Option 19 - Remote Temperature Reset; Option 20 - Pump Control; Option 21 - Pump Selection; Option 22 - Hot Gas Bypass Type - York YCWL0056SE Installation Operation & Maintenance

FORM 201.26-NM1
ISSUE DATE: 1/19/2018
Option 19 – Remote Temperature Reset
R E M O T E T E M P
I N P U T
Remote Temp Reset input selection is programmable
according to the type of input utilized. The following
options are available:
• DISABLED (default)
• 0.0 – 10.0VDC
• 2.0 – 10.0VVDC
• 0.0 – 20.0mA
• 4.0 – 20.0mA
The options display message for Remote
Temp Reset Input only appears if the Temp
reset Option is enabled under Service
Mode.
Option 20 – Pump Control
Pump Control is utilized to operate the optional on-
board pump kit or to control an external pump through
dry contacts 23 and 24. To use this option, the follow-
ing selection should be made in the Service Mode:
Y O R K H Y D R O
K I T P U M P S
When YORK HYDRO KIT PUMPS = 1, the controls
will be closed to run the pumps whenever any one of
the following conditions are true:
• Low Leaving Chilled Liquid Fault
• Any compressor is running
• Daily Schedule is ON and Remote Stop is closed.
Even if one of the above conditions are
true, the pump will not run if the chiller
has been powered up for less than 30 sec-
onds; or if the pump has run in the last
30 seconds to prevent pump overheating.
Hyrdo Kit pumps = 1 should not be selected on a
YCWL chiller.
JOHNSON CONTROLS
R E S E T
XXXXXXXXXXXXXX
= 1
E X T E R N A L
E V A P
EXTERNAL EVAP PUMP should be selected if an ex-
ternal pump is being controlled with the chiller pump
contacts. The operation will be the same as YORK
HDRO KIT PUMPS = 1
The following option should not be selected.
Y O R K H Y D R O
K I T P U M P S
Option 21 – Pump Selection
The displays for this PUMP SELECTION option
should only appear if "YORK HYDRO KIT PUMPS =
2" are selected under Option 19. Presently, this option
should not be used.
Option 22 – Hot Gas Bypass Type
The Hot Gas Bypass Type must be programmed based
on the option installed. Some chillers will not have hot
gas bypass installed. Others will have it installed on
System #1, System #2 or both systems.
The selected option is only displayed under the OP-
TIONS key and must be programmed under the Ser-
vice Mode.
H O T G A S B Y P A S S
N O N E
H O T G A S B Y P A S S
S Y S T E M
H O T G A S B Y P A S S
S Y S T E M
H O T G A S B Y P A S S
B O T H S Y S T E M S
Option 23 – Heatpump Unit
The heatpump display will appear if the heatpump
mode is enabled under the Service Mode.
Y C W L H E A T P U M P
SECTION 7 – UNIT CONTROLS
P U M P
= 2
T Y P E
T Y P E
1
T Y P E
2
T Y P E
U N I T
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