Johnson Controls LSWU035 Engineering Guide

FORM 145.05-EG2 (618)
8
JOHNSON CONTROLS
Features and Benefits (Cont’d)
Unit Cabinet
• Welded base made out of 10-gauge galvanized steel frame and structural members.
• External cabinet parts made out of painted 16-gauge galvanized steel.
• External panels made out of painted 18-gauge galvanized steel.
• Lifting lugs to lift the unit without skid.
• Hinged 2-inch thick access doors covering the coil, compressors, condensers, water
piping, electrical components, and fan access. Insulated where necessary with 2-inch
matt faced berglass insulation.
• Stainless steel drain pan with insulation, sloped in all directions.
• Condensate drain with cleanout and proper slope towards the drain.
Filters Section
• Filter section made out of 18-gauge painted galvanized steel.
• 4-inch thick MERV 8 lters are standard.
Condenser Water Piping
• Factory installed and tested condenser water piping.
• Condenser water piping exiting unit from the top for easier and shorter eld connec-
tions.
OPTIONAL FEATURES
Variable Frequency Drive (VFD)
• Factory installed, wired, and commissioned VFD controls the fan speed in conjunc-
tion with the unit controller, based on a signal from controller.
• Unit installed duct static pressure sensor to sense duct static using elds installed
pneumatic tubes.
• Optional manual electrical bypass manually enables unit to run the supply fan motor
at full speed in case the VFD failure.
Waterside Economizer
• Waterside economizer, which uses colder condenser water available during colder
outdoor conditions, to provide cooling by passing cold condenser water through ad-
ditional water economy coil upstream of the evaporator coil in terms of air ow.
Internal temperature sensors determine suitability of condenser water for full or par-
tial free cooling and route condenser water flow through the water economy coil
when suitable. Internal water piping and valves are included.
• Water economy coil with optional mechanically cleanable return bends is available.
• Condenser water ow through the unit is enabled only in cooling mode. Minimum
condenser water temperature for unit compressor operation in this mode is 40.0°F.

Johnson Controls LSWU035 Specifications

General

Brand	Johnson Controls
Model	LSWU035
Category	Chiller
Language	English