Samsung RC090DHXEA - Installing DPM

17
ENGLISH
• Connect the indoor and outdoor units using pipes with ared connections (not supplied). For the lines, use insulated,
unwelded, degreased and deoxidized copper pipe, (Cu DHP type to ISO 1337 or UNI EN 12735-1), s uitable for
operating pressures of at least 4200kPa and for a burst pressure of at least 20700kPa. Copper pipe for hydro-sanitary
applications is completely unsuitable.
• For sizing and limits (height dierence, line length, max. bends, refrigerant charge, etc.) see “Connecting refrigerant
pipe section”.
DPM allowable Outdoor unit models Indoor unit models
RC140PHXEA or RC140PHXGA NS0714DXEA x2
RC140DHXEB or RC140DHXGA NS0714DXEA x2
DPM allowable Outdoor and indoor unit models
Space requirements for indoor and outdoor units and piping installation
- Refer to page 14 installation specication.
- Two indoor units should be installed in one area which is not divided by a wall.
- The distance between two indoor units should be within a straight-line of 10m.
- After branching, the distance between the piping connected to the two indoor units should be within 1m.
- The height dierence between two units should be within 0.5m.
- When connecting piping, the Y-joint uses the MXJ-YA1509K material which is commonly used with DVM PLUS III .
(The Y-joint should be installed horizontally and rmly insulated with the provided insulator. – Ceiling leakage protection)
B(liquid)
A(gas)
5. Purge the air from the system using vacuum pump for about 10 minutes.
 Close the valve of the low pressure side of manifold gauge clockwise.
 Make sure that pressure gauge shows -0.1MPa(-76cmHg) after about 10
minutes. This procedure is very important to avoid a gas leak.
 Turn o the vacuum pump.
 Remove the hose of the low pressure side of manifold gauge.
6. Set valve cork of both liquid side and gas side of packed valve to the open
position.
7. Mount the valve stem nuts and the service port cap to the valve, and
tighten them at the torque of 183kgf•cm with a torque wrench.
8. Check for gas leakage.
 At this time, especially check for gas leakage from the 3-way valve’s stem
nuts(A port), and from the service port cap.
Installing DPM
RC＊＊＊DHXEA_IM_E_32793A(5).indd 17 2011-03-09 오후 9:32:36