the water heater.

DANGER

Do not store or use gasoline or other flammable, combustible,
or corrosive vapors and liquids in the vicinity of this water
heater or any other appliance.

A sacrificial anode(s) is used to extend tank life. Removal of any anode, for
any reason, will nullify the warranty. In areas where water is unusually active ,
or 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(s) may be purchased from the supplier that installed this water heater.
This will minimize the odor while protecting the tank. Additionally, the water
heater should be flushed with appropriate dissolvers to eliminate any bacteria.

IMPORTANT

Before proceeding, please inspect the water heater and its components
for possible damage. DO NOT install any damaged components. If damage
is evident, please contact the supplier where the water heater was purchased
or the manufacturer listed on the rating plate for replacement parts.

INSTALLATION

Locating The Water Heater

WARNING

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 THE WATER HEATER OR
ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER
HEATER.

This water heater MUST NOT be installed in any location where gasoline or
flammable vapors are likely to be present, unless the installation is such to
eliminate the probable ignition of gasoline or flammable vapors.

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Compact ASME

The location where this water heater is to be installed is of utmost importance.
Before installing this water heater, consult the installation section of these
instructions. After reading these installation and operating instructions, select a
location for the water heater where the floor is level and is easily accessible to
a power supply and water connections. It is recommended that the water
heater be located near the center of greatest hot water usage to prevent heat
loss through the pipes. DO NOT locate the water heater where water

lines could be subjected to freezing temperatures. Locate the water
heater so that access panels, drain valves, and clean-out openings
are accessible.

Water heater corrosion and component failure can be caused by the heating
and breakdown of airborne chemical vapors. Examples of some typical
compounds that are potentially corrosive are: spray can propellants, cleansing
solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals,
calcium or sodium chloride, waxes and process chemicals. These materials are
corrosive at very low concentration levels with little or no odor to reveal their
presence. NOTE: DAMAGE TO THE WATER HEATER CAUSED BY

EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY THE
WARRANTY. DO NOT OPERATE THE WATER HEATER IF EXPOSURE
HAS OR WILL OCCUR. DO NOT STORE ANY POTENTIALLY CORROSIVE
COMPOUNDS IN THE VICINITY OF THE WATER HEATER.

IMPORTANT

FAILURE TO INSTALL AND MAINTIAIN A NEW, LISTED
TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE THE
MANUFACTURER FROM ANY CLAIM WHICH MIGHT RESULT FROM
EXCESSIVE TEMPERATURE AND PRESSURES.

This water heater may be provided with an optional pressure and temperature
gauge. See Figure 1 for proper installation.

If this water heater is installed in a closed water supply system, such as one
having a back-flow preventer in the cold water supply, provisions must be
made to control thermal expansion. DO NOT operate this water heater in a
closed system without provision for controlling thermal expansion. Contact
your water supplier or local plumbing inspector regarding how thermal expansion
can be controlled.

After installation of the water lines, open the main water supply valve and fill
the water heater. While the water heater is filling, open several hot water
faucets to allow air to escape from the water system. When a steady stream of
water flows through those faucets, close them and inspect all water connections
for possible leaks. NEVER OPERATE THE WATER HEATER WITHOUT FIRST

BEING CERTAIN IT IS COMPLETELY FILLED WITH WATER.

This water heater must be located in an area where leakage from the tank,
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 ½ 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

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

After shutting the main water supply valve, open a faucet to relieve the water
line pressure in order to prevent 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. The cold water inlet line connects to the inlet nipple
at the base of the water heater. The hot water outlet line connects to the nipple
on top of the water heater. The fittings at the cold water inlet and hot water
outlet are dielectric waterway fittings with tapered male threads. Make the
proper plumbing connections between the water heater and the plumbing
system in the structure. Install a manual shut-off valve in the cold water supply
line.

CAUTION

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 heater connections. It is imperative that heat is not
applied to the nipples containing a plastic liner.

WARNING

For protection against excessive temperatures and pressure, install
temperature and pressure protective equipment required by local codes,
but not less than a combination temperature and pressure relief valve
certified by a nationally recognized testing laboratory that maintains periodic
inspection of production of listed equipment or materials, as meeting the
Requirements for Relief Valves and Automatic Gas Shut-off Devices for Hot

Water Supply Systems, ANSI Z21.22, and the Standard CAN1-4.4
Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum
Relief Valves. The combination temperature and pressure relief valve shall

be marked with a maximum set pressure, not to exceed the maximum
working pressure of the water heater. The combination temperature and
pressure relief valve shall also have an hourly rated temperature steam
Btu/hr discharge capacity not less than the hourly input rating of the water
heater. Install the combination temperature and pressure relief valve into
the opening on the water heater, which is provided for this purpose.
Note: Some models may already be equipped or supplied with a combination
temperature and pressure relief valve. Verify that this combination
temperature and pressure relief valve complies with local codes. If the
combination temperature and pressure relief valve does not comply with
local codes, replace it with one that does. Follow the installation instructions
provided on this page.
Install a discharge line so that water discharged from the combination
temperature and pressure relief valve will exit within six (6) inches
(15.3 cm) above, or any distance below the structural floor and at a
location where discharges cannot contact any live electrical part. This
discharge line is to be installed for complete drainage of both the temperature
and pressure relief valve and the discharge line can occur. The discharge
opening must not be subjected to blockage or freezing. DO NOT thread,
plug or cap the discharge line. It is recommended that a minimum of four
(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.

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Compact ASME

WARNING

Hydrogen gas can be produced in the hot water system served by this
water heater when there has been no usage for a long period of time
(generally two weeks or more). Hydrogen gas is extremely flammable.
Therefore, 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.

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.

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 the increased temperature water required by these appliances, the
potential for scald injury is increased. To protect against injury, install an anti­scald tempering valve in the water system. This valve will reduce the point of
discharge water temperature by mixing cold and hot water in branch supply
lines. Anti-scald tempering valves can be obtained from your local plumbing
supplier. Please consult a plumbing professional.

Figure 1

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Compact ASME

Figure 2A

Figure 2B

(Dual Temperature System with Mixing Valve)

50A, 80A 120A

(Dual Temperature System with Mixing Valve)

6A, 12A, 20A, 30A 40A

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