5. Low Ambient Fan Control
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Table 9 .LCH, LGH 36S,48S,60S,72H Low Ambient Fan Operations
Models Fan Associated Compressor Fan Control
LCH, LGH 36S,48S,60S,72H 1 1 On with S11
Table 10. LCH, LGH 090,102,120,150 Low Ambient Fan Operations
Models Fan Associated Compressor
Low Ambient Control
OD Temp < ECTO 4.07 (55F)
1 1 OFF
,
,
,
,
2 . 2 On with S11 or S84
Table 11. LCH, LGH 156 Low Ambient Fan Operations
Models Fan Associated Compressor
Low Ambient Control
OD Temp < ECTO 4.07 (55F)
1 1, 2, 3 On with S11 or S84 or S85
,
2, 3 1, 2, 3 OFF
Table 12. LCH, LGH 180 Low Ambient Fan Operations
Models Fan Associated Compressor
Low Ambient Control
OD Temp < ECTO 4.07 (55F)
1 1, 3 On with S11, S84 or S85
2 1, 3 OFF
,
3 2, 3 On with S84 or S85
4 2, 3 OFF
Table 13. LCH, LGH 210 Low Ambient Fan Operations
Models Fan
Associated
Compressor
Low Ambient Control
OD Temp < ECTO 4.07 (55F)
and > ECTO 4.06 (40F)
Low Ambient Control
OD Temp < ECTO 4.06 (40F)
1 1, 3 On with CP1 OFF
2 1, 3 OFF OFF
3 1, 3 On with S11, S84 or S85 On with S11, S84 or S85
,
4 2, 3 On with S84 or S85 On with S84 or S85
5 2, 3 OFF OFF
6 2, 3 On with S84 or S85 OFF
Table 14. LCH, LGH 240/300S LCH, LGH 420,480,540,600 Low Ambient Fan Operations
Models Fan
Associated Compres-
sor
Low Ambient Control
OD Temp < ECTO 4.07 (55F)
and > ECTO 4.06 (40F)
Low Ambient Control
OD Temp < ECTO 4.06 (40F)
1 1, 2 On with CP1 or CP2 OFF
2 1, 2 OFF OFF
LCH, LGH 240/300S
3 1, 2 On with S11 or S84 On with S11 or S84
,
420
480
540
600
4 3, 4 On with S84 or S85 On with S84 or S85
,
,
,
5 3, 4 OFF OFF
6 3, 4 On with CP3 or CP4 OFF
CP1 − compressor 1, S11 − liquid line pressure switch on circuit 1.
CP2 − compressor 2, S84 − liquid line pressure switch on circuit 2.
CP3 − compressor 3, S85 − liquid line pressure switch on circuit 3.
CP4 − compressor 4, S94 − liquid line pressure switch on circuit 4.