Laars Mighty Therm PH 1430 - 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

SECTION 1. General Information

1 A. Introduction

This manual provides installation and operation information for Laars hydronic boilers.

1 B. Boiler Identification

Explains how to identify boiler models using the rating plate information.

1 C. Flow Requirements

Details the necessity of continuous flow for proper operation of low volume hydronic boilers.

1 D. Variable Water Flow Systems

Discusses systems with reduced flow, requiring staged or modulated fire for stable operation.

1 E. Warning Regarding Chilled Water Systems

Warns against allowing chilled water into the boiler, which can cause condensation and damage.

1 F. Freeze Protection

SECTION 2. Installation

2 A. Boiler Placement

2 B. Installation of Indoor Boilers

2 B-1. Combustion Air Supply

2 B-2. Venting

2 C. Installation of Outdoor Boilers

2 D. Gas Supply and Piping

2 E. Electrical Wiring

2 F. Water Piping of System

2 G. Filling Fully-Connected System

SECTION 3. Operation

3 A. Controls - General

3 B. Initial Start-Up

Guides the user through the initial start-up procedures, including safety checks.

3 C. To Start Up System

3 D. To Turn Off Boiler

3 E. To Shut Down System

SECTION 4. Maintenance

SECTION 5. Troubleshooting and Analysis of Service Problems

Laars Mighty Therm PH 1430 Specifications

General

Brand	Laars
Model	Mighty Therm PH 1430
Category	Boiler
Language	English