Laars Mighty Therm PH (Sizes 500-1825) - Installation, O User Manual

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,qualified in hot water boiler installation and maint

LAARS Heating SystemsPage 10shutoff valve must also be provided for serviceconvenience and safety. Check the local codes.4. The boiler and its individ

Mighty Therm Hydronic BoilerPage 113. The pump and boiler must be electricallyinterlocked so the boiler cannot come on unlessthe pump is running.4. Al

LAARS Heating SystemsPage 1213. Check gauge for correct water pressure and alsocheck water level in system. If the heightindicated above the boiler in

Mighty Therm Hydronic BoilerPage 134. Flow Switch:Standard on all models: Models HH andPH, the switch is mounted in the outlet“tee” connection. The fl

LAARS Heating SystemsPage 14Figure 16. Main Burner Flame Pattern.f. Open manual pilot valve. Turn on mainelectrical switch.g. Set temperature controll

Mighty Therm Hydronic BoilerPage 15a. If cleaning is required, shut off allelectrical and gas supply to the heater.b. To expose the heat exchanger:Ind

LAARS Heating SystemsPage 164. PRESSURE RELIEF VALVES LEAKINGINTERMITTENTLY OR STEADILY.3. BOILER WILL NOT FIRE. Possible Cause What T

Mighty Therm Hydronic BoilerPage 175. BOILER IS POUNDING, KNOCKING OR EMITTINGSTEAM FROM RELIEF VALVES. Possible Cause What To DoA. Low o

LAARS Heating SystemsPage 18Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 18251 Top Pane

Mighty Therm Hydronic BoilerPage 19Figure 19. Parts Identification.NOTE:Temperature Control Wells -Inlet/Outlet Header1. Firing Mode L, K, & C -2

LAARS Heating SystemsPage 2TABLE OF CONTENTSSECTION 1.General Information1A. Introduction ... 31B. Boi

LAARS Heating SystemsPage 20Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 182521 Tile, H

Mighty Therm Hydronic BoilerPage 21Figure 20. Tile Assemblies.

LAARS Heating SystemsPage 22Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 182543 Ignitio

Mighty Therm Hydronic BoilerPage 23Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 182564

LAARS Heating SystemsPage 24Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 182589 Plug, 3

Mighty Therm Hydronic BoilerPage 25Figure 21. Outdoor Parts.

LAARS Heating SystemsPage 26Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 18251 Top Pane

Mighty Therm Hydronic BoilerPage 27Key Description Model Model Model Model Model Model Model Model ModelNo 500 600 715 850 1010 1200 1430 1670 1825See

Pump Rotating Sections and Repair PartsElectrical OptionsAutomatic Reset Temp. Limit Switch...

Mighty Therm Hydronic BoilerPage 3SECTION 1.General Information1A. IntroductionThis manual provides information for theinstallation and operation of L

LAARS Heating SystemsPage 4Design Temperature Rise Across The Boiler20°F 11°C 25°F 14°C 30°F 17°C 35°F 19°CIndoor Outdoor Flow H/L Flow H/L Fl

Mighty Therm Hydronic BoilerPage 51E. Warning Regarding ChilledWater SystemsWhen a boiler is connected to an airconditioning system where the same wat

LAARS Heating SystemsPage 6SECTION 2.Installation2A. Boiler PlacementThe boiler must be placed to provide specificclearances on all sides for maintena

Mighty Therm Hydronic BoilerPage 7(b.) In Canada, consult local building and safetycodes or, in the absence of such requirements,follow CGA requiremen

LAARS Heating SystemsPage 8Figure 9. Alcove Installation.4. If a blower or fan is used to supply air to theheater room, the installer should make sure

Mighty Therm Hydronic BoilerPage 9other appliances remaining connected to thecommon venting system are not in operation.(a) Seal any unused openings i