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Installation and Operation
Instructions for
MegaTherm
Pool Heating Boiler
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.
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 A - 05/22/06
TM
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Model MT
Sizes 500 - 1825
IMPORTANT: Store these instructions 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.
®
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Table of Contents
Related Manuals for Pentair MT Sizes 500
Summary of Contents for Pentair MT Sizes 500
- Page 1 Installation and Operation Instructions for MegaTherm Pool Heating Boiler 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.
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Page 2: Table Of Contents
Temperature Sensor Placement and Installation ... 10 Automatic Chlorinators ... 10 Pentair Technical Support Web sites: visit www.pentairpool.com and www.staritepool.com Pentair Water Commercial Pool and Spa TABLE OF CONTENTS SECTION 3. Operation Controls - General ... 11 Initial Start-Up ... 11 Safety Shutoff Component Checkout ... -
Page 3: General Information
It is strongly recommended that all application and installation procedures be reviewed completely before proceeding with the installation. Consult Pentair Commercial Pool and Spa, or your local sales representative, with any problems or questions regarding this equipment. Experience has shown that most problems are caused by improper installation, not system design. -
Page 4: Installation
(6.5 sq. cm) per 4,000 BTU/hr input of the total input rating of all appliances in the enclosed area. See Table 2 for recommended air supply for each model. An Pentair Water Commercial Pool and Spa Clearance Indoor from Water Conn. -
Page 5: Venting
MegaTherm Commercial Pool Heating Boiler Figure 4. Typical Boiler Installation on Roof Using 4x4 Stringer. Base must extend out min. 12" (305mm) on all sides of heater frame. Concrete blocks or tile min. 7" (178mm) high with 3" (76mm) min. air openings. Blocks must provide solid base and be braced so they cannot slip out of place. -
Page 6: Common Venting System Test Procedure
Follow the lighting instructions for the unit. Adjust the thermostat so the appliance will operate continuously. Pentair Water Commercial Pool and Spa Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe. -
Page 7: Installation Of Outdoor Boilers
MegaTherm Commercial Pool Heating Boiler flamme d’une chandelle ou la fumée d’une cigarette, d’une cigare ou d’une pipe. Une fois qu’il a été déterminé, selon la méthode indiquée ci-dessus, que chaque appareil raccordé au systéme d’évacuation est mis à l’air libre de façon adéquate. -
Page 8: Electrical Wiring
HP pump motors. Consult the National Electrical Fitting Code or the Canadian Electrical Code regarding branch circuit requirements for equipment with these motors. 3" (76mm) Min. The boilers should be wired exactly as shown in the wiring diagram. Pentair Water Commercial Pool and Spa Caution WARNING... -
Page 9: General Piping Instructions
MegaTherm Commercial Pool Heating Boiler Figure 9. Pressure Relief Valve Location. IMPORTANT NOTE: The pool filter pump and boiler must be electrically interlocked so the boiler cannot come on unless the pump is running and there is full flow in the filter piping where the boiler is connected. -
Page 10: Temperature Sensor Placement And Installation
Page 10 Figure 10. Heater Piping Arrangement. Pentair Water Commercial Pool and Spa 2.8 Temperature Sensor Placement and Installation A temperature sensor with 15 feet (5m) of cable and an immersion well assembly are supplied with the boiler. These must be installed in the field. Refer to Figures 10 through 11. -
Page 11: Operation
MegaTherm Commercial Pool Heating Boiler SECTION 3. Operation 3.1 Controls - General (see Figures 12 and 13) Electronic Ignition Controls: Intermittent Ignition: Pilots are automatically lit when the operating control calls for heat (Systems #4 and #9). The unit performs its own safety check and opens the main valves only after the pilot is proven to be lit. -
Page 12: Safety Shutoff Component Checkout
If the pilot flame fails for any reason, the main valve is shut off within one second Pentair Water Commercial Pool and Spa and the pilot spark ignition is initiated until the pilot flame has been reestablished. This sequence should be... -
Page 13: Heater Shut Down
MegaTherm Commercial Pool Heating Boiler If the inlet temperature is LESS THAN 100°F: With the bypass valve “A” fully open, throttle (turn down) outlet valve “B” slightly. Observe the inlet thermometer for 5 minutes to see where the inlet temperature stabilizes. If it remains under 100°F, throttle outlet valve “B”... -
Page 14: Winter Operation Complete Shutdown
When the time clock stops are replaced, be sure to allow the filter pump and the heater to stay on long enough to keep the pool up to the desired temperature. Pentair Water Commercial Pool and Spa 3.9 Therapeutic Pools (Spas) Therapeutic pools or "spa" pools are usually... -
Page 15: Maintenance
Main Gas Valve for proper pilot flame pattern. If flame has the appearance of "sooting" tips, check for debris near orifices and call the Pentair Water commercial Pool and Spa technical support (see page 2). Inspect the venting system for obstruction, leakage and corrosion at least once each year. -
Page 16: Troubleshooting
Another important safety precaution - always keep the pH of the pool water between 7.3 and Pentair Water Commercial Pool and Spa Figure 16. Main Burner Flame Pattern. 7.7. This will add years to the life of the pool finish, filter system and heater. - Page 17 MegaTherm Commercial Pool Heating Boiler SECTION 6. PARTS 1. Symptom: heater is pounding, knocking or emitting steam from relief valve Possible Cause Low or no water flow (most likely). Debris from system piping is blocking tubes. C. Scale has formed in tubes from high mineral content.
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Page 18: Parts Description And Order Numbers
Pentair Water Commercial Pool and Spa Page 18 SECTION 6. Parts Description and Order Numbers... - Page 19 MegaTherm Commercial Pool Heating Boiler Page 19 Figure 17. Parts Identification.
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- Page 24 Page 24 Figure 18. Tile Assemblies. Pentair Water Commercial Pool and Spa 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...
- Page 25 MegaTherm Commercial Pool Heating Boiler Page 25 Figure 19. Outdoor Parts.
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- Page 32 Trademarks and disclaimers MegaTherm and the Pentair Commercial Pool and Spa logo are trademarks of Pentair Water Pool and Spa, Inc. Other trade- marks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.