Offsets; Indoor Temperature; Remote Temperature; Outdoor Temperature - Nordyne iQDrive User Manual

Many factors such as a room's air fl ow, direct sunlight
on the thermostat, positioning of the thermostat near
windows, doors, etc. can cause the temperature or
relative humidity on the Main Screen to vary from
the actual value. Offsets can be used to balance out
these fl uctuations so that the temperature on the
Main Screen more closely refl ects the temperature of
the living space. Temperature offsets can be changed
to ±5 degrees. The relative humidity has a range of
±10%. The default setting for all the offsets is 0.
• INDOOR TEMPERATURE: the temperature of the
living space and is the largest number displayed
on the Main Screen.
• REMOTE TEMPERATURE: this offset is not used
with standard system equipment.
• OUTDOOR TEMPERATURE: the measured
temperature at the outdoor unit (heat pump or air
conditioner) and is displayed on the Main Screen.
• RELATIVE HUMIDITY: the humidity level measured
at the thermostat and shown on the Main Screen.
• HEAT ANTICIPATOR: The heat anticipator tells the
furnace when to shut off as the room reaches the
desired temperature. This also affects how much
temperature swing will occur in the room. The
heat anticipator function operates similar to the
anticipator found in older thermostats and is only
used with 1 or 2 stage conventional furnaces. This
setting should only be changed after consulting
with your dealer.
1. Select MENU on the Main Screen using the
or button.
2. Press the button.
3. Select SETTINGS using
the or button.
4. Press the button.
5. Select OFFSETS using
the or button.
6. Press the button.
7. Select an offset from the list using the
button.
8. Press the button. The option will blink in the
display indicating the offset can be changed.
9. Change the offset:
• The button raises the offset.
• The button lowers the offset.
10. Press the button to save the setting.
11. Repeat steps 7-10 for additional offsets.
14

Offsets

Relative Humidity (RH) is the ratio of water vapor in
the air compared to the maximum amount of water
vapor the air can hold at the same temperature. RH
is typically expressed as a percentage and is closely
related to personal comfort. When humidity is high
we tend to feel hotter than the actual temperature
and when humidity is low, the air is drier and we
feel cooler.
While the iQ Drive compatible indoor furnace or
air handler will always provide a humidifi er control
output, actual humidifi cation equipment is optional
and not provided with the heating units.
A limited capability for dehumidifi cation control
is provided with all iQ Drive air conditioning and
heat pump systems and in iQ Drive modulating
furnace systems coupled with any compatible air
conditioner or heat pump. Dehumidifi cation is not the
primary function of an iQ Drive component. It may
not be able to fully dehumidify under all conditions.
Dehumidifi cation may be enabled or disabled by
changing the setting in the OPTIONS screen. See
page 12.

Humidify / Dehumidify

1. Select RH on the Main Screen using the
or button.
2. Press the
3. Press the
settings.
4. Select HUMIDIFY or
DEHUMIDIFY using the
or button.
5. Press the
6. Change the HUMIDIFY/
DEHUMIDIFY setpoint:
(5% increments only)
• The button raises the
humidity.
or
• The button lowers the
humidity.
7. Press the
save the setting.
8. Press the button to exit
the Humidity Settings
screen.

Humidity Control

button.
button to access the humidity
1/19/09
OUTDOOR
46
70°
button.
HUMIDITY
12
RH
TEMP
button to
10:00 AM
FAN AUTO
HEAT
HEAT 70
COOL 80
MODE MENU
FAN