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Outline of Control (Indoor Unit)
SiUS281811EA
140
Part 4 Functions and Control
Note(s)
6.10.2 Heat Pump Lockout Control
For heating operation, users can select to use electric heater. For this, signals are sent using ABC
terminal of outdoor unit PCB.
When the hot-water heating signal is received from the outdoor unit PCB, heating operation is
performed only with the electric heater as manual backup operation. The ON/OFF conditions for
the electric heater are shown below.
Thermostat OFF/Operation OFF
ENTRY/
5 minutes timer starts.
• Condition A
• Time up (
∗
2)
&
H/P Heating: Not in operation
Heater 1: ON
Heater 2: OFF
Fan: ON
Entry/
5 minutes timer starts.
&
OR
• Thermostat step 2: OFF
H/P Heating: Not in operation
Heater 1: ON
Heater 2: ON
(OFF for single heater)
Fan: ON
• Electric heater capacity setting:
Setting not available
• Thermostat step 2: ON
• Time up
• Electric heater capacity
setting: Setting available
Not
Condition A
Not
Condition A
&
Condition A
OR
Condition B: Heater backup prohibiting conditions (
∗
1)
•
Heating or automatic heating mode
•
Thermostat step 1: ON
•
No fan motor system error
•
Hot-water heater: 1 (ON)
•
Heater backup prohibiting conditions (
∗
1) not met
(Not Condition B)
•
Indoor unit error (Abnormal stop)
•
Indoor unit error (Remote controller thermistor error)
•
Indoor unit error (Remote sensor error)
•
Electric heater capacity setting: 01 (No heater kit)
∗
1: The heater backup prohibiting conditions are prioritized. Even when the heater ON
conditions are met, the heater is turned OFF when the prohibiting conditions are met.
∗
2: When the remote controller is ON, Time-up will be set to the initial value.
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...