Lang Manufacturing LRPR1 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, Single Door Proofer-Retarder Model: LRPR1-Series

CONSTRUCTION FEATURES

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

•Walls, ceiling and door 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 door with removable magnetic door seal and mechanical
closure system

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 door from rack dents

CONTROL PACKAGE

• All controls located within the 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 LRPR1-
___ [Insert: 40, 50, 60, 70, 80, 90, 100, 110 or 120 depth] 5 to

6.6-kW electric heated, single 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 door with magnetic seal/mechanical closure system
and full width protective bar handle; 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 LRPR1-40 shown

(Rack not included)

Sheet No. LSP-RR8 (rev. 10/03)

Model/ Side-Load End-Load Double Side Load
Depth 28.4”W x 18”D 26”W x 20.4”D 36”W x 28.3”D

LRPR1-40 1 Rack 1 Rack None
LRPR1-50 2 Racks 2 Racks 1 Racks
LRPR1-60 2 Racks 2 Racks 1 Racks
LRPR1-70 3 Racks 3 Racks 1 Racks
LRPR1-80 4 Racks 3 Racks 2 Racks
LRPR1-90 4 Racks 4 Racks 2 Racks
LRPR1-100 5 Racks 4 Racks 2 Racks
LRPR1-110 5 Racks 5 Racks 2 Racks
LRPR1-120 6 Racks 5 Racks 3 Racks

MODEL/RACK CAPACITY GUIDE

®

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. 10/03-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 top. See below]

Sheet No. LSP-RR8 (rev. 10/03)

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

BakerSeries

®

Roll-In Rack, Single Door Proofer-Retarder Model: LRPR1-Series

CAD SYMBOLS & PRICING

Model

E Electrical Requirements Clearance from combustible W Water D Drain

Voltage Total kW 1 Phase 3 Phase

(inches from side, back)* Requirements Requirements

LRPR1 (40 - 120)

208VAC/60Hz 5.0 24.0A 13.8A

0

1/2” NPT 1/2” PVC

240VAC/60Hz 6.6 27.5A 15.8A

(1.5GPM @ 40PSI) (210˚F, 1GPM max.)

* Noncombustible floor only.

Retarder

Height Width Depth Weight

Freight

Model

BTU Rate @ 34˚F

Internal External Internal External Internal External Overall Actual Shipping

“A” “B” “C”

Class

LRPR1-40 1229

32.3” 41.1” 49.4” 950 lbs. 1100 lbs.

820mm 1044mm 1255mm 432 kg 500 kg

LRPR1-50

1696

42.4” 51.1” 59.4” 1100 lbs. 1250 lbs.

1077mm 1298mm 1509mm 500 kg 568 kg

LRPR1-60

1850

52.4” 61.1” 69.4” 1225 lbs. 1375 lbs.

1331mm 1552mm 1763mm 557 kg 625 kg

LRPR1-70

2308

64.4” 71.2” 79.5” 1375 lbs. 1525 lbs.

74.1” 91.4” 33.0” 38.7” 1636mm 1808mm 2019mm 625 kg 693 kg 70

LRPR1-80

2763

1882mm 2324mm 838mm 983mm

72.4” 81.2” 89.5” 1500 lbs. 1650 lbs.

1839mm 2062mm 2273mm 682 kg 750 kg

LRPR1-90

2907

82.5” 91.2” 99.5” 1625 lbs. 1775 lbs.

2096mm 2316mm 2527mm 739 kg 807 kg

LRPR1-100

3357

92.5” 101.2” 109.5” 1800 lbs. 1950 lbs.

2350mm 2570mm 2781mm 818 kg 886 kg

LRPR1-110

3497

102.5” 111.3” 119.6” 1925 lbs. 2075 lbs.

2604mm 2827mm 3038mm 875 kg 943 kg

LRPR1-120

3948

112.5” 121.3” 129.6” 2050 lbs. 2200 lbs.

2858mm 3081mm 3292mm 982 kg 1000 kg

38.7"/983mm

74.1"

1882mm

ENTRANCE

HEIGHT

91.4"

2324mm

14.8"/376mm
W WATER

CONNECTION

9.1"/231mm

E ELECTRICAL

CONNECTION

(C)

2.9"/74mm

E & W

When Ordering With Ceiling

Mounted Condensing Unit,

Add 11.8"(300mm)

11.8"/300mm

87.3"

2217mm

3.7"/94mm

D DRAIN CONNECTION

(Alternate location)

13.1"/333mm

29.1"/739mm

E ELECTRICAL

CONNECTION

13.3"/338mm
W WATER

CONNECTION

16.2"

441mm

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

33.0"/838mm

ENTRANCE WIDTH

(A)

(B)

4.0"/101mm

D DRAIN CONNECTION