INSTALLING OF THE OUTDOOR UNIT
•See the “Determination of Installing Position”.
Connecting of Tubing
Diagram 1 |
Discharge |
1.Cutting and flaring of tubing:
A. Cut the tubing on its straight part with the pipe cutter.
B. Remove burrs from cut edges of pipes, which may cause a gas leak.
C. Flaring of the pipe is done with the flaring tool.
NOTE: Do not forget to in- stall the flare nut before flaring
2.Pre-Connecting:
Screw the tubing turning 3 to 5 times until hand tight.
3.Fastening:
Fasten the connection.
Cut pipe by rotating the pipe cutter
Pipe
Turn the handle Clockwise while pushing it against the pipe
Pipe cutter knife
Do not dam- age the in- side of the pipe.
Fix pipe
turning clampYoke handle.
Flare nut Bar
Pipe
•Apply refrigeration oil to the flare surface to pre- vent gas leakage.
INDOOR UNIT | Suction | OUTDOOR UNIT |
| |
|
|
| ||
| Flare nut | Flare valve |
| Manifold gauges Charge |
|
|
|
| cylinder |
(SINGLE ZONE SYSTEM SHOWN) | Vacuum pump | |||
Leak Test
Leak Check
Check the joints with a gas leak detector or soapy water for refrigerant leaks. If a leak is found, repair and recheck.
Drainage
Indoor Unit
After the indoor unit(s) have been installed, make sure that condensed water is properly drained. (If this is neglected, the unit(s) may become flooded.)
Special care should be given to the following details:
• Drain hose must | • Do not use a trap | • Never put the | • Do not tilt up- |
slope downward | or kink. | end of the drain | ward. |
to the outdoor |
| hose into the |
|
side. |
| water. |
|
Air Purge and Charging
! CAUTION !
1)Remove the cap from the service port on the suction line service valve.
2)Connect the suction side of the refrigerant gauge manifold to the Suction Line service valve. Connect the center hose of the refrigerant manifold gauge to the micron gauge. Connect the other side of the micron gauge to the vacuum pump. (Diagram 1)
3)Open the suction side of the refrigerant manifold set and turn the vacuum pump on. NOTE: Evacuate the system down to 400 microns.
4)When the system pulls down to 400 microns turn the vacuum pump off. Observe the micron gauge: if the system has a leak the gauge will detect it. If there is a leak, find it, repair it, and repeat steps 3 and 4.
5)Close the refrigerant gauge manifold valve and disconnect the vacuum pump from the system.
6)Remove the Suction and Liquid line Service Valve Caps from the valves.
7)Using an Allen wrench, open the Liquid Line Service Valve until the valve is in the fully open position. Next do the same for the Suction Line Service valve. NOTE: Be careful as not to completely remove the valve core from the valve. This will result in the release of refrigerant from the system into the atmosphere!
8)
Outdoor Unit (Heat Pump Only)
NOTE: Allow clearance for drainage of water or condensate. For outdoor condensation:
•The outdoor unit has drain outlets on the base to drain condensation to the outside.
•To drain condensation by hose (5/8” hose) with the drain socket, connect the socket to the center of the base and cover all other outlets with base caps.
•Install the outdoor unit on a flat level surface and make sure condensation drains smoothly.
•In cold areas, condensation
and defrost water can freeze, therefore do not use the drain outlet caps during the cold sea- son.
•Electrical connection should only be made by a qualified pro-
fessional.
ECR International | 13 | Hyundai Ductless Split System |
