MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Page 8 of 146 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0087_0F
07/13/15 Phone: 800-526-0288 GF-143
Failure to follow the instructions indicated in this manual, which is supplied with the boiler,
could cause injury to persons, animals or damage to property. The manufacturer shall not
be held liable for any such injury and/or damage.
1.4 Safety Warnings
WARNING!
• Children must be supervised so they do not play on, around, or
with the appliance.
• The installation, adjustment, and servicing of this appliance
must be carried out by a competent person and installed in
accordance with the current standards and regulations. Failure
to correctly install this appliance could cause injury to persons,
animals or damage to property. The manufacturer shall not be
held liable for any injury and/or damage.
• Servicing or repairs of the appliance must be carried out by
AERCO authorized service technicians; AERCO recommends
drawing up a service contract. Incomplete, inappropriate, or
irregular servicing could compromise the safe operation of the
appliance, and could cause injury to persons, animals or
damage to property for which AERCO shall not be held liable.
1.5 Modifications To Parts Connected To The Appliance
Do not carry out any modifications to the following parts:
• The boiler
• To the gas, air, water supply pipes and electrical power
• To the flue pipe, safety relief valve and its drainage pipe
• To the constructive components which influence the appliance’s safe operation
WARNING!
When tightening or loosening the screw pipe connections, use only
properly sized wrenches. The improper use of inadequate
equipment can cause damage (for example, water or gas leakages)
to the equipment.
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