EUTECTIC EC-10 DV
5
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 sys-
tem. 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 shown in figure 3 is required in large, multi-story building
installations, especially when high-head pumps are used.
IMPORTANT:
Hot water heating systems containing high water volume, such
as would occur with cast iron radiation, 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 Burner Data, pages 9-10, and Burner Manual supplied with burner. 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 9-10. Check to see
that nozzle and settings are as given in burner data tables, pages 9-10.
Figure 3.
Air Eliminating System or Alternating Collecting System. Pipe off to a safe place the relief valve and drain outlet.
Automatic
Air Vent
32mm 1-1/4"
NPT Supply
Air Eliminator as per
Manufacturer
Specifications
To Circ.(s)
and Zones
Supply Pipe
Mounted Tridicator
Relief Valve
19mm (3/4")
Panel Mounted
Tridicator
Temperature Sensor
Well
355mm
(13-31/32")
195mm
(7-11/16")
Panel Mounted
Tridicator
Pressure Sensor
Well
13mm (1/2") NPT
Tapping for Feed
Valve and Expansion
Tank
32mm (1-1/4") NPT
Return Tapping
Drain Outlet
WATER CONTENT OF BOILER
mm
in.
mm
in.
L/m
U.S.G/ft.
mm
in.
L/m
U.S.G/ft.
10
3/8
—
—
—
—
—
11
0.430
0.093
0.0075
13
1/2
40
16
0.622
0.195
0.0157
14
0.545
.0150
0.0121
16
5/8
—
—
—
—
—
17
0.666
0.225
0.0181
19
3/4
40
21
0.824
0.344
0.0277
20
0.785
0.311
0.0251
25
1
40
27
1.049
0.557
0.0449
26
1.025
0.532
0.0429
32
1
1
/
4
40
35
1.380
0.967
0.0779
32
1.265
0.810
0.0653
38
1
1
/
2
40
41
1.610
1.315
0.106
38
1.505
1.147
0.0924
51
2
40
53
2.067
2.159
0.174
50
1.985
1.998
0.161
64
2
1
/
2
40
63
2.469
3.090
0.249
63
2.465
3.078
0.248
76
3
40
78
3.068
4.765
0.384
75
2.945
4.393
0.354
Nominal
Pipe Size
Schedule
No.
Inside
Diameter
Volume per
linear unit.
Inside
Diameter
Volume per
linear unit.
Standard Steel Pipe
Type L Copper Tube
VOLUME OF WATER IN STANDARD PIPE OR TUBE
EC-13
EC-14
EC-15
EC-16
L
USG
L
USG
L
USG
L
USG
18.9
5
24.6
6.5
30.3
8
36.1
9.5
