Service Manual

Field Setting from Remote Controller SiUS281811E
128 Part 5 Field Settings and Test Operation
1.5.11 Compensating the Temperature around People
(For units with an infrared floor sensor)
Change the ratio between the suction air temperature and floor temperature used to calculate the
temperature around people.
The temperature around people is calculated using the values of the suction air thermistor and the
infrared floor sensor. The factory setting is Normal (the average value of the suction air temperature
and the floor temperature is applied). However, the rate at which the suction air thermistor and the
infrared floor sensor affect the temperature around people can be changed with this setting.
 To reflect the effect of the temperature around the ceiling, select the "Priority given on the
suction air temperature" (the Second code No. 02).
 To reflect the effect of the temperature around the floor, select the "Priority given on the floor
temperature" (the Second code No. 04).
 The infrared floor sensor can be disabled by selecting "Suction air temperature only" (the
Second code No. 01).
: Factory setting
1.5.12 Compensating the Floor Temperature when Heating
(For units with an infrared floor sensor)
Offset the detected value of the infrared floor sensor with a certain temperature. This setting should
be used to have the actual floor temperature detected when, for example, the unit is installed close
to a wall.
: Factory setting
Actual procedure to use the setting
Although the standard setting is normally used with no problem, the setting should be changed in
the following cases:
Mode
No.
First Code
No.
Second Code
No.
Contents
11 (21) 8
01 Suction air temperature only
02 Priority given on the suction air temperature
03
 Standard
04 Priority given on the floor temperature
Mode
No.
First Code
No.
Second Code
No.
Contents
11 (21) 9
01 –4°C (–7.2°F)
02 –2°C (–3.6°F)
03
 0°C (0°C)
04 2°C (3.6°F)
Environment
Operation
Mode
Problem Setting Value
- The unit is installed close to a wall or a window.
- High thermal capacity of the floor (such as
concrete, etc).
- There are many heat sources including PC.
- There is a non-negligible heat source such as
floor heating.
Heating
Excessive heating 2°C (3.6°F)
Insufficient heating
–2°C or –4°C
(–3.6°F or –7.2°F)