Laars Mighty Therm AP (Sizes 2000-5000) - Installation, User Manual

Installation and Operation Instructions Document 3094EH2000000EInstallationand OperationInstructions forMighty ThermPool Heating BoilerModel APSizes 2

Page 10LAARS Heating Systems3A-3. Hi-Limit CheckoutAfter running the boiler for a long enough periodto bring the water temperature within the range of

Mighty Therm Commercial Pool Heating BoilerPage 113F. Time Clock OperationDuring the initial warm-up period, the boilermust run continuously. Therefor

Page 12LAARS Heating SystemsSECTION 4.Maintenance1. At start-up and every six (6) months thereafter,the pilot and main burner flame should beobserved

Mighty Therm Commercial Pool Heating BoilerPage 13SECTION 5.Troubleshooting and Analysis ofService Problems1. For proper service and problem diagnosis

Page 14LAARS Heating SystemsSECTION 6.Conversion of Model AP Pool BoilersFrom Indoor to Outdoor ModelsPlease read the following instructions withFigur

Mighty Therm Commercial Pool Heating BoilerPage 15Figure 12. Outdoor Parts. Referenced on page 14.

Page 16LAARS Heating SystemsSECTION 7.Parts Description and Order NumbersI=Indoor, E=Outdoor. Quantity is 1, unless otherwise noted.Key Size Size Size

Mighty Therm Commercial Pool Heating BoilerPage 17Figure 13. Parts Identification.*Indoor parts only**For tiles, see Figure 15.

Page 18LAARS Heating SystemsI=Indoor, E=Outdoor. Quantity is 1, unless otherwise noted.Key Size Size Size Size Size Size SizeNo. Description 2000 I 24

Mighty Therm Commercial Pool Heating BoilerPage 19Figure 14. Built-in Automatic Control Valve.Rod retainer101337Spring shaftS00196SpringSpring guideS0

Page 2LAARS Heating SystemsTABLE OF CONTENTSSECTION 1.General Information1A. Introduction... 3SECTION

Figure 15. Tile Assembly.H2000000E800.900.9276 • Fax 800.559.1583 (Customer Service, Service Advisors)20 Industrial Way, Rochester, NH 03867 • 603.335

Mighty Therm Commercial Pool Heating BoilerPage 3SECTION 1.General InformationIMPORTANT WARNING:The Model AP commercial pool boilers must beused with

Page 4LAARS Heating SystemsAll boilers must be installed on a non-combustible floor. Under no circumstances can boilersbe installed on carpeting.The N

Mighty Therm Commercial Pool Heating BoilerPage 52B-2. Venting1. Laars boilers have built-in draft diverters fornatural draft operation and must not b

Page 6LAARS Heating Systems4. Liquified petroleum is heavier than air.Therefore, the pool boiler should not be installedin pits or other locations whe

Mighty Therm Commercial Pool Heating BoilerPage 7Arrangement of gas train components for on-offfiring are shown schematically in the Gas PipingDiagram

Page 8LAARS Heating SystemsTherefore, the temperature difference betweenthe inlet and out pipes will be so small as to bedifficult to sense by touchin

Mighty Therm Commercial Pool Heating BoilerPage 9pool. If this condition exists, follow this procedure toadjust the switch:1. With the boiler on, the