1
E78-151
5
/2 Day Programmable
White-Rodgers
1
E78-144
™
Non-Programmable
7
0 Series Single Stage Thermostat
1
E78-140
Non-Programmable, Heat only
Programming
Display
Performance
B & O terminals
Choice of 5/2 day programming
Large, easy-to-read thermostat display
Lighted display for easier low-light viewing
(weekday/weekend) or non-programmable
Meets California Building Code, Title 24 (1E78-151)
4
time and 4 temperature settings per
program for heating and cooling
1E78-151)
Energy savings up to 33%
Comfort & Convenience
Electronic temperature accuracy
Adjustable room temperature calibration
Millivolt compatible
Battery-powered thermostat for maximum
(
compatibility (2 “AAA” premium brand batteries included)
Maintains room temperature differential
within +/- 1 degree
Terminal Designations (1E78-151, 1E78-144, F4-1748)
Terminal Designations (1E78-140)
RC
RH
W
Y
G
O
B
RH
W
2
4V Hot
24V Hot
(heating)
Heating
System
Cooling
System
Blower/Fan Energized Energized
in Cooling in Heating
24V Hot
(heating)
Heating
System
(
cooling)
Wall Plate F61-2593
“New Construction Stat”
D78-140
F4-1748 Subbase mounted on 2" x 4" Junction Box (not supplied)
with 1D78-140 “New Construction Stat”
1
F4-1748
1
D78-140
Dimensions
.25"W x 5.3"H x 1.1"D
Thermal Specifications
Accessories
3
Setpoint Temperature Range:
Wall Plate F61-2593 (4.5"W x 6.6"H)
Subbase F4-1748 (3.25"W x 5.3"H)
45° to 90°F (7° to 32°C)
Electrical Specifications
Rated Differential:
0.6° to 1.9°F with adjustable anticipation
“
New Construction Stat” 1D78-140 with
Rating
heat only 65 setpoint (Must be used with
0 to 30 VAC, 50/60 Hz or DC
0.05 to 1.0 Amp (load per terminal)
1.5 Amps maximum load (all terminals combined)
Operating Ambient Temperature:
32° to 105°F (0° to 40°C)
F4-1748 subbase)
Thermostat Guard F29-0143
(For additional guard options refer
to White-Rodgers catalog)
Operating Humidity Range:
9
0% non-condensing maximum
Shipping Temperature Range:
40° to 150°F (-40° to 65°C)
Standard Systems
Single stage gas, oil, electric
For Additional Information
-
Single stage heat pump
Visit www.white-rodgers.com
(1E78-151 and 1E78-144)
Millivolt compatible
St. Louis, Missouri Markham, Ontario
14-553-3600 905-201-4701
www.white-rodgers.com
3
The Emerson logo is a trademark and
a service mark of Emerson Electric Co.
WR-6526-2