Modine HDS Manuel D'installation page 11

INSTALLATION - VENTING
D9. Slide the combustion air pipe over the vent pipe and attach
to the air inlet of the concentric adapter box, as shown
in Figure 11.1, using at least 3 corrosion-resistant sheet
metal screws. Seal the joint and seam using sealant
suitable for temperatures up to 400°F.
Figure 11.1 - Adapter Box with Combustion Air Intake
Pipe Attached
Outlet Vent
Pipe Extended
Through Box
13.33"
D10. Place this assembly (the adapter box, vent pipe and
combustion air pipe) through the wall or roof and verify
that the distance requirements as defined in Step D7 are
met. Securely attach the assembly building.
D11. From outside the building, caulk the gap between the
combustion air intake pipe and the building penetration.
D12. Attach the combustion air intake and vent pipe
terminations as follows:
For Vertical Concentric Vent Kits
(refer to Figure 10.1):
• S lide the combustion air cap down over the vent pipe
and fasten it to the combustion air pipe with at least 3
corrosion-resistant sheet metal screws.
• A ttach the vent cap to the vent pipe using at least
3 corrosion-resistant sheet metal screws. Refer to
instruction A12 for connecting terminal to double wall
pipe.
• C aulk the gap between the combustion air cap and the
vent pipe with silicone sealant, or other appropriate
sealants suitable for metal to metal contact and for
temperatures up to 400° F.
For Horizontal Concentric Vent Kits
(refer to Figure 10.2):
• A ttach the combustion air intake guard using corrosion-
resistant screws at the end of the combustion air intake
pipe to prevent animals and debris from entering.
• A ttach the vent cap to the vent pipe using at least
3 corrosion-resistant sheet metal screws.
D13. For model sizes 30 and 45, attach the 3" to 4" vent
transitions on the non-concentric side vent and
combustion air connections using 3 corrosion resistant
sheet metal screws.
D14. Install vent pipe and combustion air pipe between unit
heater and concentric vent adapter box as outlined in
"Section A – General Instructions – All Units".
D15. Once venting is complete, proceed to the section titled
"Installation - Gas Connections".
Combustion Air
Pipe Attached
4.57"
18.84"
6-584.11
Table 11.1 - Concentric Vent Pipe Sizes
Single Wall Pipe
Model Combustion Air
Size (To Unit)
30-45 3" k
60-125 4"
j B-Vent must have 1/4" air gap (OD is 1/2" larger than ID).
k Use vent transitions included in concentric vent kit as described in D13.
Figure 11.2 - Adapter Box Exploded Assembly
Table 11.2 - Vent Terminals (Concentric)
Model Size
30-45 Horizontal Concentric
30-45 Vertical Concentric
60-125 Horizontal Concentric
60-125 Vertical Concentric
Type B Vent Pipe j
Combustion Air Vent
(External) (Pass-Through)
6" 4" k
6" 4"
Modine PN
5H0751500001 Vent Cap
3H03493000-4 Intake Guard Assembly
5H0722850001 Vent Cap
5H0751540004 Intake Cap
5H0751500001 Vent Cap
3H03493000-4 Intake Guard Assembly
5H0722850001 Vent Cap
5H0751540004 Intake Cap
11