Thermo Pride MODEL OPA - Manual (Page 7)

All installations and services must be performed by qualified service personnel.
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: Waterproof type connectors must be used when connecting electrical power
and control wiring to the unit to prevent moisture from being drawn into the unit during
operation.
: Refrigerant is under pressure. Guard against refrigerant spraying into the
face or on skin. Always wear protective equipment, i.e. safety glasses or goggles and
gloves when working with refrigerant.
: Do not under any circumstances heat the refrigerant cylinder with a torch or
by any other means other than warm water. Excessive pressures generated in this
manner may weaken the refrigerant container and result in an explosion!
: To avoid injury from moving parts, or electrical shock, shut off the power to
the appliance before removing blower compartment door and servicing this appliance.
: When servicing controls, label all wires prior to disconnecting. Reconnect any
removed wires correctly. Wiring errors can cause improper and dangerous operation.
Dangerous operation can result in injury or damage.
: Do not use this appliance if any part has been under water. Immediately call
a qualified service technician to inspect the furnace and to replace any part of the
control system and any gas control that has been under water.
: The area around the appliance, including the top of the unit, must be kept
clear and free of combustible materials, gasoline, and other flammable vapors and
liquids.
: The appliance vent terminal may be hot. If the terminal is hot, allow it to cool
before touching it.
: Shut off unit and disconnect the power source before disassembling the unit.
: Never operate the appliance without clean air filters in place.
: This appliance requires air for combustion, ventilation, and cooling. Do not
block or obstruct air openings in the unit and the air space around the perimeter of the
unit.
: All local codes and ordinances take precedence with regard to selection and
installation of oil storage tank and oil supply (and return) lines. In the absence of local
codes, all tanks and lines must be selected and installed according to the instructions in
this manual and the Standard for the Installation of Oil-Burning Equipment, NFPA 31-
1997, or the latest edition.
: Turn off power to furnace. Before the oil piping system is placed into
service, it must have been leak tested by a qualified heating contractor.