53DFS250-HW Thermostat
® U.S. Registered Trademark.
US Patent No. 7,114,554, 7,181,317, 7,225,054, 7,274,972, 7,636,604,
7,693,582 and other patents pending.
All rights reserved.
Installation
Guide
69-2565-05
R
R
System Types
• Cool Only (single stage)
• Heat Pump (with electric heat)
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
MERCURY NOTICE:
If this product is replacing a control that contains mercury in
a sealed tube, do not place the old control in the trash. Contact your local waste
management authority for instructions regarding recycling and proper disposal.
Must be installed by a trained, experienced technician.
Read these instructions
carefully. Failure to follow these instructions can damage the product or cause a hazardous
condition.
Select Thermostat Location
Select a location for the thermostat about 5 ft (1.5m) above the floor in an area with good air
circulation at average temperature.
Do not install the thermostat where it can be affected by:
5 FEET
[1.5 METERS]
YES
NO
M22258
NO
NO
• Drafts or dead spots behind doors
and in corners.
• Hot or cold air from ducts.
• Radiant heat from sun or
appliances.
• Concealed pipes and chimneys.
• Unheated (uncooled) areas such
as an outside wall behind the
thermostat.
