IDEAL EXALT COMBI Installation & Maintenance Manual

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CHAPTER 4
CHAPTER 4 - BOILER PIPING
To ensure an adequate flow rate through the EXALT
Solo, the boiler supply and return piping size must be a
minimum of 1 inch for the EXALT Solo 110, 1-1/4 inch for
the EXALT Solo 155/199.
4.7.11 System Piping – Special Application
If the boiler is used in conjunction with a chilled water/
medium system, the boiler and chiller must be piped in
parallel. Install ow/check valves to prevent the chilled
medium from entering the boiler.
If the boiler is used to supply hot water to the heating
coils of an air handler where they may be exposed to
chilled air circulation, install ow/check valves or other
automatic devices to prevent gravity circulation of the
boiler water during cooling cycles.
4.7.12 System Piping – Multiple Units Installation
Use a balanced manifold system as the primary /
secondary connection to the space heating piping.
For the space heating piping, refer to the applications
mentioned in this manual or use recognized design
methods.
NOTICE
4.8. EXALT Combi Boiler System Piping
It is recommended on all piping applications to
utilize a primary/secondary piping arrangement as
a means to provide freeze protection of the boiler,
which is an integral function of the boiler control.
Maintain at least the minimum boiler flow rate
shown in the Graphs of Chapter 19 on page 101. For
other piping arrangements, contact Ideal Technical
Support or consult other approved/recognized
design arrangements.
On piping applications utilizing a single zone or
other recognized piping design arrangements, it
is recommended that the installer uses flow/check
valves with weighted seats at or near the EXALT
Combi to prevent gravity circulation.
BEST PRACTICEBEST PRACTICE
Fig. 11 - EXALT Combi Near Boiler Piping - Hydraulic Separator
Cold
Water
Fill
T PT P
System
Supply
System
Return

IDEAL EXALT COMBI Specifications

General

Brand	IDEAL
Model	EXALT COMBI
Category	Boiler
Language	English