7
Precautions and preparations listed are for general knowledge and to define basic guidelines. Local codes and existing practices should be observed and preformed by a professional.
Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
FIGURE 1
FIGURE 2
FIGURE 3
• Heat Mode
• Same operation as
Cool
mode; See specific operation for
Cool mode page 11
• This function only applies to the unit with heating function
• Auto Mode
• The same operation as
Cool
mode; See specific operation
for
Cool
mode page 11
• This function only applies to the unit with both cooling and
heating functions. The
AUTO
option will be invalid if the unit
is configured for cooling only
• The unit will run automatically to maintain the space
temperature, selecting either heating or cooling mode as
required by the space conditions
• When
AUTO
mode is selected, the unit will operate the
fan at low speed for 20-seconds, then enter into cooling,
heating, or fan mode depending on the deviation between
the space temperature and the set point temperature. The
default temperature is 77°F in this mode, and the unit will
run as noted in Table 4. The unit only runs in one functional
mode once it enters into cooling or heating mode
TABLE 4
Space temperature (Tr) Tr <70°F (criterial) 70F≤Tr≤79°F (criterial) 79°F≤Tr (criterial)
Function Mode
Heating
Fan
Cooling
• User can set new expected temperature from 51°F to 91°F
by touch “+” or “-” icon on the main screen, the unit will run
similarly as Table 4 but with different criterial temperature.
• Fan Only Mode
• To select
Fan Only
function and fan speed; see referenced
MODE and FAN SPEED instructions
• In Fan Only mode, the unit will only operate the indoor
evaporator fan
• Temperature cannot be set at this mode, “+” and “-” icon on
the main screen will be invalid
10. Fan Speed Display Related to Signal Output to Fan Motor
for Various Product Types
• When dip switch J4 = ON, i.e. 2 fan speed [Alternate: “fan
speed 2” or “dual fan speed operation”]; High, Low, and Auto
fan speed can be selected
• When dip switch J4 = OFF, i.e. 3 fan speeds [Alternate: “fan
speed 3” or “tri fan speed operation”]; High, Medium, Low
and Auto fan speed can be selected (option for future use)
• See Table 5 and Table 6 for fan speed set points and the
corresponding Signal Output to the fan motor for various
products
PTAC / FCU / Hybrid (J5 = ON)
TABLE 5
Function Mode
Cooling
Heating
Fan only
Set Point Display
LOW
HIGH
LOW
HIGH
LOW
HIGH
Signal output (J3 = On) Medium
High
Low
Medium Medium
High
Signal output(J3 = Off) Medium
High
Medium
High
Medium
High
WSHP / PTHP (J5 = OFF)
TABLE 6
Function Mode
Cooling
Heating
Fan only
Set Point Display
LOW
HIGH
LOW
HIGH
LOW
HIGH
Signal output (J3 = On) Medium
High
Medium
High
Medium
High
Signal output(J3 = Off) Medium
High
Medium
High
Medium
High
