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

H0147600DInstallation and Operation Instructions Document 1065DFOR YOUR SAFETY: This product must be installed and serviced by a professional service

LAARS Heating SystemsPage 102H. Filling Fully-Connected System1. Close all bleeding devices and open make-upwater valve. Allow system to fill slowly.2

Mighty Therm Hydronic BoilerPage 113. Once the pilots are lit and have been establishedfor five minutes, the flame failure response timeshould be chec

LAARS Heating SystemsPage 12Top ViewView On Arrow ABurnerC/L 4th PortAObservation HoleBurner3C. To Turn Off Boiler1. Turn off main electrical switch.2

Mighty Therm Hydronic BoilerPage 13With a wire brush, remove soot and loose scalefrom the heat exchanger. Do not use water orcompressed air for cleani

LAARS Heating SystemsPage 144. Boiler is pounding, Knocking or emitting steamfrom relief valves.Possible Cause What To DoA. Low or no water flow. A.Th

Mighty Therm Hydronic BoilerPage 157. Water dripping in firebox. Possible Cause What To DoA. If boiler is use

LAARS Heating SystemsPage 16Figure 13. Outdoor Parts Identification.

Mighty Therm Hydronic BoilerPage 175. Remove outer screw from upper end panel atjunction with lower end panel.6. Remove and disconnect all probes and

LAARS Heating SystemsPage 18Key Size Size Size Size Size Size SizeNo. Description 2000 I 2450 I 3050 I 3500 I 4050 I 4500 I 5000 I2200 E 2800 E 3200 E

Mighty Therm Hydronic BoilerPage 19Figure 14. Parts Identification.

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

LAARS Heating SystemsPage 20Key Size Size Size Size Size Size SizeNo. Description 2000 I 2450 I 3050 I 3500 I 4050 I 4500 I 5000 I2200 E 2800 E 3200 E

Mighty Therm Hydronic BoilerPage 21Figure 15. Tile Assembly.

LAARS Heating SystemsPage 22Key Size Size Size Size Size Size SizeNo. Description 2000 I 2450 I 3050 I 3500 I 4050 I 4500 I 5000 I2200 E 2800 E 3200 E

Mighty Therm Hydronic BoilerPage 23

H0147600D800.900.9276 • Fax 800.559.1583 (Customer Service, Service Advisors)20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.33551

Mighty Therm Hydronic BoilerPage 3SECTION 1.General Information IMPORTANT WARNING:The Model HH hydronic boiler must be installed inaccordance with the

LAARS Heating SystemsPage 41B. Flow RequirementsAll low volume hydronic boilers must havecontinuous flow through the heat exchanger whenfiring, for pr

Mighty Therm Hydronic BoilerPage 51C-1. A Special Note About 3-WayWater Valves3-way water valves (2 position or proportional)are sometimes used to div

LAARS Heating SystemsPage 6NOTE: In Canada (Table 3 does not apply)consult local building and safety codes or, in theabsence of such requirements, fo

Mighty Therm Hydronic BoilerPage 7WindowOr GrillIndoorRoomWRONG5. Always use double-wall or insulated vent pipe(Type B or equivalent). In cold weather

LAARS Heating SystemsPage 8wind conditions are possible, locate the boilerat least three (3) feet from the structures.3. Never install the boiler unde

Mighty Therm Hydronic BoilerPage 98. Before operating the boiler, the complete gassupply system and all connections must be testedfor leaks using a so