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CTV-PRC007-EN20
System
Options
Auxiliary
Condenser
Auxiliary Condenser
The Trane auxiliary condenser provides
economical heat recovery for
applications with small heating demand.
It’s well-suited to preheat applications
including domestic hot water, boiler
makeup water and swimming pools.
The Trane auxiliary condenser option
consists of a separate condenser
connected in parallel with the standard
condenser to provide simple heat
recovery capability for applications
where full heat recovery or high heating
water temperatures are not required.
Heat which normally would be rejected
to the regular condenser water is picked
up in the auxiliary condenser before the
water enters the hot water heating
system. Typical uses for this water
include domestic water preheat, boiler
makeup water preheat, and reheat air
conditioning systems, as opposed to
traditional heat recovery applications
where higher temperature water is used
to satisfy a building heating load,
provide full heat input for domestic hot
water, or provide the typically larger flow
rates of hot water for process
applications.
The auxiliary condenser not only
captures energy otherwise lost, it also
increases chiller efficiency.
Auxiliary condensers are available in two
sizes: standard and large. Because the
auxiliary condenser is a separate
condenser, there is no cross
contamination between the cooling
tower water and the heat recovery water
circuits.
No temperature controls are required.
Auxiliary condensers are factory
mounted and tested.
Benefits
Simplicity
No temperature controls are required.
Auxiliary condensers are factory-
mounted and tested.
Flexibility
Two auxiliary condenser sizes are
available — standard and large. Either
auxiliary condenser can be applied to
any size CenTraVac
™
.
Safe
Because the auxiliary condenser is a
separate condenser, there is no
possibility of cross contamination
between the cooling tower water and the
auxiliary condenser water circuits.
Efficient
Use of the auxiliary condenser option
actually increases the chiller’s efficiency
by increasing condenser heat transfer
surface area and lowering the pressure
differential the compressor must
generate.
Decreased life cycle operating costs
result through use of the auxiliary
condenser option because heat, which
normally would be rejected by the
cooling tower circuit, is now used for
building heating requirements.
Application
A simultaneous demand for heating and
cooling is necessary to apply any heat
recovery system. Common uses for
heated water from an auxiliary
condenser include domestic water
preheat, reheat air conditioning systems,
and boiler makeup water. Building use is
not limited to the traditional heat
recovery candidates. Schools, hospitals,
office buildings, and hotels have all
proved to be excellent applications for
the auxiliary condenser option.