Bohn SWN0200H2E Service Manual
BNWCUTB
June 2009
(Replaces BN-WCUTB-0407)
WATER-COOLED CONDENSING UNITS
Model SWN - Semi-Hermetic Reciprocating Compressor
Technical Guide
www.thecoldstandard.com
TABLE OF CONTENTS
Nomenclature ...................................................................................................................................................2
Features & Benets ..........................................................................................................................................3
Options ................................................................................................................................................................4
Performance Data, High & Medium Temperature (R-22) ...................................................................5
Performance Data, Medium & Low Temperature (R404A/R-507) ...................................................6
Electrical Data ................................................................................................................................................7-9
Dimensional Data ..........................................................................................................................................10
Physical Data ...................................................................................................................................................11
MEA Accepted
NOMENCLATURE
S W N 0500 H 2 C
Compressor
S = Semi-Hermetic
Reciprocating
2
Model Application Model Size Temp. Refrigerant Electrical Code
W = Water-Cooled N = Indoor 0075 - 2200 H = High
L = Low
M = Medium
E = Extra Low
2 = R–22
6 = R–404A/507
© 2009 Heatcraft Refrigeration Products, LLC
B = 208/230/1/60
C = 208/230/3/60
D = 460/3/60
E = 575/3/60
G = 230/1/60
FEATURES & BENEFITS
The indoor SWN water-cooled condensing unit is specifically designed for use in supermarket, restaurant,
warehouse and other commercial and industrial applications. The design focuses on ease of installation
and maintenance along with the flexibility to fit most application requirements.
Construction
Spacious, pre-painted electrical box
•
Fixed low pressure switch (adjustable on low temp models)
•
Fixed high pressure switch
•
Pump down switch
•
230V control circuit transformer on 460V units
•
Standard 16-3/4" tall box - (large 29 - 1/4" tall box is standard when
•
defrost components are selected)
Sealed liquid line lter drier and sight glass
•
Serviceability
Easy access refrigerant piping
•
Captive door fasteners
•
Single electrical connection location
•
Removable electrical box provides convenient front access to the oil
•
pump and compressor
Shell and tube cleanable condenser with outlet shut-o valve, charging
•
port and pressure relief device
Quality
Pre-bent tubing reduces the possibility of leaks
•
Shipped with dry nitrogen charge
•
Heavy duty base plate
•
Non-metallic conduit on all wiring runs
•
Components
Semi-hermetic reciprocating compressors
•
Compressor contractor and control circuit fusing
•
Oil pressure switch (when required)
•
Rigid mounted compressors (models 0075-0400)
•
Spring mounted compressors with suction and discharge vibration
•
eliminators (models 0499 and above)
Compressor head cooling fan or water jacket (when required)
•
Compressor solid state protection model (on units with 4D
•
compressors)
NOTE: SWN pictured with optional replaceable core
liquid lter, oil separator, replaceable core
suction lter and liquid solenoid valve
3
OPTIONS
Factory-Installed Options
Dual pressure switch
•
Oil separator with discharge check valve and oil return hand valve
•
Compressor and control circuit breaker
•
Two tier rack
•
Suction accumulator
•
Sealed suction lter
•
Replaceable core suction lter (0300-2200)
•
Replaceable core liquid lter (0300-2200)
•
Liquid line solenoid valve
•
Spring mounted compressors with suction and discharge vibration eliminators (models 0075 to 0400)
•
Water regulating valve (shipped loose)
•
Crankcase heater
•
Air defrost timer
•
Electric defrost kit. Kit includes timer, evaporator fan contactor, defrost heater contactor(s), lockout relay and
•
terminal block
Remote load fusing for electric defrost kit. Includes evaporator fan motor and defrost heater fuses
•
Beacon II™ compatible (contact factory)
•
Demand cooling for low temperature R-22 (contact factory)
•
4
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