18
Schedules Group —
This group includes Schedule I
and II, Timed Discrete Output, Timed Override, Adaptive Op-
timal Start, and Adaptive Optimal Stop (available on CV units
only).
TIME SCHEDULES — Time Schedule function provides
two separate schedules from the unit controls. Schedule I is
provided for unit operation as a means to automatically switch
back and forth from Unoccupied to Occupied modes. Sched-
ule II provides a means to automatically change the Discrete
Device Output (for control of outdoor building or parking lot
lights).
Each schedule consists of 1 to 8 occupied time periods that
are set by the user through the function on the HSIO.
NOTE: A control relay for external device control (see Timed
Discrete Output) is required for Schedule II.
Sequence of Operation
Schedule I — When the schedule changes from Unoccupied to
Occupied modes (or vice versa), the Master Loops will change
their priorities and control the submaster reference values
according to user configuration instructions for unit Unoccu-
pied or Occupied mode.
Schedule II — See the Timed Discrete Output section below.
Configuration
— To configure Time Schedule set points, enter
the Set Point function and the Date and Time subfunction by
pressing and . To set the Day of the Week and Time,
scroll down to DOW. The current day, hour, and minute will be
displayed (where 1 = Monday, 2 = Tuesday, and so on). To
change the day and time, press the numbers of the new set
point (example: would be Monday,
2:30 PM) and then press .
To set the Month, Day, and Year, scroll down to MDY. The
current month, day, and year will be displayed (mm.dd.yy). To
change the month, day, and year, press the numbers of the new
set point (example : which would
be May 14, 1998) and then press .
To Set Daylight Savings Time and Set Occupancy Sched-
ules, Schedule I, see the Program Time Sequences on page 52.
See Table 16.
TIMED DISCRETE OUTPUT — The unit control can be
programmed with a unique time schedule (separate and differ-
ent from the unit Occupied/Unoccupied schedule) that may be
used to control an external function or device (such as parking
lot lights) without adding a discrete timeclock device. This
schedule is designated as “Schedule II.”
A special relay (P/N HK35AB001) with a 20 vdc coil is
required.
Sequence of Operation
— From Schedule II, when time
schedule indicates Unoccupied time, the control output is off.
When time schedule indicates Occupied time, control output is
on (relay energized).
Configuration
— To configure:
1. Connect control wires from external controlled device
at PSIO2 Channel 44 (terminals J6/41 and J6/42).
2. Enter Time Schedules. Press . (See Sched-
ule Function section on page 52 for detailed instruc-
tions.) Define Period 1 (Occupied, Unoccupied).
Define Periods 2 thru 8 (as required).
TIMED OVERRIDE — The Timed Override mode allows an
occupant to return a system that is in Unoccupied status to Oc-
cupied status, for period of 1 to 4 hours (user-configured).
Timed Override is Mode 38. The Timed Override function can
be user-configured to return only the unit, the Timed Discrete
Output, or both to Occupied status. A T-55 space sensor
(factory-supplied, field-installed) or T-56 space sensor (field-
supplied and -installed) is required.
To activate Timed Override, press the button on face of the
space sensor. The unit control will recognize this signal and en-
able the Occupancy Schedule program to extend the Occupied
period by the configured timed override amount.
To configure Timed Override, perform the following
procedure:
Select which Time Schedules permit the use of override.
Press to enter into the Service function. Enter the pass-
word. Press to enter into the User Configuration sub-
function. Scroll down to TSCH. The current schedule configu-
ration will be displayed. A 1 represents Unit schedule only
(Time Schedule I). A 2 represents Timed Discrete Output only
(Time Schedule II). A 3 represents both Schedules I and II.
Press the number of the desired configuration and press .
Configure the duration for Timed Override (Schedule I).
Press to enter in to the Service function and the Over-
ride subfunction. Scroll down to TOVR. The number of over-
ride hours will be displayed. The default is 1 hour. The range is
1 to 4 hours. To change the configuration, press a new number
(example: ) and .
One-Time Period Override
— As an alternate way to initiate
override, a service technician may initiate Timed Override
from the HSIO, for a one-time period.
To initiate an override for Schedule I, press to enter
into the Schedule function. Scroll down to OVRD. The current
override time will read 0. Press the number of the desired over-
ride time and press . The acceptable range of values is 0 to
4 hours. At end of this time override event, the entered OVRD
values will be reset to zero.
To initiate an override for Schedule II, press to
enter into the Schedule function. Scroll down to OVRD. The
current override time will read 0. Press the number of the de-
sired override time and press . The acceptable range of
values is 0 to 4 hours. At end of this time override event, the
entered OVRD values will be reset to zero.
Table 16 — Configuring Day of Week/Time of Day
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
DESCRIPTION HOW TO CONFIGURE AT HSIO SET POINT RANGE
Set Day of Week
DOW Monday = 1; Tuesday = 2; etc.
Set Time of Day
TIME
hh.mm (military time)
(use for‘‘:’’)
Set Daylight Savings Time
(see Table 49)
Set Occupancy Schedules
(see Table 50)
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