Main Functions
SiUS042113E
34
Part 4 Functions and Control
Reference
1.8 Thermostat Control
Outline
Thermostat control is based on the difference between the room thermistor temperature and the
target temperature.
Details
Thermostat OFF Conditions
The temperature difference is in the zone A.
Thermostat ON Conditions
The temperature difference returns to the zone C after being in the zone A.
The system resumes from defrost control in any zones except A.
The operation turns on in any zones except A.
The monitoring time has passed while the temperature difference is in the zone B.
(Cooling: 10 minutes, Heating: 10 seconds)
Cooling
Heating
Refer to Temperature Control on page 24 for details.
Zone B
Zone B
Zone A
Zone A
OFF
OFF
ON
ON
Zone C
Zone C
Room thermistor temperat
u
re – target temperat
u
re
–1.0°C (–1.8°F)
–2.0°C (–3.6°F)
(R24031)
–0.5°C (–0.9°F)
–1.5°C (–2.7°F)
Zone B
Zone B
Zone A
Zone A
OFF
OFF
ON
ON
Zone C
Zone C
2.0°C (3.6°F)
1.0°C (1.8°F)
0.5°C (0.9°F)
1.5°C (2.7°F)
2.0°C (3.6°F)
Room thermistor temperat
u
re – target temperat
u
re
(R24033)
Summary of Contents for FTXM-V Series
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Page 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Page 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
