Fisher FSAIF-Pro-93AE2 Service Manual page 39

8.4.3 Heating Mode
8.4.3.1 Compressor running rules
The maximum operation frequency of the compressor after starting submits to the following rule.
T4
34
33
28
27
25
24
22
21
19
18
17
16
15
14
12
11
6
5
1
0
-3
-4
-7
-8
Fmax=F23
-11
-12
Fmax=F24
-15
-16
Fmax=F25
Off
Fmax=T4FREHEATMAX1
Fmax=T4FREHEATMAX2
Fmax=T4FREHEATMAX3
Fmax=T4FREHEATMAX4
Fmax=T4FREHEATMAX5
Fmax=T4FREHEATMAX6
Fmax=T4FREHEATMAX7
Fmax=T4FREHEATMAX8
Fmax=T4FREHEATMAX9
Fmax=F21
Fmax=F22
39