Page 1
C
A
B
D
®
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 #
F
AN ASSEMBLIES
A. 25W Energy Efficient Fan Assembly — Discharge
0477658 Fan Motor, Discharge (1)
(MO.4410549)
0463643 Fan Blade (FB.4780648)
B. 25W Energy Efficient Fan Assembly — Return
0477658 Fan Motor, Return (2)
(MO.4410549)
0463643 Fan Blade (FB.4780648)
Item Part # Description Wiring Item #
LAMPS AND BALLASTS
C. Ballast, Electronic (4)
0464251 2 lamps (BA.4481298)
0464252 3 lamps (BA.4440509)
0464253 4 lamps (BA.4481299)
D. Fluorescent Lamp (5)
Replace with like fixtures
©2006 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-922-1919 • MEXICO 1-800-522-1900 • WWW.HUSSMANN.COM
W6RRI
Technical Data Sheet
P/N 0477992_A
February 2007
P/N 0477992_A
Page 2
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
W6RRI Technical Data Sheet 2 of 5
Engineering
Plan Views
1
Dimensions shown as in. & (mm).
8 ft 12 ft
General
(A) Case Length* 96 3/8 (2448) 144 1/2 (3670)
Maximum O/S dimension of case back to front (Includes light channel) 56 1/4 (1429) 56 1/4 (1429)
Light Channel, front to back 7 (178) 7 (178)
Back of case to O/S edge of front bumper 50 1/2 (1282) 50 1/2 (1282)
* Each End and Insulated Partition adds 1 1/2 in. (38 mm) to the length of the lineup.
Electrical Service (Electrical Field Wiring Connection Point)
Back of case to center of 4x4x2 Upper Electrical box 2 3/4 (71) 2 3/4 (71)
Back of case to center of 2x4x2 Lower Electrical box 47 7/8 (1215) 47 7/8 (1215)
RH End of case to center of 4x4x2 Upper Electrical box 2 (50) 2 (50)
RH End of case to center of 2x4x2 Lower Electrical box 5 1/8 (132) 5 1/8 (132)
Waste Outlet
(B) RH End of case to the center of LH waste outlet (canopy drip pipe) 94 3/8 (2397) 142 1/2 (3620)
RH End of case to the center of RH waste outlet 2 (50) 2 (50)
Outside diameter of the drip pipe
7
/8 (22)
7
/8 (22)
Refrigeration Connections
(C) RH end of case to center of refrigeration outlet 93 3/8 (2372) 141 1/2 (3594)
Outside diameter of the liquid line
3
/8 (10)
3
/8 (10)
Outside diameter of the suction line
7
/8 (22)
7
/8 (22)
Roll-in Rear Load Dairy
11-2006
A
B
C
2 (50)
2
3
/4 (71)
50 1/2
(1283)
47 7/8
(1215)
56 1/4
(1429)
7 (178)
Ballast
1
5
/8 (132)
FRONT
Page 3
REFRIGERATION DATA
Note: This data is based on store
temperature and humidity that does
not exceed 75°F and 55% R.H.
W6RRI
Discharge Air (°F) 28
Evaporator (°F) 19
Unit Sizing (°F) 17
Important Note: Btu numbers are for
the W6RRI when installed in a cooler
operating at a 36°F air temperature.
The unit cooler coil must be sized for
an additional load of 1275 Btu/hr/ft
of W6RRI case installed in the cooler.
Btu/hr/ft W6RRI
Roll-in Dairy Carts
Parallel
1225
Conventional
1400
DEFROST DATA
W6RRI
Frequency (hr) 6
Defrost Water (lb/ft/day) 6
(± 15% based on case configuration
and product loading).
OFFTIME W6RRI
Time Terminated (minutes) 45
E
LECTRIC OR GAS
Not Recommended
Standard Defrost Thermostat — NA
CONVENTIONAL CONTROLS
Low Pressure Backup Control
W6RRI
CI/CO (Temp °F)* 12 / 2
Indoor Unit Only, Pressure Defrost
Termination (Temp °F)* NA
*Use a Temperature Pressure Chart to
determine PSIG conversions.
PHYSICAL DATA
Merchandiser Drip Pipe (in.)
7
/8
Merchandiser Liquid Line (in.)3/
8
Merchandiser Suction Line (in.)7/
8
Estimated Charge (lb)**
8 ft 2.7
12 ft 3.9
**This is an average for all refrigerant
types. Actual refrigerant charge may
vary by approximately half a pound.
7
(178)
6
(152)
Light
Channel
Honeycomb
2x4 Electrical Box
2x4
Electrical
Box
Fans
Fans
Coil
W6RRI
84
(2134)
41 1/8 (1045)
48 (1219)
69
(1753)
82 1/2
(2095)
56 1/4 (1429)
Honeycomb
13
(330)
10
(254)
Curtain
94
(2388)
50 1/2 (1283)
W6RRI
Dairy
Dimensions shown as in. & (mm).
Roll-in Rear Load
3 of 5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
P/N 0477992_A
Page 4
Electrical Data
Number of Fans 8 ft 12 ft
Discharge — 25W 4 6
Return — 25W 4 6
Amperes Watts
8 ft 12 ft 8 ft 12 ft
Discharge Fan
120V 60Hz Energy Efficient 3.60 5.40 220 330
230V 60Hz Energy Efficient 1.80 2.70 220 330
Return Fan
120V 60Hz Energy Efficient 3.60 5.40 220 330
230V 60Hz Energy Efficient 1.80 2.70 220 330
Minimum Circuit Ampacity
120V 60Hz Energy Efficient 7.40 11.00
230V 60Hz Energy Efficient 3.80 5.60
Maximum Over Current Protection 120V 20 20
Maximum Over Current Protection 230V 15 15
Standard Lighting
2 Row Canopy 1.02 1.54 118 170
Optional Lighting
None Shelf Lighting
Additional 1 Row Shelf 0.51 0.51 0.77 59 59 85
Additional 2 Row Shelf (Maximum) 1.02 1.02 1.54 118 118 170
115V Lighting Circuit Total = Standard Lighting + Total Optional Lighting + Optional Shelf Lighting
230V Lighting Circuit Total = Multiply 115V Lighting Circuit Total by 0.52
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
W6RRI Technical Data Sheet 4 of 5
W6RRI
Dairy
Page 5
5 of 5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
Fan Wiring
Offtime Defrost
4 & 6 Discharge Air Fans
120V POWER
BROWN
BAND
Fans
1
4 & 6 Return Air Fans
120V POWER
BROWN
BAND
Fans
1
Standard Lighting: 2 Row Canopy
120V NEUTRAL
BROWN
2
BAND
120V NEUTRAL
BROWN
2
BAND
Shelf Lighting
120V NEUTRAL
120V POWER
ORANGE OR
TAN BAND
Light
Switch
ORANGE OR TAN
B
B
BAND
W
3
W
3
R
BL
R
BL
BL
4
BL
4
BL
R
4
BL
R
4
R
4
R
4
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
Circled Numbers = Parts List Item Numbers
= 120V P
Grayed components in 12 foot models only.
R = Red G = Green BL = Blue B = Black W = White
OWER = 120V NEUTRAL = Field GROUND
= Case GROUND
P/N 0477992_A
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