Johnson Controls L-Series User Manual

FORM 145.05-EG2 (618)
JOHNSON CONTROLS
9
Condenser Water Regulating Valves
• Units without waterside economizer will permit compressor operation up to 55.0°F
and above. For condenser water temperatures below this threshold, optional con-
denser water regulating valve(s) are available. Optional condenser water valve con-
trols the water ow though unit condensers to maintain minimum discharge pressure
for all compressors with ow through unit enabled only in the cooling mode.
Optional Condenser and Bypass water valves maintain minimum discharge pressure
for all compressors with flow through unit always enabled.
Heating
• Hot water coil with factory installed and tested water piping and valve for modulated
control. Controlled by the unit controller.
• Electric heat, factory installed, wired, and tested.
• All of the heating options are in reheat position. However, the heating will only be
used when cooling is off.
• Only one heating option is available in any unit.
Controls
• Factory installed and wired non-fused disconnect switch for the unit power. Discon-
nect switch is accessible without opening unit doors.
• Static pressure transducer is installed and wired on all variable air volume (VAV)
units to control VFD operation.
• Additional static pressure transducer installed and wired with comparative logic built
in.
• Duct static pressure limit switch mounted and wired in unit to disable unit operation
in case of high duct static.
• BACnet (MS/TP) interface for communication with BAS.
• Water Flow Switch will lock out all compressors in the unit if minimum water ow
is not present.
High Efficiency Air Filtration
• Optional High Efciency MERV 13 4-inch thick lters are available with 4-inch
thick MERV 8 pre-lter.
High Efficiency Evaporator Coils
• High efciency evaporator coil for lower air ow, low leaving air temperature ap-
plications. Provides higher EER and higher capacity.
Modular Construction
• Unit shipped in multiple sections. All refrigerant piping, condenser water piping, and
condensate drain piping is factory assembled and does not require additional eld
work. Various sections are as follows:
• Refrigerant and heating section consisting of evaporator coil, water economy
coil, condensers, compressors, condenser water piping, and heating options.

Johnson Controls L-Series Specifications

General

Brand	Johnson Controls
Model	L-Series
Category	Air Conditioner
Language	English