Laars Mighty Therm PH 1200 - User Manual

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.
H0117400E
Installation and Operation
Instructions for
Mighty Therm
Hydronic Boilers
Models HH and PH
Sizes 500-1825
These instructions are to be stored in the pocket provided on the boiler
Installation and Operation Instructions Document 1049E

Summary

General Information

1 C. Flow Requirements

Details the need for continuous flow and pressure for proper boiler operation.

1 D. Variable Water Flow Systems

Discusses challenges with variable flow and recommends primary-secondary pumping.

1 E. Warning Regarding Chilled Water Systems

Warns against allowing chilled water to enter the boiler.

1 F. Freeze Protection

System Pressure Requirements

Installation

2 A. Boiler Placement

Details requirements for boiler location, clearances, and mounting surfaces.

2 B. Installation of Indoor Boilers

2 C. Installation of Outdoor Boilers

2 D. Gas Supply and Piping

Outlines procedures for connecting the gas supply and piping to the boiler.

2 E. Electrical Wiring

Details electrical connection requirements and safety precautions.

2 F. Water Piping of System

Operation

3 A. Controls - General

3 B. Initial Start-Up

Details the critical steps for safely starting the boiler for the first time.

3 C. To Start Up System

Outlines the procedure for bringing the boiler and system into operation.

3 E. To Shut Down System

Maintenance

Burner and Heat Exchanger Checks

Air and Vent System Inspection

Control System Checks

Periodic checks of essential boiler controls like low water cutoffs.

Troubleshooting and Analysis of Service Problems

Boiler Will Not Fire

Common causes and solutions for the boiler failing to ignite or operate.

Pressure Relief Valves Leaking

Boiler Pounding, Knocking, or Emitting Steam

Soot in Flue Ways or Noxious Fumes

Identifies causes of soot and fumes, indicating bad combustion.

Water Dripping in Firebox

Laars Mighty Therm PH 1200 Specifications

General

Brand	Laars
Model	Mighty Therm PH 1200
Category	Boiler
Language	English