Honeywell PRO 4110D Programmable Thermostat Installation Guide
PRO TH4110D Programmable Thermostat
Power options & mounting
AC Power
The thermostat can be powered by 24
VAC power, or by batteries.
To wire the thermostat for AC power,
connect the common side of the
cooling transformer to the“C”terminal
as shown at left.
Connect common
side of transformer
to “C” terminal
Important:
Remove R/Rc jumper for
2-transformer systems only. (See wiring
diagram on page 5.)
Battery Power
The thermostat can be powered by
batteries alone or, if used with AC
power, can provide backup power.
During power interruptions the
batteries will save time/day settings
and power the display.
Install batteries in back of thermostat
(optional if AC powered).
To Mount Thermostat
Align the 4 tabs on the wallplate with
corresponding slots on the back of the
thermostat, then push gently until the
thermostat snaps in place.
7
| General | Details |
|---|---|
| Name | Honeywell PRO 4110D Programmable Thermostat Installation Guide |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.6 MB |

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