White Rodgers 2061 Thermostat User Manual
Contents
1. the bypass damper is in the closed position Connecting Duct Furnace Air pressure bypass damper closed all zones open and or not operating Cold Air Return Counter weighted Arm The bypass damper operating by means of air pressure permits any excess volume of air to pass directly to the cold air return avoiding an increased air velocity through the remaining open ducts which would result in discomfort to the occupants of that zone If several zones are not calling for heat the bypass damper should be partially open if only one zone is calling for heat the bypass damper should be open See the layout for zoned warm air system on page 2 for additional information Partially open one or more zones closed fan operating Open position most zones closed fan operating2. 0 in either direction so that yoke on damper motor drops into the two round holes on indicator wheel Then retighten wing nuts To change damper vane from open to closed position Loosen wing nuts and pull damper motor back from duct a short distance Rotate indicator wheel 90 in either direction so that yoke on damper motor drops into the two square holes on indicator wheel Then retighten wing nuts 133 0010 ZONE AIR BYPASS DAMPER INSTALLATION INSTRUCTIONS DESCRIPTION This bypass damper was designed for use with zoned warm air heating and air conditioning systems It is installed in a connecting duct between the furnace ple num or the supply duct and the cold air return duct lts purpose is to control and compensate for excess volume and velocity of the air due to the closing of the dampers leading to some of the zones INSTALLATION All parts needed for the bypass damper are provided except the damper vane The vane should be cut froma piece of sheet metal to the proper size to fit the duct The bypass duct should be properly sized It should be designed to handle at least the same amount of air as the supply duct less that required by the smallest zone The damper located in the bypass duct has a counter weighted arm It operates through the pressure of the air as opposed to the torque of the weighted arm Adjust the counterweight so that with all zones calling for heat the fan in operation and all ducts open
3. WHITE RODGERS 2061 ZONE AIR Two Wire DAMPER MOTOR with Access Mounting Plate INSTALLATION INSTRUCTIONS Operator Save these instructions for future use FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND OR PROPERTY DAMAGE The Type 2061 Damper Motor provides a low costsystem of zoned temperature control for warm air heating It is of the two wire type and is specially designed for use with a two wire thermostat with 2 Amp heat anticipator Each room or zone requires one damper motor and one thermostat The thermostat automatically controls the passage of warm air through the duct by operating the Do not exceed the specification ratings All wiring must conform to local and national electrical codes and ordinances This control is a precision instrument and should be handled carefully Rough handling or distorting compo nents could cause the control to malfunction A WARNING Do not use on circuits exceeding 30 volts Higher voltage will damage control and could cause shock or fire hazard All guarantees are void if these specifications are exceeded Electrical Ratings The Damper Motor draws 2 Amp Max at 25 VAC when in the open position Auxiliary Contacts Do not exceed 2 0 Amp at 25 VAC terminals 2 and 3 The Damper Motor draws more than 2 Amp while it is opening For this reason do not use more than the reco
4. ansformer supplies 2061 Damper Motors Low Voltage power for low voltage Diaphragm Gas Valve gas valve as well as gampen Motor Typical 3 Zone Gas Fired System CHECKING THE SYSTEM Turn on the electricity If gas fired be sure pilot is lit Then check each zone separately as follows 1 Turn thermostat to highest setting Damper vane for that zone will open and furnace burner will come on as auxiliary circuit is made on damper motor Yz Line 2 Turn thermostat to lowest setting Damper vane for that zone will close and furnace burner will shut off as auxiliary circuit is broken on damper motor MANUAL OPERATION The position of the damper vane can always be determined by looking at the indicator wheel If the word open is visible the vane is open If the word closed is visible the vane is closed Observe the following instructions in the event it is neces sary to change the damper vanes from closed to open position For example if the cooling system is not zoned but does use the same duct work as the heating system the damper vanes should be changed from the closed position to the open position at the start of the cooling season A CAUTION Be sure to change the vanes back to the open position at the start of the heating season OPERATION To change damper vane from closed to open position Loosen wing nuts and pull damper motor back from duct a short distance Rotate indicator wheel 9
5. circuit is made through the warp switch heater The damper motor begins to open Before the damper motor reaches the full open position side B of motor switch closes providing a low voltage auxiliary circuit for starting oil burner or opening gas valve side A of motor switch makes with contact C and the warp switch heater opens the warp switch con tacts The warp switch heater remains energized and keeps the warp switch contacts open as long as the thermostat calls for heat When the thermostat is satisfied the circuit through the warp switch is broken After this heater cools for a short time the warp switch contacts close energizing the damper motor through side A of motor switch Just after the damper motor begins closing side B of motor switch opens breaking the auxiliary circuit while side A of motor switch makes with contact 4 just before the damper motor fully closes The damper motor draws no current while in the closed position INSTALLATION DUCT LAYOUT This illustration shows a typical layout for a zoned warm air system using Zone Air Controls The use of a bypass damper is recommended See page 6 for details INSTALLING DAMPER MOTOR The following instructions apply for 6 8 and 10 ducts For round ducts and rectangular ducts under 6 a special bracket is available which replaces the access mounting plate 1 Select a convenient position for damper motor insta
6. l lation on duct work to each zone Carefully locate and mark center line on each side of duct 2 Marklocation for 1 2 hole Also mark locations for holes to attach bearing plate by measuring 16 from center of hole Drill all three holes and attach bearing plate with two 10 sheet metal screws provided 3 Locate point X on center line exactly opposite 1 hole Warp Switch 2061 Two Wire Contacts Damper Motor Normally Closed rococo e To auxiliary circuit I aN for operating oil l 110 280 or au 4 burner or gas valve 120 280 Contact 1 NOTE If same Thermostat C2 l ransformer powers both L l he auxiliary circuit and the I L damper motor connect he auxiliary circuit to L j cag l terminals 1 and 3 instead i of 2 and 3 Side A of l Motor Switch SES ie Side Bof AA VYW NO A mn Motor Switch Transtormer Warp Switch Motor Heater INTERNAL WIRING EXTERNAL WIRING The system is so wired so that if any one zone still calls for heat the burner stays on When all thermostats are satisfied all dampers will have closed and the circuit broken to the gas valve or oil burner control The blower in the furnace operates as in any conven tional unzoned hot air system When the airinthe plenum is warmed to a set temperature the fan control turns the blower on When the air temperature drops the fan control turns the bl
7. mmended number of damper motors per trans former as shown on page 4 B HITE RODGERS DIVISION EMERSON ELECTRIC CO 9797 REAVIS ROAD emerson Ol LOUIS MISSOURI 63123 5398 Printed in U S A DESCRIPTION damper motor which is installed on the duct work to each room or zone This Damper Motor Thermostat combination may be in stalled on present systems for economical conversion to zone heating It is ideally suited for split level and ranch type homes having a warm air heating plant PRECAUTIONS A CAUTION To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will burn out heat anticipator and could cause personal injury and or property damage SPECIFICATIONS Thermostat Use two wire thermostat with 2 Amp anticipator Timings From full close to full open Approximately 45 seconds From full open to full close Approximately 60 seconds Maximum Duct Size 300 square inches Maximum Duct Capacity 1200 cubic feet per minute PART NO 37 1499B Replaces 37 1499 9516 PRINCIPLE OF OPERATION This schematic shows the damper motor in the closed position As the thermostat calls for heat the damper motor is energized as a circuit is made through side A of motor switch At the same time a
8. nufacturer recommends a wiring dia gram follow such instructions If none are available the following diagrams show suggested circuits for Type 2061 Damper motors in conjunction with two wire thermo stats 2 Amp anticipator and other related controls For best connections use 18 Thermostat wire 16 will also work satisfactorily Make connections to screw terminals according to wiring diagram NOTE To check motor operation without thermostat connected jumper 2 to 4 to open motor Remove jumper to close motor The WR S81 0125 Transformer 40 VA will handle up to 4 damper motors The WR S81 0126 20VA will handle up to 2 damper motors Low Voltage Constant Ignition Oil Burner Control High Limit lt White Rodgers Damper Motor Thermostats Two Wire peor I eee Gl 15 ror VT to Burner fa See For x Motor 2 H3 L gal Oil x phoebe beh x i 14 l x r ai For x ieee eae a eeepc Gas x 2061 Damper Motors Additiona Zones He Transformer Line pa S81 0126 l G TRANSFORMER LOWVOLTAGE ae SILENT KNIGHT ranstormer HIGH LIMIT GAS VALVE ORO Typical Multi Zone Gas or Oil Fired System PLUG IN PILOT White Rodgers Damper Motor Thermostats Two Wire ine G S81 0125 Transformer 26A00 Series Tr
9. ough vane brackets Holding indicator wheel flush against access mounting plate lock damper shaft to vane by tightening set screws being sure to leave minimum clearance between edge of vane and access mounting plate as shown 10 Install vane through hole in duct by turning vane sideways and slipping damper shaft into slot in bearing plate on opposite side of duct Push indicator wheel flush against access mounting plate and spin indica tor wheel to assure free turning of vane Then attach access mounting plate to duct and cut off damper shaft so it extends 1 past bearing plate Access Mounting Plate Motor Ny A o m Indicator Wing Nut Wheel Damper Vane 4 x 10 Sheet Access Hole Metal Screws Access Mounting Damper Vane Plate Notches to clear sheet metal Vane Indicator screws if required i 6 Bracke s 90S 0 EF A 5 40 Screws Do not cut off damper shaft until 10 Sheet vane is installed Metal Screws With 8 92 ma Lockwashers Set Screws Leave 1 minimum clearance_ oe when tightening set screw 11 Motor is shipped in closed position Turn indicator wheel so that yoke on bottom of motor slips into square holes on indicator wheel when motor is placed into position Tighten motor firmly with wing nuts The word closed should be visible on the indicator wheel WIRING All wiring must conform to local and national electri cal codes If the furnace ma
10. ower off The addition of zoning has not affected normal fan operation Outlet Zone 1 Z7 Outlet BypassDamper Parts Group Supply Duct Bypass Duct 133 0010 Outlet Duct Layout For 4 Zone Warm Air System Return Duct Bearing Plate 10 Sheet Metal Screws e h V 1316 Point X Ve Dia Hole locate exactly opposite 1 2 hole N f Centerlines_ of Duct 4 Use access mounting plate as a template Hold plate against duct and mark the four hole locations for attaching plate to duct Be sure slotted hole in center of plate is over point X Fig 1 and that edge of plate is parallel with edge of duct Then drill the four holes to take 10 sheet metal screws 5 Cutout 4 x8 access hole through which damper vane is to be installed Access hole should be centrally located between the four mounting holes 6 Attach indicator wheel to damper shaft with two 5 40 screws with lockwashers 7 Cut damper vane to duct size allowing 1 minimum clearance between duct and vane at all points If required snip notches in vane to clear protruding sheet metal screws used to mount bearing plate 8 Attach vane brackets to locate damper shaft on exact center line of damper vane Dimension from center line of vane to center of holes for attaching vane brackets is 742 Then start 8 32 set screws into vane brackets 9 Insert damper shaft through access mounting plate then thr
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