White Rodgers 2061 User Manual
2061 ZONE-AIR
CAUTION
!
T wo-Wire DAMPER MOT OR
WHITE-RODGERS
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.
with Access-Mounting Plate
INST ALLA TION INSTRUCTIONS
DESCRIPTION
The Type 2061 Damper Motor provides a low-cost system
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 components could cause the control to malfunction.
WARNING
!
Do not use on circuits exceeding 30 volts. Higher
voltage will damage control and could cause
shock or fire hazard.
damper motor which is installed on the duct work to each
room or zone.
This Damper Motor-Thermostat combination may be installed on present systems for economical conversion to
zone heating. It is ideally suited for split-level and ranchtype homes having a warm air heating plant.
PRECAUTIONS
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.
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).
NOTE
The Damper Motor draws more than .2 Amp while it
is opening. For this reason, do not use more than the
recommended number of damper motors per transformer as shown on page 4.
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
Printed in U.S.A.
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 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 contacts. 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.
Warp Switch
Contacts
(Normally Closed)
110-280 or
120-280
Thermostat
Side “A” of
Motor Switch
Side “B” of
Motor Switch
INTERNAL WIRING
EXTERNAL WIRING
2061 Two-Wire
Damper Motor
Contact
“C”
4
Warp Switch
Heater
Motor
22
3
1
To auxiliary circuit
for operating oil
burner or gas valve
NOTE: If same
transformer powers both
the auxiliary circuit and the
damper motor, connect
the auxiliary circuit to
terminals 1 and 3 instead
of 2 and 3.
Line
Transformer
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 conventional, unzoned hot air system. When the air in the plenum
is warmed to a set temperature, the fan control turns the
blower on. When the air temperature drops, the fan
control turns the blower off. The addition of zoning has not
affected normal fan operation.
INSTALLATION
DUCT LAYOUT
This illustration shows a typical layout for a zoned warm
air system using Zone-Air Controls.
NOTE
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 installation on duct work to each zone. Carefully locate and
mark center line on each side of duct.
2. Mark location for 1⁄2” hole. Also mark locations for holes
to attach bearing plate by measuring 15⁄16” from center
of 1⁄2” 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 1⁄2”
hole.
Bypass Duct
Return Duct
#10 Sheet
Metal Screws
1
⁄2” Dia. Hole
BypassDamper
Parts Group
133-0010
Bearing
Plate
15
⁄16”
Outlet Zone 1
Outlet
Zone 2
Supply Duct
Outlet
Zone 3
Zone 3
Zone 1
DAMPER
MOTORS
Zone 4
Duct Layout For
4 Zone Warm Air System
Point “X”
(locate exactly
opposite
Centerlines
of Duct
Zone 2
Outlet
Zone 4
1
⁄2” hole)
2
Loading...