koppel ERA series Owner's Manual page 20

Installation Instructions
How to Purge Air Tubes
(1). Unscrew and remove caps from 2 and 3-way valves.
(2). Unscrew and remove cap from service valve.
(3). Connect vacuum pump flexible hose to the service valve.
(4). Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.
(5). With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop
vacuum pump.
(6). Open 2-way valve 1/4 turn then close it after 10 seconds. Check tightness of all joints using liquid
soap or an electronic leak detector.
(7). Turn 2 and 3-way valves stem to fully the valves. Disconnect vacuum pump flexible hose.
(8). Replace and tighten all valve caps.
Test Running
Connect to the power source, check if the function selection keys on the remote controller are working
properly.
Check if the room temperature adjustments and timer settings are working properly.
Check if the drain is smooth.
Check if there is any abnormal noise or vibration during operation.
Check if there is leakage of refrigerant.
ATTENTION:
If there is no power plug along with the air conditioner,the power cord should be connected to an air
switch ,whose current carrying capacity should be more than 20A and the minimum open-circuit
distance among the live polar pole,the neutral polar pole and the ground polar pole should be more
than 3mm.For any malfuctions,please cut off the supply by the air switch and contact the manufacturer
or its service agent.
The appliance shall be installed in accordance with national wiring regulations.
If the supply cord is damaged. it must be replaced by the manufacturer or its service agent or a
similarly qualified person in order to avoid a hazard.
NOTE
Please read this manual before installing and using it.
Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner.
Test run the air conditioner after finishing installation, and record details of operation.
Type of fuse used on indoor unit controller for 9K,12K
rating 3.15 A,250V. T,
The fuse for the whole unit is to be provided by the user according to the current at maximum power
input or use other over-current protective device instead.
Accessibility to the plug must be guaranteed even after the installation of the appliance to disconnect
it in case of need. If not possible, connect appliance to a double-pole switching device with contact
separation of at least 3 mm placed in an accessible position even after installation.
The security out static air pressure for our products is 0.8-1.05 * standard pressure.
The biggest length for our connection pipe can be 15m. More 20 g refrigerant is
necessary for per miter if the length is over 7 M. The biggest diversity for altitude
between indoor and outdoor unit is 5m.
Please do not place valuable things under the unit after installation.
18
,18K, 24K with