Blodgett DS-SC Series - Manual (Page 6)

6 OM-DS-SC
Installation
Immediately inspect the unit for external and internal damage when it is delivered.
Report any damage to the carrier. After inspection, keep the unit in its shipping
container until it is ready to be installed. The unit must be installed level. Level the unit
front to rear and left to right, by adjusting its feet. Check for levelness by using a spirit
level on top of the cabinet, and checking in both directions.
The DS-SC models have no minimum clearance requirements, but room
should be provided so that the units may be serviced. The use of approved flexible
tubing and quick disconnect attachments will be helpful in allowing the unit to be
moved. For example, 24 inches right side clearance is needed for proper servicing,
unless the unit can be easily moved.
1. Electrical Supply Connection
A. On model DS-SC, you must provide 115 Volt Alternating Current, 60 Hz,
single phase, 15 AMP service. Local codes and/or the National Electrical
Code should be observed in accordance with ANSI/NFPA-70-1987 (or latest
edition). AN ELECTRICAL GROUND IS REQUIRED.
B. The electrical schematic is located in the electrical enclosure and in this
manual. In Canada provide electrical service in accordance with the Canadian
Electrical Code, CSA C22.1, Part 1 and/or local codes.
2. Water Supply Connection
A. For the DS-SC, provide a 3/8” NPT pipe connection for untreated water at
the rear of the unit. A back siphonage device (check valve) must be installed,
complying with local plumbing codes. The water pressure should be between
30 and 60 PSI (210 to 410 kPa). A pressure regulator is required above 60
PSI (410 kPa).
B. The condenser spray uses 0.70 to 0.95 gallons of water per minute (2.6 to
3.6 liters per minute) at 30 to 60 PSI (210 and 410 kPa). The spray will only
operate when a steamer cavity (cooking chamber) is in operation.
C. Water supply lines should be sized to provide for maximum water use (the
total of the boiler and condenser spray) as shown in the following table:
DS-SC Steamer condenser spray only
AT 40 PSI (280 kPa) 47.4 (180)
AT 60 PSI (410 kPa) 57.0 (215)
3. Drain Connection
A. On all models, the drain connection is made at the rear of the unit, using
a 1-1/4” NPT pipe. Do NOT use plastic pipe — the piping must be able to
withstand steam and hot water. Extend the drain piping to a nearby floor drain.
Piping of 1 - 1/4” NPT (or 1 - 1/2” NPT) is acceptable for distances of six feet or
less. If the distance to the drain is further than six feet, use 2” NPT piping.
B. Install the drain line with a constant downward pitch. Do not allow any
water traps in the line. A trap can cause pressure to build up inside the
cavity during steaming, which will make the door gasket leak. A vertical
air gap must be maintained between the drain line and the building drain,
unless otherwise specified by local plumbing codes.
WARNING
THE UNIT MUST BE INSTALLED BY
PERSONNEL WHO ARE QUALIFIED TO
WORK WITH ELECTRICITY AND PLUMBING.
IMPROPER INSTALLATION CAN CAUSE
INJURY TO PERSONNEL AND/OR DAMAGE TO
THE EQUIPMENT. THE UNIT MUST BE
INSTALLED IN ACCORDANCE WITH ALL
APPLICABLE CODES.
CAUTION
SHIPPING STRAPS ARE UNDER TENSION.
THEY CAN SNAP BACK VIOLENTLY AND
CAUSE INJURY WHEN CUT.
CAUTION
MAKING ELECTRICAL OR MECHANICAL
CHANGES TO THE UNIT WITHOUT APPROVAL
FROM THE FOOD SERVICE
ENGINEERING DEPARTMENT MAY VOID
WARRANTIES.
IMPORTANT
IMPROPER DRAIN CONNECTION
WILL VOID WARRANTY.
Leave an air gap between the hose
and the building drain, and don’t
allow water traps in the line.