INSTALLATION & OPERATION MANUAL 10104 REV 3 (08/22)
PAGE
4
OF 20
Oyster Bars, Gas Boilers
S
ERVICE
C
ONNECTIONS
Service Connections
WATER QUALITY STATEMENT
Water is the essential ingredient in steam equipment, water quality is the major factor affecting the performance of your appliance. Crown Steam Group offers a
Comprehensive Water Treatment System which exceeds our minimum water requirements. Proof of installation and proper cartridges replacement is required for
warranty coverage. Water supply to Crown Steam Group steamers must be within these guidelines.
Total dissolved solids....................... ...... Less than 60 PPM
Chlorine ............................Less than 1.5 PPM
Total alkalinity ........................................ Less than 20 PPM
pH Factor .........................6.8 - 7.3
Silica ....................................................... Less than 13 PPM
Water which does not meet these standards should be treated with the installation of Middleby’s Water Treatment System. Call 919-762-1000 if you have questions
concerning your water meeting these parameters.
*Failure or malfunction of this appliance due to poor water quality is not covered under warranty.
Reference www.crownsteamgroup.com for complete warranty details and instructions.
As continued product improvement is a policy of Crown, specifications are subject to change without notice.
GAS CHARACTERISTICS AND CAPACITIES
DIMENSIONS
Model
Capacities (per kettle)
BTU
US Quart
Liters
OB-2-2-27-G
200,000
2 x 2
2 x 2
OB-3-2-40-G
250,000
3 x 2
2 x 3
OB-4-2-54-G
250,000
4 x 2
2 x 4
SERVICE CONNECTIONS
- Unless otherwise specified, Field Wire Electrical Connection to be 120 Volts, 60 Hertz single phase with grounding.
- GAS CONNECTION: 3/4” IPS supply line required
- DRAIN: 2”IPS piped to open floor drain. No Solid Connection.
- COLD WATER: 3/8” O.D. tubing at 25-50 PSI(170-345 kPa)
D
C
Model
Units
A
B
C
D
E
F
G
H
J
K
L
M
OB-2-2-27-G
in
(mm)
27”
(686)
54”
(1372)
8.75”
(222)
8”
(203)
5.75”
(146)
4”
(102)
19.25”
(489)
4.75”
(121)
3.5”
(89)
4”
(102)
59.75”
(1518)
21.63”
(549)
OB-3-2-40-G
in
(mm)
40”
(1016)
34.63”
(879)
OB-4-2-54-G
in
(mm)
54”
(1372)
48.63”
(1235)
Model
BTU/HR.
kW/HR.
GAS SUPPLY
SUPPLY PIPE PRESSURE (W.C.)
OB-G
200,000
58.6
Natural
7”-14” (178-356mm)
Propane
11”-14” (279-356mm)
250,000
73.3
300,000 (optional)
87.9
