TriangleTube Instinct COMBI 155, Инструкция по установке и обслуживанию

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25
CHAPTER
4
CHAPTER 4 - BOILER PIPING
4.9.6 System Piping – Through Boiler
Fig. 15 on page 26 and Fig. 16 on page 27 illustrates
a multiple zone valve system with a single system/boiler
circulator. A by-pass loop with a pressure differential
valve must be installed on the system piping.
Fig. 17 on page 28
illustrates a single zone system
utilizing the boiler circulator as the system circulator.
4.9.7 System Piping – Radiant Heating
The heat exchanger design of the INSTINCT Combi
allows operation in a condensing mode. This feature
requires no regulation of the return water temperature
back to the boiler in radiant heating applications. The
design and construction of the INSTINCT Solo heat
exchanger allows the installation of the boiler on
systems with non - oxygen barrier tubing.
The boiler water supply temperature can be maintained
by the INSTINCT Combi, potentially eliminating the
need for a mixing system to achieve the desired
temperature if all zones of heat require the same
temperature setpoint.
It is recommended to install a high temperature limit to
ensure that the primary supply temperature does not
exceed the maximum allowable temperature for the
radiant tubing.
The addition of a high temperature limit is
important if the INSTINCT Combi is connected
to a domestic hot water system, which requires
a high primary supply water temperature.
Size the system piping and circulator to provide the
flow needed for the radiant system.
4.9.8 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 flow/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 flow/check valves or other
automatic devices to prevent gravity circulation of the
boiler water during cooling cycles.
NOTICE
4.10. Optional System Piping and Cascading
Several additional configurations (cascading, etc.) are
possible with INSTINCT Solo Units, provided an optional
wiring kit is used. Please refer to
Fig. 13 on page 22
for more information.