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AUTO SWITCH OPERATION
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and horizontally
by bolt nut. (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly with
bolt or nails.
Connecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portion
of tube assembly) onto the copper pipe. (In case of using long
piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare
nut with fingers.
• Further tighten the flare nut with torque wrench in specified
torque as stated in the table.
MODEL Piping size (Torque)
Gas Liquid
E18CK, E21CK 1/2” (55 N.m) 1/4” (18 N.m)
The below operations will be performed by pressing the “AUTO” switch.
1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the Auto Switch is pressed.
2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)
The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 8 sec. A “beep”
sound will occur at the fifth sec., in order to identify the starting of Test Run operation
3. HEATING TRIAL OPERATION
Press the AUTO Switch continuously for more than 8 sec. to below 11 sec. and release when a “beep beep” sound is occurred
at eighth sec. (However, a “beep” sound is occurred at fifth sec.)
4. REMOTE CONTROL RECEIVING SOUND ON/OFF
The ON/OFF of Remote Control receiving sound can be changed over by following steps:
a. Press “AUTO” switch continuously for more than 16 sec. to below 21 sec. A “beep”“beep”“beep”“beep” sound will occur
at sixteenth sec.
b. Press the “Check” button once at Remote Control. A “beep” sound will occur.
c. Press the “AUTO” switch once to select Remote Control receiving sound ON/OFF. A “beep” sound indicates receiving sound
ON, and a “beep” sound indicates receiving sound OFF.
11.3. OUTDOOR UNIT
11.3.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section)
11.3.2. INSTALL THE OUTDOOR UNIT
11.3.3. CONNECTING THE PIPING
Connecting The Piping to Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut
(located at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.
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