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Electronic thermostatic
expansion valve
Gas tube valve
ON
ON
ON
20 pulses
20 pulses
20 pulses
A gas tube valve kit may be connected to the Type D indoor unit. When the gas tube valve kit is connected,
operations of gas tube valve kit and indoor unit electronic thermostatic expansion valve are as shown in the
table.
Stopped
Fan
CoolingHeating
Superheat control (65 – 480)
20 pulses
Superheat control (50 – 480)
OFF
OFF
OFF
OFF
Thermostat
Thermostat
Thermostat
Thermostat
OFF
ON
OFF
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W-2WAY ECO-i SYSTEM
Control Functions
11. Rap Valve Kit Control