Pump Down And Check The Refrigerant Charge; Accessories - Carrier 38TYG H7 Serie Manual De Instalación

38TYG---H7/38TYG---H9
38TYP---H7/38TYP---H9

Pump Down and check the refrigerant charge

Pump-down
Pump-down is an operation intended to collect all the system
refrigerant in the outdoor unit.
This operation must be carried out before disconnecting the
refrigerant tubing in order to avoid refrigerant loss to the
atmosphere, if it becomes necessary to disconnect the refrigerant
connections for unit repair, removal or disposal; in this case, after
removal, unit must be delivered to an appropriate disposal centre
or the original dealer.
Shut off the liquid valve with the Allen wrench. Turn the system
on in cooling with fan operating at high velocity. (Compressor will
immediately start, provided 3 minutes have elapsed since the last stop).
After 2 minutes of operation, shut the suction valve with the same
wrench. Turn the system off and switch mains supply off. Disconnect
tubing. After disconnection, protect valves and tubing ends from dust.
Compressor damage may occur if run at a negative suction pressure.

Accessories

1. Acustic confort kit
With this kit mounted on fan outlet noise could be reduced by up to 5 db(A).
Part No. 51604548300
2. Condensate Pump
Has the ability to draw water out of outdoor unit at max flow rate of
20 L/h to a distance of up to 5m.
Part No. 51310007100
3. Outlet grille
Blocks objects from entering into fan housing.
Part No. 51608625600 -38TYP/ 38TYG-085-100H
Part No. 51608625800 -38TYP/ 38TYG-050-075-120-140H
GB-25
Check the refrigerant charge
• This check becomes necessary after any refrigerant leak due to
incorrect connection, or after replacement of the compressor.
• The best method to correctly charge refrigerant is to completely
empty the refrigerant circuit using refrigerant recovery equipment.
Then charge the exact quantity of refrigerant according to the data
shown on the unit nameplate.
This can be done with charging equipment of the "Dial a charge" type.
• R-410A refrigerant cylinders contain a dip tube which allows
liquid refrigerant to flow from the cylinder in an upright position.
Charge R-410A units with cylinder in upright position and a
commercial-type metering device in manifold hose in order to
vaporize the liquid refrigerant before it enters in the unit.
Charge refrigerant into suction-line.