9
Press the
Start button at the desired starting time for the UnOccupied period. Once the Start button is pressed, the 368 enters the
UnOccupied period at the same starting time each day.
Example The user wants an UnOccupied period starting at 10 pm and ending at 6 am. The
Unoccupied Duration dial is set to 8 hours
and the
Start button is pushed at 10 pm. Once the Start button is pushed, the control goes into UnOccupied mode from
10 pm until 6 am the next morning. This cycle is repeated 7 days a week.
DIP Switch Settings
Occ / UnOcc — Occ. Only
Each zone can be selected to operate in either Occupied only mode or both Occupied
and UnOccupied modes. If the DIP switch is set to
Zone 1 Occ. only, the zone
connected to relay
1 remains in Occupied mode at all times. If the DIP switch is set to
Zone 1 Occ / UnOcc, zone 1 is switched into UnOccupied mode each time the 368
receives an UnOccupied signal. Zones
2, 3, and 4 are set in a similar manner to that
described above for zone 1. If Two Stage zones are used, the DIP switches for both
output relays should be set to the same postion.
Optimum Start
The Optimum Start / Stop feature is used during transitions between the UnOccupied
mode (Night Setback) and the Occupied mode. When the DIP switch is set to
Optimum
Start, the 368 raises the building temperature during the final stages of the UnOccupied
period. This helps ensure the building is at the Occupied temperature as soon as the
Occupied period begins. If the
Optimum Start DIP switch is set to Off, the 368 does not
start raising the building temperature until the UnOccupied period ends. More informa-
tion on the Optimum Start feature is provided on page 3 of this brochure.
Thermal Motor
Zone valves with thermal actuating motors have long opening and closing times. In
order for the 368 to compensate for these longer times, the DIP switch should be set
to
Thermal Motor. If fast acting electric motor zone valves or zone pumps are used, the
DIP switch must be set to
Off.
Testing the Control Functions
STEP SEVEN
OPERATIONAL TEST OF CONTROL FUNCTIONS
The Zone Control 368 has a test routine which is used to test the main control functions. The 368 continually checks the sensors and
displays an error message whenever a fault is found. See page 11 for the list of error messages. When the
Test button is pushed, the
Test light is turned on. The Heat Required, and Optimum Start / Stop lights are turned off and the individual outputs and relays are tested
in the following test sequence.
Test Sequence
Each step in the test sequence lasts 10 seconds. At the end of each step, the device
continues to operate until it is turned off in a later step.
During the test routine, the test sequence can be paused by pressing the
Test button. The
test sequence remains paused at that point for up to 5 minutes. If the
Test button is not
pressed again while the test sequence is paused, the control exits the entire test routine.
Once the test sequence is paused, the
Test button can be pressed again to skip to the
next step. This can also be used to rapidly skip through the test sequence. To reach the
desired step, repeatedly press and release the
Test button until the appropriate device
and indicator light turn on.
Step 1 - The System Pump relay is turned on.
Step 2 - If the Com 3-4 common block is used for a single One Stage zone, the control
turns on relay
3 for 10 seconds.
- If the
Com 3-4 common block is used for two One Stage zones, the control turns
on relay
4 for 10 seconds and then turns off relay 4 and turns on relay 3 for
10 seconds.
- If the
Com 3-4 common block is used for a Two Stage zone, the control turns
on relay
3 and then, after 10 seconds, turns on relay 4 as well.
- If an RTU is not connected to
RTU 3 or RTU 4, the control skips this step.
Step 3 - The control tests relays 1 and 2 using the procedure described in Step 2.
Occ/UnOcc
Occ. only
Zone 1
1
2 3
4
Off
Thermal Motor
Off
Optimum Start
Test
1
System Pump
System Pump
Zone 2 / Hi stage
Zone 3 / Lo stage
Zone 4 / Hi stage
Zone 1 / Lo stage
1
2
4
3
2
1
