Honeywell International Inc.
1985 Douglas Drive North
http://customer.honeywell.com
Automation and Control Solutions
® U.S. Registered Trademark.
© 2009 Honeywell International Inc.
Honeywell Limited-Honeywell Limitée
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
Special function
Auxiliary heat control (Setup Function 26):
Comfort Setting: The thermostat will prioritize comfort over economy depending on 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
temperature setting is changed.
Accessories & replacement parts
Please contact your distributor to order replacement parts.
Part Description Part Number Use With
Battery holder 50000951-001 TH5110D
*Use to cover marks left by old thermostats.
Specifications
Temperature Ranges
Operating Ambient Temperature
Shipping Temperature
Operating Relative Humidity
Physical Dimensions
TH5220D
TH5110D
Electrical Ratings
W
W2
Y
Y2
G
O/B
E
L
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