Technical data
90
CTC EcoZenith i250 
Installation CTC EcoAir 520M
Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_
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Settings Heat pump
Compressor: Permitted
Min outtemp °C    -15
Tariff VP    Off
Cold temp limit    0
Max RPS    90
Warm temp limit    20
Max RPS warm temp    50
>>
Heat pump
Compressor  On 65 rps
Charge pump  On 47%
Fan On
HP in/out°C  35.5 / 42.3
Current L1  4.0
Settings Heat pump
<<
Max RPS silent mode    50
Silent mode
HS<>DHW time (sek)    120
Charge pump    50
Auto adj. charge pump
Set. Silent mode
Inst. Ljudreducering
Silent mode  Off
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Silent mode  On  Active
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Förslag Inst. Värmepump
Förslag Inst. Värmepump
Förslag Inst. Värmepump
Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_Inverter_
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      00-06 22-24
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      00-06 22-24
      00-06 22-24
      00-06 22-24
      00-06 22-24
      00-06 23-24
      00-08 23-24
      00-08 22-24
Settings Heat pump
Compressor: Permitted
Min outtemp °C    -15
Tariff VP    Off
Cold temp limit    0
Max RPS    90
Warm temp limit    20
Max RPS warm temp    50
>>
Heat pump
Compressor  On 65 rps
Charge pump  On 47%
Fan On
HP in/out°C  35.5 / 42.3
Current L1  4.0
Settings Heat pump
<<
Max RPS silent mode    50
Silent mode
HS<>DHW time (sek)    120
Charge pump    50
Auto adj. charge pump
Set. Silent mode
Inst. Ljudreducering
Silent mode  Off
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Silent mode  On  Active
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Förslag Inst. Värmepump
Förslag Inst. Värmepump
Förslag Inst. Värmepump
Factory setting for noise reduction. 
Noise reduction has NOT been activated (OFF)
e.g. where Noise reduction has been activated 
(On) and noise reduction is currently in 
progress (On – Active) 
15.1.4  Set Schedule Noise reduction
Noise reduction  On/Off
Shows whether noise reduction is active (ON) or not (OFF)
The example shows that noise reduction is on:
From Monday 22:00 until Tuesday 06:00
“Active” means that the noise is currently being 
limited; if factory settings are used this means that the 
compressor speed may not exceed 50rps. 
The CTC EcoZenith i250 is supplied with suitable factory settings for the CTC EcoAir 520M. 
Enertech AB recommend these for optimal operating economy.










