Vanox LYRA VZB28BN Operation Instructions Manual - Section 3:
The VZB28BN is certified for use with standard 4” -5 “and 6”
inch B-Vent, and requires no B-Vent appliance connector.
Simply attach the B-Vent to the fireplace 5” flue collar, and
secure it using 1/4” sheet metal screws.
Refer to the current CAN/CGA B-149.1 or ANSI Z223.1 /
NFPA54, gas Installation Code for specific vent sizing.
Notes:
The fireplace requires a MIN. 12’-0” feet vertical
rise in order operate correctly.
If more than 12’-0” feet of B-Vent is used on vent
runs, use ceiling supports.
For reducing to the 4”B-Vent, use the BV reducing
adapter on top of the 5” fireplace flue collar,
supplied with the fireplace. For 6”use adapter to
increasing unit, it comes standard with 5”
diameter collar, to 6”.
4”, 5”, 6” B-Vent installation
See the detailed drawings below and determine which
installation best suits your application. Follow all the pre-
scribed details installations as shown. Failing to do so can
create an unsafe condition, which to lead to a fire, safety
hazard, injury or death.
Figure 5. Straight through ceiling and roof installation, for 5”
inch B-Vent installation.
Section 3:
B-Vent Installation
CAUTION
Test your B-Vent installation after completion to ensure
that no combustible by-products are spilling from the
fireplace opening. This draft test should be performed
after a ten (10) minute warm up period. The manufac-
turer will not be responsible for any installations with
inadequate draw.
ATTENTION
Testez votre installation B-Vent après l'achèvement de
s'assurer qu'aucun combustible des sous-produits se
propageaient de l'ouverture du foyer. Ce projet de test
doit être effectué après dix (10) minutes
d'échauffement période. Le fabricant ne sera pas
responsable de toutes les installations avec tirage
insuffisant.
When installing VZB28BN as a zero clearance unit, you must
use a Minimum 12’-0” vertical vent pipe. (See Figure 5). The
venting must terminate vertically with an approved B-Vent
rated pipe. A Maximum 4’-0” horizontal pipe is acceptible with
2-90 degree elbows.
Confirming proper venting of Appliance.
To check for proper drafting use this procedure.
1). Place unit in operation and allow to run for approximately
(5)-minute to establish a up-draft.
2). Using a match or something that will produce smoke,
place it up to the opening of the draft hood and verify that
the flame or smoke is being drawn into the draft hood. If the
flame or smoke is blown away from the draft hood opening.
You may have to re-check the venting and verify there is a
minimum of 12’-0” feetof venting, or check the house for
negative pressure.
enclosure / chase
Attic
insulation
shield
Floor / hearth
4”/5”/6” B-Vent
ceiling framing
ceiling framing
Rain cap / termination
Storm collar
Min.
12’-0” feet
Vertical
Part. No.
VZB28BN-Man-101817-A
VZB28BN Gas Fireplace
VANOX Fireplace Inc.
Page 9