York YCAL0043 Installation Operation & Maintenance

JOHNSON CONTROLS
164
FORM 150.67-NM2
ISSUE DATE: 01/31/2019
SECTION 8 – UNIT OPERATION
STANDARD CONDENSER FAN CONTROL – YCAL0043 – YCAL0066
TABLE 24 - YCAL0043 – YCAL0066 CONDENSER FAN CONTROL USING DISCHARGE PRESSURE.
FAN
STAGE
ON* OFF*
CONTACTOR
MICRO BOARD
OUTPUT
FAN #
SYS 1 SYS 2 SYS 1 SYS 2 SYS 1 SYS 2
1 DP > Fan Crtl On Press
DP < Fan Ctrl On Press
– Diff.Press
7M 10M TB7-9 TB10-9 1 2
2
DP > Fan Ctrl On Press
and Fan Stage 1 is
energized
DP < Fan Ctrl On Press
– Diff. Press
7M
& 8M
10M
&11M
TB7-9
& TB7-10
TB10-9 &
TB10-10
1
&
3
2
&
4
TABLE 25 - YCAL0043 – YCAL0066 CONDENSER FAN CONTROL USING DISCHARGE PRESSURE ONLY
FAN
STAGE
ON OFF
CONTACTOR
MICRO BOARD
OUTPUT
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 1 2
2
DP > Fan Ctrl On Press
and Fan Stage 1 is
energized
DP < Fan Ctrl On
Press – Diff. Press.
7M
& 8M
10M
& 11M
TB7-9
& TB7-10
TB10-9
& TB10-10
1
&
3
2
&
4
* When a fan stage is turned on, the on pressure for the next stage is increased 20 PSIG and ramped back to the programmed on pressure
over the next 20 seconds.
** When a fan stage is turned off (programmed on pressure minus differential), the off pressure for the next stage is decreased 20 PSIG and
ramped back to the programmed off pressure minus the differential.
FIGURE 44 - YCAL0043 – YCAL0066 FAN LOCATION (TYPICAL)
LD11419
FAN #1
FAN #2
FAN #3
FAN #4

York YCAL0043 Specifications

General

Brand	York
Model	YCAL0043
Category	Chiller
Language	English