Page 7
Legacy
™
Model LRZM Pool/Spa Heater Installation and Operation Manual
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 heater installa-
tions:
1.
The correct size gas pipe to supply gas from the
meter to the heater (see Section 4.1).
2.
A manually operated gas valve to be installed in
the gas line outside of the heater jacket.
3.
A suitable gas union joint to connect the heater to
the gas line outside of the heater.
4.
Plumbing items needed to provide a sediment
trap (drip leg) in the gas line between the manual
gas valve 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 vent pipe
for indoor installations in the USA and outdoor
shelter installations in Canada (see Section
3.2.2). Draft hoods are available from your Jandy
distributor.
2.
Primer and cement suitable for cementing CPVC
pipe to PVC pipe and an appropriate coupling
for connecting the factory supplied CPVC pipe
nipples to PVC pool plumbing.
3.
A noncombustible platform for installation
on combustible surfaces (see Section 2.3.3).
Noncombustible bases are available from your
Jandy distributor.
4.
A factory approved vent cap for all outdoor
installations where wind conditions may cause
downdrafting. Vent caps are available from your
Jandy distributor.
1.7 Speci
fi
cations
1.7.1 General
Speci
fi
cations
1. Installation
Location:
Certi
fi
ed for use:
In the USA:
Natural Gas:
Indoor and Outdoor
LP:
Indoor
and
Outdoor
In
Canada:
Natural Gas : Outdoor and Outdoor
Shelter
LP:
Outdoor and Outdoor
Shelter
2.
Minimum Clearance From Combustible Materi-
al:
See Table 2 in Section 2.3.2
3.
*Gas Pipe/Heater Gas Valve Connection:
Natural
Gas:
3/4"
NPT
LP:
3/4"
NPT
*
For diameter of gas line from meter to heater see Table 4 in
Section 4.1.
4. Supply
Gas
Type:
Certi
fi
ed for use with:
Natural Gas or Lique
fi
ed Petroleum Gas (LP
Gas or Propane Gas).
5.
Inlet Gas Supply Pressure:
Minimum
Maximum
Natural Gas:
5.5 "WC
10.0 "WC
LP Gas:
10.0 "WC
14.0 "WC
6.
Water Pipe/Heater Connection:
*2" Unthreaded PVC or CPVC
*
Other size pipes may be used. See Section 5.5 for details
7.
Water Flow Rate:
Maximum:
125 gpm (475 lpm)
Minimum:
30 gpm (110 lpm)
8. Working
Water
Pressure:
Maximum: 75
psi
9.
Exhaust Vent Connection Size: See Figure 1 in
Section 1.7.2, "Dimensions".
10. Electrical Supply: None (the Legacy LRZ milli-
volt heater is a millivolt heater with a standing
pilot ignition).
11. Modi
fi
cation of Heater for High Altitude:
The Legacy model LRZ millivolt heater is
normally shipped from the factory in the low
altitude (sea level) operational con
fi
guration.
When requested, the heaters can be con
fi
gured
and shipped for higher altitudes. For
fi
eld conver-
sions to change altitude con
fi
gurations, manifold
kits for mid altitudes and high altitudes are avail-
Summary of Contents for Legacy LRZM
Page 2: ......
