Fulton Endura (EDR) Condensing Hydronic Boiler - Manual (Page 14)

© The Fulton Companies 2014
INSTALLATION
EDR-IOM-2014-0318
SECTION 2
2-8
FIGURE 3 - SAMPLE PIPING LAYOUT
MOTORIZED
ISOLATION VALVE
(OPTIONAL)
SYSTEM
RETURN WATER
AIR
SEP
ARA
TOR
MAKE UP
WATER
AIR SEPARATOR AND EXPANSION
TANK AS DETERMINED
APPROPRIATE BY OTHERS
SYSTEM PUMPS AND VALVES
AS DETERMINED
APPROPRIATE BY OTHERS
EXPANSION
TANK
SYSTEM
SUPPLY
WATER
 Makeup water pH range must be 7.5 - 8.8; the boiler
water must be maintained within pH range of 8.5 -
10.5.
4. Operate the boiler in a closed-loop system using water
or water/glycol (not requiring a make-up water supply).
A large amount of improperly treated make-up water
can cause premature failure of the heat exchanger
resulting from scale build up. Scale build up will reduce
the effi
ciency and useful life of the boiler and is not
covered under warranty.
5. For freeze protection an inhibited propylene glycol
is recommended. Only use mixtures formulated for
hydronic systems. Do not use automotive glycol.
6. At a minimum, the hydronic fl uid should be checked for
glycol concentration and pH once a year.
Note: Sample piping layout (P&ID) is a general representation of system installation. Good practice should be used in system design,
including but not limited to adequate pipe/valve sizing and natural fl ow path for system water.
 Prevent Oxygen Contamination
There are several ways to prevent boiler water oxygen
contamination:
 Minimize system leaks to minimize make up water
requirement
 Do not use open tanks or fi ttings
 Do not use oxygen permeable materials anywhere in
the water system
 Repair leaks in the system quickly
 Eliminate fi ttings wherever possible
 Use air elimination devices in system piping