SAS EDHP2209L, Инструкция по эксплуатации

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4.Connecting pipe installation
14
Service entrance
Valve rod
Valve deck
4-12 Stop valve instructions
1) It is at its closed state when delivered;
2) Use a 6mm socket head wrench to open or close the valve, turn counterclockwise to open
it, and clockwise to close it;
3) After the operation is finished, the valve cover must be tightened;
4) In time of vacuum pumping and refrigerant filling through the service entrance, the R410A
special tool must be used. Fill in refrigerant through service entrance to the gas side valve, and
carry out vacuum pumping simultaneously at the liquid and gas side valves.
Vacuum pumping here
Refrigerant filling here
4-13 Piping insulation treatment
1) Apply insulation treatment to the gas and liquid side piping respectively;
2) Use obturator heat insulating materials, with the flame retardant grade of B1 and high temperature
resistance of 120
℃
;
3) When the copper pipe diameter ≤
Φ
12.7, the cotton insulation thickness shall be no less than 15mm;
the copper pipe diameter ≥
Φ
15.88, the cotton insulation thickness shall be no less than 20mm.
4) The indoor unit nut joints must accept heat insulation treatment.
Opening direction
Opening direction
(Liquid side)
(Gas side)
V.1