Winchester WEFC SERIES Mode d'emploi
Installation and Operators Manual
1
INSTALLATION & OWNERS
MANUAL
DOWN-FLOW
ELECTRIC SERIES
CAUTION: READ ALL SAFETY GUIDES
BEFORE INSTALLING THIS UNIT
INTRODUCTION
THIS MANUAL IS TO STAY WITH HOMEOWNER
ATTENTION
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FURNACE
WEFC
Winchester downflow Electric Furnaces are
specifically designed for Factory Built Housing
applications. The furnaces are rated at 240 volts,
60 Hz, single phase. 8, 10, 12, 15 and 20 Kw
models are available. All models have multi-
speed blowers capable of handling a wide range
of BTU’s of cooling.
These instructions are primarily to assist
qualified individuals trained and experienced in
the proper installation of this type of equipment.
Refer to authorities having jurisdiction for
additional guidance.
Shown with Optional Grill
FURNACE MODELS KW WT A/C SIZES
WEFC-0848 8 84 2.5 - 4.0
WEFC-1048 10 85 2.5 - 4.0
WEFC-1248 12 85 2.5 - 4.0
WEFC-1548 15 86 2.5 - 4.0
WEFC-2048 20 86 2.5 - 4.0
61BE0011/052908
INSTALLATION INSTRUCTIONS
DOWNFLOW ELECTRIC FURNACE
A. Rules For Safe Installation And Operation
1. This unit has been designed and manufactured to
comply with National Codes, it is the installers responsibility
to install this unit to comply with National Codes and/or
prevailing local codes and regulations. Manufacturer assumes no
responsibility for units installed in violation of any code or
regulation.
2. Access for servicing is an important factor in the
location of the furnace. A minimum of 24 inches should be
provided in front of the furnace for access to the heating
elements and controls.
3. This electric furnace is approved for zero (0)
clearance to combustible material on all or any part of the
furnace exterior and the inlet or outlet duct work.
4. Duct work must be installed in accordance with the
standards of the National Fire Protection Association (NFPA)
for the installation of Air Conditioning, Warm Air Heating
and Ventilating Systems (NFPA 90A and 90B). See National
Environmental Systems Contractors Association Manual K for
duct sizing recommendations.
5. Ground the unit to prevent electric shock. All
electrical wiring should be in accordance with the National
Electrical Code.
6. The safety testing agency label appearing on these
units covers the unit only. It does not cover any other
equipment.
7. The unit should be unpacked on receipt and if
damage is found, a claim should be made immediately by the
receiver upon the shipping carrier.
B. Physical Installation
Alcove: Must be a minimum of 24 inches deep by 20 inches
wide. Electrical connections are on right side. Door makes
overall depth of unit 25 inches. 24 inches must be clear in
front of the unit to nearest wall or partition. A return air
opening must be provided to allow return air to enter top
opening of furnace. Opening must be a minimum of 200
square inches for heating. Increase to a minimum of 300
square inches for A/C operation. For large A/C or HP
applications a larger opening may be required.
Closet: Must be of sufficient size to allow removal of air filter
and maintenance of the blower in the furnace. If return is in
door or wall below the furnace casing height a minimum of 6
inches clearance must be allowed on that side of furnace to
allow proper air flow to top of the furnace. Return air
openings must be as stated in alcove installation.
Furnace must be positioned to allow the discharge air to flow
unrestricted into the duct below. A metal transition should be
used if duct openings and furnace openings are offset. Be sure
to seal the joints to prevent air leakage.
Winchester / P2
D. Electrical Wiring
Refer to the units nameplate for specific electrical data.
Caution: Disconnect power at main fuse or circuit breaker
distribution panel before wiring furnace to prevent shock
or fire hazard.
Power wiring
Unit is suitable for use with copper conductors. Tighten all
wire connectors. Take care not to damage heater ceramic
insulators. For correct field wire size see unit nameplate and
field wiring table inside electrical compartment. Use 75
degree C minimum wire if wire must be replaced. Circuit
breakers are provided and supply circuits are to be connected
directly to the marked circuit breaker terminals.
Caution: Furnace is equipped with a protective shield
over field wiring connection. When field wiring is
completed, shield must be replaced to prevent hazard of
electrical shock when servicing furnace.
61BE0011/052908
Note: See unit for complete wiring diagram attached to
back of electrical compartment door.
Control wiring
Field connections to the low voltage leads are made using
appropriate field supplied wiring connectors. Consult
installation instructions provided with accessory items for
specific information on control wiring. Do not use two
separate thermostats for operation of heating and cooling. If
two class two circuits are used, use a thermostat with isolating
contacts to prevent inter-connection of two circuits. Set
thermostat heat anticipator at 0.15 amps for furnaces 10KW or
smaller, 0.30 amps for larger furnaces.
D. Blower Motor
Units are equipped with a three speed blower motor. Two
factory selected motor speed leads are connected to the blower
relay to provide automatic speed change for heating and
cooling airflow volumes. Set blower speeds based on system size
and coil face area. (See coil installation instructions)
E. Air Filter
Furnaces are factory equipped with an air filter. If the
return grille has its own filter, a filter installed in the
furnace should be removed.
F. Check Test and Start
The unit should be tested after the system has been completely
installed to determine proper operation. Unit is equipped with
heater time delay controls. All heating elements should turn
on within one minute.
G. Periodic Maintenance
The filter must be changed regularly during the year to permit
proper airflow for safe and efficient operation. Failure to keep
filters clean may cause damage to the system.
H. Contact us for Help or for Any Comments on Our
Products
As we strive to better serve our customers like you, we are
always ready to help you. We also welcome any comments
from our customers concerning quality and improvements that
could be made to our products. Please feel free to call or write
us. Thank you for the purchase of our product.
14 X 18 RETURN AIR OPENING
2 X 6 LINE AND DRAIN OPENINT
3 1/4 X 3 1/2 LINE AND DRAIN OPENING
TWO 1 3/4 LINE VOLTAGE K. O.
9/16 THERMOSTAT WIRE OPENING
Winchester / P3
61BE0011/052908
ITEMS USED ON PART # QTY DESCRIPTION
1 WEFC-(**)48 R67AB0001 1 3 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0002 1 4 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0003 1 5 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0004 1 6 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0007 1 8 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0005 1 10 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0006 1 12 KW@240V HEATING ELEMENTS
1 WEFC-(**)48 R67AB0014 1 15 KW@240V HEATING ELEMENTS
2 WEFC-(**)48 R68BAD001 1 20 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD002 1 25 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD003 1 30 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD004 1 35 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD006 1 45 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD007 1 50 AMP @240V CIRCUIT BREAKER DP
2 WEFC-(**)48 R68BAD008 1 60 AMP @240V CIRCUIT BREAKER DP
3 WEFC-(**)48 R68AA0003 1 240V / 24V / 40VA TRANSFORMER
4 WEFC-(**)48 R68AB0001 1 BLOWER RELAY DPDT
5 WEFC-(**)48 R68AC0001 1 TIME DELAY RELAY (TDR)
6 WEFC-(**)48 R68CA0002 1 240V 130F / 100F LIMIT SWITCH
7 WEFC-(**)48 R68AD0002 1 240V DP HEAT SEQUENCER
7 WEFC-(**)48 R68AD0003 1 240V SP HEAT SEQUENCER
8,9,10 WEFC-(**)48 BRA32-BMH 1 1/2 HP 230V 10X8 BLOWER ASSY
8 WEFC-(**)48 R69AB0001 1 10 X 8 BLOWER WHEEL
9 WEFC-(**)48 R65AA0001 1/2 HP 230V MOTOR
10 WEFC-(**)48 R68DE0003 1 5 MFD / 370V CAPACITOR
WEFC FURNACE INFORMATION SHEET
WEFC SERIES DOWN FLOW ELECTRIC FURNACE REPLACEMENT PARTS
Ce manuel convient aux modèles suivants
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