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Legacy
™
Model LRZM Pool/Spa Heater Installation and Operation Manual
10. Coat the threads of the pressure relief valve
(PRV) with an appropriate metal to metal thread
sealant.
11. Install the adapter on the PRV and tighten using
two wrenches. Use the mark made earlier on the
adapter to orient the PRV to the desired direction
in relation to the water connections on the header.
12. Wrap the threads of the adapter with a suitable
te
fl
on thread tape.
13. Reinstall the adapter, with the PRV, into the
plastic threaded hole and tighten it until the mark
on the adapter is once again facing the same
direction as the water connections on the header.
CAUTION
Do not use any pipe compound or pipe dope on
the threads of the adapter or any part that comes in
contact with the plastic headers. These compounds
may damage the header over a period of time.
ATTENTION
N’utilisez ni pâte à joint ni pâte lubri
fi
ante sur le
fi
letage du raccord intermédiaire ou sur toute pièce
qui entre en contact avec le tuyau collecteur. Ces
produits risquent d’endommager le tuyau après un
certain temps.
CAUTION
In order to prevent property damage, do not over-
tighten. Overtightening may crack the header.
ATTENTION
A
fi
n d'empêcher des dégâts matériels, ne serrez
pas trop. Le serrage excessif peut provoquer des
fi
ssures dans la tête
DO NOT TIGHTEN WITH A WRENCH.
Overtightening may crack the header. Route the
discharge piping so that discharge from the pipe does
not endanger anyone near the heater. Refer to your
local installation codes for more detailed information.
The valve setting should be at or below the maximum
working pressure of any component in the
fi
lter
system. The maximum working pressure of the Legacy
heater is 75 psig.
5.7 Auxiliary
Components,
Chlorinators, Ozone Generators,
and Sanitizing Chemicals
The Legacy heater is manufactured with materi-
als that are not compatible with high concentrations of
ozone, chlorine, bromine, or other sanitizing chemi-
cals. Heater damage caused by excessive chemicals
or improper ozonization is not covered by the Zodiac
Pool Systems, Inc. warranty. Be sure to adhere to the
following:
•
When ozone is injected upstream of the heater,
install an offgas mixing chamber, or an ozone
bypass system between the heater and the ozone
injector to prevent ozone and air from entering
the heater.
•
When chemical feeders are used, plumb the
feeder downstream of the heater and install an
in-line check valve between the heater and the
feeder (a minimum of 18" is required between
the heater and the check valve).
•
Wire any electrical chemical feeder so that it
cannot operate unless the
fi
lter pump is running.
If the feeder has an independent clock control,
synchronize it with the
fi
lter clock.
•
Never deposit chemicals directly in the pool
skimmer.
Figure 13. Drill Hole for Pressure Relief Valve
TEMPORARILY INSTALL
BRASS ADAPTER TO
PROTECT PLASTIC
THREADS
START WITH A 1/4" BIT
THEN OPEN HOLE WITH
A 3/8" BIT THEN OPEN
HOLE WITH A 1/2" BIT
Figure 14. Pressure Relief Valve Installation
RUBBER WASHER
BRASS ADAPTER
PRESSURE RELIEF
VALVE HAND
TIGHTEN ONLY
Summary of Contents for Legacy LRZM
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