Fujitsu ACUH09LUAS1 Design & Technical Manual page 43

 Auxiliary equipment control by room temperature
Auxiliary equipment control is switchable by room temperature. Auxiliary equipment switching is per-
formed for each room temperature divided to following 3 zones.
Ts +0.9°F (0.5 °C)
Ts
Ts -0.9°F (0.5 °C)
Zone Application
Both of primary and auxiliary equipment
A
is unnecessary.
Primary heater only.When room
B temperature stays in zone B for a long
time, auxiliary equipment also operates.
C Auxiliary equipment also operates.
*1: For standby time for auxiliary equipment operation, refer to indoor unit function number 71
tents of function setting"
*2: When indoor unit function number 61 is set to "00", auxiliary equipment operates according to the
following conditions.
• Ts - Tr > 21.6 °F (-12.0 °C): Auxiliary equipment turn off.
• Ts - Tr > 18.0 °F (-10.0 °C): Auxiliary equipment turn on.
8-4. Details of function
Tr
Zone A
Zone B
Zone C
When temperature dropping
Primary
on page 57.
Ts: Setting temperature
Tr: Room temperature
Auxiliary
Off Off
1
On
Off*
2
On
On*
- 39 -
When temperature rising
Primary Auxiliary
Off Off
— —
2
On
On*
"Con-
8. External input and output