American Dryer Corp. Phase 7 / OPL ensor Activated Fire Extinguishing System D120 - Manual (Page 11)

113375 - 6 Telephone 01422 822282 11
NUMBER OF DRYERS 4 3 2 1
MINIMUM CROSS-
SECTIONAL AREA
SQ IN 615 455 315 200
SQ CM 3967 2935 2032 1290
MINIMUM ROUND
DUCT DIAMETER IN 28 24 20 16
CM 71 61 50 40
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Electrical Information _______________
Electrical Requirements
It is your responsibility to have all electrical connections
made by a properly licensed and competent electrician to
assure that the electrical installation is adequate and
conforms to local and state regulations or codes. In the
absence of such codes, all electrical connections,
material, and workmanship must conform to the applicable
requirements of the National Electrical Code ANSI/NFPA NO.
70-LATEST EDITION or in Canada, the Canadian Installation
Codes CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-
B149.2-M91 (L.P. Gas) or LATEST EDITION.
Important
Failure to comply with these codes or
ordinances, and/or the requirements stipulated in
this manual can result in personal injury or component
failure.
Note
Component failure due to improper installation
will void the warranty.
Each dryer should be connected to an independently
protected branch circuit. The dryer must be connected with
copper wire only. Do not use aluminum wire, which could
cause a fire hazard. The copper conductor wire/cable must
be of proper ampacity and insulation in accordance with
electric codes for making all service connections.
Note
The use of aluminum wire will void the warranty.
Wiring diagrams are affixed to the inside at the top front
control door and the rear upper back guard/panel.
Electrical Service Specifications
Gas and Steam Models Only
* 3-Wire is available. 8/8/08
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Gas and Steam
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering,
specify exact voltage.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse value,
by applying either local and/or National Electrical Codes to listed
appliance amp draw data.
Circuit breakers are thermal-magnetic (industrial) motor curve type ONLY.
For others, calculate/verify correct breaker size according to appliance
amp draw rating and type of breaker used.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
SERVICE
VOLTAGE
PHASE
WIRE
SERVICE
APPROX.
AMP DRAW
CIRCUIT
BREAKER
60 Hz 50 Hz
208 3ш 3 13.7 — 20
220 3ш 3 — 10.4 20
230 3ш 3 11.6 — 20
240 3ш 3 — 10.8 20
380 3ш 4* — 5.9 15
400 3ш 4* — 5.9 15
416 3ш 4* — 5.9 15
460 3ш 3 6.6 — 15
480 3ш 3 6.6 — 15
NOTE 1 Opening must be 2-inches (5.08 cm) larger than the duct (all the
way around). The duct must be centered within this opening.
NOTE 2 Distance should be 2 times the diameter of the duct to the nearest
obstruction.
Note
When the exhaust ductwork passes through a
wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger
than the duct (all the way around). The duct must be
centered within this duct.
Important
For extended ductwork runs, the cross section
area of the ductwork can only be increased to an
extent. Maximum proportional ductwork runs cannot
exceed 20 feet (6.09 meters) more than the original
limitations of 20 feet (6.09 meters) with two elbows.
When the ductwork approaches the maximum limits as
noted in this manual, a professional HVAC firm should be
consulted for proper venting information.
Exhaust back pressure measured by a manometer in the
exhaust duct must be no less than 0 and must not exceed
0.3 in WC (0.74 mb).
The ductwork should be smooth inside with no projections
from sheet metal screws or other obstructions, which will
collect lint. When adding ducts, the duct to be added should
overlap the duct to which it is to be connected. All ductwork
joints must be taped to prevent moisture and lint from
escaping into the building. Inspection doors should be
installed at strategic points in the exhaust ductwork for
periodic inspection and cleaning of lint from the ductwork.
Multiple Dryer Venting 16-Inch (40.64 cm)
Diameter Minimum Exhaust Connections at Common Duct
A = 48-3/4” (123.82 cm)
B = 20 feet (6.09 meters)