REMOVING THETHERMOSTAT FROM THE SUBBASE
DESCRIPTION OF THE DIPSWITCH FUNCTIONS
1.
Insert a flat blade screwdriver, or a coin,
2 Events or 4 Events Per Day
(3&X?25,3fKM?27,30&?29)
the case from the bottom two corners and
separate from the subbase as shown in
the diagram at the left. Some
models re_
quire
more force than others when
sepa-
rating due to the number of terminals used.
2. Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
l/8”
into the slot located in the bottom
cen-
ter of the thermostat case and
twist
l/4
turn. When you feel or hear a “click”, grasp
4 EVENTS will allow you to
program
MORNING &
,
DAY
-ID
,
EVENING s and
NIGHT c settings.
Smart
Fan (3MM26,3l%?27,3lW?29)
When the Smart Fan switch is in the on position and the Fan
*
s
has been energized (during
the occupied program), the thermostat will keep the fan running continuously during the
OCCU-
pied programs and automatically cycle the fan with a call for heating or cooling during the
unoc-
cupied
program.
NCKEZ
The unoccupied program is the night program.
Your thermostat can be set to either 2 events or 4 events per day.
2
EVENTS will allow you to program a DAY -0 setting and a NIGHT (setting.
4. Place the rectangle 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 as shown in the wiring diagrams.
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 the wall affecting the thermostat.
a
Single or Multistage
(3W227,30&?29)
For equipment with single compressor (2
heat/l
cool for 300-227 or 1
heat/l
cool for
300-229)
switch to “single stage”.
For equipment with two compressors (3 heaV2 cool for 330-227 or
2 heaV2 cool for
300-229)
switch to “multistage”.
LED #l (300226,306-227,3W&?9)
Switch “on” will energize the LED light pipe at the top of thermostats plus the filter indicator on the
display. This would indicate filter needs changing.
LED #2
(36&?26,3OfW27,3&%?29)
Switch “on” will energize the LED light pipe at the top of thermostats plus the wrench indicator on
the display. This would indicate service is required.
FEATURES
Remote Sensor
RSl -
RS2 -
RS+V
The thermostat is designed to accept the Remote Sensor (10528) which will allow you to locate
your thermostat in area away from view.
LED Auxiliary Heat Indicator
(3&I-226,360-227)
Your thermostat is equipped with a LED that indicates when the system has engaged auxiliary
heat mode. It is the center (RED) LED.
Add-On Heat Pumps
(30&?26,300-227)
Your thermostat is equipped to enhance the performance of an “Add-On” heat pump. The thermostat, in most
applicatons,
will perform the function of a fossil fuel kit.
To select “Add-On”, place switch
(#3
for
300-226, #5 Ibr 360-227)
to the “ON” position. The
thermostat will turn off the compressor with a call for “AUX” heat, When the switch is set to normal,
the thermostat allows the compressor and the “AUX” heat to be on simultaneously.
10
2
Minute or 4 Minute Minimum On Times
Keypad Lock
Place the
switch
in the “Locked” position to lockout all buttons except the Outdoor Temperature button.
Plenum Fan Switch
(3~224,300-225,~229)
OFF - Fan comes on immediately with heat (used on electric heat).
ON - The fan is controlled by the system (used on gas/oil heat).
Standard/Add-on Heat Pump
(3~226,~227)
For most heat pump applications, this switch should be left In the “Standard” position. This will
allow the compressor and the auxiliary heat to be on simultaneously. For add-on heat pumps, or
heat pumps that require fossil fuel kits, move this switch to the “Add-on” position. This will turn off
the compressor with a call for auxiliary heat.
9
Setting the Outdoor Hi & Lo Temperature Balance Points
(300-226,300-227)
When
using
the optional Robertshaw Remote Outdoor Sensor
(Uni-Line
#lo-529) you can select
the outdoor balance points to lock-out the auxiliary heat and/or the compressor of the heat pump.
To set the balance points:
1. Press and hold the OUTDOOR button, then press the MODE button. “HibP” will appear in the
display meaning HI balance point, along with the factory
setting
of
119°F
(48°C). Any outside
temperature above the “HibP” will lock out the
auxtliary
heat. any temperature below the “HibP”
will allow the auxiliary heat to run when called for by the thermostat.
2. Press
the@or@buttons
to set the “HibP” temperature. (A typical setting may be 52°F).
3. Press the OUTDOOR button. “LobP”
WIII
appear in the display meaning Lo balance point, along
with
the factory setting of -54°F
(-48’C).
Any outside temperature below the “LobP” will lock out
the compressor, any temperature above the “LobP” will allow the compressor to run when
called for by the thermostat.
4. Press
the@or@buttons
to set the “LobP” temperature. (A typical setting may be
28°F).
5. Press the RESUME button