Lang Manufacturing LRPR2 User Manual

LANG MANUFACTURING COMPANY • 6500 Merrill Creek Parkway, Everett, WA 98203

TOLL FREE: 800.882.6368 • FAX: [phone] • www.langworld.com

Item No.
Project
Quantity

BakerSeries

®

Roll-In Rack, Two Door Proofer-Retarder Model: LRPR2-Series

CONSTRUCTION FEATURES

• Heavy duty stainless steel exterior with 300 Series stainless steel inte­rior and aluminized steel top

•Walls, ceiling and doors are foam insulated

• Modular wall and ceiling panels, designed for cam-lock on-site
assembly

• Gasket seals provided at all seams and panel joints

• Quick response air-wash humidity/heat system with epoxy coated coils

• High capacity refrigeration system

• Designed for dual voltage 208 or 240-Volt, single or three phase
power input

• Heavy duty doors with removable magnetic door seals and mechanical
closure systems

PERFORMANCE FEATURES

• Dual purpose unit provides both dough proofing and retarding
capabilities

• 70-120˚F proofing temperature range

• 34-45˚F retarding temperature range

•Very accurate relative humidity control, with 50-95% operating range

• Same heating elements generate both heat and humidity.
[No submerged elements]

• Large evaporator sized for high humidity levels, to prevent drying

• High capacity refrigeration system for fast temperature pull-down

• All power supply components mounted above door, with unit front
access

• Interior bumpers protect proofer walls from rack damage

• Full width grab bar handle protects doors from rack dents

CONTROL PACKAGE

• All controls located within the right side door, at eye level

• Digital set TEMPERATURE, set HUMIDITY & TIME remaining displays

• Real time-of-day and automatic proof-start-time setting

• Set temperature touch pads [1˚F increments]

• Set relative humidity touch pads [1% increments]

SHORT/BID SPECIFICATION

Proofer/Retarder shall be a LANG Manufacturing Model LRPR2­___ [Insert: 30, 40, 50, 60, 70, 80, 90, 100, 110 or 120 depth] 5
to 13.2-kW [depending on size] electric heated, two door roll-in
rack unit, with: quick response air-wash humidity/heat system;
high-capacity refrigeration system; modular panel construction
with cam-lock assembly; all 300 Series stainless steel interior,
with protective cart bumpers; heavy duty doors with magnetic
seal/mechanical closure system and full width protective bar
handles; simple computerized controls, door mounted at eye
level, with accurate digital humidity, time and temperature
readouts; plus all the features listed and options checked:

STANDARD PRODUCT WARRANTY

One year, parts & labor

Model LRPR2-30 shown

Sheet No. LSP-RR9 (rev. 5/04)

MODEL/RACK CAPACITY GUIDE

Single Single Double

Model/

Side Load End Load Side Load

Depth

28.4”W x 18”D 26”W x 20.4”D 36”W x 28.3”D

LRPR2-30 2 Racks 3 Racks 0 Racks
LRPR2-40 4 Racks 3 Racks 2 Racks
LRPR2-50 5 Racks 5 Racks 2 Racks
LRPR2-60 6 Racks 6 Racks 3 Racks
LRPR2-70 7 Racks 7 Racks 3 Racks
LRPR2-80 9 Racks 8 Racks 4 Racks
LRPR2-90 10 Racks 10 Racks 5 Racks
LRPR2-100 11 Racks 10 Racks 5 Racks
LRPR2-110 12 Racks 13 Racks 5 Racks
LRPR2-120 14 Racks 13 Racks 7 Racks

®

USC

LANG MANUFACTURING COMPANY • 6500 Merrill Creek Parkway, Everett, WA 98203

TOLL FREE: 800.882.6368 • FAX: [phone] • www.langworld.com

© 2003 Lang Manufacturing Company Printed in U.S.A. 5/04-M-12266

Due to continuous improvements, specifications subject to change without notice.

OPTIONS & ACCESSORIES

❏ Pass-through model [Consult Factory]
❏ Remote refrigeration condenser unit [Consult Factory]

❏ Stainless steel floor

INSTALLATION REQUIREMENTS

• Proofer/Retarder shipped as modular panels for on-site assembly

•E Either 208V or 240V, 1 or 3-phase connection

• Condenser Unit requires dedicated circuit

•W 1/2” NPT cold water connection

•D 1/2” PVC vented drain connection
[Connections from rear and bottom. See below]

Sheet No. LSP-RR8 (rev. 5/04)

[Front View/Elevation] [Right Side View] [Top View/Plan]

BakerSeries

®

Roll-In Rack, Two Door Proofer-Retarder Model: LRPR2-Series

CAD SYMBOLS & PRICING

Retarder

Height Width Depth Weight

Freight

Model

BTU Rate @ 34˚F

Internal External Internal External Internal External Overall Actual Shipping

“A” “B” “C”

Class

LRPR2-30 2254

26.0” 31.0” 39.3” 1,055 lbs. 1,205 lbs.

660mm 787mm 998mm 480 kg 548 kg

LRPR2-40 3418

36.1” 41.1” 49.4” 1,275 lbs. 1,425 lbs.

917mm 1044mm 1255mm 580 kg 648 kg

LRPR2-50

3642

46.1” 51.1” 59.4” 1,350 lbs. 1,500 lbs.

1171mm 1298mm 1509mm 614 kg 682 kg

LRPR2-60

4787

56.1” 61.1” 69.4” 1,450 lbs. 1,600 lbs.

1425mm 1552mm 1763mm 659 kg 727 kg

LRPR2-70

5002

66.2” 71.2” 79.5” 1,525 lbs. 1,675 lbs.

74.1” 91.4” 68.1” 78.8”

1681mm 1808mm 2019mm 693 kg 761 kg 70

LRPR2-80

6139

1882mm 2322mm 1730mm 2002mm

76.2” 81.2” 89.5” 1,700 lbs. 1,850 lbs.

1935mm 2062mm 2273mm 773 kg 841 kg

LRPR2-90

6345

86.2” 91.2” 99.5” 1,775 lbs. 1,925 lbs.

2189mm 2316mm 2527mm 807 kg 875 kg

LRPR2-100

7479

96.2” 101.2” 109.5” 1,850 lbs. 2,000 lbs.

2443mm 2570mm 2781mm 841 kg 909 kg

LRPR2-110

7680

106.3” 111.3” 119.6” 1,950 lbs. 2,100 lbs.

2700mm 2827mm 3038mm 886 kg 955 kg

LRPR2-120

8808

116.3” 121.3” 129.6” 2,200 lbs. 2,350 lbs.

2954mm 3081mm 3292mm 1,000 kg 1,068 kg

Model

E Electrical Requirements Clearance from combustible W Water D Drain

Voltage Total kW 1 Phase 3 Phase

(inches from side, back)** Requirements Requirements

LRPR2 (30 - 80)

208VAC/60Hz 5.0 24.0A 13.8A
240VAC/60Hz 6.6 27.5A 15.8A

0

1/2” NPT 1/2” PVC

LRPR2 (90 - 120)*

208VAC/60Hz 10.2 48.0A 27.6A

(1.5GPM @ 40PSI) (210˚F, 1GPM max.)

240VAC/60Hz 13.2 55.0A 31.6A

* Features two humidification systems. ** Noncombustible floor only.

(C)

78.8"/2002mm

74.1"

1882mm

ENTRANCE

HEIGHT

91.4"

2324mm

14.8"/376mm

W WATER

CONNECTION

9.1"/231mm

E ELECTRICAL

CONNECTION

2.9"/74mm

E & W

When Ordering With Ceiling

Mounted Condensing Unit,

Add 16.9"(429mm)

16.9"/429mm

87.3"

2217mm

E ELECTRICAL

3.7"/94mm

D DRAIN CONNECTION

(Alternate location)

29.1"/739mm
CONNECTION

13.2"/335mm

W WATER

CONNECTION

18.4"/467mm

27.4"

696mm

24.1"

612mm

28.9"

734mm

3.7"/94mm

D DRAIN CONNECTION

(Alternate location)

When Ordering With Ceiling

Mounted Condensing Unit.

Mounting Location

And Orientation Will Vary.

29.6"

752mm

68.1"/1730mm

ENTRANCE WIDTH

(A)

(B)

4.0"/101mm

D DRAIN CONNECTION