SiUS281811EA
Outline of Control (Indoor Unit)
Part 4 Functions and Control
141
Note(s)
6.11 3-Step Thermostat Processing (FTQ-TA Models)
Outline
The thermostat ON/OFF for the indoor unit is controlled in accordance with Thermostat step 1.
The heater ON/OFF operation during heating is controlled as follows.
Thermostat step 2, 3: Auxiliary electric heater control
Thermostat step 1, 2: Heat pump lockout control
For more details of the heater, refer to
Heater Control (FTQ-TA Models)
on page 137.
Detail
&
•
No errors (except errors in which the system keeps operating)
has occurred.
•
Remote controller ON
• Thermostat step 1: OFF
• Thermostat step 2: OFF
• Thermostat step 3: OFF
Other conditions
Perform the processing in
the following chart. (
∗
5)
g
n
i
t
a
e
H
)
2
(
g
n
il
o
o
C
)
1
(
Thermostat step 2
Thermostat step 1
ON
OFF
ON
OFF
2+
S
(
∗
1)
4+
S
(
∗
1)
A
(
∗
4)
B
(
∗
4)
Controlled temperature
(Tcon)(˚C)
Set temperature (Ts’)
Thermostat step 3
Thermostat step 2
Thermostat step 1
ON
OFF
ON
OFF
ON
OFF
1.5
1.5
Toff+
S
(
∗
1,2,3)
Ton+
S
(
∗
1,2,3)
A
(
∗
4)
B
(
∗
4)
Set temperature (Ts’)
Controlled
temperature
(Tcon)(˚C)
∗
1.
S
value varies automatically based on the room temperature trend.
∗
2. Ton +
S
> –
B
(°C), Toff +
S
<
A
(°C)
∗
3. For parameters, refer to page 156.
∗
4.
A
and
B
values vary automatically based on the field setting 12 (22)-2.
∗
5. If, directly after a change in conditions, it is such that the thermostat could be either ON or
OFF (controlled temperature is within ranges
A
and
B
), the thermostat will be switched to
ON.
Summary of Contents for SkyAir RZR-TA Series
Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811EA...
Page 202: ...SiUS281811EA 196 Part 6 Service Diagnosis 5 15 Fan Motor Connector Check for FTQ TA 311...
Page 323: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 317 RZR18 24TAVJUA RZQ18 24TAVJUA 3D124495...
Page 327: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 321 FHQ18 24 30PVJU FHQ36 42MVJU 3D048116C...
Page 328: ...Wiring Diagrams SiUS281811EA 322 Part 7 Appendix FAQ18 24TAVJU 3D114844B...
Page 329: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 323 FBQ18 24 30 36 42 48PVJU 3D065984J...
