DeDietrich GT 123 A, Installation And Maintenance Manual

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4.3 Boiler Venting – Oil Fired Direct Vent Systems [Sealed Combustion] Typical Layouts and Requirements.
Caution & Warning:
Improperly sealed venting system could result in carbon monoxide [CO] poisoning; ensure adequate support
and fastening of system. Ensure venting can safely exhaust all flue gases outside in an effective manner. These systems
must operate under a positive vent pressure condition that is stable. Do not puncture or drill holes in any portion of the
venting, venting to be sealed according to the vent manufacturers recommended method.
Oil Direct Vent Systems:
Must be vented using the systems shown in the table, see venting
layout drawing for component identification.
System Requirements :
1. Complete venting system by Flex-L-International
2. Vent Safety Switch [Pressure switch], set switch according
to sidewall vent switch settings on proceeding page.
Flex-L [CeraFlex] Flexible Venting
•
Length must be as short as possible [Min 5 feet & max 20 feet]
•
Horizontal runs to be sloped upwards.
•
No excessive bends or 90° Elbows in venting, all bends shall be no greater than 120°
•
Termination hood to be tilt downward 2-5° away from boiler
•
4" ID exhaust double wall insulated flexible venting & 4" single wall intake air flexible venting
•
Venting pressure shall not exceed 0.20" w.c. [0.50 mbar]
•
Use termination riser in installations where the min distance from the vent termination and grade cannot be achieved,
the rise must be included with the overall vent length.
•
Vent terminals through combustible wall require a wall thimble
•
Cera-Flex venting to have 1" clearance to combustibles
•
Vent Termination zero clearance to combustibles
•
DO NOT ENCLOSE ANY PORTION OF THE VENTING
•
All venting must be securely supported using non combustible supports.
•
Consult manual regarding application and wiring of the vent safety device [
Δ
p] air pressure switch and settings.
•
Do not co-vent with any other appliance, these vent systems shown were design for single appliance venting.
Individual CeraFlex Vent Kit Components
Drawing
ID
Flex-L Part
#
Description Qty
CFV054-6
CeraFlex-Insulated Vent 5
foot x 4 inch
1
CFV104-6
CeraFlex-Insulated Vent 10
foot x 4 inch
1
CFV154-6
CeraFlex-Insulated Vent 15
foot x 4 inch
1
C
CFV204-6
CeraFlex-Insulated Vent 20
foot x 4 inch
1
D
CFAA54P-
DD
OEM Appliance Adapter 5
inch - 4 inch w/ port
1
E CFAT44
CeraFlex termination
adapter 4 inch - 4 inch
1
F CFBA34-RL
Riello BF Burner air intake
adapter 3 inch - 4" inch
1
G CFGC4 Air Intake Flex Clamp 4 inch 2
L05-04
Air Intake Flex Venting 5 foot
x 4 inch
1
L10-04
Air Intake Flex Venting 10
foot x 4 inch
1
L15-04
Air Intake Flex Venting 15
foot x 4 inch
1
H
L20-04
Air Intake Flex Venting 20
foot x 4 inch
1
Item
Flex-L Part #
Description
Qty
[Req]
CFT4 CeraFlex Vent Termination 4" 1
CFRBS4
CeraFlex Vent Termination Riser 4"
[Std] 34" Rise
1
Select
one
only
A
CFRBS4L
CeraFlex Vent Termination Riser 4"
[Low] 18" Rise
1
CFK054-DD
5 ft. Complete CeraFlex Venting Kit
De Dietrich GT 120A Series Boilers
1
CFK104-DD
10 ft. Complete CeraFlex Venting Kit
De Dietrich GT 120A Series Boilers
1
CFK154-DD
15 ft. Complete CeraFlex Venting Kit
De Dietrich GT 120A Series Boilers
1
Select
one
only
B
CFK204-DD
20 ft. Complete CeraFlex Venting Kit
De Dietrich GT 120A Series Boilers
1
Ve
nting
2
5
09/02/08 - 94863361 - 85784009D GT 120 A - GT 1200 A