Hussmann P4NX-EP Instruction Manual

P/N 0477981_B
C
B
D
A
C
D
E
F
D
P4NX-EP
Technical Data Sheet
P/N 0477981_B
NSF®Certified
March 2008
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.
Item Part # Description Wiring Item #
FAN ASSEMBLIES
4 Ft, 8 Ft & 12 Ft
A. 12W Standard Fan Assembly (1)
0047000 Fan Motor, Evaporator
(MO.4410103)
0461805 Fan Blade (FB.4780446)
12W Energy Efficient Fan Assembly (1)
0477655 Fan Motor, Evaporator
(MO.4410546)
0461805 Fan Blade (FB.4780446)
6 Ft Only
A. 7W Standard Fan Assembly (1)
0058698 Fan Motor, Evaporator
(MO.4410102)
0142780 Fan Blade (FB.0142780)
7W Energy Efficient Fan Assembly (1)
0477654 Fan Motor, Evaporator
(MO.4410545)
0142780 Fan Blade (FB.0142780)
Item Part # Description Wiring Item #
THERMOSTATS
B. Optional Adjustable Refrigeration Thermostat (2)
LAMPS. BALLASTS, LED FIXTURES AND POWER SUPPLY
C. Ballast, Electronic (3)
0480130 2 lamps (BA.4481676)
0480131 3 lamps (BA.4481654)
0480132 4 lamps (BA.4481677)
D. Fluorescent Lamp (4)
Replace with like fixtures
E. 0501213 Power Supply (EP.4481861) (5)
F. LED Fixture (6)
Replace with like fixtures
©2008 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-922-1919 • MEXICO 1-800-522-1900 • WWW.HUSSMANN.COM
Note: Revision B changes ballast (Page 1); adds optional LED lighting (Pages 1, 3, 4, 8); adds capacity and weight (Page 5).

2 of 9 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. P4NX-EP Technical Data Sheet
Engineering
Plan Views
Dimensions shown as inches and (mm).
Produce
10-2004
Wireway
26 3/4
(680)
25 1/4
(641)
37
(940)
A
41 1/2
(1054)
28 1/2
(724)
3 In.
(77 mm)
Required
Air Gap
Refrigeration
Outlet
Waste Outlet
Waste Outlet
FRONT
4 3/4 (120)
21 1/4
(540)
D
C
8(203)
12 1/8 (307)
4 1/4 (108)
41 1/2
(1054)
43 7/8
(1114)
B
Splashguard
19
(483)
NOTE: Case-to-Case Electrical Connections
are made IN FRONT OF SPLASHGUARD.
Electrical
Stub Up Area
6 x 6
(152x152)
Electrical
Field
Connection
26 1/2
(673)
4 3/4 (120)
4 1/2 (115)
P4NX
4 ft 6 ft 8 ft 12 ft
General
(A) Case Length (without ends or partitions) 48 3/8(1229) 72 3/8(1838) 96 3/8(2448) 144 1/2(3670)
(Each end and insulated partition adds 1 1/2 in. (38 mm) to case line up.)
Maximum O/S dimension of case back to front
(includes bumper) 37 (940) 37 (940) 37 (940) 37 (940)
Back of case to front of splashguard 28 1/2 (724) 28 1/2 (724) 28 1/2 (724) 28 1/2 (724)
Back of case to O/S edge of front leg 25 1/4 (641) 25 1/4 (641) 25 1/4 (641) 25 1/4 (641)
Distance between edges of external legs and center legs NA 29 1/2 (750) 41 1/2 (1054) 41 1/2 (1054)
Distance between edges of center legs NA NA NA 43 7/8 (1114)
Distance between front legs and splashguard 2 3/4(70) 2 3/4(70) 2 3/4(70) 2 3/4(70)
Electrical Service (Electrical Field Wiring connection point)
(B) RH End of case to center of stub up area 36 1/4 (921) 60 1/4 (1530) 84 1/4 (2140) 132 3/8 (3363)
Back of case to center of stub up area 19 (483) 19 (483) 19 (483) 19 (483)
Length of electrical wireway 26 1/2 (673) 26 1/2 (673) 26 1/2 (673) 26 1/2 (673)
(C) RH End of case to LH end of wireway 42 1/8 (1070) 66 1/8 (1680) 90 1/8 (2289) 138 1/4 (3511)
Waste Outlets (One each end)
(D) RH End of case to the center of LH waste outlet 36 1/4 (921) 60 1/4 (1530) 84 1/4 (2140) 132 3/8 (3363)
RH End of case to the center of RH waste outlet 12 1/8 (307) 12 1/8 (307) 12 1/8 (307) 12 1/8 (307)
Back O/S of case to center of waste outlets 26 3/4 (680) 26 3/4 (680) 26 3/4 (680) 26 3/4 (680)
Schedule 40 PVC drip pipe 1 1/4 (32) 1 1/4 (32) 1 1/4 (32) 1 1/4 (32)
Refrigeration Outlet
Back of case to center of refrigeration outlet 21 1/4 (540) 21 1/4 (540) 21 1/4 (540) 21 1/4 (540)
RH end of case to center of refrigeration outlet 8 (203) 8 (203) 8 (203) 8 (203)
PHYSICAL DATA
Merchandiser Drip Pipe (in.) 1 1/4
Merchandiser Liquid Line (in.) 3/8
Merchandiser Suction Line (in.) 7/8
Wireway

3 of 9P/N 0477981_B HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
25 1/4
(641)
12 1/4
(311)
27
(686)
24 5/8
(625)
26 3/4 (680)
25 1/4 (641)
37 (940)
28 1/2 (724)
21 1/4
(540)
81 3/4
(2077)
52 3/4
(1340)
11
(279)
4 3/4
(120)
Electrical
Case to Case
Connections
12 1/4
(311)
34 5/8
(878)
3 In. (77 mm)
Required
Air Gap
7 1/4 (183)
Refrigeration
Outlet
FAN
C
O
I
L
P4NX-EP
47 1/2
(1206)
Narrow Footprint, Multi-deck, 5 Display Levels
Dimensions shown as inches and (mm).
REFRIGERATION DATA
Note: This data is based on store temperature and
humidity that does not exceed 75°F and 55% R.H.
P4NX-EP UNLIT LIT
Discharge Air °F 33 31
Evaporator °F 30 28
Unit Sizing °F 28 26
* All display levels must use baffles.
Btu/hr/ft — Unlit Shelves
P4NX-EP‡‡ Parallel Conventional
UNLIT 1380 1505
‡‡ Add 10 Btu/hr/ft per shelf row for LED fixtures.
Add 20 Btu/hr/ft per shelf row for fluorescent lamps.
DEFROST DATA
P4NX-EP
Frequency (hr) 6
Defrost Water (lb/ft/day) 9
(±15% based on case configuration and
product loading.
OFFTIME P4NX-EP
Time (minutes) 30
ELECTRIC OR GAS Not Recommended
CONVENTIONAL CONTROLS
Low Pressure Backup Control
P4NX-EP
CI/CO** 21°F / 11°F
Indoor Unit Only, Pressure Defrost
Termination** 48°F
**Use a Temperature Pressure Chart to
determine PSIG conversions.
Estimated Charge (lbs)***
P4NX-EP
4 ft 1.9
6 ft 2.6
8 ft 3.7
12 ft 5.1
***This is an average for all refrigerant types
actual refrigerant charge may vary by
approximately half a pound.
Impact Excel P4NX-EP
All Produce
NSF Certification
This merchandiser model is manufactured to meet ANSI/NSF
(National Sanitation Foundation) Standard #7 requirements for
construction, materials & cleanability.

4 of 9 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. P4NX-EP Technical Data Sheet
Impact Excel P4NX-EP
All Produce
Electrical Data
4 ft 6 ft 8 ft 12 ft
Number of Fans—12W 1 — 2 3
Number of Fans—7W — 2 — —
Amperes Watts
4 ft 6 ft 8 ft 12 ft 4 ft 6 ft 8 ft 12 ft
Evaporator Fan
120V 60Hz Standard 0.65 1.00 1.30 1.95 50 78 100 150
120V 50Hz Standard 0.75 1.10 1.50 2.25 57 84 114 171
230V 60Hz Export 0.33 0.50 0.66 0.99 50 78 100 150
230V 50Hz Export 0.38 0.56 0.76 1.14 57 84 114 171
120V 60Hz Energy Efficient 0.30 0.38 0.60 0.90 18 28 36 54
230V 60Hz Energy Efficient 0.15 0.20 0.30 0.45 18 28 36 54
Minimum Circuit Ampacity
120V 60Hz Standard 0.85 1.20 1.50 2.15
120V 50Hz Standard 0.95 1.30 1.70 2.45
230V 60Hz Export 0.53 0.70 0.86 1.19
230V 50Hz Export 0.58 0.76 0.96 1.34
120V 60Hz Energy Efficient 0.50 0.58 0.80 1.10
230V 60Hz Energy Efficient 0.35 0.40 0.50 0.65
Maximum Over Current Protection 120V 20 20 20 20
Maximum Over Current Protection 230V 15 15 15 15
Standard Lighting (T-8 fluorescent)
1 Row Canopy 0.26 0.51 0.51 0.77 30 59 59 85
Optional Lighting (T-8 fluorescent)
Additional 2 Row Canopy 0.51 1.02 1.02 1.54 59 118 118 170
Additional 3 Row Canopy 0.77 1.53 1.53 2.31 89 177 177 255
1 Row Rail Light 0.26 0.51 0.51 0.77 30 59 59 85
Optional Shelf Lighting (T-8 fluorescent)
1 Row of Shelves 0.26 0.51 0.51 0.77 30 59 59 85
2 Rows of Shelves 0.51 1.02 1.02 1.54 59 118 118 170
3 Rows of Shelves 0.77 1.53 1.53 2.31 59 177 177 255
4 Rows of Shelves 1.02 2.04 2.04 3.08 118 236 236 340
Optional Always*Bright LED Lighting
1 Row of Shelves 0.15 0.19 0.26 0.38 18 23 31 45
2 Rows of Shelves 0.26 0.34 0.47 0.67 31 41 56 80
3 Rows of Shelves 0.38 0.53 0.74 1.11 45 63 89 133
4 Rows of Shelves 0.47 0.68 0.93 1.40 56 82 112 168
120V Lighting Circuit Total = Standard Lighting + Total Optional Lighting + Optional Shelf Lighting
230V Lighting Circuit Total = Multiply 120V Lighting Circuit Total by 0.52

5 of 9P/N 0477981_B HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
Impact Excel P4NX-EP
All Produce
ESTIMATED SHIPPING WEIGHT 5
Case Solid End
4 ft 6 ft 8 ft 12 ft (each)
lb (kg) 700 (318) 900 (408) 1100 (499) 1400 (635) 100 (45)
5Actual weights will vary according to optional kits included.
Product Data
ARI Refrigerated Volume 1 (Cu Ft/Ft) 8.06 ft3/ft (0.75 m3/m)
Recommended Usable Cube 2 (Cu Ft/Ft) 6.70 ft3 /ft (0.62 m3 /m)
ARI Total Display Area 3 (Sq Ft/Ft) 4.28 ft2/ft (1.30 m2 /m)
Shelf Area 4(Sq Ft/Ft) 6.46 ft2/ft (1.97 m2 /m)
1Computed using ARI 1200 standard methodology: Refrigerated Volume, ft3[m3]/Unit of Length, ft [m]
2ARI Refrigerated Volume less shelving and other unusable space: Refrigerated Volume/Unit of Length, ft3/ft [m3/m]
3Computed using ARI 1200 standard methodology: Total Display Area, ft2[m2]/Unit of Length, ft [m]
4Shelf surface area is composed of bottom deck plus standard shelf complement, as shown in the Hussmann
Product Reference Guide. The standard shelf complement for this model is (1) row of 16-inch shelf and
(2) rows of 18-inch shelves.eparately from fans.

6 of 9 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. P4NX-EP Technical Data Sheet
Refrigeration
Thermostat
2
To
Condensing
Unit
}
Light Blue
1, 2 & 3 Fans
120V NEUTRAL
BROWN BAND
120V POWER
Fans 1
BROWN BAND
1 Fan
2 Fans
2 Fans
3 Fans
4 ft
6 ft
8 ft
12 ft
12 ft
4
4
3
3
3
4
4
4
4
4
4
Optional
Two Row
Canopy
Optional
Three Row
Canopy
Connector
4
BL
W
BL
W
G
R
BL
W
B
R
RR
BL BL
R
BL
R
RR
BL
BL
R
BL
R
RR
B
B
Orange or Tan Band
3 Row Canopy
4
344
Connector
W
B
BL
BL
R
BL
R
RR
B
4 ft 6 ft or 8 ft 12 ft
4 ft 6 ft or 8 ft 12 ft
R = Red Y = Yellow G = Green BL = Blue B = Black W = White
= 120V POWER = 120V NEUTRAL = FIELD GROUND
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
= CASE GROUND
Fan Wiring
Offtime Defrost
Light Circuits

7 of 9P/N 0477981_B HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
4
3
4
4
4
B
W
BL
BL
R
R
BL
R
BL
W
W
R
B
R
BL
BL
R
3
B
BL
BL
BL
BL
R
R
R
R
R = Red Y = Yellow G = Green BL = Blue B = Black W = White
= 120V POWER = 120V NEUTRAL = FIELD GROUND
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
= CASE GROUND
Optional Shelf Harness and Light Circuits for
Four Rows of Shelves
4 ft case
Connector
4
3
4
4
4
B
W
Connector
6 ft or 8 ft case
12 ft case
BL
BL
R
R
BL
R
BL
W
W
R
B
R
BL
BL
R
3
B
BL
BL
BL
BL
R
R
R
R
4
3
4
4
4
B
W
BL
BL
R
R
BL
R
BL
W
W
R
B
R
BL
BL
R
3
B
BL
BL
BL
BL
R
R
R
R
Optional Shelf Lighting
Fluorescent Fixtures

8 of 9 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. P4NX-EP Technical Data Sheet
4 ft case
6 ft or 8 ft case
12 ft case
R
BL
R
BL 6
6
RBL
5
B
W
W
BL
R
G
Connector
Connector
B
W
B
W
B
W
R
BL
R
BL 6
6
R
BL
R
BL
R
BL 6
6
RBL
R
BL
BL
BL
(TYP)
Shelf Light
Plug & Receptacle
R = Red G = Green BL = Blue B = Black W = White
= 120V POWER = 120V NEUTRAL = FIELD GROUND
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
= CASE GROUND
Optional Shelf Harness and LED Light Circuits for
Two Rows of Shelves
R
R
B
Optional Shelf Lighting
LED Fixtures

9 of 9P/N 0477981_B HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL 6
6
6
6
6
6
6
RBL
5
B
B
W
W
BL
R
G
4 ft case
6 ft or 8 ft case
12 ft case
(TYP)
Shelf Light
Plug & Receptacle
B
Connector
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL 6
6
6
6
6
6
6
RBL
5
B
B
W
W
BL
R
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL
R
BL 6
6
6
6
6
6
6
RBL
5
B
B
W
W
BL
R
R = Red G = Green BL = Blue B = Black W = White
= 120V POWER = 120V NEUTRAL = FIELD GROUND
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
= CASE GROUND
W
Connector
Optional Shelf Harness and LED Light Circuits for
3, 4, 5, 6 & 7 Rows of Shelves
Optional Shelf Lighting
LED Fixtures