Temperature Override; Changing Fahrenheit ("F) To Celsius ("C); Changing 12 Hour Time To 24 Hour Time; Power Failures - Robertshaw 300 Installation & Programming Manual

TEMPERATURE OVERRIDE

Temporary Override (3 hours)
You may temporarily change the temperature setting at any time without
affecting the program.
Press theeor@ buttons. The current event temperature and mode of
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I?
operation will be displayed. Press the@o@buttons again to temporarily
adjust the temperature. This temperature will be maintained for three hours.
To cancel, simply press the RESUME button.
1&3cIFu
Temporary Override w/keyboard l&ed (1 hour) (300-225,30&227,300-229)
You may temporarily change the temperature setting at any time without
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affecting the program, even though the keypad is locked out.
Press theaor@ buttons. The display will show the temperature for the first
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event. Press theaor@ buttons again to temporarily adjust the temperature
+/-3 degrees. This temperature will be maintained for one hour.
Continuous Override (Hold)
You may also maintain a constant temperature setting at any time without affecting the program.
1. Press and release the MODE button until the desired mode is displayed
2.
Press and release the HOLD button. "Hold" will be displayed.
3. Press theaor@ buttons to adjust the temperature. This temperature will be maintained
indefinitely. To cancel, simply press the RESUME button.
Note: If the
AUTO mode is used, press the MODE button, then press theaor@ buttons to
select a heating setpoint. Press the MODE button, and then
select a cooling setpoint.

TYPICAL RESIDENTIAL SCHEDULE (3000224,300-226,300-230)

Tempemture
Settings
HEAT
'JOFINING &
COOL
HEAT
_;Q_
DAY
/.
COOL
HEAT
EVENING s
COOL
HEAT
NIGHT
'
t
COOL
The first thing to do before programming your thermostat
levels for each day as to temperature and time. Shown above is a typrcal schedule.
comfort
On the weekdays, after the temperature has been lowered all night, it would be typical to have
the thermostat begin to warm the house at 6:00 AM, if you get up at 700 AM. At 9:00 AM, after
everyone has left for the day, the thermostate can be set to lower the temperature to save you
energy during the day. Before anyone arrives home in the afternoon, the temperature may again
be increased to provide comfort for you when you return. Finally, at bedtime, the thermostat
again lowers the temperature to save you energy all night.
On Saturday and Sunday when everyone is home, the temperature comes up to 68°F at 8:00
AM and stays there all day until lo:30 PM when the temperature sets back to 62°F.
-
(Heat Auto
press theaor@ buttons to
28
WsskendTlms
wwkdsy Tllns
AM/PM
AM/PM
68
6:00 AM 8:00 AM
72
64
8:CQ AM
9.00 AM
85
68
800AM
330PM
72
62
1030PM
10.30 PM
78
to determine your
own personal
IS
30
CHANGING FAHRENHEIT (OF) TO CELSIUS ("C)
This thermostat is preset to display the temperature in Fahrenheit. You
to readout in Celsius. To change from one to the other, simultaneously press theaand@
buttons. The display will change automatically.

CHANGING 12 HOUR TIME TO 24 HOUR TIME

This thermostat is preset to display the standard 12 hour time format. You may change the
display to readout in the 24 hour time format. To change from one to the other, press and
release the CLOCK button, then press the MODE button. The display will change automatically.

POWER FAILURES

This Robertshaw thermostat will maintain the program settings dunng any type of power failure.
If power fails, "AC" will be displayed for 30 minutes. After 30 minutes, the display will go blank.
If power is restored within the first 30 minutes, the thermostat will resume normal operation. If
power is restored after 30 minutes, "12:OO AM" will flash, and the thermostat will control to the
- Off - Cool)
night event setpolnt until the clock
normal operation.

OUTDOOR TEMPERATURE INDICATOR (OPTIONAL)

If your Robertshaw thermostat has been installed with an outdoor remote sensor, you can view
the outdoor temperature by simply pressing and holding the OUTDOOR button. The thermostat
will return to normal operation automatically.

PLANNING YOUR SCHEDULE (3001224,300-226,300.230)

To help save programming time, we suggest you use the worksheet below to set-up your
specific program.
It is suggested that you set your desired program times about
actually require your home to reach the set temperature. So, if you get up at 7:00 AM, set the
wake up temperature to come on at 6:00 AM.
Note: If you plan to use the Automatic Changeover Mode, you can not set your heating and
cooling temperatures closer than 2 degrees apart for the same program period.
Programming Chart
Temperature Bettlngs
NIGHT
I
is reset. Once the clock is reset, the thermostat will resume
2 9
weskdsy Time
AM/PM
c lEz+
31
change the display
may
hour before the time that you
1
Weekend Time
AM/PM