Jandy LRZ Electronic User Manual

Page 15
ENGLISH
Installation and Operation Manual
|
Jandy
®
Legacy™ Model LRZE Pool/Spa Heater by Zodiac
®

SupplyPressure Minimum Maximum
NaturalGas 5.5inchesW.C.
(1.4kPa)
10.0inchesW.C.
(2.5kPa)
LPGas 10.0inchesW.C.
(2.5kPa)
14.0inchesW.C.
(3.5kPa)
ManifoldPressure Nominal
NaturalGas 4.0inchesW.C.(1.0kPa)
LPGas 9.0inchesW.C.(2.2kPa)
Themaximuminletgaspressuremustnot
exceedthespeciedvalue.Theminimum
valuelistedisforthepurposeofinput
adjustment.RefertoTable5.
8. Before operating the heater, test the complete gas
supply system and all connections for leaks using
a soap solution. Do not use an open ame.

Someleaktestsolutions(includingsoapandwater)
maycausecorrosionorstresscracking.Rinsethe
pipingwithwateraftertesting.

Certainessolutionsd’essaid’étanchéité(ycompris
l’eauetlesavon)peuventcauserdelacorrosion
oudelassuration.Rincezlestuyauxàl’eauaprès
l’essaid’étanchéité.

Permanentdamagetothegasvalvewilloccurifthe
followingproceduresarenotfollowed.

Vousendommagerezlasoupapedegazsivousne
respectezpaslesprocéduressuivantes.
3. Use the gures in Table 4 to size the gas inlet
piping from the gas meter to the heater. Check all
local codes for compliance before installing the
heater.

DistancefromGasMeter
Heater
Size
0-50feet
(0-15m)
50-100feet
(15-30m)
100-200feet
(30-60m)
in. mm in. mm in. mm
125 3/4 19 1 25 1 25
175 1 25 1 25 1-1/4 32
250 1 25 1-1/4 32 1-1/4 32
325 1-1/4 32 1-1/4 32 1-1/2 38
400 1-1/4 32 1-1/2 38 1-1/2 38

*1.Thesenumbersarefornatural gas (0.65Sp.Gr.)and
arebasedon1/2inch(3.45kPa)watercolumnpressure
drop.Checksupplypressurewithamanometer,andlocal
coderequirementsforvariations.


2. Checksupplypressureandlocalcoderequirementsbefore
proceedingwithwork.
3. Pipettingsmustbeconsideredwhendetermininggas
pipesizing.
4. Install a sediment trap (drip leg) ahead of the gas
controls, see Figure 6. Fit the trap with a threaded
cap which can be removed for cleaning.
5. Install a manual gas shutoff valve for service
and safety. Do not use a restrictive gas cock.
DO NOT USE FLEXIBLE GAS PIPING, it will
restrict the gas ow to the heater.
6. Disconnect the heater and its individual shutoff
valve from the gas supply system during pressure
testing of the system at pressures higher than 1/2
pounds per square inch (psi) (3.45 kilopascals
[kPa]). If the test pressure is equal to or less than
1/2 psi (3.45 kPa), close the manual shutoff valve
on the heater during the piping pressure test.
7. If the gas supply pressure is less than required,
check for undersized pipe between the meter and
the heater, a restrictive tting, or an undersized
gas meter. Gas supply pressures to the heater are
listed in Table 5.
 
APPROVED

Jandy LRZ Electronic Specifications

General

Brand	Jandy
Model	LRZ Electronic
Category	Swimming Pool Heater
Language	English