Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS Manuel d'utilisateur

INSTALLATION AND SERVICE MANUALSave this manual for future reference.WWAARRNNIINNGG: If theinformation in this manualis not followed exactly, afire o

IINNSSTTAALLLLAATTIIOONN ContinuedVVEENNTTIINNGGGeneral InformationYou must supply adequate combustion and ventilation air tothis pool heater. You mu

Figure 12 – Vent Termination from Flat Roof 10' or Lessfrom Parapet WallFigure 13 – Vent Termination from Flat Roof More Than 10'from Parape

IINNSSTTAALLLLAATTIIOONN ContinuedCombustion Air Inlet Piping WARNING: Locate and install thecombustion air inlet cap correctly. Failure to doso can

Figure 14 – Sidewall Combustion Air InletFigure 15 – Air Inlet Cap for Sidewall TerminationTo prevent recirculation of flue products from an adjacent

IINNSSTTAALLLLAATTIIOONN Continuedto the common air inlet. This exterior opening for combustionair must connect directly to the outdoors. The total l

Connect the flue vent directly to the flue outlet opening on thetop of the pool heater. No additional draft diverter orbarometric damper is needed on

IINNSSTTAALLLLAATTIIOONN Continuedproblems. The temperature of the flue products from a highefficiency pool heater may not be able to sufficiently he

Figure 20 – Vertical DirectAire Installation with RooftopCombustion Air InletVent Kits WARNING: Only use a sidewall air inlet capsupplied by the appl

IINNSSTTAALLLLAATTIIOONN ContinuedSidewall FanThe sidewall fan can be mounted on the inside/outside(depending upon model) with a sidewall vent hood i

Figure 22A – Direct Vent (Illustration with Sidewall Ventand Sidewall Combustion Air)Figure 22B – Sidewall Venting WARNING: Do not combine the flue f

Commercial Pool Heaters2TTaabbllee ooff CCoonntteennttssGeneral Product Information . . . . . . . . . . . . . . . . . . . . . . . . .3Special Instr

IINNSSTTAALLLLAATTIIOONN Continued Input Kit* Max. Vent Vent Max. VentBtu/hr (w/Power Length Termination Only LengthFan Assy.)(500,0

For proper operation, a barometric damper is provided forHorizontal DirectAireTMinstallations. The damper will help toensure a draft between negative

IINNSSTTAALLLLAATTIIOONN Continued90° elbow. Subtract 2.5 feet (0.7m) of equivalent length for each45° elbow.Masonry Chimney InstallationDo not use a

In cold climates, use a Type-B doublewall vent pipe or aninsulated single wall pipe for combustion air. This will helpprevent moisture in the cool inc

IINNSSTTAALLLLAATTIIOONN Continued2. On horizontal runs, do not install vent pipe with seamspointing down. Position vent pipe so that the seams are o

Vertical Combustion Air Inlet ClearancesYou must locate the air inlet termination elbow at least 12"(30cm) above the roof or above normal snow le

IINNSSTTAALLLLAATTIIOONN Continued* These kits include an outdoor vent cap and gasket.Flue gas condensate can freeze on exterior walls or on the vent

2. Isolate the pool heater from the gas supply piping systemby closing a manual shutoff valve during any pipingsystem pressure testing that is equal

IINNSSTTAALLLLAATTIIOONN ContinuedFigure 29 shows a typical pool heater gas train.Figure 29 – Typical Pool Heater Gas Train DrawingCombination Gas Va

13. Remove the manometer and related fitting from the “inlet”side of the gas valve, replace 1/8" hex plug in the gas valveand tighten.14. Turn on

GGEENNEERRAALL PPRROODDUUCCTTIINNFFOORRMMAATTIIOONNSpecial InstructionsThis manual supplies information for the installation,operation and servicing

IINNSSTTAALLLLAATTIIOONN ContinuedGas Manifold Pressure AdjustmentIMPORTANT: The gas valves are referenced tothe fan pressurized chamber by a hosecon

* Net Manifold Pressure equals the measured manifold pressure minus the chamberpressure. See Figure 31 to measure the Net Manifold Pressure.POOL HEATE

IINNSSTTAALLLLAATTIIOONN ContinuedNote: If the wing nut underneath the valve actuator body isloose, retighten.9. Reinstall the plastic actuator cover

Installation and Service Manual33Figure 34 - Heater is Within 15 Feet of Pool PipingFigure 35 - Heater is Beyond 15 Feet of Pool Piping

Commercial Pool Heaters34Figure 36 - Heaters are within 15 feet Perpendicular of Pool PipingFigure 37 - Heaters are Beyond 15 feet of Pool PipingIINNS

Installation and Service Manual35Relief ValveThis pool heater is supplied with a relief valve(s) sized inaccordance with ASME Boiler and Pressure Vess

Commercial Pool Heaters36IINNSSTTAALLLLAATTIIOONN ContinuedEnsure that the pump installed on the pool heater will supplyadequate flow to make the flo

Installation and Service Manual37Figure 39 - Control Panel Component Location DrawingTABLE–NTerminal Strip Connection OptionsThe scenarios shown in Fi

Commercial Pool Heaters38IINNSSTTAALLLLAATTIIOONN ContinuedFigure 40 (A-C) - Terminal Strip ConnectionOPERATIONFOR YOUR SAFETY READ BEFOREOPERATING

39Figure 42 – ON/OFF Switch8. Turn the manual gas cock clockwise  to the “OFF”position.9. Wait five (5) minutes to clear out any gas. If you smell

• do not try to light any appliance• do not touch any electrical switch; do not use any phone in your building• immediately call your gas supplier fro

Commercial Pool Heaters40OPERATIONContinuedFigure 44 – Vertical Pool Heater PipingFigure 45 – Horizontal Pool Heater PipingOPERATING TEMPERATURE CONTR

Installation and Service Manual41pool return sensor has been installed and connected, this willbe the temperature of the water coming from the pool.By

Commercial Pool Heaters42OPERATIONContinuedHOT SURFACE IGNITION SYSTEMHot Surface Igniter and Ignition ControlModuleThis unit has one ignition module

Installation and Service Manual43Access to Internal Control Panel The control panel is accessed by turning the knurled knoblocated at the bottom cente

Commercial Pool Heaters44OPERATIONContinuedOPERATION AND DIAGNOSTICINDICATORSThe control panel has up to six indicating and diagnostic lightsto show a

Installation and Service Manual45Chlorine residual is the chlorine remaining in the pool waterafter it is consumed in the process of destroying bacter

Commercial Pool Heaters46OPERATIONContinuedPipe Size RequirementsThe pipe sizing chart provides the minimum pipe size forcommon manifold piping to ens

Installation and Service Manual47High Water Temperature Limit ControlThis pool heater is equipped with a fixed setting, auto resethigh water temperatu

Commercial Pool Heaters48CLEANING ANDMAINTENANCE ContinuedBurner Removal and Cleaning1. Turn “OFF” the main power to the pool heater.2. Turn “OFF” th

Installation and Service Manual49Combustion Air FansBoth the 500,000 - 750,000 Btu/hr models and the 990,000 -2,070,000 Btu/hr models use a fan-assist

PPRROODDUUCCTTIIDDEENNTTIIFFIICCAATTIIOONNInstallation and Service Manual5Figure 1B - Optional Vertical Piping LoopFigure 1A - Standard Horizontal Pip

Commercial Pool Heaters50CLEANING ANDMAINTENANCE ContinuedIf the air pressure switch does not make within 60 secondsfrom the time the fans turn ON, th

Installation and Service Manual51ENERGY SAVINGRECOMMENDATIONS 1. Keep the pool covered when not in use. This will cutheating cost, reduce water evapo

Commercial Pool Heaters52GLOSSARYPOWER SUPPLY120VAC/60Hz/1PH power connects to black (line) and white(neutral) wires located within an electrical wiri

Installation and Service Manual53PREPURGE(Ignition Module Function)Once the ignition module sees a 24VAC input from its pressureswitch, it runs the bl

Commercial Pool Heaters54WIRING BOX CONNECTIONS

Installation and Service Manual55WIRING BOX CONNECTIONS

Commercial Pool Heaters56 LADDER DIAGRAM

Installation and Service Manual57 CONTROL BOX CONNECTIONS

Unit Start Up ChecklistEnsure that the location and installation of the equipment is inaccordance with the installation manual, all local installation

Advanced settings:By pressing the Select key in the View mode while viewing theBoiler ΔT reading (or the Supply Sensor temperature if thePool Supply

INSTALLATIONThis pool heater meets the safe lighting performance criteriawith the gas manifold and control assembly provided, asspecified in the ANSI

6/06-Printed in U.S.A.Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax 615-547-1000www.Lochinvar.com

FREEZE PROTECTIONAlthough this pool heater is CSA design certified for outdoorinstallations - such installations are not recommended in areaswhere the

IINNSSTTAALLLLAATTIIOONN Continued CAUTION: Some pleated filters are toorestrictive and could cause air flow problems.For convenience and flexibilit

Figure 7 – Outside Combustion Air - Two Openings2. Outside Combustion Air, Using DuctsYou can direct outside combustion air to this pool heater usingt