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5 - INSTALLATION - Mounting & gas and water connections
5.14 - Suggested
piping and wiring
connections
Figure 13 shows the suggested piping
and wiring connection for the PC160.
All component listed below, except the
fl ue terminal must be fi eld supplied.
1 = ball valve
2 = drain valve
3 = Manual gas shut-off valve
4 = sediment trap
5 = ground joint union
8 = Relief valve drain
9 = Condensate drain
10 = Domestic mixing valve
12 = Flow restrictor
13 = Fill valve
14 = Heating supply
15 = Domestic Hot Water
16 = Cold water
17 = Heating return
18 = Gas supply
19 = Concentric vent/air intake
terminal
OS = Outdoor sensor (optional)
RC = Remote command (optional)
RT = Room thermostat
120 Vac = Electrical supply
Figure 13 - Typical piping and wiring connections
20
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