Carrier P/N 33CSSN2-MH User manual
OWNER'S MANUAL
P/N 33CSSN2-MH
Digital Thermostat
Designed specifically for the Lodging Industry
Use with most Air Conditioning & Heating Systems
including: 1 or 2 Stage Electric Cooling & Gas Heating,
Heat Pump, Electric, PTAC or Hydronic Heat.
Commercial Systems & Services Carrier Corporation 9/00
For Fan Coil Applications: Auto Changeover is available in 4 pipe configuration,
or in 2 pipe systems with Electric Heat, or when used with 33CSWCO-FC
accessory, auto changeover sensor.
Displays Setpoint, Only
Easy, Pushbutton Control
Adjustable Setpoint Limits
Large, Easy To Read Display
Multi Fan Speed Control
Heating / Cooling
Auto Changeover
WARMERCOOLER
F / C
FAN
*
*
FAN AUTO
TO SET, PRESS OR
F
72
Carrier
Table Of Contents
FRONT PANEL
DISPLAY
BASIC OPERATION
ADVANCED SETUP
EQUIPMENT SETUP TABLE
ABOUT ADVANCED OPERATION
WARRANTY
Page 1
CAUTION
Follow Installation Instructions before proceeding.
SET THERMOSTAT TO MODE “OFF” PRIOR TO
CHANGING SETTINGS IN SETUP OR RESTORING
FACTORY DEFAULTS.
P/N 33CSSN2-MH
2
3
4
5
8
9
11
Commercial Systems & Services Carrier Corporation 9/00
Front Panel - Normal Display
Page 2
Liquid Crystal Display
Up/Down Buttons
F / C Button
Fan Button
1
2
3
4
2
4
3
1
WARMERCOOLER
F / C
FAN
FAN AUTO
TO SET, PRESS OR
F
72
1
2
4
5
6
3
Desired Set Temperature
Indicates desired room temperature.
Fan Operation Indication - Up to 3 Speeds
When FAN AUTO is displayed, the fan speeds
will increase or decrease based on
temperature demand.
Setup Indication
Indicates the thermostat is in the Advanced
Setup mode. These icons indicate the
parameter to be adjusted. (Displayed in
Setup mode only)
Degrees F or C Indication
Indicates if the setpoint readout is in Fahrenheit
or Centigrade.
Cooling or Heating Indicators
Indicates that the Diagnostic Mode is active.
Display
Page 3
FAN AUTO
FAN ON
FAN LOW
FAN MED
FAN HIGH
TO SET, PRESS OR
CYCLES/HOUR
COOLING
HEATING
ON
DEADBAND
OFF MINMAX SETPOINT
8
88
EQUIPMENT TYPE #
FAN PURGE
ROOM TEMP
1
2
3
4
5
6
buttons.
In any mode, adjust the
desired Set Temperature
with
Select Desired Temperature
Fan Operation
Page 4
Basic Operation
On, Auto, Low, Medium & High speed fan indicators.
When Fan Auto is displayed, the fan speeds
will increase or decrease based on
temperature demand.
For configurations with a single speed fan, pressing FAN will toggle
operation between Fan On and Fan Auto.
The example below illustrates a 3 speed fan system. Your system
may not have 3 fan speeds, so it may vary from this example.
Press
FAN
Press Press Press Press Press
FAN FAN FAN FAN FAN
LOW SPEED MED SPEED HIGH SPEEDAUTOOFF
FAN AUTO
FAN ON
FAN LOW
FAN MED
FAN HIGH
FAN AUTO
TO SET PRESS, OR
f
70
Advanced Setup IAdjusting Setpoint Limits
Press
Press
Press
To exit setup
screens:
Adjust the minimum
temperature limit.
(60 - 85)
Default = 67 degrees
Adjust the default
temperature when the
unit is powered up or
turned on.
(60 - 85)
Default = 72 degrees
Adjust the maximum
temperature limit.
(60 - 85)
Default = 80 degrees
F / C
Press the Fan button
for 5 seconds to enter
these Setup screens.
Note: Set the thermostat to ‘OFF’ mode before adjusting settings.
FAN
FAN
NOTE: Each step’s description is
located at
corner of the
easy reference.
the top right
display for
TO SET PRESS, OR
MIN SETPOINT
SETPOINT
67
72
MAX SETPOINT
80
Press
FAN
Note: The user may select any desired temperature
between 60 and 85 degrees. However, the thermostat
will not attempt to cool or heat the room beyond the
minimum or maximum setpoint limits.
Page 5
TO SET PRESS, OR
TO SET PRESS, OR
Advanced Setup II INSTALLATION
Press
Press
Press
Press the Fan button
for 10 seconds to enter
these Setup screens.
NOTE: Each step’s description is
located at
corner of the
easy reference.
the top right
display for
FAN
FAN
FAN
FAN
Adjust the minimum
temperature setpoint
that is used when the
thermostat indicates OFF.
Heat will come on when the
temperature falls below this
setpoint.
Select the cycles per
hour limit.
d=cycles per hour
limit defeated.
(d, 2 - 6)
Default = 6 cycles / hour
Default = 2 degrees
Default = 60 degrees
Adjust the deadband
from 1 - 6 degrees F.
Deadband is the difference
between Room temperature
& setpoint before the
equipment will turn on.
This step only appears in compressor equipped systems.
CYCLES/HOUR
DEADBAND
OFF MIN SETPOINT
6
2
60
Note: Set the thermostat to ‘OFF’ mode before adjusting settings.
Continued
Page 6
TO SET PRESS, OR
TO SET PRESS, OR
TO SET PRESS, OR
The purpose of d1 is to allow the installing technician
to override the thermostats 5 minute compressor lockout.
After installation is complete this setting should be set between
d and 6 cycles per hour.
This feature prevents rooms from getting to hot or too cold
when heating or cooling is turned off.
Advanced Setup II (continued)
Page 7
INSTALLATION
Press
To exit setup
screens:
F / C
Continued from prior page.
Press
FAN
Default = 30 seconds
Adjust the length of time
the fan will continue to
run after the temperature
is satisfied. (To purge
the system)
(0-90 seconds, in 15
second increments)
FAN PURGE
30
TO SET PRESS, OR
Select the type of equipment
this thermostat is connected
to, from the table on the
next page.
EQUIPMENT TYPE #
i
TO SET PRESS, OR
Adjust the maximum
temperature setpoint
that is used when the
thermostat indicates OFF.
Cooling will come on when
the temperature rises
above this setpoint.
Default = 85 degrees
OFF MAX SETPOINT
85
TO SET PRESS, OR
Press
FAN
This feature prevents rooms from getting to hot or too cold
when heating or cooling is turned off.
Advanced Setup
Page 8
Select the type of equipment this thermostat is connected
to, from the table above.
INSTALLATION
Equipment Setup Table
4 pipe fan coil, 3 speed fan
1 stage PTAC, 2nd stage strip heat, 1 speed fan, B reversing valve
1 stage PTAC, 2nd stage strip heat, 2 speed fan, B reversing valve
1 stage PTAC, 1 speed fan, B reversing valve
1 stage PTAC, 2 speed fan, B reversing valve
1 stage PTAC, 3 speed fan, B reversing valve
1 stage PTAC, 1 speed fan, O reversing valve
1 stage PTAC, 2 speed fan, O reversing valve
1 stage PTAC, 3 speed fan, O reversing valve
1 stage PTAC, 2nd stage strip heat, 1 speed fan, O reversing valve
1 stage PTAC, 2nd stage strip heat, 2 speed fan, O reversing valve
A/C, strip heater, 1 speed fan
A/C, strip heater, 2 speed fan
A/C, strip heater, 3 speed fan
A/C, gas, 1 speed fan
4 pipe fan coil, 1 speed fan
4 pipe fan coil, 2 speed fan
2 pipe fan coil, 1 speed fan, H2O changeover sensor required
2 pipe fan coil, 2 speed fan, H2O changeover sensor required
2 pipe fan coil, 3 speed fan, H2O changeover sensor required
Climate Master with a CXM Control Board
Climate Master with a DXM Control Board
2 pipe fan coil, 3 speed fan, IEC
4 pipe fan coil, 3 speed fan, IEC
2 pipe fan coil, 1 speed fan, part-time auxillary heat
2 pipe fan coil, 2 speed fan, part-time auxillary heat
2 pipe fan coil, 3 speed fan, part-time auxillary heat
2 pipe fan coil, 1 speed fan, part-time auxillary heat, IEC
2 pipe fan coil, 2 speed fan, part-time auxillary heat, IEC
2 pipe fan coil, 3 speed fan, part-time auxillary heat, IEC
Carrier PTAC, 1 speed fan, B reversing valve, Special
4 pipe fan coil modified to a 2 stage heat or cool only, 3 speed fan
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
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31
32
About Advanced Features & Operation
Page 9
DIAGNOSTIC MODE - Press and hold the F / C button for
5 seconds to enter diagnostic mode. Once active, the
main display will alternately show the setpoint and then
the room temperature for 2 second intervals.
Exit the diagnostic mode by pressing F / C again or
turning the thermostat off.
FACTORY DEFAULTS - If, for any reason it is desirable to
return all stored settings back to the factory default
settings, press the Fan button. While holding the Fan
button in, press the Down button for 2 sec. All icons will
appear. Press and hold in the F / C button until Fd
appears. This resets all factory settings, except for the
equipment type.
TO CALIBRATE
At this point use the Up and Down buttons to calibrate
room temperature, if needed. Press the Fan button to
return to normal operation.
ROOM TEMPERATURE - To calibrate the
room temperature display, press and hold the Fan button.
While holding the fan button in, press and hold in the
Down button for 2 seconds. All icons will appear on the
display. Release the Fan button. Press the Fan button
once more.
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