Carrier 50JS Specifications download pdf (Page 18)

LEGEND

HPS - High Pressure Switch

LCS - Loss of Charge Switch

_ Accuratel = Metering Device

] Arrow indicates direction of flow

OUTDOOR COIL

LI ¸

Me_n_

tcs

Fig. 22--Typical Heat Pump Operation, Heating Mode

LEGEND

HPS - High Pressure Switch

LCS - Loss of Charge Switch

_ Accuratef' Metedng Device

] Arrow indicates direction of flow

OUTDOOR COqL

Bypass

Position

LC$

INDOOR COIL

C00095

C00096

Fig. 23--Typical Heat Pump Operation, Cooling Mode

and unit operates in Heating mode when temperature control

is set to "call for Heating "_(above room temperature).

IMPORTANT: Three-phase. scroll compressors are direction ori-

ented. Unit must be checked to ensure proper compressor 3-phase

power lead orientation. If not corrected within 5 minute, the

internal protector will shut off the compressor. The 3-phase power

leads to the unit must be reversed to correct rotation. When turning

backwards, scroll compressors emit elevated noise levels, and the

difference between compressor suction and discharge pressures

may be dramatically lower than normal.

CHECKING AND ADJUSTING REFRIGERANT CHARGE

The refrigerant system is fully charged with R-22 refrigerant and

is tested and factory sealed. Allow system to operate a minimum

of 15 minutes before checking or adjusting charge.

NOTE: Adjustment of the refrigerant charge is not required

unless the unit is suspected of not having the proper R-22 charge.

The charging label and the tables shown refer to system tempera-

tures and pressures in cooling mode only. A refrigerant charging

label is attached to the outside of the service access door. If charge

level is suspect in Heating mode, reclaim all refrigerant and charge

to nameplate amount. (This information may be obtained from the

physical data table also.)

IMPORTANT: When evaluating the refrigerant charge, an indi-

cated adjustment to the specified factory charge must always be

very minimal. If a substantial adjustment is indicated, an abnormal

condition exists somewhere in the cooling system, such as insuf-

ficient airflow across either coil or both coils.

REFRIGERANT CHARGE

The amount of refrigerant charge is listed on the unit nameplate

and/or the physical data table. Refer to the Refrigeration Service

Techniques Manual, Refrigerants Section.

NO CHARGE

Check for leak. Use standard evacuating techniques. After evacu-

ating system to 500 microns, weigh in the specified amount of

refrigerant (refer to system data plate).

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 31 32

Comments to this Manuals

No comments

Carrier 50JS Specifications Page 18

Comments to this Manuals

Related products and manuals for Heat pumps Carrier 50JS