HAI OMNI IIe, Руководство по установке, Страница: 27 / 74

Page 21
a. An outdoor temperature switch that prevents the auxiliary heat from coming on unless it is very cold outside. This is
sometimes called a "heat balance" switch.
b. A thermostat that uses rate of rise to determine if auxiliary heat is necessary: The Enerstat Model DSL-450. When
recovering from setback, the thermostat runs the heat pump first. It will run the auxiliary heat only if the rate of
temperature rise is less than 6 degrees F. per hour.
c. An alternative auxiliary heat source that is inexpensive (i.e. gas).
These features will avoid the use of auxiliary heat (usually an electric strip heater) which is more expensive than using the
heat pump when recovering from setback. In general, heat pumps take a longer time to recover from setback, so it may be
advantageous to program a setback only for extended periods, such as a vacation.
TEMPERATURE, OUTDOOR TEMPERATURE, AND HUMIDITY
When connected to the controller, the Model 31A00-1 (31A00-7 Extended Range) Indoor/Outdoor Temperature and Model
31A00-2 (31A00-8 Extended Range) Indoor/Outdoor Temperature and Humidity Sensor is used for sensing indoor temperature
and/or reporting the relative humidity from 0 to 100 percent or for sensing the outdoor temperature and/or reporting the outdoor
relative humidity. The outdoor temperature can be displayed on the console, spoken over the telephone, or displayed on an HAI
Communicating Thermostat.
1.
Each Temperature Sensor requires one zone input. Each Humidity Sensor requires one zone input.
- Program the zone type as an Outdoor Temperature (Type 81), Temperature (Type 82), Temperature Alarm (Type 83),
for temperatures between 0
o
F - 120
o
F
-
Humidity (Type 84), for humidity between 0% – 100%
- Extended Range Outdoor Temperature (Type 85), Extended Range Temperature (Type 86), and Extended Range
Temperature Alarm (Type 87), for temperatures between -40
o
F - 120
o
F
2.
When mounting outdoors, plan to mount under an overhang or to the underside of an eave, otherwise known as the soffet, to
protect it from direct sunlight and rain. Run a 4-conductor wire from the Omni IIe controller to the selected location.
RED
BLACK YELLOW
GREEN
YELLOW
BLACK
RED
GREEN
12V
GN
D
H
T
INDOOR / OUTDOOR TEMPERATURE
AND HUMIDITY SENSOR
FIGURE 12 - TEMPERATURE / HUMIDITY SENSOR CONNECTIONS