Carrier 42HVM109303 Service Manual page 33

Auto fan running rules:
For MS11M-09HRFN1-MW0W, MS11M-12HRFN1-MV0W, MS11M-18HRFN1-MU0W models:
For MS11M-24HRFN1-MT0W model:
8.4.2.4 Condenser temperature protection
℃ ℃
---55 <T3<60 , the compressor frequency will decreas
℃
at F1.If T3<54 , the compressor will keep running at the current frequency.
℃
---T3<52 , the compressor will not limit the frequency and resume to the former frequency.
℃
---T3>60 for 5 seconds, the compressor wi
8.4.2.5 Evaporator temperature protection
T 1-Ts
6.0
a
5.0
b
4.0
c
2.5
d
1.0
28
27
25.5
25
ll stop until T3<52 .
H
(H-L )*0.75+L
(H-L )*0.5 +L
(H-L )*0.25+L
L
e
High
Medium
Low
e to the lower level until to F1 and then runs
℃
33