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Series 2000 Commercial  
Microelectronic Thermostat  
Contents  
Features ..................................................................  
Programming...........................................................  
3
4
Troubleshooting ...................................................... 18  
®
U.S. Registered Trademark  
Copyright © 1996 Honeywell Inc. • All Rights Reserved  
1  
63- 4356-1  
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ENTER UNOCCUPIED  
PROGRAM MODE  
SET OCCUPIED  
TEMPERATURE  
SETPOINTS  
SET UNOCCUPIED  
TEMPERATURE  
SETPOINTS  
ENTER OCCUPIED  
PROGRAM MODE  
SET CURRENT DAY OR  
PROGRAM DAY  
AM  
Room  
Mon  
Occupied  
System  
Heat  
Fan  
Auto  
RETURNS TO  
NORMAL  
OPERATIONS  
INCREASE  
TEMPERATURE  
OR TIME SETTING  
Set Program  
Set Temperature  
Change  
Time/Temp  
Run  
Program  
Occupied  
Start Time  
Unoccupied  
Start Time  
Occupied  
Temp  
Unoccupied  
Temp  
Day  
SET OVERRIDE  
TEMPERATURE  
OFFSET AND  
ACTIVATE  
TEMPORARY  
OVERRIDE  
Temporary  
Occupied  
Set Current  
Day/Time  
Clear  
Start Time  
Heat/Cool  
Settings  
Copy  
Continuous  
Unoccupied  
System  
Fan  
DECREASE  
TEMPERATURE  
OR TIME SETTING  
SET CURRENT  
DAY AND TIME  
SELECT  
SYSTEM  
OPERATION  
SELECT FAN  
OPERATION  
CHANGE BETWEEN  
HEATING AND  
COOLING SETPOINTS  
ENTER HOLD MODE  
CLEAR PROGRAM PERIOD  
COPY ONE  
PROGRAMMED DAY  
TO ANOTHER DAY  
M10256  
63-4356—1  
2
FEATURES  
•
•
•
•
Program up to two Occupied and two Unoccupied time periods for each daily schedule.  
Set different schedules for each day of the week.  
Temporary temperature overrides.  
Program copy key.  
3
63-4356—1  
PROGRAMMING  
The keyboard is located behind the thermostat  
cover. Sixteen keys are used to set, review and  
modify programmed times and temperature settings.  
The thermostat display shows day, time, program  
period and temperature.  
key provides quick temporary temperature changes  
for increased occupant comfort. The Continuous  
Unoccupied key provides energy efficient operation  
for extend periods of time.  
Before starting the program procedure, use the  
following chart to organize the program schedule.  
The thermostat can be set for two Occupied and  
two Unoccupied times for each day of the week  
(
28 independent time settings). Temporary Occupied  
63-4356—1  
4
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Occupied  
Period 1  
Unoccupied  
Period 1  
Occupied  
Period 2  
Unoccupied  
Period 2  
Day  
Monday  
Tuesday  
Wednesday  
Thursday  
Friday  
Saturday  
Sunday  
5
63-4356—1  
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The program has four temperature settings, Occupied  
and Unoccupied heat and cool. The thermostat will  
operate at the Unoccupied temperature setting  
unless the thermostat is programmed. The following  
chart shows the default temperature settings.  
Setting Current Day and Time  
ᕡ Press Set Current Day/Time.  
NOTE: On initial power up or after an  
extended power loss, 1:00 pm flashes  
on the LCD until a key is pressed.  
Occupied  
Setpoint  
Unoccupied  
Setpoint  
Set Day/Time  
Set Current  
Day/Time  
Control Default Desired Default Desired  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
PM  
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
T i
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
Day  
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
Mon  
TOe cmc pu op ri ea dr y  
S De at yC / Tu ri mr
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
s
at tt /i Cn go ol  
Unoccupied  
Continous  
System  
Fan  
Heating 70°F  
55°F  
(13°C)  
(21°C)  
M4951B  
Cooling 78°F  
90°F  
(32°C)  
(25.5°C)  
63-4356—1  
6
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ᕢ Press Day until the current day is displayed.  
ᕤ Press Run Program.  
Run  
Program  
NOTE: Sun = Sunday, Mon = Monday, Tue =  
Tuesday, Wed = Wednesday, Thu =  
AM  
Room  
Auto  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
Tp ii me d  
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
Day  
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
Mon  
Occupied 1  
System  
Heat  
TOe cmc pu op ri ea dr y  
S De at yC / Tu ri mr e  
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
s
at tt /i Cn go ol  
U
C
n
o
o
n
c
t
c
in  
u
o
p
u
ie  
s
d
System  
Fan  
Fan  
Thursday, Fri = Friday, Sat = Saturday.  
M4954A  
Set Day/Time  
Day  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
PM  
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
Tp ii me d  
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
Da
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
Tue  
TOe cmc pu op ri ea dr y  
S De at yC / Tu ri mr e  
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
s
at tt /i Cn go ol  
U
C
n
o
o
n
c
t
c
in  
u
o
p
u
ie  
s
d
System  
Fan  
Setting Program Times  
M4952B  
ᕡ Press Occupied Start Time.  
ᕣ Press increase ▲ or decrease ▲ key until the  
NOTE: Anytime a start time is not required,  
press the Clear Start Time.  
current time is displayed.  
NOTE: Tapping the Set Current Day/Time  
will change the time in one hour  
increments.  
Set ProgramStart Time  
Occupied  
Start Time  
AM  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
 me d  
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
Day  
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
Mon  
Occupied 1  
TOe cmc pu op ri ea dr y  
S De at yC / Tu ri mr e  
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
s
at tt /i Cn go ol  
U
C
n
o
o
n
c
t
c
in  
u
o
p
u
ie  
s
d
System  
Fan  
Set Day/Time  
M4955A  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
PM  
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
Tp ii me d  
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
Day  
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
TOe cmc pu op ri ea dr y  
S
De at yC / Tu ri mr e  
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
at tt /i Cn g  
o
s
ol  
Tue  
U
C
n
o
o
n
c
t
c
in  
u
o
p
u
ie  
s
d
System  
Fan  
M4953B  
7
63-4356—1  
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ᕢ Press Day until the desired day is displayed.  
ᕤ Press Occupied Start Time a second time to  
set a second Occupied Start Time.  
Set ProgramStart Time  
AM  
Set ProgramStart Time  
Day  
Set Program  
Set Temperature  
TiCm  
h
e
a/ Tn eg  
m
e
p
Pr Ro g  
u
r
n
am  
S
Ot ac cr t  
u
Tp ii me d  
e
U
S
nt oa cr t  
c
Tu ip  
m
ie  
e
d
ay  
O cT c  
e
u
mp pi ed  
UnoT  
c
e
c
mu pp ied  
Occupied  
Start Time  
TOe cmc pu op ri ea dr y  
S De at yC / Tu ri mr e  
e
nt  
St aC r lt e  
T
ai rm e  
Copy  
H
S
e
e
at tt /i Cn g  
o
s
ol  
Wed  
Occupied 1  
Set Program  
Set Temperature  
Change  
Time/Temp