Penn System 450 C450RBN-1, Руководство по установке

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Figure 71: Example System 450 Reset Control weekly occupied/unoccupied setback schedule
Relay Output that references an
Input Sensor
See System 450 menu flow example . During the occupied
time, OUTR4 relay turns ON at 55°F (13°C) and turns OFF
at 65°F (18.5°C). During the unoccupied times with SbK =
0F° (0C°), there is no change to the On and OFF points.
Analog Output that references an
Input Sensor
An analog output can be added to a Reset control system
and controlled by Sn-1, Sn-2, or Sn-3. This analog output
can also be Setback according to the Time Clock Schedule.
For example, if SbK = -5F° (-3C°) is selected in the OUTA
setup screens, then during the unoccupied times, the SP
becomes 5F° (3C°) lower and the EP becomes 5F° (3C°)
lower.
Note: Setback set point temperature does not
exceed MXSP or go lower than MNSP. In reset, MNSP
and MXSP are the limits to set point excursion.
Relay Output and Analog Output
that reference the Reset function
During the occupied time, the RSP is calculated using the
Reset Applications from Figure 14. During the unoccupied
time with the SbK = -10F° (-5.5C°), the RSP is calculated
and 10F° (5.5C°) is subtracted. Using the example in this
procedure, the RSP would change from 153°F (67°C) to
143°F (61.5°C) during the unoccupied times.
The load balancing feature is not effected in its function
as a result of Occupied/Unoccupied modes.
See Figure 3.
1. In the Occupied/Unoccupied Schedule Setup
Start screen, press Next to go to the Day 1 (SUN)
Occupied Time Selection screen. The Occupied/
Unoccupied Schedule Setup Start screen is displayed
when you access the System 450 setup screens and
scroll through the Setup Start screens by pressing M
repeatedly. See the Occupied/Unoccupied Schedule
Setup Screens row in the setup screens flow chart in
System 450 menu flow example .
Note:
- To use the System 450 Setback feature,
you also must select a Setback (SbK)
value for the outputs you want to set
back and you must set up the (real) time
and day of week. See Setting up the
System 450 Reset Setpoint and Setting
up System 450 Outputs for selecting
output Setback (SbK) values. See Setting
up time and day of week for setting up
time and day of week.
- You must set up the time and day of
week before the schedule takes effect.
You can select the output setback (SbK)
values at any time.
The following figure shows the Occupied/
Unoccupied Schedule Setup Start screen
with flashing dashes. The remaining screens in
this procedure show how to set up the weekly
schedule shown in Figure 71.
Figure 72: Occupied/Unoccupied Schedule Setup Start
screen
System 450 Series Reset Control Modules with Real-Time Clock and Relay Output Installation Guide 22