Electra WNG 50 DCI Service Manual page 39

CONTROL SYSTEM
Target Frequency Setting
11.3.2
The compressor target frequency is a function of the NLOAD number sent from
the indoor controller and the outdoor air temperature.
Basic Target Frequency Setting:
NLOAD
127
10 < NLOAD < 127
10
0
Target frequency limits as a function of outdoor air temperature (OAT):
OAT Range
OAT < 6
6 ” OAT < 15
15 ” OAT < 24
24 ” OAT
Frequency Changes Control
11.3.3
Frequency change rate is 1 Hz/sec.
Compressor Starting Control
11.3.4
Frequency
Step 3
Step 2
Step 1
Minimum On and Off Time
11.3.5
3 minutes
11-2
Target Frequency
Maximum frequency
Interpolated value between minimum and maximum frequency
Minimum frequency
Compressor is stopped
Cool mode limits
MaxFreqAsOATC
No limit
1
Minute
1
Minute
Min 10 Minutes
Revision Y05-02
CONTENT
Heat mode limits
No limit
MaxFreqAsOAT1H
MaxFreqAsOAT2H
Time
Service Manual - WNG 50_60_80 DCI