14
pre-operation
• Floors and ceilings must be made of fireproof materials in the place
where the heater is operated.
• The air inlet and outlet must never be blocked for any reason.
• Install the heater on a flat, level floor in a steady position.
Pre-Operation
GENERAl INSTRUCTIONS
1. THE INSTALLATION OF THE EQUIPMENT SHALL BE IN
ACCORDANCE WITH THE REGULATION OF AUTHORITIES
HAVING JURISDICTION AND CSA B139.
2. The heater must be operated only by properly trained personnel. The
manufacturer’s instructions must be followed.
3. The heater must be installed and operated so that people are not
exposed to dangers deriving from exhaust gases, from the hot air flow
and in such a way that no fire risks exist.
4. It is forbidden to install the heater in the surroundings of flammable
materials, combustible products, or in explosive atmospheres.
5. When an indirect-fired heater connected to a flue pipe is used in a
closed room, provide a minimum opening area of 1 square foot per US
gallon capacity at the unit level.
6. When an indirect-fired heater not connected to a flue pipe - is used
in a closed room, provide a minimum opening area of 3 square feet
per US gallon capacity at the unit level and a continuous, natural air
circulation through windows and doors.
7. For the use of the heater the general and special fire safety regulations
in force in all fields of applications must be followed. In any case the
following minimum safety clearances from flammable materials or
objects in the surroundings of the heater must be ensured:
Minimum clearance from Combustibles:
HW125RW
HW300RW
Top
5 ft
5 ft
Sides
2 ft
2 ft
Flue Pipe
3 ft
3 ft
Air Inlet
2 ft
2 ft
Air Outlet
10 ft
10 ft
