EFM Heating VT 700 E, VT 1000 E Installation Instructions Manual
Installation Instructions
Boiler Burner Unit
Model VT 700 E
Model VT 1000 E
(For Hot Water Heating Systems)
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Sa l e s Compa n y
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Specifications
MODEL CAPACITY OUTPUT OUTPUT CAPACITY OUTLET WEIGHT
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VT 700 E AFG76XN 968X8X15 315
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VT 1000 E AFG76YB 19 7 8X8X15 435
Installation Instructions
NOZZLE SIZE BECKETT CHIMNEY
GPH + TYPE BURNER SIZE
1.00 - 80 H 116,000 100,000 664
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0.85 - 80 H 100,000 86,000 570
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0.75 - 80 H 88,000 77,000 510
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0.65 - 80 H 77,000 67,000 444
1.65 - 80 H 193,000 166,000 1,107
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1.50 - 80 H 174,000 151,000 1,006
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1.35 - 80 H 159,500 137,000 915
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1.10 - 80 H 131,500 113,000 754
HEATING NET NET WATER SMOKE SHIPPING
BTUH BTUH SQ. FT. GAL. SIZE POUNDS
CAUTION:
1. Installer must be a trained, experienced serviceman.
2. Inspect the boiler, jacket and all components to be sure damage has not occurred in shipment. If
damage is evident you must file a claim with the freight carrier immediately.
3. Disconnect power supply before connecting wiring.
4. Refer to local installation codes for oil burning equipment, for recommended installation practice.
5. A complete heat loss calculation is necessary to choose the proper size unit to install. The boiler
should be sized to within 25% of the actual heat loss of the structure.
6. Conduct thorough checkout when installation is complete.
1) Place the boiler on a level non-combustible
floor, preferably raised and as close to the
chimney as possible. The following minimum
clearances must be adhered to during installation and maintained thereafter to properly
clean, inspect and service your boiler: sides
and back - 6"; front - 24" and vent connector
18". Reduced clearance installations must
follow NFPA-31 guidelines.
2) For location of piping refer to the installation
drawing in Figure 5 and 6. The circulator is
shipped loose. Wire the circulator as shown
on the wiring diagrams in this manual. The
circulator may be located on the return line
as shown in the diagram or in the supply
iping if desired. The aquastat is wired at the
p
factory. For power and thermostat wiring see
Figures 2, 3 and 4 in this manual and the
wiring diagrams in the thermostat manufacturer’s manual. For piping and wiring of other
system components, see the manufacturer’s
installation manuals. An Expansion Tank (not
provided) must be matched to the system
and installed in accordance with the manufacturer’s recommendations. See the manufacturer’s instructions for sizing the expansion tank. Do not under-size the expansion
tank. A bypass loop may be installed to
improve tankless coil performance. See
Figure. 7.
3) The tankless water heater may be piped as
shown in Figure 6. A mixing valve, not supplied, must be used to reduce the water
temperature at kitchen or bathroom taps.
High temperature water for a dishwasher
may be obtained by piping as shown in
Figure 6. The nuts that secure the tankless
coil flange should be tightened before the
boiler is filled with water, after initial firing and
once a year during the annual maintenance.
DETERIORATION DUE TO COIL GASKET
LEAKS WILL VOID THE WARRANTY.
4) The VT series boilers are equipped with an
air eliminator feature that uses a dip tube
construction on the boiler supply fitting. This
feature allows quiet air free operation of your
hot water system by assuring the removal of
air pockets without the installation of Air
Scoops to trap noisy air.
The 1-1/4" supply line or Riser tapping in the
top of the boiler extends approximately 1"
below the top or waterline of the boiler, thus
allowing only air free water to enter the supply
to the heating system. The air trapped in the
top of the boiler is then purged through a 3/4"
vent tapping to be released with an (1) automatic float vent (2) a manual vent or (3) piped
into a conventional type expansion tank.
Relief valve discharges and drain valve piping should be piped to a safe place of discharge. All plugs and water connections
should be checked for leaks upon installation and annually.
5) Be certain the chimney is clean and free of
obstructions. Connect boiler flue outlet to
himney using galvanized smoke pipe. The
c
flue pipe should be pitched upward at least
1/4" per foot of run. Refer to Page 1 in this
manual for proper size flue pipe for your
model boiler. Use only elbows and straight
sections. Tees may be used in a straight section in conjunction with a barometric draft
regulator; however, they must not be used
for a 90° turn. Each joint should be securely
fastened with sheet metal screws. The flue
pipe must not be inserted beyond the inside
wall of the chimney. Install barometric draft
regulator in the horizontal or vertical section
of the flue pipe. The chimney should provide
a minimum of .04 draft at the boiler flue outlet. A draft of .04 is ideal. The draft losses for
VT Series Boilers are listed below.
MODEL Firing Draft
Rate Loss
0.65GPH .002
0.75GPH .005
VT700E
0.85GPH .015
1.00GPH .020
1.10GPH .005
1.35GPH .010
VT1000E
1.50GPH .020
1.65GPH .025
6) The boiler room must be well ventilated to
allow sufficient make-up air to support combustion. Lack of adequate combustion air
may result in erratic operation of the burner,
noisy combustion or fuel odors. Remember
your need for outside air will be greatly
increased if you have a vented dryer in the
basement or other venting fans in the home.
Boilers located in confined spaces shall be
provided with two permanent openings, one
near the top and one near the bottom of the
enclosure. Each opening shall have a free
area of not less than one square inch per
1000 BTU per hour input rating of the boiler,
freely communicating with interior areas having adequate infiltration from the outside.
7) Fill boiler and system with water. Be sure
entire system has been purged of air and the
desired pressure is obtained.
2
8) The boiler is shipped with a nozzle installed.
Check the nozzle and change it if a different
firing rate is desired. Connect burner to oil
upply. Refer to fuel unit manufacturer litera-
s
ture for piping, connections, lift and tank
installation.
9) Connect the electric supply to the boiler as
indicated on the wiring diagrams. The wiring
must be installed in accordance with the
National Electrical Code and any other state
and local codes.
10) One pipe oil supply line installations must be
absolutely air tight or loss of prime may
result. Maximum lift on one pipe installations
is about 8 feet. See burner literature for two
pipe installations. Install a shutoff valve and
oil filter in the oil supply line. Locate shutoff
valve close to tank with oil filter between
valve and burner.
Operational Sequence
1) Boilers with Tankless Coil - This boiler is
equipped with a combination aquastat control which has high and low limits to be set
at 180° and 160° respectively by the installer.
When room temperature falls below thermostat setting, thermostat calls for heat starting
the burner and circulating pump. The burner
and pump continue to operate until room
heating requirements are satisfied (thermostat setting is reached), or until boiler water
temperature reaches the high limit control
temperature setting. If the high limit control
temperature setting is reached, the burner
shuts off and the circulating pump continues
to operate until the room heating requirements are satisfied. If the thermostat continues to call for heat after the boiler water
temperature has dropped below the temperature setting of the high limit control, the oil
burner will start again, while the circulating
pump will continue to run. The boiler water
temperature is normally maintained at 160°F
around the tankless coil by the operating
control so that an abundance of hot water is
available. If the boiler water temperature
should fall below the operating control setting (160°F) the oil burner will be started
again by that control (and the circulating
pump will be prevented from operating) until
the operating control setting is satisfied. See
control manufacturers literature included in
the data package for detailed wiring, operating and safety instructions.
2) Boilers Less Tankless Coil. This boiler is
equipped with a combination aquastat con-
rol which has high and low limits to be set
t
at 180° and 120° respectively by the installer.
The control acts exactly as described for a
boiler with a tankless coil except that the low
limit is set lower since the boiler does not
need to be kept hot to provide heat to the
domestic hot water coil. By maintaining the
boiler at or above 120° the system will
remain warm enough to avoid cycles of hot
and cold that can produce condensation
which can cause deterioration of the boiler
heat exchanger.
3) A cadmium sulfide flame scanner (cad cell)
and relay are provided with the oil burner.
The cad cell will stop the oil burner within a
predetermined number of seconds if the fuel
fails to ignite or if the flame goes out during
operation. The oil burner will remain off until
the red reset button on the relay has been
pushed. RESET MUST NEVER BE
PRESSED MORE THAN ONCE DURING A
SINGLE FLAME FAILURE.
Start-Up and Check-Out Procedure
CAUTION
Only a trained, experienced serviceman should
attempt the checkout procedure outlined below.
Read the burner manufacturers instructions for
start-up for special instructions and special features of the burner and control.
1) Combustion test equipment required for
proper burner adjustment:
a) CO
b) Draft Gauge
c) Oil Pressure Gauge 0-200 PSI
d) Stack Thermometer
e) Smoke Test Gun
f) Vacuum Gauge 0-30 in. of Hg
2) In order to take flue gas samples for combustion testing a 1/4" hole must be drilled in
the flue pipe between the boiler and the
barometric draft regulator.
3) Open all shut-off valves in the oil supply line
to the burner.
4) Set thermostats substantially above room
temperature.
5) Check electrode settings and readjust air
setting if required. Electrode settings are
2
Analyzer
3
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