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Installation and Operation Instructions
MODEL MT
SIZES 500 - 1825 MBTU/H
INSTALLATION AND
OPERATION INSTRUCTIONS
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in hot water boiler installation and maintenance. Improper installation and/or operation could
create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death.
Improper installation and/or operation will void the warranty. For indoor installations, as an additional
measure of safety, Pentair strongly recommends installation of suitable Carbon Monoxide detectors in
the vicinity of this appliance and in any adjacent occupied spaces.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• 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 from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed
by a qualified installer, service agency, or gas
supplier.
P/N 472643 Rev C 04/28/23
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
OUTDOOR
THESE INSTRUCTIONS ARE TO BE STORED IN
THE POCKET PROVIDED ON THE HEATER.
AVERTISSEMENT
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion
ou pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones dansle bâtiment où vous
vous trouvez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié ou
par le fournisseur de gaz.
Document 3172C
INDOOR
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Related Manuals for Pentair MEGATHERM MT
Summary of Contents for Pentair MEGATHERM MT
- Page 1 Improper installation and/or operation will void the warranty. For indoor installations, as an additional measure of safety, Pentair strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.
-
Page 2: Table Of Contents
Page 2 TABLE OF CONTENTS SECTION 1. SECTION 3. General Information Operation Introduction ............3 Controls - General ........10 Heater Identification ........3 Initial Start-Up ..........11 Primary/Secondary Pump and Piping .... 3 Safety Shutoff Component Checkout ..12 Certifications ..........3 Inlet Temperature and Engineering Assistance ......... -
Page 3: General Information
1.1 Introduction in Figure 1 is a breakdown of the model nomenclature. This manual provides information for the Pentair commercial pool heating boilers are available installation and operation of Pentair Model MT in two configurations: an indoor version and an outdoor pool heating boilers. -
Page 4: Installation Of Indoor Boilers
Page 4 clearances also apply to noncombustible materials Clearance Indoor Outdoor because the pool heating boiler requires air circulation from for proper operation. unobstructed The pool heating boiler should be mounted on a level surface. An integral base for an installation Water Conn. -
Page 5: Venting
2.2.2 Venting Always use double-wall or insulated vent pipe Pentair boilers have built-in draft diverters for (Type B or equivalent). In cold weather, uninsulated natural draft operation and must not be connected outside vents can chill the rising flue products blocking to any portion of a mechanical draft system under the natural draft action of the venting systems. -
Page 6: Common Venting System Test Procedure
National Fuel Gas Code, When the installation of a draft fan is necessary ANSI Z223.1 and/or CSA B149.1, Installation in connecting a venting system to a Pentair boiler, Codes. When resizing any portion of the common the installation should be engineered by competent venting system, the common venting system personnel following good engineering practices. -
Page 7: Installation Of Outdoor Boilers
Verify that the boiler is fitted for the proper piping system by closing its individual manual type of gas by checking the rating plate. Pentair gas shutoff valve during any pressure testing of boilers are normally equipped to operate below a the piping system at test pressures equal to or less 2000 foot (609.6m) altitude. -
Page 8: Electrical Wiring
Page 8 Distance from Gas Meter Boiler or Last Stage Regulator Caution Size 0-100' 100-200' 200-300' Since some leak test solutions (including soap 0-30.5m 30.5-61m 61-91.4m and water) may cause corrosion or stress 1½" 2" 2" cracking, the piping must be rinsed with water 1½"... -
Page 9: General Piping Instructions
MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 9 The pressure relief valve lever must be tripped at least once a year to insure that waterways are clean. When manually operating lever, water will discharge through the drain line. Precautions must be taken to avoid contact with hot water and water damage. -
Page 10: Automatic Chlorinators
Page 10 that it must be installed in the pump suction, or some other place where the chlorine solution flows through the heater, corrosion of the heater can occur. Excessive concentrations of chlorine caused by improper adjustment or failure of the chlorination equipment cause this corrosion. -
Page 11: Initial Start-Up
MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 11 Rating Plate Flow Pressure Switch Relief Ignition Control Valve Water Circulating Pump Power Manual (On/Off/Auto) Pilot Switch Valve Pump Time Manual Delay Relay Main Terminal Strip Gas Valve Safety Operating Control Valve... -
Page 12: Safety Shutoff Component Checkout
Page 12 the pool water before starting heater so that dirt and residue from construction will have been removed. Pilot Valve The filter may clog rapidly during this period, causing severe cycling of the heater. Before placing the heater in operation, be certain that the heater is filled with water and that all air is purged from the system. -
Page 13: Inlet Temperature And Temperature Rise Adjustment
MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 13 The manual reset high limit is factory preset to (43°C), either lock the valve handles, remove 150°F (66°C). Confirm this set point on the unit them, or prominently mark them to prevent and adjust if necessary. -
Page 14: Spring And Fall Operation Standby Service
Section 3.4. may freeze and be damaged. Spas are excellent for relaxation, body- Improper Use of Heater: The Pentair Pool conditioning and for arthritic and rheumatic Heating Boiler is not designed for continuous problems, but can be hazardous. The Consumer use as an "anti-freezing"... -
Page 15: Maintenance
Black carbon or green soot on a dirty heat the appearance of "sooting" tips, check for exchanger can, under certain conditions, be debris near orifices and call the Pentair Service ignited by a random spark or open flame. To Department. -
Page 16: Troubleshooting
Page 16 SECTION 5. The mineral content of the pool water increases every day. This is due to the natural evaporation Troubleshooting which removes only distilled water and leaves the For proper service and problem diagnosis of minerals behind. The regular addition of algicidal the heater and heater system, the following tools are and sanitizing chemicals also adds greatly to the required:... - Page 17 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 17 1. Symptom: heater is pounding, knocking or emitting steam from relief valve Possible Cause What to Do Low or no water fl ow Is the heater wired into the fi lter pump circuit so that the heater cannot fi re k i l l fi...
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Page 18: Parts Description And Order Numbers
Page 18 SECTION 6. Parts Description and Order Numbers... - Page 19 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 19 Figure 17. Parts Identification.
- Page 20 Page 20...
- Page 21 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 21...
- Page 22 Page 22...
- Page 23 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 23...
- Page 24 Page 24 When ordering tiles: Assembly number is for all tiles. Part numbers shown for the front of unit are the same for the rear tiles. Check dimensions of old tile as shown here to confirm part number. Figure 18. Tile Assemblies.
- Page 25 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 25 Figure 19. Outdoor Parts.
- Page 26 Page 26...
- Page 27 MEGATHERM ® COMMERCIAL POOL HEATER, 500 TO 1825 MBTU/H Page 27...
- Page 28 1620 HAWKINS AVE., SANFORD, NC 27330 • (919) 566-8000 10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • (805) 553-5000 All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos are the property of their respective owners.
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