White Rodgers 1C20-102 Catalog Page

24 VOLT
MECHANICAL THERMOSTATS – MERCURY FREE
Replaces Hundreds of White-Rodgers and Competitive Models.
Enclosed Snap Action Contacts for Reliable, Economical and
Environmentally Friendly Control
FEATURES
• Mercury free snap-action contacts with dust cover.
• Resistant to vibration.
• Mounts to wall or junction box.
• Built in bimetal thermometer.
• Classic White color.
• Horizontal and Vertical models.
• 24 Volt, 750 mV and 3 - wire zone options. See table below.
1E30N-910
SPECIFICATIONS
Electrical Rating . . . . . . . . . . . . . . . . . . 20-30 VAC, NEC Class II 50/60Hz
Heating . . . . . . . . . . . . . . . . . . . . . . . . 0.15 to 1.2 Amps
Cooling . . . . . . . . . . . . . . . . . . . . . . . . 0.15 to 1.2 Amps
Heat Anticipator . . . . . . . . . . . . . . . . . . Adjustable from 0.15 to 1.2 Amps
Cool Anticipator . . . . . . . . . . . . . . . . . . Fixed
Differential Heat . . . . . . . . . . . . . . . . . . 1°F
Differential Cool . . . . . . . . . . . . . . . . . . 1.5°F
Setpoint Range . . . . . . . . . . . . . . . . . . 50°F to 90°F (10°C to 32°C)
Operating Humidity Range . . . . . . . . . 0-90% non-condensing
Dimensions . . . . . . . . . . . . . . . . . . . . . 41/2”H x 23/4”W x 11/2”D – 1E (Vertical)
41/2”H x 31/4”W x 15/8”D – 1E with Heat /
Cool Subbase
23/4”H 41/2”W x 11/2”D – 1F (Horizontal) 31/4”H x 41/2”W x 15/8”D – 1F with Heat /
Cool Subbase
1F56N-444
PARTS AND ACCESSORIES
 1F56N-361
TECHNICAL HELP
PAGE
165
Configuration/Wiring . . . . . . . . . . . . . . . . . . See page 165
Includes Wallplate
Cool Only or 3-Wire Zone
(No System or Off Switch)
Includes Wallplate Heat Only
(No System or Off Switch)
Includes Switched Subbase
Heat-Off
Includes Switched Subbase
Heat-Off-Cool & Fan Auto-On
Includes Optional F92-0563
Kit for Temperature Locking
or Limiting
3-Wire Zone Valve
Millivolt Compatible
Electric Strip Heat
Options
Heat Pump (No Aux.)
Heat-Cool
Conventional Gas /
Oil / Electric
Heat Only
Cool Only
Applications
Model
Number
1E30N-910
V
3
1E50N-301
V
3
3
3
3
3
3
3
3
3
3
50 to 90°F
R, W
1E56N-444
V
3
3
3
3
3
3
3
3
3
3
3
50 to 90°F
RC, RH, W, Y, O, B, G, A
1F56N-444
H
3
3
3
3
3
3
3
3
3
3
3
3
3
V
3
3
3
 1E30N-311
V
3
3
3
 1E50N-303
V
3 3 3
3
3 3 3 3
 1E56N-361
V
3 3 3
3
3 3 3 3
 1F56N-361
Indicates
Canadian
Model
Number:
call
1-800-305-6953
to order

24
See end of thermostats section for additional parts and accessories
• F61-2301 — Wallplate 55/8”W x 53/4”H with adapter plate to horizontal or vertical junction box
• Thermostat Guards — see pages 34–35
?
Orientation
Vertical, Horizontal
THERMOSTATS
MECHANICAL
THERMOSTATS
3
3
3
3
3
3
Control Range
50 to 90°F
Terminals
R, W
50 to 90°F
RC, RH, W, Y, O, B, G, A
3
50 to 90°F / 10 to 32°C
R, W
3
50 to 90°F / 10 to 32°C
R, W
3
3
3
50 to 90°F / 10 to 32°C
RC, RH, W, Y, O, B, G, A
3
3
3
50 to 90°F / 10 to 32°C
RC, RH, W, Y, O, B, G, A
www.white-rodgers.com
R-4425-24E
24 VOLT
ECONOMY MECHANICAL THERMOSTATS – MERCURY-FREE
Reliable Performance in an Attractive Design
FEATURES
• Rugged snap-action contacts.
• Adjustable heat anticipator.
• Bi-Metal thermometer.
• Heat / Cool model includes switching subbase.
• Heat / Cool model compatible with Electric Heat systems.
1C20-101
SPECIFICATIONS
Anticipation Rating, Heating . . . . .
Anticipation Rating, Cooling . . . . .
Differential, Heating . . . . . . . . . . . .
Differential, Cooling . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . .
Dimensions, Switching Models . . .
Electrical Rating . . . . . . . . . . . . . .
Adjustable from 0.15 to 1.2 Amps
Fixed
2°F (1.1°C)
4°F (2.2°C)
33/4”H x 27/8”W x 11/2”D
33/4”H x 31/8”W x 15/8”D
mV to 30V, 50/60 Hz or DC
PARTS AND ACCESSORIES
See end of thermostats section for additional parts and accessories
• Wallplate F61-2499 — 5 /8”H x 5”W
• Thermostat Guards — see pages 34–35
1
1C26-101
?
PAGE
165
TECHNICAL HELP
Configuration/Wiring . . . . . . . . . . . . . . . . . . See page 165
Model
Typical
Stages
System
Number Application Heat / Cool
Switch
1C20-101 Heat Only ➂
1
None ➀
1C20-102
Heat Only
1
None
1C21-101
Cool Only
1
None
1C26-101 Heat / Cool ➁
1/1
Heat-Off-Cool
➂
Fan
Switch
None
None
None
Auto-On
Contacts
Snap-Action
Snap-Action
Snap-Action
Snap-Action
Anticipation
Heat / Cool
Adjustable
Adjustable
Fixed
Adjustable / Fixed
Range
50-90°F (10-32°C)
50-90°F (10-32°C)
50-90°F (10-32°C)
50-90°F (10-32°C)
Shape
Vertical
Vertical
Vertical
Vertical
Terminals
R, W
R, W
R, Y
RC, RH, W,
Y, O, B, G, A
➀ Lowest temperature setting is “OFF” position
➁ Includes optional “A” terminal connection for Electric Heat systems that require the thermostat to energize the Blower (G terminal) on a call for heat
➂ Includes F61-2499 wall mounting plate to cover marks left by previous thermostat
R-4425-24E
www.white-rodgers.com
25
THERMOSTATS
MECHANICAL
THERMOSTATS