AERCO Modulex General Manual - Manual (Page 5)

INSTALLATION, OPERATION & MAINTENANCE
iii
SAFETY SYMBOLS
The following defined symbols are used throughout this manual to notify the reader
of potential hazards of varying risk levels.
INDICATES AN IMMINENTLY HAZARDOUS SITUATION, WHICH IF NOT AVOIDED,
WILL RESULT IN DEATH OR SERIOUS INJURY.
INDICATES A POTENTIALLY HAZARDOUS SITUATION, WHICH IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
INDICATES A POTENTIAL HAZARDOUS SITUATION, WHICH IF NOT AVOIDED,
MAY RESULT IN MINOR OR MODERATE INJURY. IT MAY ALSO BE USED TO
ALERT AGAINST UNSAFE PRACTICES.
READ ALL INSTRUCTIONS BEFORE INSTALLING.
The following WARNINGS appear here and in one or more Chapters of
this manual.
• KEEP THE UNIT AREA CLEAR AND FREE FROM ALL COMBUSTIBLE MATERIALS AND
FLAMMABLE VAPORS OR LIQUIDS.
• NEVER USE MATCHES, CANDLES, FLAMES OR OTHER SOURCES OF IGNITION TO CHECK
FOR GAS LEAKS.
• DO NOT ATTEMPT TO DRY FIRE THE BOILER. STARTING THE UNIT WITHOUT A FULL
WATER LEVEL CAN SERIOUSLY DAMAGE THE UNIT AND MAY RESULT IN INJURY TO
PERSONNEL OR PROPERTY DAMAGE. THIS SITUATION WILL VOID ANY WARRANTY.
• ELECTRICAL VOLTAGES IN THIS SYSTEM MAY INCLUDE 120 AND 24 VOLTS AC. IT MUST
BE SERVICED BY TECHNICALLY COMPETENT SERVICE TECHNICIANS.
• ELECTRICAL POWER MUST BE REMOVED PRIOR TO PERFORMING WIRE REMOVAL OR
OTHER TEST PROCEDURES THAT CAN RESULT IN ELECTRICAL SHOCK.
• TO AVOID PERSONAL INJURY, OBSERVE THE FOLLOWING WARNINGS:
• DISCONNECT THE AC SUPPLY BY TURNING OFF THE SERVICE SWITCH AND AC SUPPLY
CIRCUIT BREAKER
• SHUT OFF THE GAS SUPPLY AT THE MANUAL SHUT-OFF VALVE
• PROVIDED WITH THE UNIT
• ALLOW THE UNIT TO COOL TO A SAFE TEMPERATURE TO PREVENT
• SEVERE
BURNS.