EFM Heating VT 700 E User manual

Installation Instructions
CAUTION:
1. I staller must be a trai ed, experie ced servicema .
2. I spect the boiler, jacket a d all compo e ts to be sure damage has ot occurred i shipme t. If
damage is evide t you must file a claim with the freight carrier immediately.
3. Disco ect power supply before co ecti g wiri g.
4. Refer to local i stallatio codes for oil bur i g equipme t, for recomme ded i stallatio practice.
5. A complete heat loss calculatio is ecessary to choose the proper size u it to i stall. The boiler
should be sized to withi 25% of the actual heat loss of the structure.
6. Co duct thorough checkout whe i stallatio 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 instal-
lation 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
Specifica ions
HEATING NET NET WATER SMOKE SHIPPING
NOZZLE SIZE BECKETT CHIMNEY
MODEL CAPACITY OUTPUT OUTPUT CAPACITY OUTLET WEIGHT
GPH + TYPE BURNER SIZE
BTUH BTUH S . FT. GAL. SIZE POUNDS
1.00 - 80 H 116,000 100,000 664
0.85 - 80 H 100,000 86,000 570
VT 700 E AFG76XN 968X8X15 315
0.75 - 80 H 88,000 77,000 510
0.65 - 80 H 77,000 67,000 444
1.65 - 80 H 193,000 166,000 1,107
1.50 - 80 H 174,000 151,000 1,006
VT 1000 E AFG76YB 19 7 8X8X15 435
1.35 - 80 H 159,500 137,000 915
1.10 - 80 H 131,500 113,000 754
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Installation Instructions
Boiler Burner Unit
Model VT 700 E
Model VT 1000 E
(For Hot Water Heating Systems)
e•f•m• Sales Company
Emmaus, Pennsylvania

2
circulator may be located on the return line
as shown in the diagram or in the supply
piping if desired. The aquastat is wired at the
factory. For power and thermostat wiring see
Figures 2, 3 and 4 in this manual and the
wiring diagrams in the thermostat manufac-
turer’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 manu-
facturer’s recommendations. See the manu-
facturer’s instructions for sizing the expan-
sion 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 sup-
plied, 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 GAS ET
LEA S 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) auto-
matic float vent (2) a manual vent or (3) piped
into a conventional type expansion tank.
Relief valve discharges and drain valve pip-
ing should be piped to a safe place of dis-
charge. All plugs and water connections
should be checked for leaks upon installa-
tion and annually.
5) Be certain the chimney is clean and free of
obstructions. Connect boiler flue outlet to
chimney using galvanized smoke pipe. The
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 sec-
tion 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 out-
let. 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 com-
bustion. 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 hav-
ing 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.

3
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
supply. Refer to fuel unit manufacturer litera-
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 con-
trol which has high and low limits to be set
at 180° and 160° respectively by the installer.
When room temperature falls below thermo-
stat setting, thermostat calls for heat starting
the burner and circulating pump. The burner
and pump continue to operate until room
heating requirements are satisfied (thermo-
stat 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 require-
ments are satisfied. If the thermostat contin-
ues to call for heat after the boiler water
temperature has dropped below the temper-
ature 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 set-
ting (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, operat-
ing and safety instructions.
2) Boilers Less Tankless Coil. This boiler is
equipped with a combination aquastat con-
trol which has high and low limits to be set
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
O ly a trai ed, experie ced servicema should
attempt the checkout procedure outli ed below.
Read the bur er ma ufacturers i structio s for
start-up for special i structio s a d special fea-
tures of the bur er a d co trol.
1) Combustion test equipment required for
proper burner adjustment:
a) CO2Analyzer
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 com-
bustion 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

4
shown in the burner manual provided along
with this manual. Burner settings are listed
on the Service Man’s Label attached to the
boiler and on the Burner Unit specifications
provided along with this manual.
6) Install pressure gauge in the 1/8" gauge port
of the oil pump.
7) Turn on switch to start burner. If burner does
not start immediately, you may need to reset
the burner control. See the burner manufac
turers instructions for control and reset
features.
8) On one pipe systems bleed the oil pump as
soon as burner motor starts. To bleed, attach
a length of 1/4" O.D. clear plastic tubing to
the end of the bleed plug and then loosen
plug while holding an empty container under
the tubing to catch all of the expelled oil.
Bleed for at least 15 seconds after the oil
stream is free of all air. If air is still evident in
the bleed line you must check the oil lines,
all fittings, filters and any other connections
for tightness. inks in the oil lines will create
undue high vacuum therefore they must be
eliminated. When you are sure all air has
been eliminated then close the bleed valve.
Ignition should be instantaneous following
the closing of this valve. If it is not good,
proceed to the trouble shooting guide in the
burner manufacturer’s manual to determine
why the oil did not ignite.
9) FINAL ADJUSTMENTS OF THE BURNER
MUST BE MADE USING PROPER COM-
BUSTION TEST EQUIPMENT. The air supply
should be adjusted by loosening the lock
screw and moving the bulk air band or shut-
ter so that the CO2measured in the stack
ahead of the draft control should be a mini-
mum of 10% and a maximum of 12%. At the
same time the draft should be adjusted to
negative .01"- negative .02" W.C. over the
fire. Install a second barometric draft control
if necessary to reduce excessive draft. The
smoke should also be checked with a smoke
gun and found to be zero.
10) Check operation of the cad cell relay by
removing one cad cell wire from external
terminal during the flame cycle. The relay
should cut the burner off in approximately 15
to 45 seconds, depending on the control
provided. See the burner manufacturers
manual provided in the data pack.
Servicing the Boiler/Burner Unit
1) Burner Components: If replacement of burn-
er parts is necessary, always use parts rec-
ommended by the manufacturer. Specify part
number and description when ordering.
2) Electrode settings are important for reliable
ignition of the oil. Check to be sure the set-
tings are in accordance with the instructions
provided in the burner manual.
3) Nozzles: The nozzle specifications listed in
the manual are the result of years of exhaus-
tive engineering testing. ANY NOZZLE
REPLACEMENT SHOULD BE OF THE
EXACT TYPE AS LISTED IN THE SPECIFI-
CATIONS. Use extreme care in handling noz-
zles to avoid scratches or dirt that could
cause leaks or affect the oil spray pattern.
4) Fan and blower housing should be kept
clean of dirt and lint. If heating unit is located
near an unvented dryer, special care must be
taken so that lint does not clog the burner air
inlets.
5) Replace the oil filter cartridge annually.
6) Cleaning the Boiler: Cleaning should be done
only by a trained, experienced serviceman.
Turn power off to the boiler. To clean the
boiler, remove the flue pipe, jacket top and
flue collector. Remove the baffles then clean
the tubes with a soft 2" flue brush. Reinstall
parts, readjust and clean the burner if
required.”
CAUTION
Si ce this u it utilizes a fiber combustio chamber
the careful use of a soft flue brush is highly
recomme ded. I additio , be especially careful
whe clea i g the chamber with a vacuum
clea er.
Instructing the Homeowner
The operation and care of the heating system
should be explained to the homeowner, including
the simple checks to make before calling for ser-
vice if the burner fails to operate automatically.

5
INSTALLATION DIMENSIONS
Figure 1
Note: The circulator may be located on the supply side piping i desired.
WIRING DIAGRAM
SINGLE ZONE
Figure 2

6
WIRING DIAGRAM
MULTI-ZONE WITH CIRCULATORS
Figure 3
WIRING DIAGRAM
MULTI-ZONE WITH ZONE VALVES
Figure 4

7
14
8
k
l
n
MAKE UP
WATER
9
n
n
3
n
2
n
1
n
6
n
7
k
n
OPEN DISCHARGE
PIPING TO DRAIN
mm
SUPPLY TO
HEATING CIRCUITS
5
RETURN FROM
HEATING CIRCUITS
l
MAKE UP
WATER
14
8
n
9
n
n
2
n
1
n
6
n
7
k
n
OPEN DISCHARGE
PIPING TO DRAIN
m
SUPPLY TO
HEATING CIRCUITS
5
RETURN FROM
HEATING CIRCUITS
l
l
m
12
n
l
l
4
n
13
4
n
l
l
k
HOT WATER OUTLET
n
TO
DISHWASHER
TEMPERED
HOT
WATER
COLD WATER
SUPPLY TO COIL
k
k
k
TEMPERING/
MIXING
VALVE
n
PIPING DIAGRAMS
Figure 5
Note: the circulator may be located on
the supply side piping i desired.
Figure 6
By-Pass Piping Figure 7
TANKLESS WATER
HEATER PIPING
LEGEND
1. FLOW CHECK VALVE
2. PRESSURE RELIEF VALVE
3. CONVENTIONAL EXPANSION TANK
4. AUTOMATIC AIR VENT
5. BALANCING COCKS
6. DRAIN VALVE
7. CIRCULATOR
8. PRESSURE REDUCING VALVE
9. SHUT OFF VALVE
10. TEMPERING VALVE
11. FLOW REGULATOR
12. AIR PURGER
13. EXPANSION TANK (PRESSURIZED)
14. AUTOMATIC REFILL
14
8
k
n
MAKE UP
WATER
9
n
n
3
n
2
n
1
k
n
OPEN DISCHARGE
PIPING TO DRAIN
mm
SUPPLY TO
HEATING CIRCUITS
l
n
6
n
75
RETURN FROM
HEATING CIRCUITS
l
BY-PASS

e•f•m•
VT SERI E S
S/N:
1.10
154,000
131,500
113,000
270
30
1.35
189,000
159,500
137,000
270
30
1.65
231,000
193,000
166,000
270
30
VT 1000E
MODEL:
Firing ate G.P.H.:
Input BTU/H :
DOE Cap. BTU/H :
Net ate BTU/H :
Val. Cap. Lbs/H :
Max W.P. Water PSI:
Boiler to be installed in a level position in
accordance with NFPA 31 and local codes.
STANDA D CLEA ANCES
Front 24"
Sides 6"
ear 6"
Top N/A
Chimney Connector 18"
EMMAUS, PA
e•f•m•
VT SERI E S
S/N:
0.65
91,000
77,000
67,000
140
30
0.85
119,000
100,000
86,000
140
30
1.00
140,000
116,000
100,000
140
30
VT 700E
MODEL:
Firing ate G.P.H.:
Input BTU/H :
DOE Cap. BTU/H :
Net ate BTU/H :
Val. Cap. Lbs/H :
Max W.P. Water PSI:
Boiler to be installed in a level position in
accordance with NFPA 31 and local codes.
STANDA D CLEA ANCES
Front 24"
Sides 6"
ear 6"
Top N/A
Chimney Connector 18"
EMMAUS, PA
SERVICEMAN LABELS
CC-6691
9/08-250