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Legacy™ Model LRZM Pool/Spa Heater
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Installation and Operation Manual
1.2.2 swimming pool energy saving
tips
Zodiac Pool Systems, Inc., ("Zodiac") offers the
following recommendations to help conserve fuel
and minimize the cost of operating your pool heater
without sacrificing comfort.
1. The American Red Cross recommends a
maximum water temperature of 25°C (78°F).
Use an accurate pool thermometer. A difference
of 2°C (4°F), between 26°C and 28°C (78°F and
82°F), will use as much as 40% more gas.
2. Carefully monitor the water temperature of your
pool in the summertime. You can reduce heater
usage due to warmer air temperatures.
3. Find the proper setting on the pool heater temper-
ature control and use the Set Point Lockout
feature to discourage further adjustments.
4. Set the pump time clock to start the pump no
earlier than 6:00 AM during the pool heating
season. This is the time when nightly heat loss
balances.
5. If the pool is only going to be used on weekends,
reduce the heater temperature control setting by
8 or 10 degrees during the week. Reset it to the
25°C (78°F) level a day or so before you plan to
use the pool.
6. During the winter or when on vacation for longer
than a week, shut down the heater by following
the shutdown instructions found on the inside of
the heater.
7. Where possible, shelter the pool from prevail
-
ing winds with well-trimmed hedges or other
landscaping, cabanas, or fencing.
8. Always use a pool cover when practical. Besides
providing a valuable safety feature, a pool cover
will reduce heat loss, conserve chemicals, and
reduce the load on filter systems.
1.3
Warranty
The Legacy Model LRZ millivolt heater is sold
with a limited factory warranty. Details are specified
on the back cover of this manual.
Make all warranty claims to an authorized Zodiac
representative or directly to the factory. Claims must
include the heater serial number and model (this infor-
mation can be found on the rating plate), installation
date, and name of the installer. Shipping costs are not
included in the warranty coverage.
The warranty does NOT cover damage caused
by improper assembly, installation, operation or field
modification. Also, damage to the heat exchanger by
corrosive water is NOT covered by the warranty. See
Section 9.1 for maintaining proper pool water
chemistry.
note
Keep this manual in a safe place for future
reference when inspecting or servicing the heater.
1.4
Codes and standards
The Legacy Model LRZ millivolt heater has
been tested and certified by GL Industrial Services for
compliance with the Gas Appliance Directive (GAD;
2009/142/EC) and the latest version of European
Standard, BSEN 656. In addition, the product has
also been found to be in compliance with the essen-
tial requirements of the Low Voltage Directive (LVD;
2006/95/EC), and the Electromagnetic Compatibility
Directive (EMC Directive; 2004/108/EC).
All Zodiac heaters must be installed in accor-
dance with the local building and installation codes as
per the utility or authorities having jurisdiction.
Any changes to the heater, gas controls, gas
orifices, wiring, draft hood, vent cap, or improper
installation may void the warranty. If change is
required to any of the above, consult the factory.
1.5
technical assistance
Consult your local Zodiac distributor with any
questions or problems involving the specifications,
installation, and operation of your Zodiac equipment.
1.6
Materials installer Must provide
1.6.1 Materials for all applications
The following items are needed and are to be
supplied by the installer for
all
Legacy Model LRZ
millivolt heater installations:
1. The correct size gas pipe to supply gas from the
meter to the heater (see Section 4.1).
2. A manually operated gas cock to be installed in
the gas line outside of the heater jacket.
3. Plumbing items needed to provide a sediment
trap (drip leg) in the gas line between the manual
gas cock and the heater (see Section 4.1).
1.6.2 Materials for special
applications
In addition to the items listed above, the follow-
ing items are needed for special applications:
1. A factory authorized draft hood and any vent
pipe needed for indoor installations. See Section
3.3.2. Draft hoods are available from any Zodiac
distributor.
2. Primer and cement suitable for cementing PVC
pipe to the CPVC Zodiac unions supplied with
the heater.
Summary of Contents for Legacy LRZ
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