Fujitsu AUUH18LUAS Service Manual page 210

 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.→hen 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: →hen 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.
3-5. Details of control output function
Tr
Zone A
Zone B
Zone C
When temperature dropping
Primary
on page 05-1.
- (05-28) -
Ts: Setting temperature
Tr: Room temperature
Auxiliary
Off Off
On 1
Off*
On 2
On*
When temperature rising
Primary Auxiliary
Off Off
— —
On 2
On*
"Con-
3. External input and output (for indoor unit)