Napoleon Fireplaces PVAL50 Instructions D'installation page 3

VENT LENGTHS
It is recommended that the gas power vent be used with a gas appliance
that is equipped with Electronic Ignition. When installing the venting, these
parameters supersede the Vent Installation Section in the appliance's
Installation and Operating Instructions, as well as the following guidelines:
Maximum horizontal vent run with no rise is 70 feet total.
H = HORIZONTAL RUN
MAX H+V
70 FEET
MULTI ELBOW
Multi-elbow installations are possible up to a maximum of six 90°.
MAX
V1+V2+V3+
H1+H2+H3
70 FEET
DOWNWARD VERTICAL VENTING
Downward venting installations are only allowed when the
appliances is set to Intermittent Pilot Ignition (I.P.I.) Electronic
Ignition (E.I.). If an anti-condensation switch is being used,
downward vertical venting is not allowed.
MAX MIN
H1+H2+V H1+H2+V
70 FEET 10 FEET
V = VERTICAL RUN
MIN H+V
10 FEET
MIN MAX
ELBOWS
V1+V2+V3+
H1+H2+H3
10 FEET SIX 90°
MAX D
ELBOWS
8 FEET
MAX ELBOWS
SIX 90°
MAX
SIX 90°
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