Trane NTXWPH A Series Service Manual page 66

13. 12-class unit in single operation
(OUTDOOR UNIT: NTXMMX42A152AA NTXMPH20A122AA NTXMPH24A132AA NTXMPH30A132AA)
(1) COOL operation
Data is based on the condition of indoor
humidity 50%
Air flow speed: High
Inverter output frequency: 18 Hz
(PSIG)
170
160
150
140
130
120
65 70 75 80 85 90 95 100 105 110 115
Ambient temperature (˚F)
(2) HEAT operation
Data is based on the condition of outdoor
humidity 75%.
Set air flow to High speed.
Inverter output frequency is 20 Hz.
OBHT702
<How to work fixed-frequency operation>
1. Set emergency switch to COOL or HEAT. The switch is located
on indoor unit.
2. Press emergency run ON/OFF button.
3. Compressor starts running at 18 Hz (COOL) or 20 Hz (HEAT).
4. Indoor fan runs at High speed and continues for 30 minutes.
5. To cancel this operation, press emergency run ON/OFF button
or any button on remote controller.
6.0
86
5.0
80
4.0
3.0
75
2.0
70
1.0
18 Hz
0.0
(˚F)
65 70 75 80 85 90 95 100 105 110 115
7.0
6.0
5.0
4.0
3.0
2.0
15 20 25 30 35 40 45 50 55 60 65 70 75
66
18 Hz
Ambient temperature (˚F)
20 Hz
Ambient temperature (˚F)
86
80
75
70
(˚F)
75
70
65
(˚F)