Robertshaw | 300-202 | Owner's Manual | Robertshaw 300-202 Owner's Manual

Robertshaw 300-202 Owner's Manual
DESCRIPTION OF ICONS
ing or cooling (single stage) or ON for equipment with 2 compressor stages of heating and/or cooling (multi-stage).
7. LED #1 + Indication In the OFF position LED #1 will light when the
terminal is energized. In the ON position LED#1 will light and a
Filter % icon will be displayed on the LCD when the terminal is
energized.
8. LED #2 + Indication In the OFF position LED #2 will light when the
terminal is energized. In the ON position LED#2 will light and a
Fault $ icon will be displayed on the LCD when the terminal is
energized.
SPECIFICATIONS
Rated Voltage
Rated A.C.
Current
Rated D.C.
Current
Control
Range
Display icons vary according to the model. Your thermostat may
not display all of the icons shown.
Outdoor Hi & Lo Temperature Balance Points (Heat Pump Only)
With the optional Electronic Outdoor Temperature sensor, you can
select the outdoor balance points to inhibit the auxiliary heat
and/or compressor.
HibP – Press and hold the OUTDOOR button, then press the
MODE button. HibP will appear on the display. Raise or lower the
HibP by pressing the or button to set the temperature above
which the Auxiliary heat is locked out. Press the outdoor button
while showing the HibP and the thermostat will switch to show
LobP. LobP is used to lock out the compressor. Outdoor temperatures below the LobP will lock out the compressor. The factory
HibP and LobP setpoints are +48°C and -48°C.
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 thermostat from the subbase. The following list describes your DIP
switch options.
Switch No. DIP Switch OFF
1
Normal
2
Not used (OFF position)
3
4 minute minimum ON
4
Keypad unlock
5
Economy
6
Single stage
7
LED #1+No icon
8
LED #2+No icon
DIP Switch ON
Add On
Not used
2 minute minimum ON
Keypad lock
Comfort
Multi-stage
LED #1+ % Filter icon
LED #2+ $ Fault icon
1. Normal or Add On Heat Pump In the NORMAL position the thermostat will allow the compressor and the auxiliary heat to be on at
the same time. In the ADD-ON position, the compressor is turned
off with a call for auxiliary heat.
2. Not Used This switch must remain in the OFF position.
3. 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.
4. Keypad Lock # In the ON position locks out all buttons except the
OUTDOOR temperature button.
5. Economy/Comfort In the OFF position, the thermostat will be in
ECONOMY mode. In the ON position the thermostat will be in
COMFORT mode, and will satisfy the temperature setting using any
stages necessary.
6. Single or Multi-stage Set to OFF for 1 compressor stage of heat-
Thermostat
Measurement Range
O.D.T. Displayed
Range
Control Accuracy
Minimum
Deadband
20-30 VAC, 24 nominal
0.050 Amps to 0.75 Amps continuous
per output with surges to 3 Amps Max.
0 Amps to 0.75 Amps continuous
per output with surges to 3 Amps Max.
Heating: 38° to 88°F in 1° Steps
5° to 30°C in 1° Steps
Cooling: 60° to 108°F in 1° Steps
16° to 40°C in 1° Steps
28° to 124°F or 0° to 48°C
-50° to 119°F or -48° to 47°C
±0.5°C at 20°C, ±1°F at 68°F
(between heating and cooling)
2°F or 1°C
NOTE: This thermostat contains electronic circuitry replacing the
conventional mechanical anticipator.
300-202
Digital Heat Pump Thermostat
NEW AND IMPROVED FEATURES
USER CONTROLS
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.
MODE
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 simple 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
Select the desired mode of operation by repeatedly pressing 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 and 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)
Eht – Emergency heat
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 seconds.
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 seconds.
Press to display the outdoor temperature (optional)
AUTO CHANGEOVER MODE
Mode
Press to select cool only, heat only, auto (cool and
heat), off, or emergency heat
Fan
Press for continuous fan or auto fan
You may set the thermostat to automatically switch from heating
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.
Day/Night
Press to alternate between day and night
temperature setpoints
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.
Model
Operating Instructions
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 handling, 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 electromagnetic 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 manufacturer’s instructions, complies with the limits for a Class B
computing device pursuant to Subpart J of Part 15 of FCC rules.
FAN: The fan will come on automatically when the system is operating,
but there is no indication of this on the display. To select continuous fan operation, press the FAN button and the display will
show . This is recommended for electronic air cleaners and
continuous ventilation requirements.
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 prevent damage to the equipment from freezing.
TEMPORARY TEMPERATURE OVERRIDE WITH
KEYPAD LOCKED
(The keypad may be locked to prevent tampering by selecting the
ON position of DIP switch #4.)
If the keypad is locked to prevent tampering you may still temporarily adjust the setpoint by ± 3° F or ± 3° C of the programmed day setpoint. Press the or to raise or lower the
setpoint for a
1-hour period.
111-111B
USER CONTROLS (cont)
INSTALLATION INSTRUCTIONS
OUTDOOR (ODT) BUTTON
If your thermostat has been installed with an electronic outdoor
remote sensor (Uni-Line part #10-529), you may view the outdoor
temperature simply by pressing the OUTDOOR button. Upon
releasing the button, the thermostat will once again display the
indoor temperature.
If the option is not connected, the thermostat will display ---.
DAY/NIGHT BUTTON
When the thermostat is initially installed, the display will show the
symbol for your day temperature. By pressing the DAY/NIGHT
button you may select an alternate or night temperature (the
thermostat will remember this setpoint). Simply press the
DAY/NIGHT button to alternate between temperature settings.
CELSIUS / FAHRENHEIT
Simultaneously press and to switch between Celsius (C) and
Fahrenheit (F) temperature display.
REMOTE SENSOR (OPTION)
RS1 – RS2 – RS+V
The thermostat is designed to accept the electronic remote sensor (Uni-Line part #10-528) which will allow you to locate your
thermostat in an area away from view. Indoor and outdoor sensors are available separately.
CAUTION
THIS DEVICE SHOULD BE INSTALLED BY A
QUALIFIED TECHNICIAN WITH DUE REGARD
FOR SAFETY, AS IMPROPER INSTALLATION
COULD RESULT IN A HAZARDOUS CONDITION
LOCATION
To ensure proper operation, the thermostat should be mounted on
an inside wall in a frequently occupied area of the building. In
addition, its position must be at least 18" (46cm) from any outside
wall, and approximately 5' (1.5m) above the floor in a location
with freely circulating air of an average temperature. You should
avoid the following locations:
– behind doors or in corners where freely circulating air is
unavailable;
– where direct sunlight or radiant heat from appliances might
affect control operation;
– on an outside wall;
– adjacent to, or in line with, conditioned air discharge grilles,
stairwells, or outside doors;
– where its operation may be affected by steam or water pipes or
warm air stacks in an adjacent partition space, or by an area
behind the thermostat which is not climate controlled;
– where its operation will be affected by the supply air of an adjacent climate control HVAC device; and
– near sources of electrical interference such as arcing relay
contacts.
CLOCK TERMINALS (OPTION) CLK1 – CLK2
INSTALLATION INSTRUCTIONS (cont)
REPLACING THE THERMOSTAT ON SUBBASE
THERMISTOR MOUNTING INSTRUCTIONS
When placing the front cover on the thermostat ensure the
thermistor is not bent or misaligned.
Ensure that the thermistor does not touch the thermostat case.
The thermistor should be placed horizontal to the wall. Ensure the
thermistor is not pushed upward into the case.
The thermistor should be aligned so it is visible between the ribs
on the bottom of the subbase.
1. Position the thermostat on the
hinged tabs at the top of the
subbase.
2. Gently swing the thermostat
down and press on the bottom
center until it snaps into place.
THERMOSTAT COVER LOCK
You may lock the cover down to
prevent unauthorized access to
the thermostat by adding the
plastic lock (included in the installation bag). Insert the plastic lock
piece into the bottom of the
mounted base. The ends of the
lock piece fit snugly under the
lock pins extending from the bottom of the mounted base. The
tab in the middle of the lock piece
extends down from the base.
To release the locking mechanism, press the lock piece up and
into the base while gently prying
open.
Your thermostat is equipped with a dry contact closure input. By
connecting to any relay-based controller or clock timer, the thermostat can be alternated between the day and night (setback)
temperature setpoints automatically. Upon initial power up of the
thermostat or after a power failure, the thermostat will check the
clock terminals and apply the day (open contact) or night (closed
contact) temperature setpoints accordingly.
Outside rear view with backplate closed
ECONOMY / COMFORT
In the economy mode (switch #5 OFF) your thermostat will not
allow the equipment to be forced on with a change to the temperature setpoint. In the comfort mode, the equipment will turn on
immediately with a change to the temperature setpoint.
WIRING DIAGRAM
CAUTION
TEMPERATURE ACCURACY
Full temperature accuracy will be realized only after the thermostat has been installed and powered for at least one (1) hour.
ADD-ON HEAT PUMPS
Your DSL thermostat is equipped to enhance the performance of
an add-on heat pump. Your thermostat, in most applications, will
perform the function of a fossil fuel kit.
To select ADD-ON, place switch #1 to the ON position. The thermostat will turn the compressor off with a call for auxiliary heat.
When the switch is set to NORMAL, the thermostat will allow the
compressor and the auxiliary heat to be on at the same time.
POWER FAILURES
Your thermostat employs the latest in solid state electronic
technology.
One of the unique features of your thermostat is that no battery is
required to maintain your selected setpoints in the event of a
power loss as the memory is unaffected by power failures of any
duration.
When power is restored, the thermostat will continue operating as
if the power had never been off.
REMOVING THE THERMOSTAT FROM THE SUBBASE
1. Insert a flat blade screwdriver or coin 1/8" into the slot located
in the bottom center of the thermostat case and twist 1/4 turn.
When you feel or hear a click, grasp the case from the bottom
two corners and separate from the subbase. Some models
require more force than others when separating due to the
number of terminals on the subbase.
2. Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
4. Place the rectangular opening in the subbase over the equipment control wires protruding from the wall and, using the subbase as a template, mark the location of the two mounting
holes (exact vertical mounting is necessary only for appearance).
5. Use the supplied anchors and screws for mounting on drywall
or plaster; drill two 3/16" (5mm) diameter holes at the marked
locations; use a hammer to tap the nylon anchors in flush to
the wall surface and fasten subbase using the supplied screws.
(Do not overtighten!)
6. Connect the wires from your system to the thermostat terminals. Carefully dress the wires so that any excess is pushed
back into the wall cavity or junction box. Ensure that the wires
are flush to the plastic subbase. The access hole should be
sealed or stuffed to prevent drafts from affecting the thermostat.
7. Before the thermostat is reinstalled on the subbase, install the
optional clock/timer, indoor remote sensor and outdoor remote
sensor, if used. Refer to the installation instructions supplied
with each option. Also check the position of the DIP switches
on the back of the thermostat.
Power is supplied through the thermostat to the
remote devices. DO NOT connect any other 24V
source to the remote devices.
300-202
(for Release 3)
the thermostat. To remove jumper (labeled JP1) from the printed circuit
board, pull straight out.
• This thermostat may be used with 24 Volt DC. The negative side of the
DC supply must be wired to the 24V (c) terminal.
TERMINAL DESIGNATIONS
Y2 . . . . . . . Compressor is energized for 2nd stage heating or
cooling (if multistage is selected)
W1 . . . . . . Auxiliary heat is energized as back-up or
emergency heat
Y1 . . . . . . . Compressor is energized with a call for heating or
cooling
G. . . . . . . . Fan operates with a call for heating or cooling or by
pressing the FAN button
R . . . . . . . .Independent switching voltage*
24V . . . . . .24 VAC hot and common to power the thermostat
24V(c)
O . . . . . . . .Energizes the reversing valve continuously in cool
mode
B . . . . . . . .Energizes the reversing valve continuously in heat or
off modes
RS2 . . . . . .Use to connect up to 6 indoor and/or 1 outdoor
RS1
remote temperature sensor/s.
RS+V
When connected the thermostat will automatically use
the remote temperature sensor and not its own.
Refer to the instructions included with the sensor.
Notes about the wiring diagram
• The Wiring Diagram shows how the R and 24V terminals are connected
when the shunt is in place and the thermostat and subbase are
snapped together. The dotted lines show the factory-supplied internal
connections.
• If the 24V(c) is not available from the equipment, the shunt may be
removed and a separate 24V transformer must then be used to power
LED1 . . . .Free lights for status or function indication
LED2
CLK1 . . . .Use with dry contact relay or remote clock/timer
CLK2
for alternate setpoints
*Allows for DC operation required on some older Lennox and McQuay units.
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