
FORM 150.66-NM1 (708)
137
JOHNSON CONTROLS
8
TABLE 23 – YCAL0041 – YCAL0071 CONDENSER FAN CONTROL USING DISCHARGE PRESSURE ONLY
TABLE 22 – YCAL0041 – YCAL0071 CONDENSER FAN CONTROL USING OUTDOOR AMBIENT
TEMPERATURE AND DISCHARGE PRESSURE (DISCHARGE PRESSURE CONTROLS WILL
NOT FUNCTION AND FAN CONTROL WILL BE BASED ON AMBIENT TEMPERATURES ONLY,
UNLESS THE OPTIONAL DISCHARGE PRESSURE TRANSDUCER IS INSTALLED).
FIG. 15 – YCAL0041 – YCAL0071 FAN LOCATION (TYPICAL)
LD11419
STANDARD CONDENSER FAN CONTROL - YCAL0041 – YCAL0071
FAN
STAGE
ON
OFF
CONTACTOR
MICRO BOARD
OUTPUT
FAN #
SYS 1
SYS 2
SYS 1
SYS 2
SYS 1
SYS 2
1
OAT > 25°F (-3.9°C)
or
DP> Fan Ctrl On
Press
OAT < 20°F (6.7°C)
and
DP < Fan Ctrl On
Press - (Diff. Press)
7M
10M
TB7-9
TB10-9
1
2
2
OAT > 65°F (18.3°C)
or
DP > Fan Ctrl On
Press
+40 PSIG (2.76 Bars)
OAT < 60°F (15.6°C)
and
DP < Fan Ctrl On
Press -
(Diff. Press + 40 PSIG
(2.76 Bars))
7M
&
8M
10M
&
11M
TB7-9
&
TB7-10
TB10-9
&
TB10-10
1
&
3
2
&
4
FAN
STAGE
ON
OFF
CONTACTOR
MICRO BOARD
OUTPUT TB-4
FAN #
SYS 1
SYS 2
SYS 1
SYS 2
SYS 1
SYS 2
1
DP > Fan Ctrl
On Press
DP < Fan Ctrl On
Press - (Diff. Press.)
7M
10M
TB7-9
TB10-9
3
4
2
DP > Fan Ctrl On
Press +
40 PSIG (2.76 Bars)
DP < Fan Ctrl On
Press - ((Diff. Press.)
+ 40 PSIG
(2.76 Bars))
7M
&
8M
10M
&
11M
TB7-9
&
TB7-10
TB10-9
&
TB10-10
1
&
3
2
&
4
FAN #1
FAN #2
FAN #3
FAN #4
Содержание YORK YCAL0041EC
Страница 12: ...JOHNSON CONTROLS 12 FORM 150 66 NM1 708 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 57: ...FORM 150 66 NM1 708 57 JOHNSON CONTROLS 6 ELEMENTARY DIAGRAM CON T LD13248 FIG 4 CON T CONTROL CIRCUIT DUAL...
Страница 59: ...FORM 150 66 NM1 708 59 JOHNSON CONTROLS 6 ELEMENTARY DIAGRAM CON T FIG 5 CON T CONTROL CIRCUIT DUAL LD13260...
Страница 167: ...FORM 150 66 NM1 708 167 JOHNSON CONTROLS NOTES...