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L4064A-F,J,N,R,T,W,Y
FAN AND LIMIT CONTROLLERS
APPLICATION
These combination warm air fan and limit controllers are
suitable for all types of forced air heating systems. The
controllers have 2 switches; one which opens the limit
circuit if the plenum temperature exceeds the preset
safety limit; it resets automatically. The other switch turns
the fan on and off. On the L4064A-F,J,N and R, fan is
turned on and off according to plenum temperature. The
L4064T,W, and Y however, have a bimetal heater in the
fan switch that turns the fan on approximately 20 to 90
seconds* after a call for heat begins. Fan off is
approximately 2-4 minutes after the call for heat ends.
The L4064B,D,N,R, and W have a manual fan switch to
override the fan on and off settings and allow continuous
fan operation. The L4064A-F,N,T,W,Y may be used with
all forced warm air systems. The L4064J and R have a
special high temperature range suitable for gravity
heating systems. All models may be used as limit
controllers by wiring only the limit side. Limit contacts are
suitable for line voltage, low voltage
*The fan-on timing can vary depending on applied
voltage and switch ambient.
INSTALLATION
WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. For 230VAC application, use of double insulated
cable is required.
5. After installation is complete, check out product
operation as provided in these instructions.
INSTALLATION INSTRUCTIONS
WARNING
Failure to remove brass jumper, If limit switch
is in low voltage circuit, can cause electrical
shock hazard or damage low voltage controls.
CAUTION
1. Disconnect power supply before connecting wiring
to prevent electrical shock or equipment damage.
2. When connecting cable or conduit to control, avoid
straining the control case.
Follow furnace or burner manufacturer's instructions,
if available. Maximum element temperature is:
L4064A-F,N,T,W,Y—350 F (177 C).
L4064J,R—250 F (121 C) above limit setting.
Maximum switch temperature is:
L4064A-F,J,N,R—190 F (88 C).
L4064T,W,Y—115 F (46 C).
69-0115-03
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Related Manuals for Honeywell L4064A-F
Summary of Contents for Honeywell L4064A-F
- Page 1 The other switch turns CAUTION the fan on and off. On the L4064A-F,J,N and R, fan is turned on and off according to plenum temperature. The L4064T,W, and Y however, have a bimetal heater in the 1.
- Page 2 L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS Surface Mounting (Fig. 1) Do not exceed these temperatures or the following electrical ratings (amperes): L4064A,B,E,F,T,W,Y—Hole in plenum should be just large enough to accommodate the 3/4 in.(19.1 mm) diameter Table 1. Electrical Ranges element tube. A 13/16 in. (20.6 mm) diameter hole is...
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Page 3: Wiring Connections
L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS Wiring Connections 1. Use bracket as a template to mark the location of mounting holes in plenum. Drill or punch holes for When connecting cable or conduit to this controller, use mounting screws. care to avoid strain on the control case. Connections can 2. -
Page 4: Settings And Adjustments
L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS HEATING L4064W SYSTEM TRANSFORMER LIMIT COMMON SIDE SIDE 120V TIMER MOTOR VALVE JUMPER IN PLACE THERMOSTAT (HOT) POWER SUPPLY-PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ADD .1 TO ANTICIPATOR SETTING ON THE THERMOSTAT WHEN FAN TIMER IS CONNECTED. -
Page 5: Limit Stop Adjustment
LIMIT OFF lever should be as high as the cool air. stop permits. 2. Move the FAN ON lever as follows: L4064A-F,N— *The fan-on timing can vary depending on applied FAN ON range is from 15 F (8.3 C) above the FAN voltage and switch ambient OFF setting to 35 F (19.0 C) below the LIMIT OFF... - Page 6 L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS 69-0115—03...
- Page 7 L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS 69-0115—03...
- Page 8 L4064A-F,J,N,R,T,W,Y FAN AND LIMIT CONTROLLERS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive ® U.S. Registered Trademark Toronto, Ontario M1V 4Z9 © 2010 Honeywell International Inc. 69-0115—03 E.K.
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