Chapter 1: Safety Precautions - Watts AERCO EXT Installation, Operation & Maintenance Manual

Modulex EXT Commercial Series

CHAPTER 1: SAFETY PRECAUTIONS

CHAPTER 1: SAFETY PRECAUTIONS
The following defined symbols are used throughout this manual to notify the reader of potential
hazards of varying risk levels.
D A N G E R !
Indicates an imminent hazard which if not avoided WILL result in death or serious injury.
W A R N I N G !
Indicates a potentially hazard which if not avoided MAY result in death or serious injury.
C A U T I O N !
Indicates a potential hazardous situation which if not avoided COULD result in minor or moderate
injury. Also may caution against unsafe practices.
Note that all hazard notifications and notes are presented enclosed in a rectangle as shown below,
in order to differentiate them from the main text.
It is of utmost importance to observe all hazard notifications presented in this manual to avoid
injury, death, and damage to the equipment. Failure to properly heed safety hazard notifications
may result in the voiding of applicable warranties.
W A R N I N G !
Never use flames to detect gas leaks!
What to do if you smell gas:
• Do NOT try to light or turn on any appliance.
• Do NOT touch any electric switch or open switched doors.
• Do NOT use any phone or intercom device in your building.
• Do NOT touch metal doorknobs or any grounded device or surface without using insulated
gloves or other insulated material if you suspect static charge buildup.
• Immediately call your gas supplier from a neighbor's phone or, if you are outside, your cell
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
W A R N I N G !
This boiler has been built for installation in the country indicated on the technical data plate.
Installation in any other country be dangerous to people, animals and property.
NOTE: Carefully read the information on the warranty certificate attached to the boiler.
Important – For Massachusetts Installations
Boiler Installations within the Commonwealth of Massachusetts must conform to the following requirements:
•
Boiler must be installed by a plumber or a gas fitter who is licensed within the Commonwealth of
Massachusetts.
•
Prior to unit operation, the complete gas train and all connections must be leak tested using a non-
corrosive soap.
•
If a glycol solution is used as anti-freeze protection, a backflow preventer must be installed upstream of
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