Hussmann IMPACT LW Instruction Manual

C
E
F
G
B
C
A
D
D
P/N 0395737_G
Merchandisers
®
LW
Technical Data Sheet
P/N 0395737_G
NSF®Certified
February 2007
Item Part # Description Wiring Item #
FAN ASSEMBLIES AND THERMOSTATS
A. 4W Fan Assembly (1)
0392457 Fan Motor, Standard (MO.4410101)
0409511 Fan Blade, embossing toward motor
(FB.0409511)
B. Optional Adjustable Refrigeration Thermostat (2)
C. 0398557 (Front) Defrost Termination Thermostat (3)
(CT.4440611)
0398558 (Rear) (Electric Defrost only) (CT.4481088)
D. 0425304 Heater Switch (4)
(Koolgas Defrost only)
(CT.0425304)
Item Part # Description Wiring Item #
HEATERS
E. 0395709 Modular Electric
Defrost Heaters, 208V (5)
(HE.4850409)
F. Drip Pan Heaters, Electric 208V (6)
0392413 8 foot case (HE.0392413)
0392414 12 foot case (HE.0392414)
Drip Pan Heaters, Koolgas 120V (7)
0421238 8 foot case (HE.4850496)
0421239 12 foot case (HE.4850497)
G. Nosing Anti-sweat Heaters (8)
0401605 8 foot case (Discharge) (HE.0401605)
0401557 8 foot case (Return) (HE.4850467)
0401606 12 foot case (Discharge)
(HE.4850471)
0401558 12 foot case (Return) (HE.4850468)
NOTE: Revision G corrects heater data on Page 4.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-922-1919 • MEXICO 1-800-522-1900 • WWW.HUSSMANN.COM
We reserve the right to change or revise specifications
and product design in connection with any feature of
our products. Such changes do not entitle the buyer to
corresponding changes, improvements, additions or
replacements for equipment previously sold or shipped.

LW Technical Data Sheet2 of 6 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
8 7/8
(141)
Access Area (Gray)
LW
C
L
5 9/16
(141)
10 7/8
(276)
2 7/8
(98)
5
(127)
DB
IFC
Refrig. Outlet
Refrig. Outlet
Electrical
Water Seal
(See Note*)
Waste Outlet
Front
A
H
G
E
Base Rail
81 1/2
(2070)
69
(1753)
Engineering
Plan Views
Dimensions shown as inches & (mm).
8 ft 12 ft
General
(A) Case Length (without ends or partitions) 96 1/4(2445) 144 3/8(3667)
(Each end and insulated partition adds 2 in. (51 mm) to case line up.)
Maximum O/S dimension of case back to front (includes bumper) 81 1/2 (2070) 81 1/2 (2070)
(B) Front of splashguard to O/S edge of front base rail 8 1/2 (216) 8 1/2 (216)
Back of case to O/S edge of front base rail 69 (1753) 69 (1753)
(C) Front of case to O/S edge of front base rail 12 1/2 (318) 12 1/2 (318)
Width of base rail 2 1/8(54) 2 1/8(54)
Stub-up area (gray) between front base rail and splashguard 7 5/8 (194) 7 5/8 (194)
Electrical Service (Electrical Field Wiring connection point)
RH End of case to center of nearest knockout 5 (127) 5 (127)
(D) Center of knockouts to O/S edge of front base rail 7 (178) 7 (178)
Waste Outlets
(E) RH End of case to the center of front waste outlet 58 1/4 (1480) 67 7/8 (1724)
(F) Center of waste outlet to O/S of front base rail 3 3/4 (95) 3 3/4 (95)
(G) RH End of case to center of rear waste outlet 38 (965) 76 1/2 (1943)
Back O/S of case to center of waste outlet 8 7/8 (225) 8 7/8 (225)
Water Seal
Edge of water seal to center of waste outlet 11 (279) 11 (279)
O/S diameter of drip pipe lines 1 1/2 (38) 1 1/2 (38)
Note*: Field installed water seal outlet, tees and connectors are shipped with case.
Refrigeration Outlet
RH end of case to center of RH front and rear refrigeration outlets 5 1/2(140) 5 1/2(140)
(H) LH end of case to center of LH front and rear refrigeration outlets 88 3/8 (2245) 138 7/8 (3527)
Back O/S of case to center of refrigeration outlet 70 1/4 (1784) 70 1/4 (1784)
(I) Center of refrigeration outlet to O/S edge of front skidrail 1 1/4(32) 1 1/4(32)
Single Deck
Frozen Food

REFRIGERATION DATA
Note: This data is based on store temperature
and humidity that does not exceed 75°F and
55% R.H.
FF IC
Discharge Air (°F) –12 –22
Evaporator (°F) –20 –30
Unit Sizing (°F) –23 –33
Btu/hr/ft FF IC
Parallel 655 670
Conventional 675 695
DEFROST DATA
FF IC
Frequency (hr) 24 24
Defrost Water (lb/ft/day) 1.5 1.2
(± 15% based on case configuration and product
loading).
ELECTRIC FF IC
Temp Term (°F) 48°48°
Failsafe (minutes) 60 60
GAS
Duration (minutes) 15 18
OFFTIME Not Recommended
Standard Defrost Thermostat
Close on rise: close 48°F — open 33°F
CONVENTIONAL CONTROLS
Low Pressure Backup Control
FF IC
CI/CO (Temp °F)* –27/–39 –27/–39
Indoor Unit Only, Pressure Defrost
Termination (Temp °F)*
Not Recommended
*Use a Temperature Pressure Chart to determine
PSIG conversions.
PHYSICAL DATA
Merchandiser Drip Pipe (in.) 1 1/4
Merchandiser Liquid Line (in.) 3/8
Merchandiser Suction Line (in.) 7/8
Estimated Charge (lb)**
8 ft 3.5
12 ft 5.3
**This is an average for all refrigerant types.
Actual refrigerant charge may vary by
approximately half a pound.
Length Added to Lineup by:
Each End/Partition (in.) 1 1/2
Each Contoured End 5
3 of 6P/N 0395737_G HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
_
_
D
E
I
G
F
H
J
A
Front
of Case
B
FAN COIL
K
CC
C
G
I
L
C
LW
902 375 81
9
14
3/4 32
1/4
35
1/2
AB
E
FH
J
KL
(MM)
178 20701753
214
12
1/2
318
3
3/4
95
7
127
5
69
32
1
1/4
8
1/2
D
81
1/2
M
7
178
Dimensions
FAN
COIL
M
N
O
LW
762 210
8
1/4
30
NO
(MM)
Dimensions shown in inches & (mm).
Impact LW
Frozen Food & Ice Cream
Single Level Wide Island Display
NSF Certification
These merchandisers are manufactured to meet ANSI /National
Sanitation Foundation (NSF®) Standard #7 requirements.

HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. LW Technical Data Sheet4 of 6
Impact LW
Frozen Food & Ice Cream
Electrical Data
8 ft 12 ft
Number of Fans – 4W 4 6
(Energy Efficient fan motors are not available for End or End-compartment models)
Amperes Watts
8 ft 12 ft 8 ft 12 ft
Evaporator Fans
120V 60Hz Standard 1.24 1.86 96 144
120V 50Hz Standard NA
230V 60Hz Export 0.60 0.90 96 144
230V 50Hz Export 0.72 1.08 108 162
120V 60Hz Energy Efficient 0.56 0.84 40 60
230V 60Hz Energy Efficient NA
Nosing Anti-sweat Heaters (on fan circuit)
120V 60Hz Standard 1.88 2.80 224 336
230V 50Hz Export 0.98 1.46 224 336
Cycling Anti-sweat Heaters NA
230V 50Hz Export NA
Minimum Circuit Ampacity
120V 60Hz Standard 3.32 4.86
120V 50Hz Standard NA
230V 60Hz Export 1.78 2.56
230V 50Hz Export 1.90 2.74
120V 60Hz Energy Efficient 2.64 3.84
230V 60Hz Energy Efficient NA
Maximum Over Current Protection 120V 20 20
Maximum Over Current Protection 230V 15 15
Electric Defrost Heaters
208V 60Hz Standard Front Compartment 8.0 12.0 1670 2505
208V 60Hz Standard Rear Compartment 8.0 12.0 1670 2505
230V 50Hz Export Front Compartment 8.9 13.3 2047 3060
230V 50Hz Export Rear Compartment 8.9 13.3 2047 3060
Koolgas Drip Pan Heaters
120V 60Hz Standard 5.0 7.5 600 900
230V 50Hz Export NA
Standard Lighting
None

5 of 6P/N 0395737_G HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
Defrost
Termination
Thermostat
Refrigeration
Thermostat
Dark Blue To
Condensing Unit
}
Light Blue
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
Circled Numbers = Parts List Item Numbers
Grayed components in 12 foot models only.
(Field Installed)
32
208 V Power From Defrost Contactors
L1 L2
Modular Electric Defrost Heaters
Drip Pan Heater
Modular Electric Defrost Heaters
Drip Pan Heater
6
5
6
5
Red
Red
Red
Red
BROWN BAND
Fans
BROWN BAND
Nosing (anti-sweat) Heaters
120V POWER
BROWN BAND
Fans
BROWN BAND
120V NEUTRAL
Nosing (anti-sweat) Heaters
8
1
8
1
Electric Defrost – Standard

Gas Defrost – Optional
LW Technical Data Sheet6 of 6 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
7
4
Drip Pan Heater
Yellow
Heater Switch
Yellow
120V POWER 120V NEUTRAL
Dark BlueDark Blue
Refrigeration
Thermostat
To
Condensing Unit
}
Light Blue
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
Circled Numbers = Parts List Item Numbers
Grayed components in 12 foot models only.
(Field Installed)
2
7
4
Drip Pan Heater
Yellow
Heater Switch
Yellow
120V POWER 120V NEUTRAL
Dark BlueDark Blue
BROWN BAND
Fans
BROWN BAND
Nosing (anti-sweat) Heaters
120V POWER
120V NEUTRAL
1
8
BROWN BAND
Fans
BROWN BAND
Nosing (anti-sweat) Heaters
1
8