Daikin SkyAir RZR-TA Series Service Manual page 144

Outline of Control (Indoor Unit)
6.10.1 Auxiliary Electric Heater Control
If heating is insufficient in heat pump system alone, an electric heater is to be used as the auxiliary
heater. The following shows the ON/OFF conditions for the electric heater.
• Heating/Automatic heating
&
• Auxiliary heater enabled: 1
Heater allowed
• Condition A
& • Time up
• Thermostat step 2: ON
H/P Heating: In operation
• Thermostat step 3: ON
• Time up
&
• Electric heater capacity
setting (∗5): Setting available
138
Heater not allowed
Thermostat OFF/Operation OFF
Thermostat ON
H/P Heating: In operation
Heater 1: OFF
Heater 2: OFF
Fan: ON
ENTRY/
5 minutes timer starts.
Heater 1: ON
Heater 2: OFF
Fan: ON
ENTRY/
5 minutes timer starts.
H/P Heating: In operation
Heater 1: ON
Heater 2: ON
(OFF for single heater)
Fan: ON
• Not in heating/Automatic heating
OR
• Auxiliary heater enabled: 0 (∗3)
Heater 1: OFF
Heater 2: OFF
Heater 1: OFF
Heater 2: OFF
Thermostat OFF
H/P In defrost/oil return
Condition B
Condition B
• Not Condition A
OR
• Thermostat step 2: OFF
• Thermostat step 3: OFF
• Electric heater capacity setting:
OR
Setting not available
Thermostat OFF
Thermostat ON
Condition C
Heater 1: ON
Heater 2: OFF
Fan: ON
Not
Condition B
Not
Condition A
Part 4 Functions and Control
SiUS281811EA