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EUTECTIC EC-10 DV
If system pressure needs further control, add an additional tank or install a
larger capacity tank. The automatic air vent should be installed in the top of
the boiler, as in figure 3.
B. CONVENTIONAL COMPRESSION TANKS (non-diaphragm type) are
used to control system pressure in an AIR COLLECTING SYSTEM. Within
the system, after initial start-up and venting, air is collected in the tank and
acts in contact with the water to control pressure. Air is not vented from this
system. If system pressure needs further control, add another tank in
parallel with the original tank or install a large capacity tank. Locate the
tank at the inlet end of the pump near the boiler. (See figure 3)
C. HOT WATER RADIATION VENTING - Manual air vents should be installed
at the top of all "drops" (where piping goes downward). Air must be vented
or purged from all zone lines to permit proper system heating.
D. PUMP LOCATION - Locating low-head pump(s) on return to boiler is
acceptable for smaller boiler sizes in residences of one or two stories.
The pump location sho
wn in figure 3 is required in large
, m
ulti-stor
y
building installations, especially when high-head pumps are used.
IMPORTANT: Hot water heating systems containing high water volume, such
as w
ould occur with cast iron r
adiation, require special care with air elimina-
tion. The circulator pump should be located on the boiler supply pipe and the
expansion tank and air scoop should be located near the pump suction.
INSTALLING THE BURNER
See Bur
ner Data, pages 8-9, and Bur
ner Man
ual supplied with b
ur
ner. If
burner is not mounted as received, mount to boiler, placing flange over
mounting studs
. Use gasket between flange and boiler. Distance between
flange and nose of burner must be as shown on pages 8-9. Check to see
that nozzle and settings are as given in burner data tables, pages 8-9.
3
⁄
8
– – – 0.430 0.0075
1
⁄
2
40 0.622 0.0157 0.545 0.0121
5
⁄
8
– – – 0.666 0.0181
3
⁄
4
40 0.824 0.0277 0.785 0.0251
1 40 1.049 0.0449 1.025 0.0429
1
1
⁄
4
40 1.380
0.0779
1.265 0.0653
1
1
⁄
2
40 1.610 0.106 1.505 0.0924
2
40
2.067
0.174
1.985 0.161
2
1
⁄
2
40 2.469 0.249 2.465 0.248
3 40 3.068 0.384 2.945 0.354
Nominal
pipe Dia.
Pipe
Schedule
Pipe ID
Inch
Gal. per
Lin.Ft.
Pipe ID
Inch
Gal. per
Lin. Ft.
Standard Steel Pipe Copper Pipe
VOLUME OF WATER IN STANDARD PIPE OR TUBE
1
3-31/32
7
-11/16
Relief valve 3/4
1/2” NPT Tapping
for FeedValve and
E
xpansionTank
1-1/4 NPT
r
eturn tapping
Drain outlet
Panel Mounted
T
ridicator Temperature
Sensor Well
A
ir Eliminator
a
s per Manufacturer
Specifications
To Circ.(s)
and Zones
1
-1/4”
NPT
Supply
Automatic
Air Vent
S
uppy Pipe Mounted
Tridicator
Panel Mounted
Tridicator Pressure
Sensor Well
Figure 3. Air Eliminating System or Alternating Collecting System
EC-13 EC-14
EC-15 EC-16
5 6.5 8 8.5
WATER CONTENT OF BOILER (GALLONS)