Carrier 33CS Instructions and recipes

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-354 Printed in U.S.A. Form 33CS-36SI Pg 1 302 7-99 Replaces: 33CS-8SI
Book 1 4
Ta b 1 1 a 1 3 a
Installation, Start-Up, and
Operating Instructions
Part No. 33CSPTN-02
CONTENTS Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Step 1 — Thermostat Location . . . . . . . . . . . . . . . . . . . 1
Step 2 — Set DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 1
Step 3 — Install Thermostat . . . . . . . . . . . . . . . . . . . . . . 2
Step 4 — Space Temperature Averaging . . . . . . . . . 2
Step 5 — Set Thermostat Configuration . . . . . . . . . . 2
Step 6 — Check Thermostat Operation . . . . . . . . . . 10
Step 7 — Select Thermostat Operation
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 8 — Set Current Time . . . . . . . . . . . . . . . . . . . . . . 10
Step 9 — Set Current Day . . . . . . . . . . . . . . . . . . . . . . . 10
Step 10 — Programming Thermostat
Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 11 — Final Checklist . . . . . . . . . . . . . . . . . . . . . . . 11
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11,12
Hold, Fan, and Mode Button Operation . . . . . . . . . . 11
Display Outdoor-Air or Leaving- Air
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermostat Output Assignments. . . . . . . . . . . . . . . . 11
Five-Minute Compressor Short-Cycle
Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Fifteen-Minute Staging Timer. . . . . . . . . . . . . . . . . . . . 11
Three-Minute Minimum On Time . . . . . . . . . . . . . . . . 11
Heating/Cooling Set Point Minimum
Difference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Auto-Changeover Timer . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power-On Thermostat Check . . . . . . . . . . . . . . . . . . . . 11
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Smart Recovery (Heating Mode Only) . . . . . . . . . . . 12
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Fol-
low all local electrical codes during installation. All wiring
must conform to local and national electrical codes. Improper
wiring or installation may damage thermostat.
Recognize safety information. This is the safety alert sym-
bol . When the safety alert symbol is present on equipment
or in the instruction manual, be alert to the potential for person-
al injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety alert symbol.
DANGER identifies the most serious hazards which will result
in severe personal injury or death. WARNING signifies a haz-
ard which could result in personal injury or death. CAUTION
is used to identify unsafe practices which would result in minor
personal injury or property damage.
GENERAL
Carrier’s 7-day, commercial, programmable thermostats are
wall-mounted, low-voltage thermostats which maintain room
temperature by controlling the operation of an HVAC (heating,
cooling and ventilation) system. Separate heating and cooling
set points and auto-changeover capability allow occupied and
unoccupied programming for energy savings.
All thermostats allow up to 4 time/temperature settings to
be programmed per 24-hr period. Each thermostat stores pro-
grams for 7 independent days. Batteries are not required. Dur-
ing power interruption the internal memory stores comfort
schedules for an unlimited time while the clock continues to
run for at least 72 hours.
The thermostat can be configured to accept several different
equipment configurations, from single-stage heating and cool-
ing to 3 stages of heating (heat pump only) and 2 stages of
cooling. The thermostat comes factory configured for air con-
ditioner operation.
INSTALLATION
Step 1 — Thermostat Location — The thermostat
should be mounted:
• approximately 5 ft from the floor
• close to or in a frequently used room, preferably on an
inside partitioning wall
• on a section of wall without pipes or ductwork
• where temperature operating limits are within 41 to
104 F (5 to 40 C)
• where humidity operating range is within 0 to 95% rela-
tive humidity, non-condensing
The thermostat should not be mounted:
• close to a window, on an outside wall, or next to a door
leading to the outside
• where exposed to direct light and heat from a lamp, the
sun, a fireplace, or any other temperature-radiating
object which may cause a false reading
• close to or in direct airflow from supply registers or
return air grilles
• in areas with poor air circulation (such as behind a door
or in an alcove)
Step 2 — Set DIP Switches — There are 4 small DIP
(Dual In-line Package) switches on the back of the circuit
board which must be configured by the installer. The ON posi-
tion is indicated by small letters on the switch. Ignore the num-
bers (1-4) on the switch. The switch designation (A-D) is print-
ed on the circuit board above the switch. To change a switch
position, use the corner of a small screwdriver to slide the
switch ON or OFF. Set the DIP switches before installing the
thermostat.
IMPORTANT: Read entire instructions before start-
ing the installation
33CS
Commercial Thermostat

2
AIR CONDITIONER OR HEAT PUMP SELECTION
(SWITCH A) — Use switch A to select between air condi-
tioning and heat pump applications. A heat pump application
uses a reversing valve. Set switch A to OFF for air-condition-
ing applications (no reversing valve). Set switch A to ON for
heat pump applications (O is used to energize the reversing
valve). The factory setting is OFF.
EMERGENCY HEAT SELECTION (SWITCH B) —
Switch B is used to configure the thermostat for use with emer-
gency heat. When Switch B is set to the ON position, the
Emergency Heat mode is available on the thermostat and can
be selected by using the mode button. When Switch B is set to
OFF, Emergency Heat mode is not available. The default is
OFF.
When the Emergency Heat mode is active, the thermostat
will energize the O/W2 output when Switch A is set to
OFF (air conditioner applications). The thermostat will ener-
gize the W/W1 output when Switch A is set to ON (heat pump
applications).
OUTDOOR AIR OR REMOTE ROOM/LEAVING-AIR
SENSOR (SWITCH C) — Switch C is used to configure the
thermostat to work with either a outdoor air sensor, leaving-air
sensor, or a remote room sensor. The sensor for the application
must be connected to terminals S1 and S2 of the thermostat.
Set switch C to OFF for a outdoor air sensor or leaving-air sen-
sor. Set switch C to ON for a remote room sensor. The factory
setting is OFF.
AVERAGING OF SENSORS (SWITCH D) — Switch D is
used if a remote room sensor is being used (switch C set to
ON). The remote room sensor reading can be averaged with
the sensor reading of the thermostat. Set switch D to OFF if
averaging is not required. To average the readings of the ther-
mostat and one remote room sensor, set switch D to ON. The
factory setting is OFF. See Space Temperature Averaging sec-
tion for wiring information.
Step 3 — Install Thermostat
1. Turn off all power to unit.
2. If an existing thermostat is being replaced:
a. Remove existing thermostat from the wall.
b. Disconnect wires from existing thermostat. Do not
allow wires to fall back into the wall. As each wire
is disconnected, record wire color and terminal
connection.
c. Discard or recycle old thermostat.
NOTE: Mercury is a hazardous waste and must be
disposed of properly.
3. Open thermostat rear door (mounting base) to expose
mounting holes. See Fig. 1.
4. Route thermostat wires through large hole in mounting
base. Remove outer sheath from wires for added flexi-
bility. Standard solid or multi-conductor thermostat
wire should be used from the thermostat to the unit.
Size and length considerations are as follows: for a
maximum run length of 36 ft, use 22 AWG (American
Wire Gage) wire; for a maximum run length of 100 ft,
use 18 AWG wire.
NOTE: When a remote room sensor or outdoor-air
sensor is used, an additional conductor should be pro-
vided for grounding of the shield.
If averaging of sensors is required, see Space Temper-
ature Averaging section for more information.
5. Level mounting base against wall and mark wall
through the 2 mounting holes in base.
6. Drill two 3/16-in. mounting holes in wall where
marked.
7. Secure mounting base to wall with 2 screws and
anchors provided. Ensure all wires exit through hole in
mounting base.
8. Adjust wire length and routing to allow proper closure
of the thermostat. Strip each wire at the end no more
than 1/4-in. to prevent adjacent wires from shorting
together. Match and connect wires to terminals on the
thermostat. See Fig. 2-9.
9. Push excess wiring into wall. Seal hole in wall to pre-
vent drafts.
10. Close thermostat door.
11. Turn on power to unit. The thermostat will receive
power from the unit. The thermostat will be powered
by 24 v, nominal (18 to 30 vac) through terminal R
(+ 24 v) and terminal C (common). Power consump-
tion is 5 va at 24 vac.
12. On power up the thermostat display shows the selected
setup mode (A2 — Air Conditioner, H2 — Heat
Pump) for a few seconds, depending on DIP switch
settings.
Step 4 — Space Temperature Averaging — Ap-
plications that require averaging using multiple space tempera-
ture sensors can be satisfied using either 4 or 9 sensors as
shown in Fig. 10. For single space temperature sensor wiring,
refer to the base unit installation instructions. Temperature sen-
sor calibration can be checked by measuring actual resistance
at a temperature with an ohmmeter and comparing to the val-
ues listed in Table 1.
NOTE: Only Carrier sensors (part no. ZONECCORRS01)
may be used for standard space temperature sensor averag-
ing. Sensors must be used singly or in multiples of 4 and 9,
with total sensor wiring not to exceed 1000 feet.
Step 5 — Set Thermostat Configuration —
Configuration options, like DIP switch settings, are intended to
be selected at installation and are not normally modified by the
user. These options are not discussed in the owner’s manual
and must be done as part of the installation. A special proce-
dure for the thermostat allows entry into the Configuration
mode. To enter Configuration mode, press and hold the Fan
button for approximately 10 seconds. The room temperature
display will disappear and the configuration option number
will be displayed on the thermostat screen. The configuration
option number will be flashing and can be changed with the
Up and Down buttons. Once the desired configuration option
Before installing thermostat, turn off all power to the
unit. There may be more than one power disconnect.
Electrical shock can cause injury or death.
Terminals S2 and C are internally connected. Do not
ground shield to terminal C of thermostat.
Be careful not to drill into wiring in wall. Electrical
shock could result.
Improper wiring or installation may cause damage to the
thermostat. Check to ensure wiring is correct before pro-
ceeding with installation of unit.

3
is displayed, press the Set Time/Temp button to configure the
option. See Table 2. The Option number will stop flashing and
the configuration value will flash. Change the configuration
value with the Up and Down buttons. Press the Set Time/Temp
button again to save the configuration and change a different
configuration. Press the End button to exit Configuration
mode. The thermostat will automatically exit Configuration
mode if no button is pressed for 3 minutes. Twelve different
configurations can be set in Configuration mode.
NOTE: When setting the configuration on the thermostat,
the configuration “on” is displayed as ON, and the configu-
ration “off” is displayed as OF.
Table 1 — Temperature Sensor Resistance vs Temperature Values
TEMPERATURE OHMS TEMPERATURE OHMS
FC FC
30 –1 34,480 76 24 10,250
32 0 32,630 78 26 9,750
34 1 30,760 80 27 9,300
36 2 29,220 82 28 8,840
38 3 27,470 84 29 8,432
40 4 26,020 86 30 8,042
42 6 24,680 88 31 7,668
44 7 23,320 90 32 7,310
46 8 22,070 92 33 6,993
48 9 20,910 94 34 6,661
50 10 19,830 96 36 6,368
52 11 18,820 98 37 6,085
54 12 17,870 100 38 5,811
56 13 16,920 102 39 5,571
58 14 16,160 104 40 5,313
60 16 15,260 106 41 5,088
62 17 14,530 108 42 4,869
64 18 13,790 110 43 4,660
66 19 13,090 112 44 4,450
68 20 12,480 114 46 4,268
70 21 11,860 116 47 4,091
72 22 11,270 118 48 3,918
74 23 10,750 120 49 3,750
DO NOT USE
MOUNTING HOLES
TERMINAL BLOCK
WITH SCREW
TERMINALS
TERMINAL BLOCK
WITH SCREW
TERMINALS
INSTALL WIRING
THROUGH OPENING
C B L
SI S2
O/W2
Y1/W2
R G
Y/Y2
W/W1
TERMINAL BLOCK LEGEND
B—Normally Closed Contact
C—Common
G—Fan
L—Do Not Use
O—Reversing Valve
R—+24 Volts
S1 —Optional Sensor
S2 —Optional Sensor
W—Heating
Y—Cooling
Fig. 1 — Commercial Programmable Thermostat Wiring and Installation

4
Table 2 — Thermostat Configuration Options
LEGEND
LAT — Leaving Air Temperature
CONFIGURATION
NUMBER DESCRIPTION RANGE DEFAULT
01 Anticipator Setting 1 to 9 3
02 Clean Filter Setting OF, 1 to 9 2
03 English/Metric Setting F, C F
04 Fan (G Terminal) on with Heat Relay OF, On On
05 S1, S2 used for Outdoor Air or LAT Sensor od, LA od
06 Cooling Lockout Temperature OF, 20 to 60 F OF
08 Auxiliary Heat Lockout Temperature OF, 5 to 55 F OF
13 Local Temperature Sensor Calibration –5 to 5 F 0° F
18 Override Hours 1 to 6 hours 3 hours
19 Remote Temperature Sensor Calibration –5 to 5 F 0° F
20 Allow Continuous Fan During Unoccupied Periods OF, On On
21 Keypad Lockout OF, On OF
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
W1
W2
Y1
Y2
G
C
X
DO NOT USE
R
*
CONNECTION
BOARD
SEE NOTE 3
LEGEND
B—Not Used
C—Common
G—Fan
L—Compressor Lockout
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
*Does not apply to 48/50TJ004-014 units.
NOTES:
1. 48/50TJ004-007 units only have one stage of cooling, but can have 2 stages of heat.
2. For 50HJQ and 50TJQ heat pump applications, set switch A to OFF (air conditioning).
The 50HJQ and 50TJQ units do not have an “O”terminal.
3. If thermostat DIP switch SWB is ON (Emergency Heat) and compressors lock out, the
X terminal on the unit will energize the L terminal on the thermostat and the thermostat
will automatically enter Emergency Heat mode.
Fig. 2 — Thermostat Wiring (48/50HJ,TJ004-014;
50HJQ004-012; and 50TJQ004-012)
48HJ,TJ004-014
50HJ,TJ004-014
50HJQ,TJQ004-012

5
FIELD
RELAY
C2
C1
2
4
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
RC
RH
W1
W2
Y1
Y2
G
C
X
11
FIELD RELAY
DO NOT USE
TB2
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
W1
W2
Y1
Y2
G
C
X
DO NOT USE
R
TB2
NOTES:
1. Field Relay P/N HJ61KK224.
2. Set DIP switch A to OFF. Set DIP switch B to ON
if Emergency Heat is required.
50HJQ014,016
48HJ014-025
50HJ015-025
48TJ016-028
50TJ016-028
LEGEND
B—Not Used
C—Common
G—Fan
L—Compressor Lockout
(Not Used)
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
Fig. 3 — Thermostat Wiring (48/50HJ015-025 and 48/50TJ016-028)
LEGEND
B—Not Used
C—Common
G—Fan
L—Compressor Lockout
(Not Used)
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
Fig. 4 — Thermostat Wiring (50HJQ014,016)
NOTE: Set DIP switch A to OFF.
Set DIP switch B to OFF.

6
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
W1
W2
Y1
Y2
G
C
X
DO NOT USE
R
TB3
UNIT
GROUND
WIRE NUT
REMOTE
ROOM
SENSOR
(P/N ZONECCORRS01)
SHIELD (CUT AND
TAPE BACK)
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
W2
W1
G
DO NOT USE
Y1
Y2
LLSV
C
R
X
IFC
WHT C2
C1
WHT
W1
C
W2
40RMQ
HEAT ACCESSORY
40RMQ CONNECTIONS
38AQS008
TERMINAL
BOARD (TB)
R
Y1
Y2
W1
W2
G
C
X
48EJ,EK,EW,EY024-068
50EJ,EW,EW,EY024-068
50EJQ,EWQ024,028
NOTES:
1. Set DIP switch A to OFF.
2. Emergency heat not available on heat pump units.
Fig. 5 — Thermostat Wiring (48/50EJ,EK,EW,EY024-068 and 50EJQ,EWQ024,028)
LEGEND
B—Not Used
C—Common
G—Fan
L—Compressor Lockout
(Not Used)
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
NOTES:
1. Set DIP switch A to OFF. Set DIP switch B to ON if Emer-
gency Heat is required.
2. Base unit terminal G is internally powered 24 vac from
the defrost board.
3. If thermostat DIP switch SWB is ON (Emergency Heat),
and compressors lock out, the X terminal on the unit will
energize the L terminals on the thermostat and the ther-
mostat will automatically enter Emergency Heat mode.
Fig. 6 — Thermostat Wiring (38AQS008)
LEGEND
B—Not Used
C—Common
C1, C2 —Contactor 1, 2
G—Fan
IFC —Indoor Fan Contactor
L—Compressor Lockout
LLSV —Liquid Line Solenoid Valve
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
→
302

7
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
W1
W2
Y1
Y2
C
X
DO NOT USE
R
C
IFC
SEE NOTE 3
38AQS012,016
ACCESSORY
HEAT
HR
O/W2
Y1/W2
R
G
Y/Y2
W/W1
C
B
L
S1
S2
COMMERCIAL
THERMOSTAT
Y2
G
DO NOT USE
R
O
Y1
A
5
NOTES:
1. Set DIP switch A to OFF. Set DIP switch B to ON if Emer-
gency Heat is required.
2. If thermostat DIP switch SWB is ON (Emergency Heat), and
compressors lock out, the X terminal on the unit will ener-
gize the L terminals on the thermostat and the thermostat
will automatically enter Emergency Heat mode.
LEGEND
B—Not Used
C—Common
G—Fan
HR —Heat Relay
IFC —Indoor Fan Contactor
L—Compressor Lockout
O—Reversing Valve (Not Used)
R—24 VAC Power
S1,S2 —Remote Sensor
W1 —First Stage of Heat
W2 —Second Stage of Heat
Y1 —First Stage of Cooling
Y2 —Second Stage of Cooling
Fig. 7 — Thermostat Wiring (38AQS012,016)
Fig. 8 — Thermostat Wiring (50HQA)
50HQA
NOTE: Set DIP switch A to ON.
LEGEND
B—Not Used
C—Common
G—Fan
L—Compressor Lockout
(Not Used)
O—Reversing Valve
R—24 VAC Power
S1,S2 —Remote Sensor
W/W1 —Not Used
W2 —Not Used
Y1 —Not Used
Y/Y2 —Second Stage of Cooling

8
ANTICIPATOR ADJUSTMENT SELECTION (01) — The
anticipator adjustment controls the sensitivity and cycle rate of
the thermostat. Higher numbers decrease the sensitivity and
slow the cycle rate (longer cycle times). Lower numbers
increase sensitivity and speed up the cycle rate (shorter cycle
times). Values can range from 1 to 9. The default is 3. The
default selection will provide optimum performance in nearly
all installations. Do not change the setting unless there is a
need to do so. Use the Up and Down buttons to increase or
decrease the value.
Unlike conventional thermostat anticipators, the setting is
not determined by current draw. There is no need to measure,
know, or compensate for the current. There is no need
to “droop” with this thermostat, regardless of the anticipator
setting.
CLEAN FILTER TIMER SELECTION (02) — The clean
filter selection determines how many hours of fan operation
will pass before the Clean Filter icon is displayed. A timer in
the thermostat accumulates the total fan operation hours. The
range of values is 400 to 3600 hours (in 400-hour increments).
• a “1” will be displayed for 400 hours of operation
• a “2” will be displayed for 800 hours of operation
• a “3” will be displayed for 1200 hours of operation
• a “4” will be displayed for 1600 hours of operation
• a “5” will be displayed for 2000 hours of operation
• a “6” will be displayed for 2400 hours of operation
• a “7” will be displayed for 2800 hours of operation
• a “8” will be displayed for 3200 hours of operation
• a “9” will be displayed for 3600 hours of operation
The selection can also be set to OF (disabled). Use the
Up and Down buttons to change the setting. The default is 2
(800 hours).
NOTE: During the selection procedure, the Clean Filter icon
will be displayed, even if OF (disabled) is chosen.
FAHRENHEIT OR CELSIUS SELECTION (03) — The
thermostat can be set to use a Celsius or Fahrenheit
temperature display. Use the Up and Down buttons on the ther-
mostat to change the setting between F (Fahrenheit) and
C (Celsius). The default value is F.
FAN ON OR OFF WHEN HEAT IS ENERGIZED SELEC-
TION (04) — The thermostat can be set to turn the fan (G out-
put) on or off when the heat input (terminal W) is energized.
Use the Up and Down buttons to toggle between OF (fan off
during heating) and ON (fan on during heating). The default
value is ON. The W relay option only cycles the fan when the
fan is in the Auto Mode and the “Fan ON When Heat Ener-
gized” option is configured to ON.
THERMOSTAT SENSOR CONNECTIONS USAGE
(05) — The thermostat provides a sensor wiring connection
(terminals S1 and S2). The thermostat sensor connections
usage configuration is only available if the thermostat Outdoor
Air or Remote Room Sensor Switch (Switch C) is set to OFF
(outdoor air sensor).
The configuration can be set either to “od” or “LA”. The de-
fault is “od.”
When the configuration is set to “od” and an outdoor-air
temperature sensor is present (wired to S1 and S2), the thermo-
stat will display outdoor-air temperature when the Up and
Down buttons are pressed simultaneously. The letters “od” will
be displayed at the same time. The display will return to nor-
mal after 4 seconds.
When the configuration is set to “LA” and a leaving-air
temperature sensor is present (wired to S1 and S2), the thermo-
stat will display leaving-air temperature when the Up and
Down buttons are pressed simultaneously. The letters “LA”
will be displayed at the same time. The display will return to
normal after 4 seconds.
LOW AMBIENT COOLING LOCKOUT SELECTION
(06) — The Low Ambient Cooling Lockout Feature will lock
out Cooling mode if the outdoor-air temperature is below the
lockout cooling temperature (user-configured).
NOTE: This configuration is not available if DIP switch C
(Remote Room Sensor) is set to ON or if the outdoor air sensor
is in error. Also configuration 05 (Thermostat Sensor Connec-
tion Usage) must be set to “od”.
The default is OF (disabled). The lockout temperature can
be set to OF (disabled) or 20 to 60 F in 5-degree increments
ABCD
ON
TEMPERATURE SENSOR
CONNECTION PINS
CONNECTION PINS
ON BOARD
RELAYS
DIP SWITCHES
A: ON=HP, OFF=AC
B: ON=EMERGENCY HEAT
OFF=NO EMERGENCY HEAT
C: ON=REMOTE SENSOR
OFF=OUTDOOR SENSOR
D: ON=AVERGING
OFF=NO AVERGING
W/W1 Y/Y2 G R Y1 O/W2
NOT USED
L
B
C
S2 S1
LEGEND
NOTES:
1. All relays are N/O dry contacts except B which is N/C.
2. all relay contacts are rated for maximum load of 1.5 amps at 24 vac.
DIP — Dual In-Line Package
N/C — Normally Closed
N/O — Normally Open
Fig. 9 — Commercial Programmable Thermostat Circuit Board Component Layout

9
(enabled). Use the Up and Down buttons to increase or de-
crease the setting.
HIGH AMBIENT ELECTRIC HEAT LOCKOUT SELEC-
TION (08) — If DIP switch A is set to ON (heat pump) and
DIP switch C is set to OFF (an outdoor temperature sensor is
present), electric heat can be locked out if the outdoor ambient
temperature rises above the user-defined value. Also, Configu-
ration 05 (Thermostat Sensor Connection Usage) must be set
to “od.” Temperatures of 15 to 55 F (in 5-degree increments)
can be selected. The lockout can also be disabled. The default
is OF (disabled). Emergency Heat mode disables this func-
tion. Use the Up and Down buttons to increase or decrease the
setting.
LOCAL TEMPERATURE SENSOR CALIBRATION
(13) — The local Temperature Sensor Calibration is an offset
which is added or subtracted from the local temperature sensor
reading. The range of acceptable values is –5 to 5 F. The
default is 0° F (no offset).
To determine of an offset is required, compare the tempera-
ture reading on the thermostat to an accurate thermometer.
Adjust the offset (+ or –) until the thermostat temperature
matches room temperature.
OVERRIDE HOURS (18) — The Override Hours configura-
tion determines the number of hours that set point override will
last. The range of acceptable values is 1 to 6. The default is 3.
Set point override is activated by pressing the Occupied button
or by changing the set point with the Up or Down buttons. If
the schedule changes while the override time is still active, the
override is cancelled.
REMOTE TEMPERATURE SENSOR CALIBRATION
(19) — The Remote Temperature Sensor Calibration is an
offset which is added or subtracted from the remote tempera-
ture sensor reading. The range of acceptable values is –5 to
5 F. The default is 0° F (no offset).
To determine if an offset is required, compare the
remote temperature reading on the thermostat to an accurate
thermometer placed near the remote sensor. Adjust the offset
(+ or –) until the thermostat temperature matches the measured
temperature.
TB
S1
S2
TO THERMOSTAT
RED
BLK
RED RED
BLK BLK
BLK
RED
BLK
RED
SENSOR 1 SENSOR 2 SENSOR 3 SENSOR 4
TB
S1
S2
RED
BLK
TO THERMOSTAT
RED
BLK
SENSOR 2
SENSOR 1
RED
RED
BLK
SENSOR 3
SENSOR 4
BLK
BLK
RED
RED RED
BLK BLK
SENSOR 8 SENSOR 9
SENSOR 5
RED
BLK
SENSOR 6
SENSOR 7
BLK
RED
SPACE TEMPERATURE AVERAGING —4 SENSOR APPLICATION
SPACE TEMPERATURE AVERAGING —9 SENSOR APPLICATION
Fig. 10 — Space Temperature Averaging
LEGEND
TB — Terminal Block
Factory Wiring
Field Wiring

10
ALLOW CONTINUOUS FAN DURING UNOCCUPIED
HOURS (20) — The fan can be configured by the user to run
continuously (set to ON) or only during heating or cooling (set
to AUTO). When the fan is set to ON (run continuously), the
Allow Continuous Fan During Unoccupied Hours configura-
tion determines whether the fan will run during unoccupied
periods when heating or cooling is not active.
When the configuration is set to ON and the fan is set to
ON, the fan will run continuously during unoccupied periods,
even when heating or cooling is not active.
When the configuration is set to OF, the fan will run during
unoccupied periods only when heating or cooling is active.
The default is On.
KEYPAD LOCKOUT SELECTION (21) — The thermo-
stat has a lockout feature which will not acknowledge configu-
ration buttons until the lockout code is entered. After the
lockout code has been entered, the keypad will remain
unlocked until the user has stopped pressing keys for 2 min-
utes. The Lockout selection can be set to ON or OF (disabled).
Use the Up or Down buttons to toggle between off and on. The
default is OF.
NOTE: If the Lockout is enabled, the lockout code is as fol-
lows, in sequence, within a 10-second time period: Mode
button, Copy Previous Day button, Set Time/Temp button,
and Hold button.
Step 6 — Check Thermostat Operation — Per-
form the following procedure to check thermostat operation:
1. Press the Hold button. This will prevent the set point
from changing until the desired time and temperature
schedule is entered.
2. Press the Fan button to switch the fan annunciator
from AUTO to ON. The fan should run continuously.
Check fan operation. Press the fan button again to
switch back to AUTO.
NOTE: If fan does not run check set up option 20 con-
figuration. Fan may not run during unoccupied times
in schedule.
3. Press the Mode button repeatedly until HEAT is dis-
played in the mode annunciator. Press the Set Time/
Temp button until the heat set point annunciator is
flashing. Press the Up button until the set point reads
10 degrees above room temperature. The heating sys-
tem should begin to operate within 5 minutes.
4. Press the Mode button repeatedly until COOL is dis-
played in the mode annunciator. Press the Set Time/
Temp button until the heat set point annunciator is
flashing. Press the Down button until the set point
reads 10 degrees below room temperature. The cooling
system should begin to operate within 5 minutes.
Step 7 — Select Thermostat Operation Set-
tings — Thermostat operation should be configured. Set
the Fan and Mode configurations to their desired settings.
Press the Up and Down buttons to select the desired comfort
temperature.
Step 8 — Set Current Time — The Set Time/Temp
button allows the user to change the time displayed on the ther-
mostat. Press the Set Time/Temp button. The display will show
the blinking TIME annunciator. Press the Up and Down but-
tons until the correct time is shown. Hold down the buttons to
quickly move through the time display. The AM and PM an-
nunciators will automatically change. To ensure the schedules
are properly followed, make sure that AM or PM is correct for
the time chosen. When the correct time is shown, press the End
button to exit the Set Time mode.
Step 9 — Set Current Day — The Change Day but-
ton will change the day shown on the thermostat display to the
next day. If a schedule has been entered, the thermostat will fol-
low the schedule of the new selected day.
Step 10 — Programming Thermostat Sched-
ules — Before programming the thermostat, plan the ther-
mostat daily schedule. The schedule is divided into 7 days
(Monday through Sunday). Each day has 4 time periods (OC1,
UN1, OC2, UN2). Each time period has a start time, heating
set point, and cooling set point. Fill in Table 3 as an aid to pro-
gramming the daily schedules.
PROGRAMMING MODE — To program the daily sched-
ules, perform the following procedure:
1. Enter programming mode by pressing the Program
button. The PROGRAMMING annunciator will
appear on the thermostat display. The current day of
the schedule will be displayed and the current pro-
gramming time period of that day will be displayed.
The TIME annunciator will flash.
NOTE: If a programming button is not pushed for
3 minutes, the thermostat will exit programming mode
and any changes made will be saved.
2. Press the Up and Down buttons to set the start time for
the schedule day and period shown.
3. Press the Set Time/Temp button once the correct time
is shown. The TIME annunciator will stop flashing
and the HEAT annunciator will start flashing.
4. The heating and cooling set points can now be pro-
grammed. The HEAT and COOL annunciators are dis-
played for the heating and cooling set points
respectively. The Set Time/Temp button is used to tog-
gle between the heating and cooling set points and the
time. Use the Up and Down buttons to raise and lower
the temperature set points.
NOTE: There must be at least 3 degrees difference
between the cooling and heating set points. The ther-
mostat will automatically change any set points closer
than 3 degrees.
Table 3 — Daily Schedule Planner
NOTE: The cooling temperature set point must be at least 3 degrees higher than the heating temperature set point.
DAY OF WEEK
SCHEDULE
OC1 UN1 OC2 UN2
Time / Heat / Cool Time / Heat / Cool Time / Heat / Cool Time / Heat / Cool
Monday ////////
Tuesday ////////
Wednesday ////////
Thursday ////////
Friday ////////
Saturday ////////
Sunday ////////