OPERATION GUIDE 1F70 Series (1F70-1F76)
Automatic Clock Thermostats
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WHITE-RODCERS
( Operator: Save this booklet for futureM^
About Your New Thermostat...
Your new thermostat can save 10 to 16% on annual heating fuel bills, depending on the climate of
the city where you live. With the fuel you save, the thermostat can pay for itself in less than one year
in most locations. Settingtemperaturesloweralso provides additional comfort. Most families enjoy
sleeping in cooler temperatures in both summer and winter. Your thermostat will automatically
maintain comfortable temperatures for you.
NOTE
This operation guide is a universal manual
for all variations of the entire line of mechani
cal clock thermostats. Your thermostat may
not have every feature and may vary slightly.
Please read this manual thoroughly before installing, operating or programming your
thermostat. If you have questions, please write to us at the address shown on the back cover
of this guide.
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In This Guide ...
PARTS OF THE THERMOSTAT..............
OPERATING THE THERMOSTAT
SELECT SETBACK-SETUP TIMES
SET AND START THE TIMER
..........
4 SET THERMOSTAT SWITCHES AND
6 TEMPERATURE LEVERS
Setting the Fan and System Switches
Setting the Temperature Levers
Setting the Program Advance Switch
REPLACING THE BATTERY
Operator: Save this
booklet for future use!
PARTS OF THE THERMOSTAT
Refer to fig. 1 for location of the following parts
of the thermostat (fig. 1 shows heating/cooling
thermostat model with cover removed).
1. Timer dial (rotates counterclockwise to re-
move/replace timer selectors or to set cur
rent time).
2. BLUE timer selectors are used to select the
setback times (the times when the thermo
stat will begin to maintain the lower tem
perature, indicated by the blue (LO) tem
perature lever).
3. RED timer selectors are used to select the
setup times (the times when the thermostat
will begin to maintain the higher tempera
ture, indicated by the red (HI) temperature
lever).
4. Time reference marker indicates current
time.
5. Fan selector switch (heating/cooling model
only). In AUTO position, fan cycles with
heating or cooling system. In ON position,
fan runs continuously, regardless of system
operation.
6. System selector switch (heating/cooling
model only). In COOL position, cooling
system operates. In OFF position, neither
heating nor cooling system operates (but
fan may still run if fan switch is in the ON
position), in HEAT position, heating system
operates.
7. Red (HI) temperature lever indicates the
high temperature to be maintained.
8. Blue (LO) temperature lever indicates the
low temperature to be maintained.
9. Battery (size varies by model; some models
may not have a battery).
10. Anticipator (not adjustable on all models).
2 5 4 9 6
1 3 10 ®
Figure 1. Thermostat with cover removed.
OPERATING THE THERMOSTAT
SELECT SETBACK-SETUP TIMES
The timer has been preset to lower (set back)
the temperature at 11 ;00 PM (with the BLUE
timer selector) and raise (set up) the tempera
ture at 6:00 AM (with the RED timer selector).
Additional sets of selectors are stored inside the
thermostat cover on some models. Use them if
you want more than one setback-setup time
period (you must use the selectors in pairs, one
red and one blue, for proper setback-setup
operation).
Refer to Table 1 for suggestions on how to set
timerselectors and temperature leversforproper
setup/setback operation.
If you want to use only the preset setback-setup
times, skip this section and go to SET AND
START THE TIMER.
NOTE
Depending on local weather conditions and the
temperature you select, it may take several
hours to cool to a desired temperature.
During the air conditioning season, you may
wish to maintain a highertemperature during the
day and a lower temperature during the night.
This may be even more desirable if no one is at
home during the day. In this case, set the red
timer selector to the AM time you want the house
temperature to rise to the high setting. Set the
TABLE 1. Suggested Timer Selector/Temperature Lever Settings for Seasonal Operation
1. Cooler at night and
warmer during day
(normal winter settings)
2. Cooler during day and
warmer at night
(normal summer settings)
3. Constant 24 hour
temperature level
Set BLUE TIMER SELECTOR at time in evening
when lower temperature is desired.
Set BLUE (LO) TEMPERATURE LEVER at the lower
temperature desired.
Set RED TIMER SELECTOR at time in morning
when higher temperature is desired.
Set RED (HI) TEMPERATURE LEVER at the higher
temperature desired.
Set RED TIMER SELECTOR at time in evening
when higher temperature is desired.
Set RED (HI) TEMPERATURE LEVER at the higher
temperature desired.
Set BLUE TIMER SELECTOR at time in morning
when lower temperature is desired.
Set BLUE (LO) TEMPERATURE LEVER at the lower
temperature desired.
Set BLUE and RED TEMPERATURE LEVERS together
at the temperature desired to maintain the same tempera
ture constantly, regardless of timer selector settings.
blue timer selector to the PM time you want the
house temperature to return to the low setting
1. To remove the timer selectors,
turn the dial counterclockwise
until the selectorto be removed
is at the bottom of the dial (see
fig. 2).
2. Hold the timer dial securely.
Carefully snap the timer se
lectors off the dial.
3. Turnthedialcounterclockwise
until the desired setback or
setup time is near the bottom
Figure 2. Removlng/replacing timer selectors.
of the dial.
4. Hold the timer dial and snap the timer selec
tors back on the dial at the desired times for
lowering the temperature (BLUE selector)
or raising the temperature (RED selector).
TIME REFERENCE POST
"BOTTOM OF
TIMER
HOLD EDGE OF DIAL WHEN ADDING/REMOVING SELECTORS.
Be sure you have selected the proper AM or
PM setting.
SET AND START THE TIMER
Afterthe time selectors are in place, follow these
steps to set and start the timer.
1. Turn the dial at least one complete coun
terclockwise revolution past the correct
time of day.
2. Continue to turn the dial counterclockwise
until correct time is ONE HOUR past the
time reference marker (see fig. 3). If you
turn the dial more than two hours past the
correct time, start again at step 1.
3. Turn the dial clockwise to the correct time
(be sure you have selectedthe proper AM or
PM time setting).
TIME REFERENCE MARKER
Figure 3. Setting timer clock.
One some models, the timer is powered by an
alkaline or rechargeable Nicad battery. There is
a battery included in the thermostat models that
require one (see fig. 4). For shipping, a card
board strip has been inserted between the con
tact and the battery. TO START THE TIMER,
YOU MUST FOLLOW THESE STEPS TO RE
MOVE THE CARDBOARD STRIP!
1. Lift and grasp the tab on the cardboard strip.
2. Hold one finger on the battery to hold it in
place.
3. Gently pull the tab straight out. If the timer
does not start, remove the battery and re
insert it (see REPLACING THE BATTERY).
4. Replace the thermostat cover.
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SET THERMOSTAT SWITCHES
AND TEMPERATURE LEVERS
NOTE
Turn on electrical power to system, if you have
not already done so.
Setting the Fan and System Switches
if you have a heating/cooling thermostat, Fig.
5 shows how the heating/cooling system and
fan work when the switches are in various
positions. Use the system switch to select
either heating or cooling, or to turn the heat
ing/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 sys
tem switch position (even if the system switch
is set to OFF, the fan will run If the fan switch
is in the ON position).
■ Shows swKch position
FAN
□ □
AUTO ON
SYSTEM
□ □□
COOL OFF HEAT
□ ■ □
□ □ ■
Figure 5. Subbase Switching
and Thermostat/System Operation.
OPERATiON
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 cydes from fan control on furnace
Heating system cycles from thermostat;
fan runs continuously
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Setting the Temperature Levers
Move the HI temperature setting lever to the
highest temperature desired. Move the LO
temperature setting leverto the lowest tempera
ture desired (seefig. 6). The difference between
the two temperature settings is the amount of
setback or setup that will occur at the times you
have selected with the red and blue timer selec
tors. If the two temperature levers are together,
the thermostat will maintain a constant tempera
ture (no setbacks or setups will occur). For
example, if the two levers are set together at
75°F, the room temperature will be maintained
at 75°, no matter how many timer selectors you
have used.
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Figure 6. Setting temperature levers.
Setting the Program Advance Switch
A CAUTION
The program advance switch cannot be
moved within one hour before or after a
timer selector has changed the setback/
setup time period.
The program advance switch is an extension of
the timer switch, and is located at the top of the
thermostat between the thermostat base and
cover (see fig. 7). The switch allows the opera
tor to manually override the current setback or
setup time period. If the thermostat is in a
setback time period (in the blue position) when
you move the switch, the thermostat will go into
a setup time period. The switch does not cause
a permanent change in timer operation. Normal
operation will resume when the bypassed set
back or setup period has elapsed.
REPLACING THE BATTERY
If the timer slows down or stops, the battery
should be replaced. If your thermostat uses
"AA" alkaline batteries, you should routinely
replace the batteries once a year to ensure
proper coick operation. If your thermostat uses
a Nicad battery, the normal battery life is six
years. The system will continue to operate if the
battery is dead, but the setback/setup feature
Figure 7. Program advance switch.
will not operate. Follow these steps to replace
the battery.
1. Use a small screwdriver to pry the battery
out (see fig. 8).
2. Install a fresh battery, with the positive (+)
end to the right.
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If you have a Nicad battery: if the clock
stops after the fresh battery is installed,
move both temperature levers to the lowest
setting. The automatic recharging circuit is
then connected to the battery. Leave the
temperature levers at the lowest setting for
two to three hours; this will provide sufficient
battery charging to operate timer. The bat
tery will then automatically be recharged
whenever the thermostat is not calling for
heat or cool.
After replacing and charging the battery, let
the system cycle for at least threee hours,
then check to see that the clock is maintain
ing the proper time.
NOTE
If the Nicad battery is installed on a day when
extreme outdoortemperatures are experienced
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and the heating or cooling system operate for
long periods of time, it may take as much as 24
to 48 hours to charge the battery. If you wish to
charge the battery more quickly, move the sys
tem switch to the OFF position. The battery then
will fully charge in approximately 3 hours (how
ever, the system will not operate with the
system switch in the OFF position).
3. After the battery has been replaced, refer to
SET AND START THE TIMER to reset and
Figure 8. Battery replacement.
WARRANTY INFORMATION
THIS WARRANTY STATEMENT SUPERSEDES ALL WARRANTY
STATEMENTS DATED PRIOR TO MARCH 1.1988.
White-Rodgers Division of Emerson Electric Co. ('Selier') warrants that its
products purchased for resale (the ‘Products'^ will be free from defects in
material and workmanship under normal use and service for a period of twelve
(12) rTX>nths from date of installation. Seller's obligation underthis warranty, and
Purchaser's exclusive remedy for the breach thereof, shall be limited to, at
Seller's option. Seller's replacement of any defective Product F.O.8. Seller's
factory, or Seiler's issuance of a credit In the amount of the purchase price of
such Product for resale as desaibed below. Seller shall have the option of
requiring the return of any defective Product, transportation charges prepaid,
before recognizing any claim. This warranty shall not apply to any Product (1 )
which has been repaired or altered outside Seller's factory or by other than Seller
In any manner so as. In Seller's judgement, to affect hs serviceability or proper
operatbn; (2) which has been subjected by persons other than Sel 1er to improper
handling, operation, maintenance, repair or alteration; or (3) which has bean
subjected to misuse, negligmice, or accident.
WARRANTY INFORMATION FOR CONSUMERS
When you purchase a White-Rodgers Division product, It is typically for
replacement of a device which has failed on existing residential or commercial
equipment, or a component of new equipment purchased for modernization.
This warranty extends only to persons or organizations who purchase the
Products for resale. THE FOREGOING CONSTITUTES SELLER'S SOLE
RESPONSIBILITY UNDER THIS WARRANTY, AND PURCHASER'S
EXCLUSIVE REMEDY FOR BREACH THEREOF. EXCEPT AS OTHERWISE
EXPRESSLY SET FORTH IN THIS AGREEMENT, THERE ARE NO OTHER
WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MERCHANTABILITY.
FITNESS FOR A PARTICULAR PURPOSE. OR OTHERWISE. SELLER
SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT. INCIDENTAL OR
CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE SALE. RESALE
OR USE OF THE PRODUCTS.
Complete warranty information and instructions for repladng/ratumlng warranty
products can be found in the White-Rodgers Product Catalog, or by telephoning
or writing to:
White-Rodgers Division
Emerson Electric Co.
9797 Reavte Road
St. Louis. Missouri 63123-5329
(3U) 577-1300
While our warranty does not extend to you, your contractor or dealer is protected
by a one-year product warranty from White-Rodgers. Your supplier can rely on
a nearby White-Rodgers wholesaler for prompt credit or replacement.
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If you need further information on programming or operation, you may
write:
WHITE-RODGERS DIVISION
Emerson Electric Co.
9797 Reavis Road
St. Louis, MO 63123
ATTN: Customer Service
Part No. 37-5028A
BMBR5DN,
9147
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