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©2017 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE OWNER
FOR FUTURE REFERENCE
Shipping and Packing List
Shipped with Product
1 - Thermostat
2 - Plastic wall anchors
2 - Screws
1 - Operation manual
Optional Accessories (not included)
Remote indoor sensor: 47W37
Wall Plate: X2659
INSTALLATION INSTRUCTION
C0STAT05FF1L CS3000
Commercial Programmable
CONTROLS
507517-02
6/2017
Supersedes 507517-01
C0STAT05FF1L 5/2 Day Programmable
Thermostat
The Lennox ComfortSense
Programmable
Thermostat,
(11Y05) is a 5/2 day programmable and 2-heat / 2-cool
electronic thermostat. This thermostat is suitable for the
following Lennox Commercial systems:
•
Heat/cool systems (conventional)
•
Packaged heat pumps (2-20 tons)
•
Split heat pump systems (7-10 tons)
NOTE - Not for use with small 3-5 ton split heat pump
systems.
Thermostat
®
3000 Series Commercial
Model
C0STAT05FF1L
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Summary of Contents for Lennox C0STAT05FF1L
- Page 1 ©2017 Lennox Industries Inc. Dallas, Texas, USA Commercial Programmable Thermostat CONTROLS 507517-02 6/2017 Supersedes 507517-01 C0STAT05FF1L 5/2 Day Programmable Thermostat THIS MANUAL MUST BE LEFT WITH THE OWNER FOR FUTURE REFERENCE ® The Lennox ComfortSense 3000 Series Commercial Shipping and Packing List...
- Page 2 It includes a programmable filter change reminder, IMPORTANT equipment maintenance reminder and a system check indicator to notify the user when the equipment requires Read all of the information in this manual before using this service. thermostat. The remote indoor sensor when connected and configured All wiring must conform to local and national building and will act as a room temperature sensor instead of internal electrical codes and ordinances.
-
Page 3: Installation
3. Use a screwdriver to remove the thermostat sub-base Requirements from the body. Carefully pry the sub-base away from the body along the bottom edge of the sub-base near the Be sure that power routed to the thermostat has been powered two mounting snaps;... - Page 4 (releasing the snaps), then lift up to remove. Common 24VAC Thermostat Terminals Remote Indoor Temperature Sensor On Lennox Commercial heat pumps listed below the connection 1 reversing valve is controlled by W1 through a transfer relay. Remote Indoor Temperature Sensor •...
-
Page 5: Dip Switch Settings
However, if SSR is enabled, the HVAC equipment will respond to a program change before the change is set to occur. Refer to table 3 for DIP switch function descriptions. Thermostat Calibration OC R Y1 W1 Y2 W2 G Cal 1, Cal 2, Cal± DIP switches may be used to offset or recalibrate the room temperature display. - Page 6 Table 3. DIP Switch Function Description Dip switch Description Default Cal 1 Room temperature offset: 1°F 0°F 1°F 0°F Cal 2 Room temperature offset: 2°F 0°F 2°F 0°F Cal +/- Room temperature offset: Sign Positive Negative Positive Temp Sensor (I/R) Select Int / Ext (Remote) for selecting Internal Remote...
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