Table of Contents
Advertisement
INSTALLATION
ƒ Prevent Oxygen Contamination
There are several ways to prevent boiler water oxygen
contamination:
ƒ Minimize system leaks to minimize make up water
requirement.
ƒ Do not use open tanks or ttings.
ƒ Do not use oxygen permeable materials anywhere in
the water system.
ƒ Repair leaks in the system quickly.
ƒ Eliminate ttings wherever possible.
ƒ Use air elimination devices in system piping.
ƒ Eliminate System Air
–
NOTE:
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.
2-12
EDR-PURE-IOM-230608
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 ow of water is observed. Close the
valve and nish lling the system.
Gas Supply Piping
This boiler features a gas red fully modulating burner
requiring gas delivery at a relatively constant pressure
and calori c content. This ensures e cient and reliable
combustion. Do not modify the gas train.
The gas train (See Figure 8) pressure requirements are
detailed on the boiler data plate, located at the rear of the
boiler.
This boiler is factory test red and combustion is adjusted per
the factory Test Fire Report.
Main Gas Valve
FIGURE 8 TYPICAL GAS TRAIN
VARIES BY SIZE/MODEL
SECTION 2
Fuel Train Inlet
Note: Measure Inlet
gas pressure here
Gas Control
Servo Valve
© Fulton Group N.A., Inc. 2023
Advertisement
Table of Contents
