Operation Manual

6. PERFORMANCE DATA

Interpolation and Extrapolation method can be used to get the total capacity, Q and sensible capacity, SC at

those temperatures which are not stated out in the table.

Example:

Model: ACM 15E / ALC 15C

Indoor Condition: 23°C DB, 15°C WB

Outdoor Condition: 37°C DB

Solution:

Overall

Based on the Performance table in page 67,

1. Refer to the Indoor DB column,

- 23°C is located between 20°C and 24°C (Thus, Interpolation need to be applied)

2. Refer to the Indoor WB column,

- 15°C only available in the case of Indoor DB = 20°C. (Thus, Extrapolation between 16°C WB

and 17°C WB during 24°C indoor DB is required)

3. Refer to the Outdoor DB column,

- 37°C is located between 35°C and 40°C. (Thus, Interpolation need to be applied)

Please follow the steps below in order to get the required capacity.

Step

Extrapolation of Indoor WB

Find TC, SC for

(a) Indoor : 24°C DB, 15°C WB

Outdoor : 35°C DB

(b) Indoor : 24°C DB, 15°C WB

Outdoor : 40°C DB

Step

Interpolation of Indoor DB

Find TC, SC for

(a) Indoor : 23°C DB, 15°C WB

Outdoor : 35°C DB

(b) Indoor : 23°C DB, 15°C WB

Outdoor : 40°C DB

Step

Interpolation of Outdoor DB

Find TC, SC for

(a) Indoor : 23°C DB, 15°C WB

Outdoor : 37°C DB