Johnson Controls LSWU035 User Manual

JOHNSON CONTROLS
11
SECTION 2 – INSTALLATION
FORM 145.05-NOM7
ISSUE DATE: 10/31/2019
SECTION 2 – INSTALLATION
UNIT INSPECTION
Immediately upon receiving the unit, it should be in-
spected for possible damage which may have occurred
during transit. If damage is evident, it should be noted
on the carrier’s freight bill. A written request for in-
spection by the carrier’s agent should be made at once.
See Shipping Damage Claims Service Policy (Form
50.15-NM) for more information and details.
To ensure warranty coverage, this equip-
ment must be commissioned and serviced
by an authorized Johnson Controls service
mechanic or a qualied service person
experienced in water cooled self contained
equipment installation. Installation must
comply with all applicable codes, particu-
larly in regard to electrical wiring and
other safety elements such as relief valves,
HP cut-out settings, design working
pressures and ventilation requirements
consistent with the amount and type of
refrigerant charge.
Lethal voltages exist within the control
panels. Before servicing, open and tag all
disconnect switches.
TABLE 4 - LSWU/LSWD/LSWF MINIMUM CFM
UNIT
SIZE
STD EVAP
(12 FINS
PER INCH)
HI EFF EVAP
(17 FINS
PER INCH)
EVAP AND
WATERSIDE
ECONO COIL
25T 4100 3600 3600
32T 5100 4400 4400
35T 6100 5300 5300
40T 5300 5300 5300
50T 8000 8000 8000
60T 8000 8000 8000
70T 11400 9900 9900
80T 11300 11300 11300
95T 12100 12100 12100
105T 12100 12100 12100
In order for the supply fan air proving switch to close
the unit must achieve the minimum CFM levels listed
in the chart. If the supply fan air proving switch does
not close the unit registers a warning or possibly fault
and shutdown.
APPROVALS
Design certified by ETL for indoor installation only.
LIMITATIONS
The installation of this unit must conform to local
building codes as well as the National Electrical Code
ANSI/NFPA No. 70 – or latest edition.
Refer to Table 2 for voltage limitations and Table 3 for
operating limitations.
TABLE 2 - VOLTAGE LIMITATIONS
UNIT POWER
SUPPLY
VOLTAGE VARIATIONS
MINIMUM
VOLTS
MAXIMUM
VOLTS
208/230-3-60 187 253
460-3-60 415 506
575-3-60 518 632
TABLE 3 - OPERATING LIMITATIONS
MINIMUM MAXIMUM
Entering Air DX Coil – Dry
Bulb
68.0°F 90.0°F
Entering Air DX Coil – Wet
Bulb
57.0
°F 72.0 °F
DX Cooling Coil Airow
Velocity
200
FPM
600
FPM
Condenser Water Flow
2.0
GPM/TON
3.0
GPM/TON
Entering Cond. Water
Temp with Water
Economizer
50.0
°F 90.0 °F
Entering Cond. Water
Temp W/O Water
Economizer
55.0
°F 90.0 °F
Entering Cond Water Temp
W/O Condenser Water Cntl
Valve
60.0
°F 90.0 °F
Steam Heat – Steam
Pressure
5 PSIG 15 PSIG
Hot Water Heat Entering
Water Temp
140.0
°F 160.0 °F
If the VAV boxes in the conditioned space
have hydronic heating coils installed, it is
the responsibility of the installing contrac-
tor to take appropriate measures to protect
the hydronic coils against low unit supply
air temperatures that could result in the
freeze up and rupture of the coils.

Johnson Controls LSWU035 Specifications

General

Brand	Johnson Controls
Model	LSWU035
Category	Chiller
Language	English