3DJH
31-5000750 Rev. 1
Figure 27. High Pressure Switch (S4) Sequence of Operation (All Versions)
Y1 DEMAND
OR COOLING
DEMAND
HIGH
PRESSURE
SWITCH (S4)
CONTACTOR
ENERGIZED
HIGH
PRESSURE
SWITCH (S4)
CONTACTOR
DE-ENERGIZED
ANTI-SHORT
CYCLE TIMER
BEGINS
INCREMENT
5-STRIKE
COUNTER
1
LED ALERT
CODE / OR
MODERATE
ALERT 412
DISPLAYED
ANTI-SHORT
CYCLE TIMER
ENDS
HIGH
PRESSURE
SWITCH (S4)
WAITING FOR
PRESSURE
SWITCH TO
CLOSE
5-STRIKE
COUNTER
REACHES 5
WITHIN A SINGLE
Y1 DEMAND
HIGH
PRESSURE
SWITCH (S4)
LOCKOUT
LED ALERT
CODE / OR
CRITICAL
ALERT 413
CLEARED
SERVICE
REQUIRED
2
LED ALERT
CODE / OR
MODERATE
ALERT 412
DISPLAYED
NORMAL
OPERATION
CLOSED
CLOSED
OPEN
OPEN
OPEN
CLOSED
CLOSED
TOP CAP
SWITCH (S173)
CLOSED
SERVICE
REQUIRED
2
1.
The thermostat terminates demand when the contactor is
de-energized. If demand is satisfied when alarm is not active, the
5-strike counter resets.
2.
Lockouts can be reset by cycling power off to the outdoor control
(A175)
R
terminal.
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...
