Hitachi RAS-NP10CTS, Инструкции по установке, эксплуатации и обслуживанию

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15
Longer than "L"
Longer than "1/2L"
Downward Pitc
h
Horizontal or Pitched Down
Water Seal Trap
Condensate Drain Connection
Cooling Unit
Auxiliary Drain Pan
(Field-Supplied)
Cooling Unit
To the Atmosphere
Cooling Unit
Insulation
*Refrigerant Pipe Insulation
*Refrigerant Pipe
Cooling Unit
Connection Insulation
Condensate Drain
*Drain Pipe Insulation
Refrigerant Pipe
Duct Flange
*Duct Insulation
*Condensate Drain Pipe
Cooling Unit
*Duct
Insulation
CONDENSATE DRAIN PIPING
Condensate Drain Piping
Tools and Instruments - General Piping Tools
Trap - A female piping thread screw connection is provided. Dimension “L” in Fig. 7. should be
sufficiently longer than the negative fan pressure at the drain connection (50 mm to 100 mm depends on
the return air duct design). Always fill the trap with water.
Fig. 7. Condensate Drain Connection
NOTE;
When the relative humidity of inlet air or ambient air exceeds 80
％
, apply an auxiliary drain pan
(field-supplied) beneath the cooling unit as shown in Fig. 7.
Field Insulation
Insulate the duct flange, the refrigerant piping connection and the condensate drain connection
adequately, as shown in Fig. 8.
* : Field-Supplied
Fig. 8. Field Insulation