Connection Specifications - IBC EX Series Installation & Operating Manual

Specifications
Relief valve pressure (supplied) - psig*
Approved installation altitude - ASL
Maximum equivalent vent length each
side (vent & air intake) (natural gas or
propane)
Air intake options: either direct vent or
indoor supply
*These alternative relief valves can be purchased: 30, 100, 125 and 150.

Connection specifications

The following table displays the required connection specifications for each model.
Flue Outlet
Combustion Air Inlet
Water Outlet
Water Inlet
Knock-outs (8)
Gas Inlet
Condensate Outlet
Table 1 Connections
Note
You must use a reducer to connect 6" vent piping to the 4" vent collar. See
EX 400
50
0 - 12,000'
170'
EX 400, EX 500
4" Schedule 40
4" Schedule 40
2" NPT-M
2" NPT-M
½"
1" NPT-F
¾" Hose
8
Section: Specifications
EX 500 EX 700
50 50
0-12,000' 0 - 12,000'
170' 120'
EX 700, EX 850
6" Schedule 40
4" Schedule 40 (See note
below)
2½" NPT-M
2½" NPT-M
½"
1" NPT-F
¾" Hose
Figure 22
EX 850
50
0-12,000'
120'
.