Page 8 of 16 / IOM 1178-1
Installer/Configuration Menu
1. This control can be configured for:
HP1
– Heat Pump with one stage of compressor
(2 heat/1 cool)
HP2
– Heat Pump with two stage compressor system,
Electric backup; (4 heat/2 cool)
2.
Programs per week
– This control can be configured for
7 independent day or 5/1/1 day programming or non-
programmable modes. Default is 7-day mode. The display
indicates “7 Days” as default. Other options “5 Days” or
“0 Days” can be selected. If “0 Days” is selected for non-
programmable mode, the step for EMR will be skipped, as
this feature will not be available in this mode.
3.
Program Steps per day
– Not available if configured for
non-programmable. This control can be configured for 4
or 2 program steps per day. Default is “4 PS” and can be
toggled between 4 PS and 2 PS.
4.
System Switch Configuration
– This thermostat is
configured for Heat and Cool with Auto changeover
default (Cool-Off-Heat-Auto). It can be configured as
Heat & Cool (Cool-Off-Heat), or Heat Only (Off-Heat), or
Cool Only (Cool-Off).
5.
Energy Management Recovery (EMR)
– (this step is
skipped if configured as non-programmable). When set
to “On” causes the thermostat to start heating or cooling
early to make the building temperature reach the program
setpoint at the time you specify.
Example: The heating program is 65°F at night and 70° at
7 AM. If the building temperature is 65°F, the difference
is 5°F. Allowing 5 minutes per °F rise, the thermostat
setpoint will change to 70° at 6:35 AM. Cooling allows
more time per °F, because it takes longer to reach
temperature.
6, 7 & 8.
Cycle Rate Selection
– The factory default setting
is fast cycle (FA Cr) in all modes (Heat, Cool, Em).
To change to slow cycling (SL, Cr), press touch
keys
or toggle
between FA & SL. The cycle
rates are below:
Mode
Med
Slow
Heat
0.6°F
1.5°F
Cool
1.2°F
1.7°F
Heat Pump
1.2°F
1.7°F
Emer Heat
0.6°F
1.7°F
9.
Select Compressor Lockout (CL)
– Selecting (CL On
will cause the thermostat to wait 5 minutes between
cooling cycles. This is intended to help protect the
compressor from short cycling. The water source heat
pump MicroTech® III unit controller has a time delay
built in and does not require this feature to be activated
in the thermostat. When the thermostat compressor time
delay is activated, it will flash the set point for up to five
minutes.
10.
Select Continuous Display Lighting (dL)
– In low
lighting conditions, display backlight improves the display
contrast. When C terminal is connected, selecting dL On
will turn the display light on continuously. Selecting dL
Off will turn the display light on momentarily after any
key is pressed. When C terminal is not powered (battery
only), dL On enables the momentary backlight whenever a
key is pressed.
Continuous Display Lighting without common wire
connection
– When thermostat is Battery Powered with
Power Stealing assist with low voltage 24V connections
to both W and Y terminals, selecting dL “On” will provide
continuous display light.
Note:
If power stealing operation is not compatible with
either the W or Y connection (see
"Power Stealing
Switches" on page 3
), or if only a single connection
to W or Y, continuous display light will be interrupted
when the active power stealing connection (W or Y)
is operating the system. In power stealing mode, the
continuous display light will increase in brightness
when a button is pressed. And on some systems with
high impedance, the display light may dim slightly
when thermostat is calling for heat or cool.
11.
Select Temperature Display Adjustment 5 LO to 5 HI.
This allows you to adjust the room temperature display by
-5°F to +5°F in 1° steps. Your thermostat was accurately
calibrated at the factory, however you have the option
to change the display temperature value to match the
previous thermostat, if you so prefer.
12.
Select °F or °C Readout
– Changes the display readout to
Celsius or Fahrenheit as required.
13.
Select Audio Prompting (Beeper) On or Off
– Factory
default setting is b, On. If you wish to turn off the beeper
select OFF.
14.
Select Daylight Saving Time Calculation
– This
feature will allow the thermostat to calculate the DST
automatically and apply it to the Real Time Clock display.
Default is On.
15 & 16.
Select Automatic Schedule
– Not available if
configured for non-programmable. This feature
allows programming a “Comfort Temperature”
into all program periods with the Auto Schedule
key. When Heat AS (for Heat mode) or Cool AS
(for Cool mode) is selected On, the Auto Schedule
feature is ready to be set. Off indicates that the
feature is not ready to be used or a “Comfort
Temperature” is already set. See Auto Schedule in
Programming section.
