
© 2014 284_D - 08/14
21 of 60
A Watts Water Technologies Company
Schedule Type
Day 24 Hour 5-2 5-11 7 day
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Events / Day
The events / day can be either 4 or 2. An event is a time at
which the control changes the target temperature. The event
time can be set to the nearest 10 minutes. If you wish to have
the thermostat skip the event, enter “--:--“ as the time. The “--:--“
time is found between 11:50 PM & 12:00 AM. See the table,
Events / Day, for more details regarding types of events.
Events / Day Event 24Hr Sat Sun Mon Tue We Thu Fri
4 events per day
Occupied 1
6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM
UnOccupied 1
8:00 AM 8:00 AM 8:00 AM 8:00 AM 8:00 AM 8:00 AM 8:00 AM 8:00 AM
Occupied 2
6:00 PM 6:00 PM 6:00 PM 6:00 PM 6:00 PM 6:00 PM 6:00 PM 6:00 PM
UnOccupied 2
10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM
or
2 events per day
Occupied
6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM
Unoccupied
10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM
The control has a built-in time clock to allow the control to operate on a schedule. A battery-less backup allows the control to
keep time for up to 4 hours without power. The time clock supports automatic adjustment for Daylight Saving Time (DST) once
the day, month, & year are entered. Use the Time menu to set the correct time, day, month, & year.
The Setback / Off DIP Switch must be set to Setback before the Time menu can be accessed.
Time Clock
tekmarNet
®
4 Communication
The 284 can communicate with tekmarNet
®
Thermostats, Wiring
Centers & Setpoint Controls to maximize system efficiency &
comfort. The 4 tN4 bus connections on the 284 use the boil
water temperature. No mix temperatures are available to the
284. tekmarNet
®
Thermostats enable the Indoor Temperature
Feedback feature on the 284. This allows water temperatures
to be adjusted to compensate for both indoor & outdoor tem-
peratures. Each bus can include up to 24 devices, providing
a total of 96 on the tekmarNet
®
network.
Cycle Length Setting in Adjust Menu (tN4)
-------
The control includes an adjustment for the cycle length. The
cycle length adjustment allows for synchronization of tN4 zones.
An Auto setting allows for the cycle length to be automatically
calculated to balance equipment cycling & comfort.
In the tekmarNet
®
4 system, all of the tekmarNet
®
4 Thermostats
determine the best cycle length for their zone. The thermostats
look at trying to maintain the longest possible cycle length while
keeping temperature swings to a minimum. The Thermostats
do this every cycle & send their ideal cycle length time to the
284. In order to operate the system as efficiently as possible, all
of the zones must operate based on the same cycle. In order to
do this, the 284 listens to all of the cycle length requests from
all of the tekmarNet
®
4 Thermostats. The 284 then determines
the average cycle length & sends this information to all of the
tekmarNet
®
4 Thermostats, allowing them to operate on the
same cycle.
Indoor Temperature Feedback (tN4)
--------------
Indoor feedback applies when the 284 is connected to a
tN4 Thermostat network operating on a boiler bus. Indoor
temperature feedback fine tunes the water temperature of the
system based on the requirements of the thermostats. Each
thermostat tells the tN4 System Control the water temperature
that it requires to heat its zone.
Device Count (tN4)
-------------------------------
-------------------------------
The control includes a device count of all the tN4 devices
connected to each of the four buses. This item is always
found in the Toolbox Menu called BUS(#) DEV. Use this to
confirm that the correct number of devices are connected
to the boiler bus.
Scenes
-------------------------------------------
-------------------------------------------
The 284 will respond to the following tekmarNet
®
scenes:
Scene
Response
1Occupied or Schedule
2 Away, operates Room at 62°F (16.5°C) & there
is no DHW heating
3Permanent Unoccupied
4Occupied or Schedule
5Occupied or Schedule
6 Temporary 3 hour Occupied
7 Temporary 3 hour Occupied
8 Temporary 3 hour Occupied
Comentários a estes Manuais