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Installation and Operation Instructions
Installation and Operation
Instructions for
Mighty Therm
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.
Model AP
Sizes 500 - 1825
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 3006R
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Summary of Contents for Mighty Therm AP
- Page 1 Installation and Operation Instructions for Mighty Therm Pool Heating Boiler Model AP Sizes 500 - 1825 These instructions are to be stored in the pocket provided on the heater. FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler installation and maintenance.
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Page 2: Table Of Contents
LAARS HEATING SYSTEMS Page 2 TABLE OF CONTENTS SECTION 1. SECTION 3. General Information Operation Introduction ........... 3 Controls - General ........11 Heater Identification ........3 Initial Start-Up ..........12 Primary/Secondary Pump and Piping ... 3 Safety Shutoff Component Checkout ..12 Certifications .......... -
Page 3: General Information
Laars This manual provides information for the warranty. If field conditions require such installation and operation of Laars Model AP pool modifications, consult factory. heating boilers. It is strongly recommended that all application and installation procedures be reviewed 1.2 Heater Identification... -
Page 4: Installation
LAARS HEATING SYSTEMS Page 4 SECTION 2. Clearance Indoor Outdoor Installation from 2.1 Boiler Placement unobstructed The pool heating boiler must be placed to Water Conn. side provide specific clearances on all sides for Pump side maintenance and inspections. There must also be minimum distances maintained from combustible Front Alcove*... -
Page 5: Venting
Mighty Therm Commercial Pool Heating Boiler Page 5 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0... -
Page 6: Common Venting System Test Procedure
LAARS HEATING SYSTEMS Page 6 Always use double-wall or insulated vent pipe Test for spillage at the draft hood relief opening (Type B or equivalent). In cold weather, uninsulated after 5 minutes of main burner operation. Use outside vents can chill the rising flue products the flame of a match or candle, or smoke from a blocking the natural draft action of the venting cigarette, cigar, or pipe. -
Page 7: Installation Of Outdoor Boilers
Mighty Therm Commercial Pool Heating Boiler Page 7 flamme d’une chandelle ou la fumée d’une Boiler Each Opening* cigarette, d’une cigare ou d’une pipe. Size square inches square cm Une fois qu’il a été déterminé, selon la méthode 806.5 indiquée ci-dessus, que chaque appareil raccordé... -
Page 8: Electrical Wiring
Low gas pressure could be an indication of an Wiring diagrams are included in the information undersized gas meter and /or obstructed gas supply packet provided with each unit. line. All Model AP pool heating boilers need 115V 60Hz supply voltage unless specifically ordered Gas Supply otherwise. Inlet... -
Page 9: General Piping Instructions
Mighty Therm Commercial Pool Heating Boiler Page 9 Since heater outlet temperatures can reach 150°F (66°C) in some cases, copper or CPVC are recommended materials for heater connection piping. PVC material may be used for the inlet valve and the piping upstream of it. -
Page 10: Temperature Sensor Placement And Installation
LAARS HEATING SYSTEMS Page 10 Suggested By-Pass Loop Fitting Item Description Material 2½" Elbow (See Note) 2½" S-80 2½" x 2" Reducing Bushing (See Note) CPVC 2½" Tee (All Sizes) Copper is optional 2½" Tee (See Note) A, B, 2½" Ball Valve (See Note) C, D Note: 2"... -
Page 11: Operation
An electronic temperature control is provided on through the heater, corrosion of the heater can model AP boilers to control the pool water occur. Excessive concentrations of chlorine temperature. The temperature sensor (thermistor) -
Page 12: Initial Start-Up
LAARS HEATING SYSTEMS Page 12 through the secondary loop will shut down the then release. Once the pilot is lit, turn burners. power switch to “AUTO PUMP.” Low Water Cut Off (optional): Wait 5 minutes and turn up operating The low water cut off automatically shuts off control until heater fires (for intermittent boiler whenever water level in the heat ignition system, the pilot will be ignited... -
Page 13: Inlet Temperature And Temperature Rise Adjustment
Mighty Therm Commercial Pool Heating Boiler Page 13 Flow Switch: See attached vendor literature. Manual Reset Flow Low Water Low Water Cutoff (optional): See attached High Limit Switch Cutoff (Optional) vendor literature. 3.4 Inlet Temperature and Temperature Rise Adjustment For proper operation the bypass and outlet valves must be adjusted to obtain the correct heater temperature rise and the correct inlet temperature. -
Page 14: Winter Operation Complete Shutdown
PROCEDURE! LAARS HEATING SYSTEMS Page 14 Remove all time clock stops and permit the Heater Size Heater Temp. Rise Inlet Temp Difference* heater to raise pool temperature to 70°F (21°C) or Indoor Outdoor INLET POOL above in one continuous operation. 500 E 14°F 8°C... -
Page 15: Maintenance
Mighty Therm Commercial Pool Heating Boiler Page 15 Persons with a medical history of heart disease, circulatory problems, diabetes or Pilot Valve blood pressure problems should obtain their physician's advice before using spas or hot tubs. Persons taking medications which induce... -
Page 16: Troubleshooting
LAARS HEATING SYSTEMS Page 16 Outdoor Models: Remove vent top assembly, rear upper jacket, flue collector rear panel and heat exchanger baffles. To remove all burners: It is usually more convenient to remove the burner tray assembly. Disconnect sensor wire, ignition cable (or thermocouple generator) and pilot gas line. - Page 17 Mighty Therm Commercial Pool Heating Boiler Page 17 1. Symptom: heater is pounding, knocking or emitting steam from relief valve Possible Cause What to Do Low or no water flow Is the heater wired into the filter pump circuit so that the heater cannot fire (most likely).
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Page 18: Parts Description And Order Numbers
LAARS HEATING SYSTEMS Page 18 SECTION 6. Parts Description and Order Numbers... - Page 19 Mighty Therm Commercial Pool Heating Boiler Page 19 Figure 18. Parts Identification.
- Page 20 LAARS HEATING SYSTEMS Page 20...
- Page 21 Mighty Therm Commercial Pool Heating Boiler Page 21...
- Page 22 LAARS HEATING SYSTEMS Page 22...
- Page 23 Mighty Therm Commercial Pool Heating Boiler Page 23...
- Page 24 LAARS HEATING SYSTEMS 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 19.
- Page 25 Mighty Therm Commercial Pool Heating Boiler Page 25 Figure 20. Outdoor Parts.
- Page 26 LAARS HEATING SYSTEMS Page 26...
- Page 27 Mighty Therm Commercial Pool Heating Boiler Page 27...
- Page 28 Waterpik Technologies, Inc. 6000 Condor Drive, Moorpark, CA 93021 • 805.529.2000 • FAX 805.529.5934 20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • FAX 603.335.3355 480 S. Service Road West, Oakville, Ontario, Canada L6K 2H4 • 905.844.8233 • FAX 905.844.2635 www.laars.com Litho in U.S.A.
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