Midea MRC-062HWN1-R, Руководство пользователя

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MCAC-RTT5T-201707 Midea R410A Tropical ClimaCreator Series Rooftop Package 50Hz
76
Blower drive options
Model
Motor Blower
HP rpm
Pulley pitch Dia.
(inch)
Fan speed
range (rpm)
Pulley pitch Dia.
(inch)
Min. Max.
MRC-085HWN1-R(C) 2 1,400 4.53 - 5.25 821 918 8.35
MRC-100HWN1-R(C)
2 1,400 4.53 - 5.25 931 1,016 7.48
MRC-125HWN1-R(C)
4 1,420 4.53 - 5.25 769 871 8.82
MRC-150HWN1-R(C) 5.3 1,440 4.53 - 5.25 949 1,112 7.48
MRC-175HWN1-R(C) 5.3 1,440 4.53 - 5.25 927 1,045 9.84
MRC-200HWN1-R(C) 5.3 1,440 4.53 - 5.25 1,081 1,284 5.91
MRC-250HWN1-R(C) 7.3 1,440 4.53 - 5.25 925 1,088 7.09
MRC-300HWN1-R(C) 7.3 1,440 4.53 - 5.25 1,022 1,195 6.30
E
xample for selection process:
The following data are the rated design points for MRC-085HWN1-R(C) rooftop packages:
Air flow = 3520CFM; External static pressure = 0.3in.w.g; Fan speed = 862rpm;
Power input = 1405W; The No. of turns = 1N.
To increase the ESP (External Static Pressure) to 0.4in.w.g, but maintain the airflow rate at 3500CFM,
please follow the steps below:
Step 1: Selection of new desired point.
From the table data, select the point that can meet both of the requirements.
ESP = 0.4in.w.g;
Air flow rate (Near or equal to)
≈ 3500CFM.
Step 2: Read fan speed, power input:
Air flow = 3483CFM;
Fan speed = 896rpm;
Power input = 1400W.
Step 3: Read number of turns for variable pitch pulley.