Adjust amount. for variation in line set length listed on line set length table below.
3. Determine if fan needs adjustment

CHECKING AIR FLOW AT INDOOR COIL

Check airflow using the Delta−T (DT) process using the illustration in figure 17.

Temp. of air entering indoor coil ºF

A

Dry−bulb

DT

80

24

24

24

23

23

22

22

22

20

19

18

17

16

15

78

23

23

23

22

22

21

21

20

19

18

17

16

15

14

76

22

22

22

21

21

20

19

19

18

17

16

15

14

13

74

21

21

21

20

19

19

18

17

16

16

15

14

13

12

72

20

20

19

18

17

17

16

15

15

14

13

12

11

10

70

19

19

18

18

17

17

16

15

15

14

13

12

11

10

1. Determine the desired DT

ature using dry bulb (A) and wet bulb (B). DT is the intersect- ing value of A and B in the table (see triangle).

2. Find temperature drop across coil

bulb entering and leaving air temperatures (A and C). Tem- perature Drop Formula: (TDrop) = A minus C.

Wet−bulb ºF 57 58 59 60 61 62 63 64 65 66 67 68 69 70

ference between

 

 

B

 

C

TDrop

 

 

 

 

 

53º

19º

 

 

 

 

 

 

air flow

air flow

B

DRY

 

 

64º

BULB

 

 

 

All temperatures are

INDOOR

 

COIL

 

expressed in ºF

 

 

 

A

72º

DRY

BULB

WET

BULB

the measured TDrop and the desired DT (TDrop–DT) is within +3º, no adjustment is needed. See examples: Assume DT =

15 and A temp. = 72º, these C temperatures would necessi- tate stated actions:

Cº

TDrop

–

DT

=

ºF

ACTION

53º

19

–

15

=

4

Increase the airflow

58º

14

–

15

=

−1

(within +3º range) no change

62º

10

–

15

=

−5

Decrease the airflow

4.Adjust the fan speed crease/decrease fan speed.

Changing air flow affects all temperatures; recheck tempera- tures to confirm that the temperature drop and DT are within +3º.

Figure 17. Checking Indoor Airflow over Evaporator Coil using Delta−T Chart

WEIGH IN CHARGING METHOD

64ºF (17.7ºC) and Below

CALCULATING SYSTEM CHARGE FOR OUTDOOR UNIT VOID OF CHARGE

If the system is void of refrigerant, first, locate and repair any leaks and then weigh in the refrigerant charge into the unit. To calculate the total refrigerant charge:

Amount specified on nameplate

Total charge

 

 

 

+

 

 

=

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigerant Charge per Line Set Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liquid Line

Ounces per 5 feet (g per 1.5 m)

 

 

 

 

 

adjust from 15 feet (4.6 m) line set*

 

 

 

 

 

Set Diameter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3/8" (9.5 mm)

3 ounce per 5’ (85 g per 1.5 m)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*If line length is greater than 15 ft. (4.6 m), add this amount. If

 

 

 

line length is less than 15 ft. (4.6 m), subtract this amount.

NOTE

Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the

temperature of the liquid line or when pressure drop is equal to or greater than 20 psig.

NOTE

The above nameplate is for illustration purposes only. Go to actual nameplate on outdoor unit for charge information.

Figure 18. Using HFC−410A Weigh In Method

Page 23

XC16 SERIES

Page 22 Page 24
Page 23
Image 23
Lenox Elite Series X16 Air Conditioner Units, 506637-01 Checking AIR Flow AT Indoor Coil, Weigh in Charging Method
Page 22 Page 24

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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