Pentair MASTERTEMP 125 Installation And User Manual page 8

Section 2. Warning and Safety Instructions
8
SAFETY INFORMATION,
WARNING — Risk of fire or explosion from incorrect fuel use or faulty fuel conversion. Do not try to run a
heater set up for natural gas on propane gas or vice versa. Only qualified service technicians should
attempt to convert heater from one fuel to the other. Do not attempt to alter the rated input or type of
gas by changing the orifice. If it is necessary to convert to a different type of gas, consult your Pentair
dealer. Serious malfunction of the burner can occur which may result in loss of life. Any additions,
changes, or conversions required in order for the appliance to satisfactorily meet the application needs
must be made by a Pentair dealer or other qualified agency using factory specified and approved
parts. The heater is available for use with natural gas or LP (propane) gas only. It is not designed to
operate with any other fuels. Refer to the nameplate for the type of gas the heater is equipped to use.
WARNING — Risk of fire or explosion from flammable vapors. Do not store gasoline, cleaning fluids, varnishes,
paints, or other volatile flammable liquids near heater or in the same room with heater.
WARNING — Risk of explosion if unit is installed near propane gas storage. Propane (LP) gas is heavier than
air. Consult local codes and fire protection authorities about specific installation requirements and
restrictions. Locate the heater away from propane gas storage and filling equipment as specified by
the Standard for the Storage and Handling of Liquefied Petroleum Gases, CAN/CSA B149.2 (latest
edition) or ANSI/NFPA 58 (latest edition).
WARNING — Risk of fire, carbon monoxide poisoning, or asphyxiation if exhaust venting system leaks. Only
qualified service technicians should attempt to service the heater, as leakage of exhaust products or
flammable gas may result from incorrect servicing.
WARNING — Risk of asphyxiation if exhaust is not correctly vented. Follow venting instructions exactly
when installing heater. Do not use a draft hood with this heater, as the exhaust is under pressure
from the burner blower and a draft hood will allow exhaust fumes to blow into the room housing the
heater. The heater is supplied with an integral venting system for outdoor installation. A vent conversion
kit
Canada) or indoors (U.S.). Use the specified venting, and only the specified venting, when heater is
installed in an enclosure or indoors. In Canada, this pool heater can only be installed outdoors or in
an enclosure that is not normally occupied and has no openings directly into occupied areas. See
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CAUTION — Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper
and dangerous operation. Wiring errors can also destroy the control board.
MASTERTEMP ® 125 Pool and Spa Heater Installation and User's Guide
(cont'd.)
before putting the heater into operation.
(See Page 23 for Part Numbers for Conversion Kits) is available for installations in enclosures
for enclosure venting requirements.
120 or 240 Volt, 60 Hz., Single Phase power only.
heater.
Rev. B 8/14