System Installation Guide
4
69-2688—11 I/O-CHTSTAT03
Install thermostat
1
Thermostat Mounting
Mount the thermostat approximately 5 feet from the floor on an interior wall using the
included screws and anchors. Drill 3/16" holes for drywall and 7/32" holes for plaster.
Do not install the thermostat where it can be affected by:
• 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.
Terminal Functions:
1 - Data 1
2 - Data 2
R - 24 volt power
C - 24 volt common
Wire Gauge:
18 gauge wire is recommended. Maximum wire distance between the ComfortNet
thermostat and the IFC should not exceed 100 feet using 18 gauge wire.
MCR33170
1
2
R
C
1
2
R
C
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