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WATERPIK TECHNOLOGIES INC.
Gas-Fired Pool Heaters, ANSI Z21.56, and in Canada
with CAN1-4.7-M85.
Certain sections of this manual are specific to
either United States or Canadian installations, and are
labeled as such.
1B. Description
The Laars Lite 2 LD heater gets electrical power
from an external 120VAC or 240VAC source and
provides a dual thermostat Flex-Temp control system
for pool/spa combinations or preheat convenience. The
Laars Lite 2 LD heater also meets the California, New
York, Hawaii, and Oregon state energy requirements
for intermittent ignition gas appliances. The Laars Lite
2 LG heater is a self contained standing pilot unit and
requires no external power.
The Laars Lite 2 heater is specifically designed
for heating swimming pools and spas. Do not use it as
a general service water heater. There is a specially
designed model of Laars Lite 2 for heating salt water
pools. Consult your dealer for the appropriate
Waterpik Laars products for these applications.
1C. Warranty
The Laars Lite 2 heater is sold with a limited
factory warranty. Details are specified on the back
cover of this manual. A copy of the warranty and a
warranty registration card are included in the plastic
bag shipped with the heater. Fill out and return the
warranty registration card.
Make all warranty claims to an authorized
Waterpik Laars representative or directly to the
factory. Claims must include the heater serial number
and model (this information can be found on the rating
plate), installation date, and name of the installer.
Shipping costs are not included in the warranty cover-
age.
Damage caused by improper installation or
assembly, or to the heat exchanger by corrosive water,
is NOT covered by the Warranty. See Section 3D for
maintaining proper pool water chemistry.
NOTE: Keep this manual in a safe place for
future reference when inspecting or servicing the
heater.
1D. Technical Assistance
Consult Waterpik Laars or your local distributor
with any questions or problems involving the specifica-
tions, installation, and operation of your Waterpik
Laars equipment. An experienced technical support
staff is ready to assist in assuring the proper perfor-
mance and application of Waterpik Laars products.
For technical support call (415) 382-8220 extension
260.
SECTION 2.
Installation Instructions
2A. General Information
Install the Laars Lite 2 heaters, vent caps and
drafthoods in accordance with the procedures in this
manual, local codes and ordinances, and in accordance
with the latest edition of the National Fuel Gas Code,
ANSI Z223.1. In Canada, the installation must be in
accordance with CAN1-B149.1 or .2 and local codes.
The authority having jurisdiction may require that the
installation conform to the Standard for Gas-Fired
Heaters, ANSI Z21.56. Any changes to the heater, gas
controls, gas orifices, wiring, draft diverter, or im-
proper installation may void the warranty. If field
conditions require change to any of the above, consult
the factory.
All gas-fired products require correct installation
to assure safe operation. The requirements for pool
heaters include the following:
1. Field assembly (if required)
2. Appropriate site location (clearances) and
flooring
3. Sufficient combustion and ventilation air
4. Properly sized gas meter and piping
5. Proper electrical wiring (if required)
6. Adequate water flow
This manual provides the information needed to
meet these requirements. Review all application and
installation procedures completely before continuing
the installation.
2B. Field Assembly
The Laars Lite 2 heater is shipped from the
factory with the top assembly in the low-profile
configuration for outdoor installation in the U.S. In
Canada, an outdoor installation requires the addition of
a factory approved vent cap. The Laars Lite 2 heater is
design certified for indoor installation when equipped
with a drafthood, which must be installed without
modification.
The Laars Lite 2 heater is also certified for
installation in an outdoor shelter in Canada when
equipped with a drafthood. An outdoor shelter is an
enclosure not normally occupied which does not
communicate directly with occupied areas.
Check the rating plate on the heater or the Parts
List (Sec. 4) of this manual for the correct Waterpik
Laars drafthood or vent cap part number. See instruc-
tions supplied with the drafthood or vent cap for
installation and attachment. When the drafthood is
used, locate the heater so as to be in the same atmo-
spheric pressure zone as the combustion air inlet to the
heater.