
Modular Hi-Rise Replacement Series – MIY
INSTALLATION, OPERATION, & MAINTENANCE MANUAL
18
SECTION FOUR — Start-Up, Cont’d.
Motor Control Voltage – 3-Speed Relay Board – Factory Settings
NOTES: 1. The above default settings are pre-programmed by the Factory for each cited application to ensure proper operation and
adherence to published values.
2. Each fan speed setting must NOT be reduced further than your application’s cited :Low” value; otherwise the electric heater
will not maintain sufficient airflow. This can result in frequent nuisance tripping of the thermal cut-out protection, which
temporarily disables the electric heater.
3. Increasing voltage settings beyond the cited application values will typically result in higher sound power values than what are
published by the manufacturer.
4. Pleasae contact the Factory for special CFM or external static pressure applications.
Unit
Model
# of
Coil
Rows
Unit Voltage
Pot Board Settings – VDC
Values @ 0” ESP
CFM Values @ 0” ESP
High
Medium
Low
High
Medium
Low
MIY04
3
120V/1/60
6.37
5.29
3.65
386
303
203
MIY04
4
120V/1/60
6.28
5.21
3.63
380
301
202
MIY04
5
120V/1/60
6.28
5.21
3.63
374
297
199
MIY04
3
208V/1/60
7.23
5.85
4.14
384
302
201
MIY04
4
208V/1/60
7.12
5.82
4.20
375
297
200
MIY04
5
208V/1/60
7.41
6.00
4.20
378
300
198
MIY04
3
240V/1/60
6.85
5.59
4.14
387
303
210
MIY04
4
240V/1/60
6.89
5.67
4.13
379
302
203
MIY04
5
240V/1/60
7.04
5.80
4.25
384
307
208
MIY04
3
277V/1/60
7.15
5.82
4.14
389
309
203
MIY04
4
277V/1/60
7.04
5.78
4.22
377
300
207
MIY04
5
277V/1/60
7.05
5.85
4.25
380
303
205
Figure 11. 3-Speed Relay Board