Operational Temperature Range - Toshiba MMU-AP0072H2UL Engineering Data Book

2
Equipment selection procedure

2-4. Operational temperature range

2-4-1. Heat recovery
110
100
90
80
70
60
50
40
30
20
14
10
50
Indoor air wet bulb temp. (°F)
The cooling performance may decline
considerably when total operating capacity
of cooling indoor units is less than 38 kBtu/h
while ambient temperature is below 32 °F.
2-4-2. Heat pump
115
110
100
90
80
70
60
50
40
30
23
20
50
Indoor air wet bulb temp. (°F)
Cooling
Continuously
operable
range
60 70 80 82
Cooling
Continuously
operable
range
60 70 80 82
70
60
50
40
30
20
10
0
-4
-10
90 40
Indoor air dry bulb temp. (°F)
Avoid the following place
Places where ambient temperature falls
below 5 °F for more than 72 hours running.
The outdoor heat exchanger may be
damaged by the frost.
70
60
50
40
30
20
10
0
-4
-10
90 40
Indoor air dry bulb temp. (°F)
Avoid the following place
Places where ambient temperature falls
below 5 °F for more than 72 hours running.
The outdoor heat exchanger may be
damaged by the frost.
22
Heating
Continuously
operable
range
50 60 70 80
Heating
Continuously
operable
range
50 60 70 80
90
90