Toyotomi BS-35(F) - Manual (Page 21)

5
SECTION C:
INSTALLATION
WARNING:
This unit must be installed in accordance with these instructions, local codes,
ordinance and/or in the absence of local codes, the latest edition of the national
fire protection association code.
WARNING: Check and comply with all state and local codes that may apply to water
heater(s) before beginning the installation.
This unit should be installed by a licensed, authorized person(s) due to the
necessity of making electrical, water and fuel connections.
SELECTING A LOCATION
Select a place to install the water heater where water pipes, electric supply, and surrounding
surfaces will be at safe and noise prevention distances.
1. Select a place which is free of moisture, water spills, pools or snow.
2. Select a place which draining can be done easily.
3. Select a place which the fuel tank can be installed safely.
4. Select a place which is free of combustible substances.
5. The surrounding walls should be finished with noncombustible materials (concrete block,
mortar, on plaster are allowable).
6. The floor on which the water heater is installed must prevent intensive vibrations or shock
and resist must be strong enough to bear the weight of the water heater.
7. Select a place where proper maintenance and control can be provided for the unit after
installation.
8. Select a place sheltered from weather.
9. Install the unit on a noncombustible surface in a stable position. If installation on combustible
floor, the unit should be raised off floor to prevent contact with combustible materials.
10. It is important to keep enough clearance for the purpose of maintenance, repair and possible
servicing.
11. The exhaust pipe is free of snow, icing, leaves, bird’s nest or strong drafts.
12. Before making a hole in your wall for the exhaust pipe, make sure the area is free of
electrical wires, gas pipes and other obstacles.
13. Select a place that can draw in sufficient air for combustion. The air intake hole should be
placed in a spot can draw in outside air near the floor.
Effective hole area 450 cm
2
x 2 locations
Type of ventilation hole Aperture factor Existing ventilation hole ara
Metal ventilation hole 50% 900 cm
2
Wooden ventilation hole 40% 1125 cm
2
14. Select a place which maintain sufficient clearance to prevent fire. The clearance between
the water heater and combustible objects should be maintained as illustrated in the figure.