Robertshaw 300-201 User Manual
Operating instructions, Description of icons, Dip switch options and functions
DESCRIPTION OF ICONS
Display icons vary according to the model. Your thermostat may
not display all of the icons shown.
DIP SWITCH OPTIONS AND FUNCTIONS
Positioning the DIP switches in either the ON or OFF position
enables you to choose between two different options. The DIP
switches are located on the interior of your thermostat and may
be accessed by following the procedure for removing the thermo-
stat from the subbase. The following list describes your DIP
switch options.
DIP Switch No.
DIP Switch OFF
DIP Switch ON
1
4 minute minimum ON
2 minute minimum
ON
2
Keypad unlock
Keypad lock
3
Fan immediate with heat call
Fan on with
plenum switch
1. 2 Minute or 4 Minute ON Times This option allows you to run
the equipment for either a 2 or 4 minute minimum off and on
time.
2. Keypad Lock
5
In the ON position locks out all buttons except
the OUTDOOR temperature button.
3. Plenum Fan Switch In the OFF position, the fan comes on
immediately with a call for heat. In the ON position, the fan is
controlled by the equipment (plenum switch control).
SPECIFICATIONS
Rated Voltage
20-30 VAC, 24 nominal
Rated A.C.
0.050 Amps to 0.75 Amps continuous
Current
per output with surges to 3 Amps Max.
Rated D.C.
0 Amps to 0.75 Amps continuous
Current
per output with surges to 3 Amps Max.
Control
Heating: 38° to 88°F in 1° Steps
Range
5° to 30°C in 1° Steps
Cooling: 60° to 108°F in 1° Steps
16° to 40°C in 1° Steps
Thermostat
Measurement Range
28° to 124°F or 0° to 48°C
O.D.T. Displayed
Range
-50° to 119°F or -48° to 47°C
Control Accuracy
±0.5°C at 20°C, ±1°F at 68°F
Minimum
(between heating and cooling)
Deadband
2°F or 1°C
NOTE: This thermostat contains electronic circuitry replacing the
conventional mechanical anticipator.
One (1) Year Limited Warranty
The manufacturer warrants to the original purchaser that its
product and component parts will be free from defects in
workmanship and materials for a period of one (1) year from
the
date of purchase. Return to the original point of purchase for
replacement of your product.
Warranty Limitations
This warranty begins at date of purchase.
Warranty is Void if:
The date code is defaced or removed.
The product has a defect or damage due to product alteration,
connection to an improper electrical supply, shipping and han-
dling, accident, fire, flood, lightning, or other conditions beyond
the control of the manufacturer.
The product is not installed according to the manufacturer’s
instructions and specifications.
The product has been installed near sources of electromagnet-
ic interference (EMI) such as arcing relay contact.
Owner’s Responsibility
Provide proof of purchase.
Provide normal care and maintenance.
Pay for freight, labor and travel.
Pay for service calls related to product installation.
Return any defective product.
In no event shall the manufacturer be liable for incidental or
consequential damages.
This warranty gives you specific legal rights and you may have
others which vary by state and/or province. For example, some
states and/or provinces do not allow the exclusion or limitation
of incidental or consequential damages so this exclusion may
not apply to you.
The manufacturer’s continuing commitment to quality products
may require a change in specifications without notice.
This equipment, if installed in strict accordance with the manu-
facturer’s instructions, complies with the limits for a Class B
computing device pursuant to Subpart J of Part 15 of FCC rules.
NEW & IMPROVED FEATURES
Your new electronic thermostat has been made even better by the
introduction of several new and improved features. Building on its
reputation for efficient and dependable operation, your thermostat
now offers the following list of enhancements.
Thermostat and Sensor Calibration
Release 3 provides easy calibration of the thermostat and remote
sensors. Simply press and hold the FAN button for 10 seconds
and adjust with the
¨ or § buttons.
Push Button Auto Repeat
Programming is easier with the push button auto repeat feature.
GENERAL INFORMATION
The thermostat normally displays room temperature, mode of
operation and whether cooling or heating is currently on. The
six buttons on the front of the unit allow complete control of
your equipment.
You may select different heating and cooling setpoints for the
system to maintain, e.g., 70° in heating and 75° in cooling.
Raising or lowering the setpoints in heating or cooling is as sim-
ple as pushing a button. In addition, you may choose to display
the temperature in °F or °C.
The thermostat also allows you to select continuous fan operation
(useful when using an air cleaner), or have the fan come on with
the equipment.
BUTTON FUNCTIONS
Outdoor
Press to display the outdoor temperature (optional)
Mode
Press to select cool only, heat only, auto (cool &
heat) or off
Fan
Press for continuous fan or auto fan
Day/Night
Press to alternate between day and night
temperature setpoints
USER CONTROLS
MODE
Select the desired mode of operation by repeated pressing of the
MODE button:
– Indicates cooling system only (the word COOL is
displayed for 5 seconds)
– Indicates heating system only (the word HEAT is
displayed for 5 seconds)
– Indicates both the heating & cooling systems
(the word AUTO is displayed for 5 seconds)
– Blinking indicates cool ON
– Flickering indicates heat ON
OFF – Disables controller so equipment will not operate
(fan operation is still possible in this mode)
COOLING:
Select the temperature you want your equipment to maintain
while in the COOLING mode by pressing and holding the
¨ or §
buttons. The control setpoint temperature is displayed for 5 sec-
onds.
HEATING:
Select the temperature you want your equipment to maintain
while in the HEATING mode by pressing and holding the
¨ or §
buttons. The control setpoint temperature is displayed for 5 sec-
onds. Your new electronic digital thermostat has been designed
to provide accurate control and display of room temperature. It
will also display all relevant information of the system.
FAN:
The fan will come on automatically when the system is operating,
but there is no indication of this on the display. To select continu-
ous fan operation, press the FAN button and the display will
show
. This is recommended for electronic air cleaners and
continuous ventilation requirements.
TEMPORARY TEMPERATURE OVERRIDE WITH
KEYPAD LOCKED
(The keypad may be locked to prevent tampering by selecting the
ON position of DIP switch #2.)
If the keypad is locked to prevent tampering you may still tem-
porarily adjust the setpoint by ± 3° F or ± 3° C of the pro-
grammed day setpoint. Press the
¨ or § to raise or lower the
setpoint for a 1-hour period.
OFF MODE
To turn off the heating or cooling system, press the MODE button
until the word OFF appears on the LCD. It will remain displayed
until the mode is changed. The OFF mode prevents the system
from being energized.
Avoid using the OFF mode during extremely cold weather to pre-
vent damage to the equipment from freezing.
AUTO CHANGEOVER MODE:
You may set the thermostat to automatically switch from HEAT-
ING to COOLING mode by pressing the MODE button until the
word AUTO and both the heating
and cooling
icons appear
on the LCD. The thermostat will energize the heating or cooling
system based on the temperatures established for both modes.
Operating Instructions
Digital Heating/Cooling Thermostat
1 Heat/1 Cool/Plenum Fan Switch
Non-Programmable Thermostat
Model 300-201
111-102B