Drier Installation; Operation Method Of Stop Valves - Daikin LRYEQ16AY1 Service Manual

Test Operation

5.3.3 Drier Installation

Caution This product requires that a drier be installed on liquid piping on site.
(Operating the unit without a drier installed may result in equipment failure.)
Select a drier from the following chart:
LRYEQ16AY1

5.3.4 Operation Method of Stop Valves

Follow the instructions below when operating each stop valve.
Caution
〈Tightening torque〉
Check with the following table the sizes of stop valves incorporated by each model and the
tightening torque values of the respective stop valves.
Stop valve sizes
Liquid side stop valve
Gas side stop valve
59
Model
Connect the drier to liquid pipe on the refrigeration side.
Install the drier in a horizontal orientation wherever possible.
Install the drier as close to the outdoor unit as possible.
Remove the drier cap immediately before brazing (to prevent absorption of airborne
moisture).
Follow instructions in the drier instruction manual concerning drier brazing.
Repair any burning of drier paint that occurs during drier brazing. Contact the manufacturer
for more information about paint for repair use.
Flow direction is specified for some type of the dryer.
Set the flow direction according to the operation manual of the dryer. (Liquid refrigerant flows
from the outdoor unit to the indoor unit.)
Do not open the stop valve until the steps specified in "Checking of Device and
Installation Conditions" is completed.
Do not leave the stop valve opened without turning the power ON, otherwise refrigerant may
be condensed in the compressor and the insulation of the main power supply circuit may be
degraded.
Be sure to use an exclusive tool to handle the stop valve. The stop valve is not of back sheet
type. Excessive force imposed may break the valve.
Use a charge hose when using the service port.
Make sure that there is no refrigerant gas leakage after the valve cover and cap are securely
tightened.
Sealing part
Required dryer core
(recommended type)
160g (100% molecular sieve equivalent)
(DML164/DML164S : Danfoss made)
φ9.5
φ25.4
Service port
Valve cover
Hexagon hole
Shaft
SiBE811001EB
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