Robertshaw 300-224 Technical specifications

Installation and Programming
Instructions for
Deluxe Programmable Thermostats

TABLE OF CONTENTS
INTRODUCTION ................................................................ 4
STANDARD FEATURES ...................................................... 4-6
THERMOSTAT LOCATION .................................................. 7
REMOVING THE THERMOSTAT FROM THE SUBBASE .......... a
DESCRIPTION OF THE DIP SWITCH FUNCTIONS
.................
9-11
COVER LOCK ................................................................... 12
REPLACING THE THERMOSTAT ON THE SUBBASE .............. 12
WIRING DIAGRAMS .......................................................... 13-24
PROGRAMMING 7 DAY MODELS ....................................... 26-29
PLANNING YOUR SCHEDULE
..........................................
25
SETTING THE CURRENT DAY AND TIME ........................... 26
SETTING YOUR PROGRAM TEMPERATURES
....................
26
SETTING YOUR PROGRAM TIMES ................................... 27
TEMPERATURE OVERRIDE ............................................... 28
CHANGING FAHRENHEIT (F) TO CELSIUS ('C) .................. 29
CHANGING 12 HOUR TIME TO 24 HOUR TIME .................. 29

POWER FAILURES .......................................................................... 29
OUTDOOR TEMPERATURE INDICATOR (OPTIONAL) ........................... 29
PROGRAMMING 5/2 DAY MODELS ................................................ 30-34
TYPICAL RESIDENTIAL SCHEDULE
..................................................
30
PLANNING YOUR SCHEDULE .......................................................... 31
SETTING THE CURRENT DAY AND TIME
...........................................
32
SETTING THE VVEEKDAY PROGRAM TIMES AND HEATING TEMPERATURES ......32-33
SETTING THE VVEEKEND PROGRAM TIMES AND HEATING
-
TEMPERATURES. 33
SETTING THE WEEKDAY AND WEEKEND COOLING TEMPERATURES ...... 33-34
REVIEWING SCHEDULED TIMES AND TEMPERATURES ........................ 35
CHANGING SCHEDULED TIMES AND TEMPERATURES
........................
35
SPECIFICATIONS ......................................................................... 36-37
IMPORTANT INSTALLER'S NOTE ................................................... 38-39
IMPORTANT;
Read this manual thoroughly to understand all
the features of your deluxe programmable thermostat.

INTRODUCTION
The Deluxe Programmable Thermostat represents the mast advanced solid-state, microcomput-
er temperature control an the market today. The thermostat incorporates state-of-the-art tech-
nology packaged in an extremely low profile designer series case. Ultra-Touch controls are com-
bined with an easy-to-read, full function liquid crystal display to provide the ultimate in user
friendly operation of your heating and air conditioning equipment.
STANDARD FEATURES
• No batteries required - always remembers scheduled events and temperatures
• 100% solid state circuitry
• Computerized heat anticipation and cooling droop
• Built-in short cycle protection during normal operation
• Tamper proof electronic keyboard lockout
• Auto or manual fan operation
• Auto or manual heat/cool changeover
• Constant hold feature allows continuous override
• Temporary temperature override
• Selectable 12 or 24 hour clock display
• Selectable Fahrenheit or Celsius temperature display
• Lockable acoess cover
• Full function liquid crystal display (LCD}
No Auto Changeover on 200-2D4. as. 206. or 230.
4

Press ED select
heat/cod/auto/off.
The word is displayed
for 5 sernnds.
(Ernertjericy heat for
35D-22-6
Select for DDREinumis
fan or auto fan
Press ED exit the hold
or override program.
or when programming
is complete
Press to change from
Standard Time to
Daylight Saving Time
Press to set program
temperatures and
start tines
Press to hold the Current
setting. The program
will hold indefinitely or
until RESUME is
pressed
FOR MODELS
300-224, 226, 230
Press to settle Press ED display the
real time day. outdoor temperah.lre
hour and minute (optional)
To lower lower TO raise
tie setpoint the setpoint
Press and at the same time to change
5

FOR MODELS 300-225, 227, 229
Press to hold Hie current
setting. The p rogr-a m will
hold indefinitely or irritil
RESUME is pressed
Press to display the
oL,tdoorternperetLlre
( Optional}
Press ED select
heat/0 DO LID urb/off.
The word is displayed
or 5 seconds.
(Emergency heat For
300-227)
Select for contirkUOLIS
r,n or auto r DR
PrESSo it the hold
Or override program.
or when p rogra mm ing
is complete
To lower TO raise
the setpoint the setpoi ni
Press and at the same time to change
6

THERMOSTAT 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" (46 cm) from any out-
side wall, and approximately 5, (1.5 m) above the floor in a location with freely circulating air of
an average temperature.
Be sure to 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 adja-
cent partition, or by an unheateci/uncooled area behind the thermostat
• where its operation will be affected by the supply air of an adjacent unit
• near sources of electrical interference such as arcing relay contact
7

REMOVING THE THERMOSTAT FROM THE SUBBASE
1. Insert a flat blade screwdriver or ooin 1/8"
1
ca
into the slot located in the bottom center of
the thermostat case and twist 1/4 turn.
lai
seeri
from
you feel or hear a click, grasp
thdesep_
the bottom two
co
ners an
1
1
1
g
ar
r
a
a
t from iom
a
'
tthe
the s
ft
t
o
ba
rne
se
rn
a
n
s own
dsei hsregu iniftehendni
re
force than others when separating due to
the number of terminals used.
2.
Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
4. Place the ectangular opening in the sitbase 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 over tighten])
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 pu
g
-led back into the wail 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.
3

DESCRIPTION OF THE DIP SWITCH FUNCTIONS
2 Events or 4 Events Per Day (300-225, 300-227. 300-229)
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 events will allow you to program Morning 2L, , Day
0
,
Evening and Night ( settings.
Smart Fan (300-225, 300-227, 300-229)
When the Smart Fan switch is in the ON position and the fan 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. NOTE: The unoccupied program is the Night program.
2 Minute or 4 Minute Minimum On Times
Keypad Lock
Place the switch in the locked position to lockout all buttons except the OUTDOOR button.
Plenum Fan Switch (300-224, 300-225, 300-229)
OFF - Fan comes on immediately with heat (used on electric heat).
ON - Fan is controlled by the system (used on gas/ail heat).
Standard/Add-on Heat Pump
(300-226, 300-227)
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-an position. This will turn
off the compressor with a call for auxiliary heat.
9

Single or Multistate (300-227, 300-229)
For equipment with a single compressor (2 heat/1 cool
for 300-227 or 1 heat/1 cool for 300-
229}, switch to single stage. For equipment with two compressors (3 heat/2 cool for 330-227 or
2 heat/2 cool for 300-229), switch to multistage.
LED #1 (300-226, 300-227, 300-229)
Switch ON will energize the LED light pipe at the top of the thermostat plus the filter indicator on
the display. This indicates the filter needs to be changed.
LED #2 (300-226, 300-227, 300-229)
Switch ON will energize the LED light pipe at the top of the thermostat plus the wrench indicator
on the display. This indicates service is required.
FEATURES
Remote Sensor FIS1 — R52 - RS-IN
The thermostat is designed to accept the remote sensor (10-528) which will allow you to locate
your thermostat in an area away from view.
LED Auxiliary Heat Indicator (300-226, 300-227)
Your thermostat is equipped with an LED that indicates when the system has engaged auxiliary
heat mode. It is the center (red) LED.
Add-On Heat Pumps (300-226, 300-22 7)
Your thermostat is equipped to enhance the performance of an add-on heat pump.
In most applications, the thermostat will perform the function of a fossil fuel kit.
To select Add-On, place switch (10 for 300-226, #5 for 300-227) to the ON position. The ther-
mostat 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

Setting the Outdoor High and Low Temperature Balance Points (3O0-226, 300-227)
When using the optional Robertshaw remote outdoor sensor (Uni-Line #10-5291, 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 high balance point, along with the factory setting of 119-F (48`C). Any out-
side temperature above the HibP will lack out the auxiliary heat, any temperature below the
HibP will allow the auxiliary heat to run when called for by the thermostat.
2. Press the s or t buttons to set the HibP temperature. (A typical setting may be 52'F.}
3. Press the OUTDOOR button. LobP will appear in the display meaning low 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 a or t buttons to set the LobP temperature. (A typical setting may be 28'F.)
5. Press the RESUME button.
11

COVER LOCK
You also may lock the cover down to prevent unauthorized access to the thermostat by adding
the dear plastic lock (included in the installation bag). To install, remove the thermostat from the
subbase and place the dear plastic lock in the subbase as shown below. Replace the thermo-
stat and close the cover. The cover now is locked. To open, simply use a screwdriver to push
the lock back allowing the cover to open. To remove the lock, open the cover, remove the ther-
mostat from the subbase, then remove the lock.
REPLACING THE THERMOSTAT ON THE SUBBASE
1.
Position the thermostat on the hinged tabs located at the top of the subbase.
2. Gently s+hing the thermostat dawn and press on the bottom center edge until it snaps in place.
12

-

1552
.451
.55-V
300-224
mn inr0,111
k 7 ma
Mtial
OFF ON
4 nin. Ort,'.
mirt LaVdrr?
1.7r4ott .:
Locked
Elect!. G35
OUTPUT TERMINAL FUNCTIONS -
300-224
RH 24VAC supply from heating
................ Energizes the heating equipment with a call
for heating
RC
............. 24VAC supply from cooling
................. Energizes the cooling equipment with a call
for cooling
Fan is energized with a call for heating or
cooling or selected by pressing the FAN
button in heating mode.
F1S2 ............ Use to connect outdoor
RS1 temperature sensor and/or
RS-1-V indoor remote sensor options. Refer to the
instructions included with the sensors.
Equipment load resistors {provided} may be required on
the W, Y and G switching circuits if the equipment loads
do not draw 080 amps.
Connect load resistors at the equipment.
'See important installer's note on pages 38 and 39.
14

Y r
{ 24V
24V(c)
Note 2
300-225
IRS2
RS}
RS, V
4 everts
t
ev Ms
Small Fan
crr
4 rein ;c4-.1:1:.
rrarl
Unlenes
Lbeled
Glen, s
WIRING DIAGRAM -
300 - 225
Note 1: If jumper removed, a sep-
arate transformer must be used to
power the loads.
Note 2 This thermostat may be
used with 24 Volt DC. The nega-
tive side of the DC supply must be
wired to the 24V (C) terminal.
Note 1
-I EAT STAGE #1 0
COOL STAGE RI
FAN M
Lin e
— Voltage
24 VAC
Transfor mer
on ,
COMMON
15

OUTPUT TERMINAL FUNCTIONS -
300-225
Era
'
RS2
UZI RS,
UZI RS.V
300-225
."
1 011
Y,12111
1 011
24,1011
2411(c,
lizEi
W1 ....
Y1 ....
G .....
24V
24V(c)
RS2
..
RS1
RS+V
„,
Energizes on a call for first stage heat
Energizes with a call for coaling
Fan is energized with a call for heating or
selected by pressing the FAN button
.... Independent switching voltage'
24 VAC hot from the equipment transformer
.... 24 VAC common from the equipment
transformer
Use to connect outdoor temperature
sensor and/or indoor remote sensor
options. Refer to the instructions included
with the sensors.
OFF ON
4 events 2 events
Smart fan OFF ON
4 min. (on/cff) 2 min. (on/off)
Unlocked Locked
Electric Gas
• Mows for DC operation required on some older
Lennox and Mcaray units.
To replace a dual transformer system, connect the hot
lead of the higher rated transformer (T1) to the 24V ter-
minal. Connect the common to the 24V(C). Connect the
common of the second transformer to the common lead
of the Ti and tape off or wire nut the hot lead of 72.
16

-

IADW
arm.
I
OFF ON
4 rnirt cm
•
2
MIR
1..11'
Unlock. Loth.'
Stmouru
Add-on
.N. u.d — rroge be CIF Noi. oSOJ
LE G11 with 'der syn:bol LCD 1 Only
LEO r2 I.ED
In
OUTPUT TERMINAL FUNCTIONS -
300-226
W1 .Auxiliary heat is energized as second stage
heating or emergency heat
Y1 .
Compressor is energized with a call for
heating or cooling
................. Fan is energized with a call for heating or
cooling or selected by pressing the FAN
button
................. Independent Switching Voltage--
24V . 24 VAC hot from the equipment transformer
24V(c) ......... 24 VAC common from the equipment
transformer
LED 1 ......... Free lights for status or function indication
LED 2
RS2 ........... Use to connect outdoor temperature sensor
RS1
and/or indoor remote sensor options. Refer
RS+V to the instructions included with the sensors.
0 ... .. Energizes the reversing continuously in the
cooling mode.
................. Energizes the reversing continuously in the
heating and off modes.
Allows for DC operation required on some older
Lennox and McCuay units.
O
I
mportant: Switch #4 must be left in OFF position
18

0•
n ••
LEH
LED?
RSZ
R5rv
417 1
COw OCC
:
309-227
R
/ CI
•121
•In
•In
•In
OFF ON
OUTPUT TERMINAL FUNCTIONS -
300-227
W2
............ Energizes aisriliary heat as second stage emergency
heat
Y2........... .Energizes compressor it2 On a call for second Stage
heating Or COOHRO
W1 . ....... .Energizes auxiliary heat as last stage heating or first
stage emergency heat
Yl. .Energizes compressor #1 on a call for First stage heat-
ing Or cooling
G . Fan is energized with a call for heating or cooling or by
pressing the FAN button
R
„ independent switching voltage'
24V. 24 VAC hot from the equipment transformer
24V(c)
....... 24 VAC co MMOR from the equipment transformer
LEM ..........Free lights for status
LED2
Or fun ction indiC a tiOn
RS2
Use LO connect outdoor temperarure sensor
PSI
and/or indoor remote Sensor options. Refer
RS+V
to the instructions included with the sensors.
0 ... ....... ..... Energizes the reversing continuously in the cooling
Smart ran Clr 1
;:tr
4 min larLolatt) 2 min (ordo!:.
Single
stir9e rollitStirry¢
l.F.L) al Qn
,
y
L6P. el with Alter syrri.
' Allows or DC OpErail011 required On SOME older Lennox and
uniackert Loclres
Standard
COM
Acldwn
4 events
Z e.nts
Ei
N 0
Energizes the reversing continuously in the he:ating and
off modes
Relay coil is de.. .energized in the night
event. In all other events, the relay coil is
NC
energized
mode
LEO te7 only LED S2 wan f,uns,m1,11
,
McQuay itnits.
To replace a dual transformer system
:
connect the hot lead of the
higher rated fransforrnsr (1
-
11 to the 24V terminal. Connect the
common
to
the 24V(C). Connect the common Of the second trans-
former to the common lead d the Ti and tape oft Or wire nut the
hot lead of T2.
20