Johnson Controls YORK YMC2 User Manual

Table 19: Programmable
Button Access Description
Heating LCHLT
Shutdown
Operator
In Heating mode, the existing LEAVING CHILLED LIQUID
TEMPERATURE – LOW TEMPERATURE cycling shutdown logic
includes an additional check to its existing logic that will
cause a shutdown in Heating mode. This setpoint allows the
user to specify the Leaving Chilled Liquid Temperature at
which the Heat Pump will shut down on LEAVING CHILLED
LIQUID – LOW TEMPERATURE cycling shutdown when the
Heat Pump is operating in Heating mode.
The low limit for this setpoint is the higher of (Leaving
Condenser Liquid Temperature Setpoint minus 86° F)
or (Cooling mode Leaving Chilled Liquid Temperature
Shutdown Temperature). The high limit for this setpoint is
the Leaving Condenser Liquid Temperature Setpoint. The
default is (Leaving Condenser Liquid Temperature Setpoint
minus 60°F). The high limit is the selected Heating Setpoint.
The Heat Pump will restart when the Leaving Chilled Liquid
Temperature exceeds the shutdown temperature by 5°F.
Table 20: Navigation
Button
Access
level
Description
Home View Returns user to HOME Screen
Evaporator View Returns user to EVAPORATOR Screen
Condenser View Returns user to CONDENSER Screen
YMC
2
Mod B with OptiView
™
Control Center
46

Johnson Controls YORK YMC2 Specifications

General

Brand	Johnson Controls
Model	YORK YMC2
Category	Chiller
Language	English