White Rodgers 1E78-140, 1E78-144, 1E78-151 User Manual
Single Stage
Digital 5/2 Day
Programmable and
Non-Programmable
Battery
White-Rodgers
™
70Series
ECONOMY
1E78-144
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ENERGY
SAVER
1E78-151
The Digital Thermostat That Builds
Your Business and Flexes Your Inventory.
The new vertical 70 Series™ thermostats build your new construction business. It's the
first series of flexible thermostats enabling customers to wire and mount one subbase
for use with the temporary new construction thermostat and easily snap on an upgrade
to any 1E78 digital model upon building completion. The vertical 70 Series
design blends narrow width with new home decors. The universal subbase, for use
with all 1E78 models, is designed to mount on a 2" x 4" junction box or directly to the
wall. There is also an optional wallplate for use in retro-fit applications. The 70 Series
thermostats are battery powered, making them easy to install and compatible with
most heating and cooling systems. The vertical 70 Series is perfect for new
construction customers who want a quick and easy transition to job completion.
Programming
Choice of 5/2 day programming
(weekday/weekend) or non-programmable
4 time and 4 temperature settings per program
for heating and cooling (1E78-151)
Energy savings up to 33%
Display
Large, easy-to-read thermostat display
New — Lighted display for easier
low-light viewing
P
T
O
3
3
%
Comfort & Convenience
Electronic temperature accuracy
Adjustable room temperature calibration
Performance
B & O terminals
Meets California Building Code, Title 24
(1E78-151)
Millivolt compatible
Battery-powered thermostat for maximum
compatibility (2 “AAA” Energizer
batteries included)
Maintains room temperature differential
within +/- 1 degree
low-profile
®
1E78-140
ACCURACY
OPTIMUM COMFORT
AND PERFORMANCE
1E78-151
Single Stage
2 Programs
Thermostat
1E78-144
Single Stage
Non-Programmable
Thermostat
1E78-140
Single Stage/Heat
Non-Programmable
Thermostat
Single Stage
Digital 5/2 Day
Programmable and
Non-Programmable
Battery
White-Rodgers
™
70Series
ECONOMY
Dimensions
3.25"W x 5.3"H x 1.1"D
Electrical Specifications
Rating
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)
Standard Systems
Single stage gas, oil, electric
Single stage heat pump
(1E78-151 and 1E78-144)
Millivolt compatible
Thermal Specifications
Setpoint Temperature Range: 45° to 90°F
(7° to 32°C)
Rated Differential: 0.6° to 1.9°F with adjustable
anticipation
Operating Ambient Temperature: 32° to 105°F
(0° to 40°C)
Operating Humidity Range: 90%
non-condensing maximum
Shipping Temperature Range: -4° to 150°F
(-20° to 65°C)
Terminal Designations
1E78-151, 1E78-144 and F4-1748
RC RH YWOGB
“New Construction Stat”
1D78-140
1E78-140
Wall Plate F61-2593
Accessories
Wall Plate F61-2593 (4.5"W x 6.6"H)
Subbase F4-1748 (3.25"W x 5.3"H)
“New Construction Stat” 1D78-140 with
heat only 65° setpoint
Thermostat Guard F29-0143
(For additional guard options refer to White-Rodgers catalog.)
For Additional Information
Visit www.white-rodgers.com
RH W
F4-1748 Subbase mounted on 2" x 4" Junction
Box with 1D78-140 “New Construction Stat”
Application Guide
Series System Programs Power Source
90 - Premium
80 - Standard
70 - Economy
WR-6526
Single Stage
Multi-Stage
Heat Pump
7 day
5/1/1 day
5/2 day
Non-programmable
Power stealing w/battery back-up
Hardwired/battery
Battery
Hardwired
Controlling Indoor Comfort Worldwide
St. Louis, Missouri
314-577-1300
Since 1937
Markham, Ontario
905-201-4701
www.white-rodger s. c om
1E78-151
Single Stage
2 Programs
Thermostat
1E78-144
Single Stage
Non-Programmable
Thermostat
1E78-140
Single Stage/Heat
Non-Programmable
Thermostat
The Emerson logo is a trademark and
a service mark of Emerson Electric Co.
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