Configuration Menu; Battery Installation - Honeywell RTH111 Installation Manual

2.4 Fan operation setting
NOTE: This setting is not applicable if there is no fan connected to
the G terminal.
The jumper is located on the back of the thermostat faceplate. It
determines how the fan operates when placed in Automatic mode.
• HG (factory setting): Leave the jumper in this position for gas or oil
heating systems. In this position, the heating system controls the
fan operation and activates the fan only when the plenum air is
sufficiently warm.
• HE: Place the jumper to this position for electric heating systems.
In this position, the thermostat activates the fan only when there is
a call for heat.
Incorrect jumper setting:
• Incorrect HE setting in a gas or oil heating system: When
heating starts, you will initially feel cold air coming out of the vents
as the fan is running before the furnace has enough time to heat
up the air.
• Incorrect HG setting in an electric heating system: The fan will
not run when heating is activated.
2.5

Battery installation

Install two AAA batteries on the back of the thermostat
faceplate as shown.
2.6 Thermostat mounting

Align the two brackets on the top of the
thermostat with the corresponding slots on the
top of the wallplate.

Push the faceplate against the wallplate.

Tighten the screw at the bottom of the
thermostat.
RTH111/RTH221


Configuration menu

Follow the procedure below to personalize
and configure the thermostat according to the
heating/cooling system.

Press  and  simultaneously (for
three seconds) until the display appears
as shown on the right.

Press  or  to change the option.

Press  and  for one second to advance to the next function.

When the last function is displayed, press  and  for three
seconds to save any changes and exit the menu.
NOTE: If you do not press any button for 60 seconds while you are in
the setup menu, the thermostat automatically saves any changes
made and exits the menu. For the RTH221 programmable model
only, at any time you can save the changes and exit by pressing the
Run button.
Default
Function
setting
Temperature
1
display format
Time display
2
1
format
Heating cycles
3
2
per hour
1
Applies to RTH221 programmable model only.
2
The cooling cycle is fixed at 3 cycles per hour.
Options
0: Fahrenheit
0
1: Celsius
0: 12-hour display
0
1: 24-hour display
• 1: 60 min (steam, gravity)
• 3: 20 min (hot water, 90%+
5 high-efficiency furnace)
• 5: 12 min (gas or oil)
• 9: 6.7 min (electric)
3.
Function
number
Option
number
2/8