3DJH
31-5000750 Rev. 1
Figure 28. Demand Defrost Cycle – Sequence of Operation
START DEFROST
STATE
ACCUMULATE FROST
ACCUMULATION TIME – HP RUN
TIME IF COIL TEMP BELOW 35°F
IF DEFROST CYCLE TIME IS
CLOSE TO TARGET DEFROST
CYCLE TIME (BETWEEN
80% - 120% TARGET DEFROST
CYCLE TIME) – NO CHANGE IN
FROST ACCUMULATION TIME
INITIATE DEFROST CYCLE IF
FROST ACCUMULATION TIME
EXCEEDS TARGET FROST
ACCUMULATION
TIME (INITIALLY 90 MIN.)
IF DEFROST CYCLE TIME IS
SHORT (80% OR LESS OF
TARGET DEFROST CYCLE TIME)
– FROST ACCUMULATION TIME
INCREASED BY 30 MIN.
DEFROST CYCLE WILL RUN AND
THE TIME IS COMPARED TO
TARGET DEFROST CYCLE TIME
(100S/133S/105S/102S)
DEFROST CYCLE TIME WILL BE
MEASURED UNTIL COIL TEMP
REACHES 50°F
DEFROST WILL TERMINATE
WHEN COIL TEMP REACHES
TERMINATION TEMP
RETURN TO HP HEATING
AND RESET RUN TIMER
IF DEFROST CYCLE TIME IS
LONG (120% OR MORE OF
TARGET DEFROST CYCLE TIME)
– FROST ACCUMULATION TIME
DECREASED BY 30 MIN.
IF DEFROST CYCLE TIME IS
SIGNIFICANTLY LONGER (200%
OR MORE OF TARGET
DEFROST CYCLE TIME)
OR TERMINATES AT 14m MAX
TIME – FROST ACCUMULATION
TIME IS SET TO 30 MIN.
Содержание GE NS22HM
Страница 7: ...3DJH 31 5000750 Rev 1 Figure 2 Component Locations NS22H24MA4 and NS22H36MA4...
Страница 8: ...3DJH 31 5000750 Rev 1 Figure 3 Component Locations NS22H48MA4 and NS22H60MA4 Scroll Compressor Models...
Страница 58: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 24 Wiring Diagram Unit Wiring Diagram...
Страница 78: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 45 VAC Voltage Check...
Страница 103: ...3DJH 31 5000750 Rev 1 Figure 54 NS22H24M NS22H36M Charging Label...
Страница 104: ...3DJH 31 5000750 Rev 1 Figure 55 NS22H48M NS22H60M Charging Label...
Страница 105: ...3DJH 31 5000750 Rev 1 Notes...
