Steam Trim; Water Trim - Burnham V9A Series Installation, Operating And Service Instructions

insulation and blast tube. If additional rope gasket
is not provided with the burner, use 3/8" fiberglass
rope rated for 2300°F (provided by others).
Reinstall burner mounting plate when finished.
CAUTION
Failure to properly fill all gaps between the
insulation and burner blast tube may result in
damage to the burner.
5. For boilers without tankless heaters, proceed to
Paragraph H (Install Steam Trim) or I (Install Water
Trim).
6. For boilers with tankless heaters, install the tankless
heater manifolds according to Figure 36.
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). Figure 24 shows the proper
tappings for each item.
1. Install the gauge glass set.
2. Install the low water cut-off. Follow manufacturers
instructions furnished with control.
3. Install the pressure limit control using the ¼" x 90
(1-7/8" x 4") extended leg syphon and the ¾" NPT x
¼" FPT hex bushing.
NOTICE
The L404 Pressure Limit contains mercury in a
sealed tube. Do not place limit in the trash at the
end of its useful life.
If this limit is replacing a limit that contains
mercury in a sealed tube, do not place your old
limit in the trash.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of this limit, or of an old limit
containing mercury in a sealed tube.
If you have questions, call Honeywell Inc. at
1-800-468-1502.
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 Figure 38a.
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.
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.
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
32.
I.
WATER BOILERS - INSTALL WATER TRIM
Items for water trim are located in the water trim
carton (except for the separately ordered low water
cutoff and tankless heater control). Figure 24 shows
the proper tappings for each item.
1. Install the temperature pressure gauge.
2. Install the low water cutoff. Follow manufacturers
instructions furnished with control.
3. Install the immersion well and mount the aquastat
(limit control) onto the well.
4. Install the pressure relief valve as shown in Figure
38b. Relief valve must be installed in vertical
position.
5. Plug extra boiler tappings.
6. Install required bottom blowoff/drain valve
(supplied by others) per minimum piping
requirements for water boilers, see Figure 26.
WARNING
Relief 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.
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