14
Legend
A Heating return
3/4” NPT
B Cold water inlet
1/2” NPT
C Gas
3/4” NPT
D Hot water outlet
1/2” NPT
E Heating supply
3/4” NPT
Condensate check valve
3/4” NPT
Pressure relief valve
3/4” NPT
2 9/16"
4 3/4"
2 9/16"
3/4" NPT 3/4" NPT
Hot water
outlet
1/2" NPT
Gas
3/4" NPT
Cold water
inlet
1/2" NPT
Heating return
3/4" NPT
3/4" NPT
FEMALE
3/4" NPT
1/2" NPT
3/4" NPT
1/2" NPT
3/4" NPT
Heating supply-Pressure relief valve
Condensate
check valve
FAMILY PRO 42 KIS
3/4" NPT
3/4" NPT
3/4" NPT
3/4" NPT 3/4" NPT
Gas
3/4" NPT
Heating return
3/4" NPT
3/4" NPT
FEMALE
3/4" NPT
3/4" NPT
Indirect water tank
supply
3/4" NPT
Water tank
return
3/4" NPT
condensate
check valve
Heating supply-Pressure relief valve
Legend
A Heating return
3/4” NPT
B Water tank return
3/4” NPT
C Gas
3/4” NPT
D Indirect tank supply
3/4” NPT
E Heating supply
3/4” NPT
Condensate check valve
3/4” NPT
Pressure relief valve
3/4” NPT
E D C B A
4
13/16”
2
9/16”
1
7/8”
2
7/8”
2
9/16”
3
13/16”
4
1/16”
2
1/4”
only combi
FAMILY PRO 42 IS
2 9/16"
4 3/4"
2 9/16"
FAMILY PRO 42 KIS
FAMILY PRO 42 IS
E D C B A
Summary of Contents for Family PRO 42 IS
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