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WARNING
Safety valve discharge piping must be
piped to within six (6) inches of floor or to
floor drain to eliminate potential of severe
burns. Do not pipe in any area where
freezing could occur. Do not install any
shut-off valves, plugs or caps in discharge
piping.
H. STEAM BOILERS — INSTALL STEAM TRIM
Items for steam trim are located in the steam trim carton
(except for the separately ordered low water cutoff and
tankless heater control). Figures 25a and 25b show the
proper tappings for each item.
1. Install the gauge glass set.
2.
Install the low water cut-off. Follow manufacturer’s
instructions furnished with control.
3. Install the pressure limit control as shown in Figure
25b.
4. Level the pressure limit control by carefully bending
the syphon until the control’s leveling indicator hangs
freely with its pointer directly over the index mark
inside the back of the case.
5. Install the steam gauge using the ½” NPT x ¼” FPT
hex bushing.
6. Install the safety valve as shown in Figures 25a
and 40a. Safety valve must be installed in vertical
position.
7. For boilers with tankless heaters, install the operating
control in an unused tapping through one of the
heater plates.
8. Plug extra boiler tappings.
9. Install required bottom blowoff/drain valve and
connecting piping (supplied by others) per minimum
piping requirements for steam boilers. See Figure
25b.
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