CARDBOARD OR
PLASTIC SHEETS

65ºF

START: Measure outdoor ambient temperature

and

ABOVE

USEDO NOTWEIGHCHARGE-IN M THODUNIT

Weigh(Results-in orofremovechargingrefrigerantat low

ABOVE or

BELOW

bas d upon line length

temperatures not reliable)

64ºF and

 

 

BELOW

APPROACH TXV

If refrigerant is added or removed, retest to confirm that unit is properly charged.

1.Connect gauge set as illustrated in figure 15.

2.Confirm proper airflow across coil using figure 17.

3.Compare unit pressures with table 4, Normal Operating Pressures.

4.Set thermostat to call for heat (must have a cooling load between 70-80ºF (21−26ºC).

5.When heat demand is satisfied, set thermostat to call for cooling.

6.Allow temperatures and pressures to stabilize.

7.Record outdoor ambient temperature: AMBº =_________

8.Record liquid line temperature: LIQº = __________

9.Subtract to determine approach (APPº): LIQº_____ − AMBº _____ = APPº_____

10.Compare results with table below.

APPº (Approach) Values(F:+/−1.0° [C: +/−0.6°])

If value is greater than shown (high approach), add refrigerant; if less than shown (liquid temperature too close to ambient temperature, low approach), remove refrigerant.

 

 

Models

 

 

 

ºF (ºC)*

−024

−036

−048

−060

 

Any

6 (3.3)

6 (3.3)

8 (4.4)

4 (2.2)

*Temperature of air entering outdoor coil

Figure 19. Using HFC−410A Approach (TXV) Charge Method

65ºF

START: Measure outdoor ambient temperature and

ABOVE

USE WEIGH-IN METHOD

 

DO NOT CHARGE UNIT

ABOVE or

Weigh-in or remove refrigerant

(Results of charging at low

BELOW

based upon line length

temperatures not reliable)

64ºF and

 

 

BELOW

C SUBCOOLING TXV

BLOCK OUTDOOR COIL: [sometimes necessary with lower temperatures] Use cardboard or plastic sheet to restrict the airflow through the outdoor coil to achieve pressures from 325−375 psig (2240−2585 kPa). Higher pressures are needed to check charge. Block equal sections of air intake panels and move coverings sideways until the liquid pressure is in the above noted ranges.

1.Connect gauge set as illustrated in figure 15.

2.Confirm proper airflow across coil using figure 17.

3.Compare unit pressures with table 4, Normal Operating Pressures.

4.Set thermostat to call for heat (must have a cooling load between 70-80ºF (21−26ºC)

5.Measure outdoor ambient temperature

6.When heat demand is satisfied, set thermostat to call for cooling

7.Allow temperatures and pressures to stabilize.

NOTE − If necessary, block outdoor coil to maintain 325 − 375 psig.

8.Record liquid line temperature: LIQº = ______

9.Measure liquid line pressure and use the value to determine saturation temperature (see table 3):

SATº = ______

10.Subtract to determine subcooling (SCº):

 

If refrigerant is

 

If value is

 

added or removed,

 

 

 

MORE than

 

verify charge using

 

 

 

shown, remove

 

the Approach

 

 

 

refrigerant.

 

Method.

 

 

 

 

 

 

 

 

 

If value is LESS

 

MORE or

 

than shown, add

 

 

 

LESS

 

refrigerant.

 

 

 

 

 

 

 

 

SATº_____ − LIQº _____ = SCº _____

11. Compare results with table below.

SCº (Subcooling) Values (F:+/−1.0° [C: +/−0.6°])

 

 

Models

 

 

 

ºF (ºC)*

−024

−036

−048

−060

 

Any

5 (2.7)

6 (3.3)

6 (3.3)

9 (5.0)

*Temperature of air entering outdoor coil

Figure 20. Using HFC−410A Subcooling (TXV) Charge Method

Page 24

506637−01 11/10

Page 23 Page 25
Page 24
Image 24
Lenox 506637-01, Elite Series X16 Air Conditioner Units installation instructions Above, Below
Page 23 Page 25

Elite Series X16 Air Conditioner Units, 506637-01 specifications

The Lenox 506637-01, Elite Series X16 Air Conditioner is a top-tier cooling solution that stands out in the residential HVAC market. Known for its impressive energy efficiency and advanced features, this unit is designed to provide homeowners with exceptional comfort while also keeping energy bills in check.

One of the main highlights of the Elite Series X16 is its SEER rating, which stands at an impressive 16. This makes it one of the most energy-efficient air conditioning systems available, ensuring that it operates effectively without consuming excessive power. By converting less energy into cooling, homeowners can enjoy lower utility bills and a reduced carbon footprint.

The X16 model features a two-stage cooling system, which allows for better humidity control and more even temperature distribution throughout the home. Unlike standard single-stage units that operate at full capacity at all times, the two-stage system enables the air conditioner to run at a lower, more efficient speed for the majority of its operation, only ramping up when additional cooling is needed. This not only enhances comfort but also extends the lifespan of the unit.

Incorporating advanced technology, the Elite Series X16 utilizes a high-efficiency scroll compressor and innovative airflow design. This results in quieter operation, providing a peaceful indoor environment. The noise levels are minimal, making it suitable for nighttime use or for homes where noise might be a concern.

The air conditioner is built with durability in mind, featuring a robust cabinet that protects against the elements and potential wear and tear over time. Its louvered design provides additional protection for critical components, ensuring longevity and consistent performance.

Furthermore, the X16 is compatible with smart thermostats and home automation systems, allowing homeowners to optimize their cooling schedules remotely. This connectivity helps users make informed decisions about energy usage, further enhancing efficiency while providing ultimate control over home comfort.

In summary, the Lenox 506637-01, Elite Series X16 Air Conditioner provides an excellent blend of energy efficiency, advanced technology, and a focus on comfort and durability. With its two-stage cooling system, high SEER rating, and quiet operation, it is an ideal choice for those seeking a reliable, high-performance cooling solution for their homes.
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