1C20R200 White-Rodgers, 1C20R200 Datasheet - Page 3

• Manufacturer Part Number: 1C20R200
• Description: THERMOSTAT; ECONOMY MODEL 200; MECHANICAL; HEAT ONLY
• Manufacturer: White-Rodgers
• Type: Temperaturer

Specifications of 1C20R200

• Brand/series: Model 200/300
• Display Type: Analog
• Function: Temperature
• Mounting Style: Wall
• Primary Type: Controller
• Range, Measurement: 50 to 90
• Voltage, Operating: 24 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part
• For Use With: HVAC

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5
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Set anticipator to match the setting of your old thermostat you
noted in Step 3, or, the anticipator should be set to match the
current rating stamped on your main heating control. The heat
anticipator is adjustable from 0.15 to 1.2 amps. Adjust the antici-
pator by rotating the contact arm (see fig. 5). The anticipator
setting is indicated by the numbers on the base that the pointer
points to. If you are unsure where to set the anticipator contact the
heater manufacturer for a recommended setting.
Move the pointer counterclockwise to lengthen heating system
cycles; move clockwise to shorten heating cycles. Adjustments
should not be greater than 1/2 marking at a time.
Snap on Cover: Carefully align the cover with the base and snap
the cover onto the base.
Model 200 Heat Only – After power is turned on, slide tempera-
ture lever to desired setting. To turn heat off, slide lever all the way
to the left until it clicks.
Model 300 – This thermostat is easy to operate. Fig. 6 shows how
the heating/cooling system and fan operate when the switches
are in various positions. After power is turned on, use the system
switch to select either heating or cooling, or to turn the heating/
cooling system off. Use the fan switch to control fan operation.
When the fan switch is in the AUTO position, the fan will cycle with
the heating or cooling system (the fan will not run if the system
switch is in the OFF position and the fan switch is in the AUTO
position). When the fan switch is in the ON position, the fan will run
continuously, regardless of system switch position (even if the
system switch is set to OFF, the fan will run if the fan switch is in
the ON position).
ELECTRICAL DATA
Switch Rating ........................ 24 VAC (30 VAC max.)
Heating .................................... 0.15 to 1.2 Amps
Cooling .................................... 0 to 1.5 Amps
Switch Action ........................ Snap Action
Anticipator Rating:
Heating .................................... Adjustable from 0.15 to 1.2 Amps
Cooling .................................... Fixed
SET HEAT ANTICIPATOR
NEW THERMOSTAT OPERATION
SPECIFICATIONS
Typical Gas Valve
24VAC
50/60 Hz
.23 Amps
Typical Oil Primary
www.white-rodgers.com
THERMAL DATA:
Temperature Range .............. 50°F to 90°F (10°C to 32°C)
Operating Humidity Range ... 0 – 90% noncondensing
AUTO ON
Shows switch position
Figure 6. Subbase switching and thermostat/system
FAN
24VAC
50/60 Hz
.43 Amps
For Milivolt Application:
Rotate contact arm
to rest on this rivet.
COOL OFF HEAT
NOTE
SYSTEM
operation (Model 300 Only)
Figure 5. Anticipator adjustment
No heating; no cooling; no fan
No heating; no cooling; fan runs continuously
Cooling system cycles from thermostat; fan runs
continuously
Cooling system and fan cycle from thermostat
Heating system cycles from thermostat; fan cycles
from fan control on furnace
Heating system cycles from thermostat; fan runs
continuously
Rotate contact arm
to adjust heat anticipator
Typical Zone Valve
Arrow points to the
current rating of
the primary coontrol
OPERATION
24VAC
50/60 Hz
.35 Amps