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FocusPRO
®
TH5320
5 69-2019EFS—02
CAUTION: Compressor protection is bypassed during testing. To prevent equipment
damage, avoid cycling the compressor quickly
Special function
Auxiliary heat control (Setup Function 26):
• Comfort Setting: The thermostat will prioritize comfort over economy depending on heat
pump performance, load conditions and whether the thermostat is calling for the heat
pump. Raising the temperature just a few degrees will often activate the auxiliary heat.
• Economy Setting: The thermostat will attempt to reach the temperature setting
without activating the auxiliary heat. The thermostat will wait to activate the auxiliary
heat depending on heat pump performance, load conditions and how many degrees the
temperature setting is changed.
Diagnostic Codes (Setup Function 19):
When Error Codes are present the home screen of the thermostat will display “SERVICE NEEDED”
and scroll through all active error codes. Setup Function 19 will display a list of the 10 most recent
error codes, both active and inactive. The number on the right of the thermostat will show the
number of active and inactive error codes saved in the thermostat. To view the error codes press
the up arrow. To clear the list, press and hold both the up and down arrow keys. Active errors can
not be cleared; the source of the error must be resolved prior to clearing from the list.
Accessories & replacement parts
Please contact your distributor to order replacement parts.
Part Description Part Number
Small cover plate assembly* 50001137-001
Medium cover plate assembly* 50002883-001
12 pack of small cover plates* 50007297-001
12 pack of medium cover plates* 50007298-001
EnviraZONE Zone panel W8835A1004
Equipment Interface Module for 2H/2C conventional systems W8635A1006
Equipment Interface Module for 2H/2C heat pump systems W8635B1004
Telephone Access Module W8735B1003
2-Channel Telephone Access Module W8735D1009
4-Channel Telephone Access Module W8735D1017
*Use to cover marks left by old thermostats.
Temperature Ranges
• Heat: 40° to 90°F (4.5° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)
Operating Ambient Temperature
• 32° to 120°F (0° to 48.9°C)
Shipping Temperature
• -20° to 120°F (-28.9° to 48.9°C)
Operating Relative Humidity
• 5% to 90% (non-condensing)
Physical Dimensions
TH5220D
• 3-9/16” H x 5-13/16” W x 1-1/2” D
91 mm H x 147 mm W x 38 mm D
TH5110D
• 3-7/16” H x 4-1/2” W x 1-5/16” D
86 mm H x 114 mm W x 33 mm D
Specifications
70 Thermostat information
(for reference only)
71 Software Revision Number (major revisions)
72 Software Revision Number (minor revisions)
73 Configuration Identification Number (major)
74 Configuration Identification Number (minor)
75 Production configuration date code (week)
76 Production configuration date code (year)
System test System status