Eliminate System Air; Fill The Boiler With Water; Gas Supply Piping - FULTON Endura EDR-750 Installation And Operation Manual

INSTALLATION
ƒ Eliminate System Air
– NOTEE: There are no built-in boiler air eliminating features.
Adhere to the following for air elimination:
1. The installation of an air separator and air eliminator (air
vent) is required.
2. To prevent scale corrosion in boiler and associated
piping, make up water must be kept to a minimum. This
is best achieved by ensuring immediate repair of all
leaks and that system pressure is maintained.
3. If a sealed diaphragm-type expansion tank is used,
install an air eliminator in the hot water piping at the air
separator on the suction side of the system circulator(s).
4. If an air cushion type expansion tank is used, pipe tank
directly into boiler supply on the suction side of the
system circulator(s).
5. On multi-zoned systems (or a system with both space
and domestic water heating), air elimination must be
provided either in the common piping or on every loop.
6. When the boiler is installed at a higher level than
baseboard radiation (if used), air elimination must be
provided directly above the unit.

Fill the Boiler With Water

To be sure that the boiler is not air-bound, open the pressure-
relief valve located at the rear of the boiler. Leave the relief
valve open until a steady flow of water is observed. Close the
valve and finish filling the system.
Lockup Regulator
with Integral Vent Limiter
FIGURE 8 - TYPICAL GAS TRAIN (VARIES BY SIZE/MODEL)
UPDATED TO COMPLY WITH NEW GAS TRAIN
A
2-12
-
REV
Fuel Train Inlet
Note: Measure Inlet
gas pressure here
UNLESS OTHERWISE NOTED
DIMENSIONS ARE IN INCHES
K.D.B.
TOLERANCES
--- --- --- ---
FRACTION & 1 /8
`
LAYOUT. B.M.P. 12/16/2015 12/16/15 WHOLE VALUE
(1) PLACE DEC. 0.03
`
(2) PLACE DEC. 0.015
`
(3) PLACE DEC. 0.005
INITIAL RELEASE --- --- --- --- --- `
ANGLE 0.5 DEG
`
SURFACE FINISH
REVISION DESCRIPTION B.O.M. ELEC. ENG MECH. ENG CHECKED APPROVED
250 MICRO-INCHES
REVISION HISTORY

Gas Supply Piping

The Endura is a gas fired fully modulating boiler that requires
gas delivery at a relatively constant pressure and calorific
content. This ensures efficient and reliable combustion. A
lock-up style regulator is factory-mounted in the gas train. Do
not modify the gas train.
The packaged gas train (See Figure 8) is configured to operate
at specific gas pressure requirements. The requirements are
detailed on the boiler name plate, located on the back of the
boiler.
The Endura boiler is factory test fired and combustion is
adjusted per the boiler data plate and test fire sheet.
FIGURE 9 - MEASURING INLET GAS PRESSURE
Main Gas Valve
(see Figure 26)
ISOMETRIC VIEW
(PARTIALLY EXPLODED FOR CLARITY)
This design and drawings DRAWN BY: MECH. ENG: JOB NUMBER:
The items shown in this
M.BERWALD 9/14/2014 SMT 9/24/2014
are proprietary and are the
drawing may be covered
exclusive property of The
by one or more patents of
Fulton Companies. The The Fulton Companies. CHECKED BY: ELEC. ENG: PROJECT NAME:
corporation does not
MEH 9/24/2014 N/A
permit their use except
with prior written consent.
B.O.M. REVIEW APPROVED BY: PROJECT MANAGER:
THIRD ANGLE PROJECTION N/A D.MCNITT 9/29/2014
1 OF 1
EDR-IOM-2019-0212
Ignition Enrichment Regulator
with Integral Vent Limiter
NOTES:
1. REFERENCE DRAWING ONLY INTENDED FOR GENERAL LAYOUT
PURPOSES ONLY.
DESCRIPTION:
TYPICAL ENDURA FUEL TRAIN
The Fulton Companies
972 Centerville Road
Pulaski, New York USA 13142
DRAWING NUMBER
© Fulton Group N.A., Inc. 2019
G-35-100009
SHEET 1 OF 1
SECTION 2
Measure
inlet supply
gas pressure
here
REV
A