Removable solid copper jumper between fan and limit switches. Tradeline models with mounting adapters for easy installation and strain relief bushings to protect wiring from field abuse. Honeywell l4064b installation instructions pdf download. Checkout when installation is complete, disconnect the fan motor. A step by step photo guide to testing combination fan limit switches on warm air furnace heating systems check this fan limit switch control if your furnace fan wont start wont turn on or wont stop runs continuously honeywell combination furnace control type l4064 explained in detail guide to troubleshooting heating system furnace.
Post a question or comment about the settings on the furnace blower fan limit switch and about the manual fan on or. Once the fan limit switch has sensed that the air in the plenum is a suitable temperature usually around 20 degrees above the room temperature it engages the blower fan to distribute air. Page 2 l4064b, l4064r universal combination fan and limit controllers surface mounting fig. Dial has individual pointers for fan cutin and cutout settings. The l4064af,n,t,w,y may be used with all forced warm air. L4064bhole in plenum should be just large enough table 1. Turns fan on and off according to plenum temperature via helical bimetal sensing element. The whiterodgers combination warm air limit and single speed fan control combines into one compact case, a switch which controls the fan or blower operation and also a switch which acts as a safety limit control. Make sure that the fan operates when the furnace temperature rises to the setting and shuts off when tem perature drops below set point and through the desired honeywell minneapolis, australia, canada, finland, point for the high. Regulates fan or blower operation and acts as high limit safety control. I looked on this page and found the following diagram. L4064b,w, and r models have a manual fan switch that overrides the fan control to keep the fan running continuously.
Limit setting adjustment move the limit lever to the temperature at which the high limit switch will open to stop the burner. Fan mode a call for fan g is received from the thermostat. L4064b universal combination fan and limit controllers. In a typical control sequence applied to parallel flow equipment, the air valve is closed to a zero minimum airflow before the fan is energized. Limit switch has adjustable stop to limit maximum settingshipped at 200 f 94 c. F 12356 12356 fuse abc 15 amp slow blow 2200096 fuse holder hkphh bcl 27089 28 draft regulator 6 12240 12240. Dec 11, 2011 the l4017 combination fan and limit control provides fan and high limit switching for all types of forced air heating systems. Range guide limit switches and machine safety sensing. The fan switch is designed to control blower operation. Tradeline models if you have additional questions, need further information, or would like to comment. Installation, operation and maintenance manual oil fired warm. Route the wire along the side of the refrigerator as shown in fig.
Wire connections on vestibule units with fan and limit wiring 8. Controls high limit and fan motors in forced air heating systems. Switch type l limit 3 switch opens on temperature rise f fan 4 switch closes on temperature rise id number unique number designated by the factory to indicate all other attributes including temperatures, terminals or connectors, mounting options, special markings, and other special customer requested requirements. Brian the typical fan limit switch settings are getting on a page above. This input has an indicator led in that will light when the control receives a call for fan. Integral automatic high temperature limit control in each heating element bank prevents the delivery of air at unsafe temperatures. This series includes camstat f562, f563, f564, f566, f567. Heavyduty dual speed fan relay is standard with furnaces. White rodgers fan blower limit controls mccombs supply co. 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. Nordyne 626552 fan limit switch l11520f fan limit switch l11520f. Time delay turns on blower as function of time andor temperature after call for heat time start fan control. When the room temperature reaches the thermostat setting, the furnace. Am i correct in thinking that as long as i choose the right length and know how to read a.
Honeywell combination fan and limit control switch 11 12 insertion l4064b2210 5 out of 5 stars 3 3 product ratings honeywell combination fan and limit control switch 11 12 insertion l4064b2210. Summer fan switch for ventilation without changing control settings. Hi, i need to replace the fan limit switch on my furnace. After the fan has been energized, the reheat will be energized upon a. White rodgers fan blower limit controls mccombs supply. The control will respond to an open limit and undesired flame. Honeywell l4017 user manual pdf download manualslib.
Follow switch assembly installation instructions on page 3. L4064b move the f an on lever to the temperature at which the fan is to come on. Searching the internet isnt helping me find an updated part number. These switches are designed to function in a variety of industrial environments where oil, grease, dirt, high pressure washdown, shock or vibration are present. Refer to the fan mode section for the control operation. Limit switches 45 miniature limit switches 67 compact precision limits 89 hazardous area limits 10 machine safety limits 1417 relialign door interlocks 18 for innovation thats well apart, theres only honeywell.
Limit setting adjustment these controllers have a limit stop which prevents. If no other mode is calling for blower operation, the control will choose a low speed value from the position of dip switch sw1 positions 4 through. How should i wire this whiterodgers fan and limit control. Time delay turns on blower as function of time andor temperature after call for heat time start fan control for heat assist. The fan limit switch tells the blower assembly when it is ok to blow the heated air. Single element type for applications with narrow space limitations. The limit is a hightemperature safety limit, i guess. Outputs ecm control the control controls a multiple speed ecm motor through the 6pin p3 connector. Attach red wire from fan motor to one terminal of fan to the limit switch. It will start the fan circulating warm air when the bonnet temperature. Power ventilator installation closes 105f opens 90 10 wiring diagram fig. This device is used on conventional chimney venting only.
The low voltage circuit turns the burner, circulator, or blower on and off, and opens and. L4064b move the fan on lever to the temperature at which the fan is to come on. Manual fan switch for constant fan operation, push the fan switch button in. How to diagnose and repair the furnace fan limit switch. An adjustable fan limit controller typically is designed for furnaces operating at temperatures from 100f to 250f, has a fan off lower limit that can be adjusted from 50f to 200f, a fan on switch adjustable from 65f to 215f and a fan high limit stop set at 200f. Sep, 2017 the fan limit switch tells the blower assembly when it is ok to blow the heated air. The efficiency of this system is the same as standard single duct vav equipment.
Replacement parts list cmf2 series downflow furnace. Pretravel the distance or angle that the actuator must go through to trip the contacts. Installation, operation and maintenance manual oil fired. A step by step photo guide to testing combination fan limit switches on warm air furnace heating systems check this fan limit switch control if your furnace fan wont start wont turn on or wont stop runs continuously honeywell combination furnace control type l4064 explained in detail guide to troubleshooting heating system. Fan and limit controls fan and limits selection guide. This article series explains how to install, wire, test, set or repair the fan limit control switch used on heating furnaces the same blower that may be used for both heating and cooling. This pdf catalog information was published in november 2000.
With more than 50,000 products ranging from snapaction, limit, toggle, and. Page 1 honeywell l4017 combination limit control high limit switching for all types of forced air heating systems. This fan and limit control combines, in one enclosure, a fan switch with. White rodgers 5a75 installation instructions manual pdf. Honeywell l4064b combination fan and limit control. Follow furnace or burner manufacturers instructions, if available. Limitations of limit switches generally restricted to equipment operating at relatively low speeds. Manual fan switch for constant fan operation overriding fan setting levers, push the fan switch button in. Fan off is approximately 24 minutes after the call for heat ends.
538 1024 150 127 733 19 1183 1270 409 712 1248 344 734 1206 409 1281 366 495 1259 794 771 566 502 1505 825 706 445 1423 133 179 1381 1323