1-1
INSTALLATION
HC SERIES BOILERS HC 13-50, HC 23-84, HC 29-106, HC 20-125, HC 33-160
INSTALLATION1.0
GENERAL
HC Series gas-red modulating boilers are low pressure, fully condensing units
having variable input ranges (see specication chart - page 3). The boilers
are approved as “Category IV” vented appliances using Direct Vent (sealed
combustion).
Figure 1 shows outer case dimensions and piping and electrical holes. Use this
diagram to nd a suitable location for the boiler. See also Section 1.3 Location.
DESCRIPTION HC SERIES BOILERS
A Exhaust Outlet 3" Schedule 40
B Combustion Air 3" Schedule 40
E Heating Water Inlet (Return) 1" Male NPT
F Heating Water Outlet (Supply) 1" Male NPT
G Gas Inlet 1/2" Male NPT
H Condensate Outlet 3/4" Hose
I Knock-out (3) 1/2"
Table 1: Connections
1.1
Figure 1a: Dimensions / Connections for HC Series Figure 1b: Dimensions / Connections for HC Series
MODEL
NUMBER
HEIGHT
HC 13-50 26.6" [676]
HC 23-84 26.6" [676]
HC 29-106 29.0" [736]
HC 20-125 31.3" [796]
HC 33-160 31.3" [796]
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