16
Installation instructions
(7) Turn to fully open the valve
Valve core
Vacuum pump
Service
port
(2) Turn
(8) Tighten
Refrigerant flow direction
3-way valve
Valve cap
(8) Tighten
(7) Turn to fully open the
valve
(1) Turn
2-way valve
(6) Open 1/4 turn
valve cap
(1) Turn
(8) Tighten
Connect to outdoor unit
3-way valve diagram
connect to indoor unit
1. Install Drain Port and Drain Hose (for heat-pump model only)
The condensate drains from the outdoor unit when the unit operates
in heating mode. In order to protect the environment, install a drain
port and a drain hose to direct the condensate water. Just install the
drain port and rubber washer to the chassis of the outdoor unit, then
connect a drain hose to the port as the right figure shown.
2. Install and Fix Outdoor Unit
Fix with bolts and nuts tightly on a flat and strong floor.
If installed on the wall or roof, make sure to fix the supporter well to prevent it
from shaking due to serious vibration or strong wind.
3. Outdoor Unit Piping Connection
Remove the valve caps from the 2-way and 3-way valve.
Connect the pipes to the 2-way and 3-way valves separately according to the required torque.
4. Outdoor Unit Cable Connection (see previous page)
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the
compressor. After connecting the indoor and outdoor units, evacuate air and moisture from refrigerant
cycle using a vacuum pump, as shown below.
Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.
Outdoor unit installation
Air purging
Drain port
Drain hose
(prepared by user)
Washer
service port cap
needle
spindle
open position
Indoor unit