12
6. CONNECT BOILER WATER PIPING
4.
Screw the relief valve into manifold tapping
“RV”.
i
This installation is not complete until the
relief valve is installed.
PIPE THE RELIEF VALVE DISCHARGE
to a location where it will not harm
people or damage property. The relief valve may
discharge scalding hot water or steam.
BLOCKING THE RELIEF VALVE may
result in boiler explosion.
5.
Screw the temperature-pressure gage into
manifold tapping “G”.
6.
Connect the system supply to the open end
of the manifold "S" using a 1¼” male NPT
fitting.
7.
Screw an installer-supplied 1¼” pipe or
nipple into the water return tapping “R”.
8.
Screw the supplied drain valve into tapping
“D”.
9.
See Figure 6b for suggested near boiler
piping of IQ Options.
General system piping guidelines are included in
Appendix D—System Piping.
Additionally, for this particular boiler install piping
shown below (Figure 6-a).
1.
Apply sealant to all threads.
2.
Screw the water supply manifold into the
boiler outlet tapping “O.”
3.
Orient the manifold with the relief valve on
top.
6-a
RV
S
R
O
G
D
Item
Description
Part Number
1
1¼ x 1¼ x ½ Tee
806601021
2
Immersion Well, ½ NPT
80160456
3
1¼ x 6 Nipple
806600029
4
1¼ Tee
806601030
5
1¼ x ¾ Bushing
806600504
6
LWCO Sensor, ¾ NPT
102305-01
7
1¼ x 3 Nipple
806600005
8
1¼ Elbow
806601528
6-b
