SVS OIL FLEX VENT
The oil flex vent connection consists of:
Terminal with connector and seal band clamp
Flex vent pipe up to 20 feet long (max)
Appliance and connector seal band clamp
The flexible vent pipe must be continuous and in one piece.
Connectors are installed at either end - terminal and appliance - and sealed to inside pipe with 600°F sealant.
Care must be taken to ensure that the connectors seal to the inside stainless oil flex vent.
O-ring seals permit inspection and cleaning as required by code
Max flex vent length 20 feet. Support every 36".
Minimum bend radius 1 foot.
See SVS instructions for complete installation instructions.
FLEX VENT ASSEMBLY
Assemble the terminal connector first. To establish length, put flex vent in place with non-combustible supports every 3 ft as recommended. Use wide bends greater than 1 ft radius. Cut to length when in final position. Once sealant has set connectors cannot be removed from flex vent.
SEAL JOINT
Push outer casing back to reveal 1/2 to 3/4" of the oil flex.
Remove screw and outer sleeve.
Align flat seams of inner pipe and connector to check complete screw fit. COUNTER-CLOCKWISE. Turns easily with correct fit.
Unscrew part way and apply a generous bead of 600°F Loctite Ultra Copper sealant Newmac Part no. 2080072 - see diagram.
Slowly engage and screw the connector COUNTER-CLOCKWISE into the flex vent inner pipe. Ensure sealant bead is maintained.
Continue to screw until the connector tightens into the pipe.
Replace outer sleeve and tighten screw. Tighten outer casing with gear clamp. Do not deform the vent casing.
CUT TO LENGTH
Select the cut-off point. Take care not to cut too short as the flex vent must not be joined. Do not puncture inner pipe.
Cut with a hacksaw or tin snips. Use appropriate safety precautions. The thin metals are sharp.
Push outer casing back 1/2 to 3/4" to expose the end of the inner pipe.
Install connector as described above.

| Note: Oil flex connectors, seal clamps and oil flex vent pipe must be of same manufacture. |
| Appliance |
LFR
|
NBR
|
NV2
|
| SVS system adaptor kit |
D4160109
|
D4160103
|
D4160111
|
| Appliance breech adaptor assembly |
D4160108
|
D4160104
|
D4160110
|
| Breech diameter |
4"
|
5"
|
6"
|
| Stainless flexvent pipe diameter |
3"
|
4"
|
4"
|
| Twinply aluminum air duct diameter |
4"
|
5"
|
5"
|
| Flexvent to terminal connector |
D2050044
|
D2050030
|
D2050030
|
| Terminal clamp |
D2050031
|
D2050031
|
D2050031
|
| Breech adaptor only |
D2050045
|
D2050029
|
D2050056
|
| Breech clamp |
D2050046
|
D2050032
|
D2050032
|
| Airduct to terminal adaptor |
-
|
D2050026
|
D2050026
|
| Airduct to Riello adaptor |
D2050043
|
D2050025
|
D2050025
|
| Airduct to Beckett adaptor |
-
|
D2050026
|
D2050026
|
| 600°F sealant |
D2080072
|
D2980072
|
D2080072
|
| Terminal vent elbow kit |
D5010139
|
D5010139
|
D5010139
|
| Breech vet elbow kit |
D5010140
|
D5010141
|
D5010141
|
| Terminal seal ring |
D2080074
|
D2080074
|
D2080074
|
| Breech seal ring |
D2080076
|
D2080075
|
D2080075
|
| Heat shield assembly |
D4160107
|
D4160107
|
D4160107
|
SVS FLEX COMPONENTS - SEE TABLE
See table for vent pipe diameter.
Do not join - installation must be one complete length.
Attach connectors to flex vent as described overleaf.
O-ring seals. Allow for inspection and cleaning.
Hi-temp 600°F RTV sealant for connector assembly, breech pipe connection and the burner flange. See SVS instructions.
Twin ply flexible, non-combustible, aluminum air duct used for durability - see table for diameter.
O-RING SEAL
Ensure O-ring contact surfaces are clean
Loosen seal clamp and slide onto pipe
Place O-ring on pipe end
Slide flex connector into place on pipe
Expand seal clamp over O-ring and both pipe beads
Using 5/16" nut driver, carefully tighten clamp screw so that joint and seal are snug. Do not over-tighten.
BREECH PIPE CONNECTION
Ensure breech pipe is clean.
Apply 600°F silicone to breech pipe - see diagram.
Loosen breech gear clamp and slide onto pipe.
Check sealant bead maintains seal.
Using 5/16" nut driver, tighten gear clamp to secure assembly. Do not over-tighten.

|