Performance Data; Calculation Steps - McQuay MWM09J Manual

Performance Data

Performance Data

Calculation Steps

Interpolation method can be used to get the total capacity, TC and sensible capacity, SC and power input, PI
at those temperatures which are not stated out in the table. Extrapolation method are not allowed to be used
to get the TC, SC and PI
Example:
Model: MWM09J - MLC09C
Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 37°C DB
Fan speed: High
Solution:
Overall
Based on the Performance table:
1. Refer to the Indoor DB column,
- 25°C is located between 24°C and 27°C for 16oCWB (Thus, Interpolation need to be applied)
- 25°C is located between 24°C and 27°C for 19oCWB (Thus, Interpolation need to be applied)
2. Refer to the Indoor WB column,
- 17°C is located between 16°CWB and 19°CWB for 25oCDB (Thus, Interpolation need to be applied)
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.
1 Step
st
Extrapolation of Indoor WB
Find TC, SC, PI for
(a) Indoor: 25°C DB, 16°C WB
Outdoor: 35°C DB
(b) Indoor: 25°C DB, 19°C WB
Outdoor: 35°C DB
(c) Indoor: 25°C DB, 16°C WB
Outdoor: 40°C DB
(d) Indoor: 25°C DB, 19°C WB
Outdoor: 40°C DB
27
2 Step
nd
Interpolation of Indoor DB
Find TC, SC, PI for
(a) Indoor: 25°C DB, 17°C WB
Outdoor: 35°C DB
(b) Indoor: 25°C DB, 17°C WB
Outdoor: 40°C DB
MWM-J_(ii)
3 Step
rd
Interpolation of Outdoor DB
Find TC, SC, PI for
(a) Indoor: 25°C DB, 17°C WB
Outdoor: 37°C DB