I-38
Z-038791_EN • Rev A
P
roduct
I
nstallatIon
C
13(x)
Combustion circuit
Sealed
Connection
Horizontal (wall) terminal
Air inlet/fl ue outlet orifi ces
Concentric
- to a terminal for admission of combustion
air from the outside AND fl ue discharge to the outside
OR
Close enough to come under similar wind condi-
tions
- fi tting in:
î
a square of 50 cm
(if appliance < 70 kW)
î
a square of 100 cm
(if appliance is between 70 kW and 1000 kW)
C
33(x)
Combustion circuit
Sealed
Connection
Vertical terminal
Air inlet/fl ue outlet orifi ces
Concentric
- to a terminal for admission of combustion air
from the outside AND fl ue discharge to the outside
OR
Close enough to come under similar wind conditions
-
fi tting in:
î
a square of 50 cm
(if appliance < 70 kW), with distance between planes of
orifi ces < 50 cm
î
a square of 100 cm
(if appliance is between 70 kW and 1000 kW), with
distance between planes of orifi ces < 100 cm
Combustion circuit
Sealed
Connection
Via separate ducts
Air inlet/fl ue outlet orifi ces
Through separate terminals that may termi-
nate in zones of diff erent pressures
Additional requirement
Orifi ces may NOT terminate on opposite walls of
the building
Combustion circuit
Sealed
Connection
Via separate ducts
Air inlet/fl ue outlet orifi ces
Through separate terminals that may termi-
nate in zones of diff erent pressures
Additional requirement
Orifi ces may NOT terminate on opposite walls
of the building
C
53(x)
C
53
