Blodgett SC-GH User Manual
SC-GH SERIES
BLODGETT OVEN COMPANY
HIGH EFFICIENCY GAS FIRED CONVECTION STEAMER
INSTALLATION – OPERATION – MAINTENANCE
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802) 864-0183
www.blodgett.com
S00061 Rev C (6/10)
1
IMPORTANT NOTES FOR INSTALLATION AND OPERATION
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
WARNING: Improper installation, operation, adjustment, alteration, service
or maintenance can cause property damage, injury or death. Read the
installation, operating and maintenance instructions thoroughly before
installing, operating or servicing this equipment.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other appliance.
PURCHASER: Instructions to be followed in the event that the operator of this
appliance smells gas must be posted in a prominent location. This information shall be
obtained by consulting the local gas supplier.
Intended for commercial use only. Not for household use.
Do not attempt to operate this unit in the event of power failure.
Adequate clearances must be maintained for safe and proper operation.
The appliance area must be kept free and clear of combustibles.
Do not obstruct the flow of combustion and ventilation air.
Contact the factory, the factory representative or a local service company to perform
maintenance and repairs should the appliance malfunction. Refer to warranty terms.
This manual should be retained for future reference.
2
TABLE OF CONTENTS
DESCRIPTION PAGE
1.0 Service Connections ............................................................................................... 4
2.0 Installation ............................................................................................................... 5
3.0 Performance Check ............................................................................................... 11
4.0 Operation Instructions ........................................................................................... 12
5.0 Maintenance .......................................................................................................... 14
6.0 Deliming Procedure ............................................................................................... 19
7.0 Troubleshooting..................................................................................................... 20
3
1.0 SERVICE CONNECTIONS
24 [610]
SC-5HE 67 [1704]
SC-7GH 67.00 [1704]
SC-10GH 76.88 [1953]
SC-16GH 70.38 [1788]
6.00 [152]
28.00 [711]
29.50 [749]
32.13 [816]
41.00 [1041]
36 [914]
SC-16GH ONLY
REAR FLANGED FOOT DETAIL
7/16" [11mm] HOLES
ON 2.5 [63] B.C.
2 EQUALLY SPACED
Ø
DIMENSIONS ARE IN INC HES [MM]
Unless otherwise specified, Electrical Connection to be 120 Volts, 60 Hertz single phase with ground. Furnished with 6 foot cord with 3 prong plug.
Maximum 4.0 amps.
DRAIN: 2" IPS piped to open floor drain. No Solid Connection. Maximum 24" length bef or e open air gap opening. (No bends or elbows)
GAS CONNECTION: 3/4" IPS supply line required.
CONDENSING COLD WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)
GENERATOR WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)
Less than 1.5 PPM
Less than 13 PPM
Less than 20 PPM
Less than 60 PPM
WATER QUALITY STATEMENT FOR GENERATOR
7.0-8.5pH Factor
Chlorine
Silica
Total alkalinity
Total dissolved solids
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.
Water which fails to meet these standards should be treated by installation of water conditioner.
local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:
Water quality is the major factor affect ing the performance of your appliance. If you are unsure of water quality, consult a
12 - 14 INCH6 - 14 INCH
MODEL
95,000
SC-5GH
BTU/HR. kW/HR.
28
41SC-7GH
140,000
190,000
SC-10GH
56
152 - 352mm 305 - 352mm
PROPANENATURAL LEFT
0
RIGHT BACK
6 INCH
152mm
SC-16GH
0
GAS SUPPLY PRESSURE (W.C.) INSTALLED CLEARANCE
1.5 [38]
2.5 [64]
1.25 [32]
3.50 [89]
SAFETY RELIEF
VALVES
33.13 [841]
49.25 [1251]
18 [457]
SC-16GH
15.75 [400]
1 [25]
USE ON NON-COMBUSTIBLE FLOORS ONLY
4
2.0 INSTALLATION
WARNING: Do not connect the appliance to the electrical supply until
after the gas connection has been made.
Installation must conform to local codes, or in absence of local codes, with the National Fuel
Gas Code - ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA
B149.1, as applicable.
1. The appliance and its individual shut off valve must be disconnected from the gas supply
piping system during any pressure testing of that system at pressures in excess of ½ psi
(3.5 kPa).
2. The appliance must be isolated from the gas supply piping system by closing its
individual manual shut off valve during any pressure testing of the gas supply piping
system at test pressures equal to or less than ½ psi (3.5 kPa).
Electrical grounding must be provided in accordance with local codes, or in the absence of
local codes, with the National Electrical Code ANSI/NFPA 70, OR THE Canadian Electrical
Code, CSA C22.2, as applicable.
Ventilation must be provided in accordance with local codes, or in the absence of local
codes, with ANSI/NFPA 96 Standard for Ventilation and Fire Protection of Commercial
Cooking Operations.
WARNING: ELECTRICAL GROUNDING INSTR UCTIONS
This appliance is equipped with a three-prong (grounding) plug for your
protection against shock hazard and should be plugged directly into a
properly grounded three-prong receptacle. Do not cut or remove the
grounding prong from this plug. (120V units only).
WIRING DIAGRAM FOR APPLIANCE IS LOCATED ON RIGHT HAND SIDE PANEL OF
THE COOKER CABINET.
5
2.0 INSTALLATION (Continued)
2.1 EXHAUST FANS AND CANOPIES:
Canopies are set over ranges, ovens, kettles, etc., for ventilation purposes. It is
recommended that a canopy extend 6" past the appliance and be located 6' 6" from the
floor. Filters should be installed at an angle of 45 degrees or more with the horizontal.
This position prevents dripping of grease and facilitates collecting the run-off grease in
a drip pan, usually installed with the filter. A strong exhaust fan tends to create a
vacuum in the room and may interfere with burner performance or may extinguish pilot
flames. Makeup air openings approximately equal to the fan area will relieve such
vacuum. In case of unsatisfactory performance on any appliance, check with the
exhaust fan in the “OFF” position.
2.2 WALL EXHAUST FAN:
The exhaust fan should be installed at least two feet above the vent opening at the top
of the unit.
2.3 CLEARANCES:
Adequate clearance must be provided in aisle and at the side and back. Adequate
clearances for air openings into the combustion chamber must be provided, as well as
for serviceability for use on noncombustible floors. Minimum clearance from
combustible and noncombustible construction, 0" on left side, 0" on right side and 6"
from back.
WARNING: These procedures must be followed by qualified
personnel or warranty will be voided. An open gap floor drain is
required immediately below the appliance drain.
6
2.0 INSTALLATION (Continued)
To Install:
1. Uncrate carefully. Report any freight damage to the freight company immediately.
2. Set the unit in place. Be certain to maintain the minimum clearances from combustibles
and non-combustibles.
3. For an appliance supplied with legs, level the appliance using a spirit level. Should
flanged adjustable feet be provided, anchor to floor using proper anchoring devices.
4. Seal bolts and flanged feet with Silastic or other equivalent compound.
5. Be certain to leave adequate clearances for cleaning, maintenance and service.
WARNING: For an appliance equipped with casters, the installation
shall be made with a connector that complies with the standard for
connectors for moveable gas appliances, ANSI Z21.69-CSA 6.16 and a
quick-disconnect device that complies with the standard for quickdisconnect devices for use with gas fuel, ANSI Z21.41-CSA 6.9;
adequate means must be provided to limit the movement of the
appliance without depending on the connector and the quickdisconnect device or its associated piping to limit the appliance
movement; the location where the restraining means may be attached
to the appliance is on bottom of unit directly below relief valve.
If the unit is also equipped with an optional water fill valve it too must
be installed with a flexible water supply tube, a quick disconnect and
strain relief.
GAS CONNECTION:
CAUTION: The pipe thread compound used when installing pipes must
be a type that is resistant to the action of liquified petroleum or
propane gases.
NOTICE: If this equipment is being installed at over 2,000 feet altitude
and was not so specified on order, contact service department. Failure
to install with proper orifice sizing may void the warranty.
7
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