Installation; General - IBC VFC 15-150 Manual

1.0
Figure 1a: Dimensions / Connections for VFC 15-150

INSTALLATION

VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS
INSTALLATION
1.1

general

VFC gas-fired modulating boilers are low pressure, fully condensing units having
variable input ranges (a) 15 MBH (15,000 Btu/hr) to 150 MBH (15-150 model,
0 to 8,000') and (b) 45 MBH to 225 MBH (45-225 model, 0 to 8,000'). the
boilers are approved as "Category iV" vented appliances using either direct
Vent (sealed combustion) or indoor combustion air, providing a great degree of
installation flexibility.
Figure 1 shows outer case dimensions and piping and electrical holes. use this
diagram to find a suitable location for the boiler. See also Section 1.3 Location.
DESCRIPTION
A Water outlet
B Water inlet
C gas inlet
D Knock-outs (6)
E lCd display
F exhaust Vent
G Combustion air
Table 1: Connections
Figure 1b: Dimensions / Connections for VFC 45-225
SIZE
1-1/4" nPt-M
1-1/4" nPt-M
1/2" nPt-F
1/2"
3/4"
4.0" Hole
4.0" Hole
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