Trane IntelliPak 2 Series, Инструкция по установке, эксплуатации и обслуживанию

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18 RT-SVX24Q-EN
Unoccupied Heating — Zone Temperature
When a VAV unit is equipped with gas, electric, or
hydronic heat and is in the unoccupied mode, the zone
temperature will be controlled to within the customer
specified setpoint deadband. During an unoccupied
mode for a VAV unit, the VAV box/unocc relay will be in
the unoccupied position and the VFD output will be at
100%. This means that if there is a call for heat (or cool)
and the supply fan comes on, it will be at full airflow
and the VAV boxes in the space will need to be 100%
open as signaled by the VAV box/unocc relay.
Supply Air Tempering
On VAV units equipped with “Modulating Heat”, if the
supply air temperature falls 10°F below the supply air
temperature setpoint, the heat will modulate to
maintain the supply air temperature to within the low
end of the setpoint deadband.
Supply Duct Static Pressure Control
(Occupied)
The RTM relies on input from the duct pressure
transducer when a unit is equipped with a Variable
Frequency Drive to set the supply fan speed to
maintain the supply duct static pressure to within the
static pressure setpoint deadband. The transducer
compares supply duct pressure to ambient pressure.
Figure 8. Transducer voltage output vs. pressure
input with VCM and Traq™ sensing
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Transducer Voltage Output vs. Pressure Input
Pressure (inches w.c.)
Vo
lt
s
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Space Temperature Averaging
Space temperature averaging for Constant Volume
applications is accomplished by wiring a number of
remote sensors in a series/parallel circuit.
The fewest number of sensors required to accomplish
space temperature averaging is four. The Space
Temperature Averaging with Multiple Sensors figure
illustrates a single sensor circuit (Single Zone), four
sensors wired in a series/parallel circuit (Four Zone),
nine sensors wired in a series/parallel circuit (Nine
Zone). Any number squared, is the number of remote
sensors required.
Wiring termination will depend on the type of remote
panel or control configuration for the system. Refer to
the wiring diagrams that shipped with the unit.
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