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H =
Clearance to each side of center line extended above meter/
I =
Clearance to service regulator vent outlet
J =
Clearance to non-mechanical air supply inlet to building or
the combustion air inlet to any other appliance
K =
Clearance to mechanical air supply inlet
L =
Clearance above paved sidewalk or paved driveway located
M =
Clearance under veranda, porch, deck or balcony
† A vent shall not terminate directly above a sidewalk or paved driveway
that is located between two single family dwellings and serves both
dwellings.
‡Permitted only if veranda, porch, deck or balcony is fully open on a
minimum of one side beneath the floor.
Note:
Local Codes or Regulations may require different clearances. The flue terminal must be exposed to the external air and the
position must allow the free passage of air across it at all times. In certain weather conditions the terminal may emit a plume of
steam. Avoid positioning the terminal where this may cause a nuisance.
5.
BOILER LOCATION
The boiler is not suitable for external installation.
The boiler must be installed on a flat vertical wall which is capable of supporting the weight of the boiler.
The boiler may be installed in any room or internal space, although particular attention is drawn to the requirements of the current
electrical provisions with respect to the installation of the boiler in a room or internal space containing a bath or shower. Where a
room-sealed boiler is installed in a room containing a bath or shower, it must not be possible for a person using the bath or shower
to touch any electrical switch or boiler control utilizing line voltage electricity.
The boiler may be installed in a cupboard or compartment, provided it is correctly designed for that purpose.
6.
CENTRAL HEATING SYSTEM
The boiler is designed for use in a sealed central heating system.
Refer to section 2: "TECHNICAL DATA" for details of the heating system volume.
The system should be designed to operate with flow temperatures of up to 176°F / 80°C. When designing the system, the pump
head, expansion tank size, mean radiator temperature, etc. must all be taken into account. Refer to the pump performance table
in section 2.6: "AVAILABLE PUMP HEAD FOR CENTRAL HEATING".
The boiler is supplied with the following components built in:
Pressure relief valve - set to operate at 30.0 psi / 2.1 bar.
WARNING
The discharge pipe must be routed clear of the boiler to a drain, in such a manner that it can be seen, but cannot cause
injury to persons or property.
The pressure relief valve must be manually operated at least once a year.
• Avoid contact with hot water coming out
• Prevent water damage
Pressure gauge - to indicate the system pressure to be maintained.
Expansion tank - with a capacity of 2.2 gal (USA) /10.0 I and pre-charged to a pressure of 7.25 psi / 0.5 bar.
Note:
The expansion tank must be charged to match the pressure of the central heating system upon installation.
By-pass - The boiler incorporates an automatic by-pass, However, where all radiators are fitted with thermostatic radiator valves,
an external by-pass must be fitted.
regulator assembly
on public property
3 ft. (0.9m) within a height of
15 ft. (4.5m) above the meter/
regulator assembly
3 ft. (0.9m)
12" (305mm)
*3 ft. (0.9m)
*7 ft. (2.1m)
*12" (305mm) ‡
*For clearances not specified in ANSI Z223.1/NFPA 54 or CSA
B149.1, clearance will be in accordance with local installation
codes and the requirements of the gas supplier and these
installation instructions.
23
3 ft. (0.9m) within a height of
15 ft (4.5m) above the meter/
regulator assembly
3 ft. (0.9m)
3 ft (0.9m)
6 ft. (1.8m)
7 ft. (2.1m) †
12" (305mm)‡
7703472.01 (1-03/18)
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