White Rodgers Compact Loader 1F90W 51 User Manual

1F90W-51  
5-Day/2-Day Electronic Digital Thermostat  
WHITE-RODGERS  
INSTALLATION INSTRUCTIONS  
Operator: Save these instructions for future use!  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY  
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE  
PERSONAL INJURY AND/OR PROPERTY DAMAGE.  
DESCRIPTION  
This wall-mounted, low voltage thermostat maintains  
room temperature by controlling the operation of heating  
and cooling systems. The user may program up to four  
time/temperature settings per 24 hour period. The ther-  
mostatstoresindependentheatingandcoolingprograms  
for 5-day (weekday) and 2-day (weekend) periods. The  
thermostat will store both heating and cooling programs  
simultaneously. Three "AA" Energizer® batteries will  
maintain the stored program for approximately one year,  
if incoming power should fail. If power failure is extensive  
and the program is lost, after power restoration, the  
thermostat will automatically maintain a factory  
preprogrammedheatingtemperatureof64°Foracooling  
temperature of 82°F.  
WHITE-RODGERS  
PRECAUTIONS  
Ifindoubtaboutwhetheryourwiringismillivolt,line,orlow Do not exceed the specification ratings.  
voltage, have it inspected by a qualified heating and air  
conditioning contractor, electrician, or someone familiar All wiring must conform to local and national electrical  
with basic electricity and wiring.  
codes and ordinances.  
This control is a precision instrument, and should be  
handled carefully. Rough handling or distorting compo-  
nents could cause the control to malfunction.  
CONTENTS  
Description ......................................................... 1  
Precautions ........................................................ 1  
Specifications..................................................... 2  
Installation.......................................................... 2  
New Installation  
CAUTION  
!
To prevent electrical shock and/or equipment  
damage, disconnect electric power to system, at  
mainfuseorcircuitbreakerbox,untilinstallation  
is complete.  
Select Thermostat Location  
Route Wires to Location  
Replacement Installation  
Remove Old Thermostat  
Attach Subbase to Wall  
WARNING  
!
Attach Thermostat to Subbase  
Operation ........................................................... 6  
System Configuration  
Do not use on circuits exceeding specified volt-  
age. Higher voltage will damage control and  
could cause shock or fire hazard.  
Electric Heat Systems  
Energy Management Recovery (EMR)  
Check Thermostat Operation  
Fan Operation  
Do not short out terminals on gas valve or pri-  
marycontroltotest. Shortorincorrectwiringwill  
burn out thermostat and could cause personal  
injury and/or property damage.  
Heating System  
Cooling System  
Troubleshooting  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
ST. LOUIS, MISSOURI 63123  
PART NO. 37-5089A  
Printed in U.S.A.  
9139  
R
 
TABLE 1. OLD THERMOSTAT IDENTIFICATION  
REPLACEMENT INSTALLATION  
OLD  
OLD THERMOSTAT  
THERMOSTAT  
REMOVE OLD THERMOSTAT  
TERMINAL IDENTIFICATION  
TYPE  
Type  
1. Shut off electricity at the main fuse box until installa-  
tion is complete. Verify power is off with a voltmeter.  
4
RH  
M
W
W
H
RC  
RC  
V
Y
Y
G
G
F
1
Type  
2
2. Remove the front cover of the old thermostat. With  
wires still attached, remove wall plate from the wall.  
Type  
3
3. If the old thermostat has a wall mounting plate,  
removethethermostatandthewallmountingplateas  
an assembly.  
C
Type  
4
R5  
R
4
Y6  
Y
G
G
4. FOR HEATING ONLY SYSTEMS — Disconnect the  
two wires from the old thermostat. Skip steps 5  
through7belowandproceedtoATTACHSUBBASE  
TO WALL.  
Type  
5
W
TABLE 2. WIRE IDENTIFICATION LABELS  
5. FOR HEATING/COOLING SYSTEMS — Before re-  
moving wires from old thermostat, identify the termi-  
nals that have wires attached on the old thermostat.  
ThenuseTable1toidentifythetypeofthermostatyou  
are replacing. For example, if the old thermostat has  
wires attached to terminals R, W, Y, and G, the old  
thermostat is a type 5 (note that the old thermostat  
may not have wires attached to all the terminals  
identified in Table 1).  
Type New Old New Old New Old New Old New Old  
1
RH  
4
W
W
RC RC  
Y
Y
G
G
Type New Old New Old New Old New Old New Old  
RH RH RC RC  
2
W
W
Y
Y
G
G
Type New Old New Old New Old New Old New Old  
RH RC  
3
M
W
H
V
Y
C
G
F
6. Use the self-adhesive labels enclosed with your  
new thermostat to identify the wires attached to  
the old thermostat. The labels correspond to the  
thermostattypenumberyouidentifiedinstep5above  
(seeTable2). Forexample,ifyoudeterminedthatthe  
old thermostat is a type 5, use the labels for the type  
5 thermostat (you may not use all the labels for the  
type number you've identified if the old thermostat did  
not have wires attached to all the terminals).  
Type New Old New Old  
RH R5  
New Old New Old  
Y6  
4
W
4
Y
G
G
Type New Old New Old  
RH  
New Old New Old  
5
R
W
W
Y
Y
G
G
7. Labeleachwireasyoudisconnectit. Thelabelshave  
both the old terminal markings and the new terminal  
identification. Discard any unused labels. PULL AT  
LEAST SIX INCHES OF WIRE OUT OF THE WALL  
WHEN YOU DISCONNECT IT - DO NOT ALLOW  
THE WIRES TO FALL BACK INTO THE WALL.  
PULL STRAIGHT OUT  
ATTACH SUBBASE TO WALL  
Figure 2. Removing thermostat from subbase  
1. Remove the packing material from the thermostat.  
Place the fingers of one hand on the center top and  
bottom portion of the thermostat. Grasp the subbase  
in the other hand on the top and bottom center, and  
gentlypullstraightout(seefig.2). Thethermostathas  
pin and socket connectors. Forcing or prying on the  
thermostat will cause damage to the unit.  
Expansion  
Plugs  
Connect wires under  
terminal screws  
Activity  
Mounting  
Hole  
Light  
W
RC  
G
6-pin Connector  
Mounting  
Hole  
2. Pull wires through opening in the center of the sub-  
base. DO NOT LET WIRES FALL BACK INTO  
WALL.  
Y
RH  
3-pin Connector  
3. Connect wires beneath terminal screws on subbase  
usingappropriatewiringschematic(seefigs.3through  
8).  
4. Place subbase over hole in wall and mark mounting  
hole locations on wall using subbase as a template.  
Pull wires through  
this opening  
(Installation instructions continue on page 5.)  
Figure 3. Subbase  
3
 
NOTE  
CAUTION  
!
All wiring diagrams are for typical systems only. Refer to  
equipment manufacturers' instructions for specific sys-  
tem wiring information.  
To prevent electrical shock and/or equipment  
damage, disconnect electrical power at the main  
fuse box or circuit breaker until installation is  
complete.  
From heating system  
From 24vAC transformer  
THERMOSTAT  
Y
G
W
RC  
RH  
W
RC  
G
SYSTEM  
Heating  
System  
Hot  
Y
24vAC  
120vAC  
RH  
Neutral  
TRANSFORMER  
Thermostat Terminal Connections  
Figure 4. Typical Wiring Diagram for Heating Only, 2-Wire, Single Transformer Systems  
From 24vAC  
transformer  
From heating system  
JUMPER  
WIRE  
THERMOSTAT  
SYSTEM  
W
RC  
G
Y
G
W
RC  
RH  
NOTE  
Fan  
Heating  
System  
RED jumper wire (pro-  
vided with thermostat)  
must be connected be-  
tween thermostat's RH  
and RC terminals for pro-  
per thermostat operation  
with this system.  
Relay  
Hot  
Y
24vAC  
120vAC  
RH  
From fan relay  
Neutral  
CONNECT red jumper  
wire (provided)  
TRANSFORMER  
Thermostat Terminal Connections  
Figure 5. Typical Wiring Diagram for Heat Only, 3-Wire, Single Transformer Systems  
From 24vAC  
transformer  
THERMOSTAT  
Y
G
W
RC  
RH  
W
RC  
G
SYSTEM  
Cooling  
System  
Fan  
Relay  
Hot  
Y
24vAC  
120vAC  
From fan relay  
From cooling system  
RH  
Neutral  
TRANSFORMER  
Thermostat Terminal Connections  
Figure 6. Typical Wiring Diagram for Cool Only, 3-Wire, Single Transformer Systems  
4
 
From heating system  
CONNECT red jumper  
wire (provided)  
JUMPER  
WIRE  
THERMOSTAT  
SYSTEM  
Y
G
W
RC  
RH  
W
RC  
G
W
NOTE  
Cooling  
System  
Fan  
Heating  
System  
RED jumper wire (pro-  
vided with thermostat)  
must be connected be-  
tween thermostat's RH  
and RC terminals for pro-  
per thermostat operation  
with this system.  
Relay  
Hot  
Y
24vAC  
120vAC  
From fan relay  
RH  
From 24vAC  
transformer  
Neutral  
From cooling system  
TRANSFORMER  
Thermostat Terminal Connections  
Figure 7. Typical Wiring Diagram for Heat/Cool, 4-Wire, Single Transformer Systems  
From heating system  
From 24vAC  
cooling transformer  
THERMOSTAT  
Y
G
W
RC  
RH  
SYSTEM  
Hot  
W
RC  
G
24vAC  
Cooling  
System  
Fan  
Heating  
System  
120vAC  
Relay  
Neutral  
HEATING TRANSFORMER  
Y
From fan relay  
RH  
Hot  
From cooling system  
24vAC  
120vAC  
Neutral  
From 24vAC  
heating transformer  
COOLING TRANSFORMER  
Thermostat Terminal Connections  
Figure 8. Typical Wiring Diagram for Heat/Cool, 5-Wire, Two-Transformer System  
5. Move subbase out of the way. Drill mounting holes. To attach thermostat to subbase, line up the plastic snap  
guides at the bottom of the thermostat and the three  
connector pins on the thermostat with the connectors  
near the bottom left section of the subbase (when viewed  
from the front). Gently pivot the thermostat up until the six  
pin connectors and the plastic snaps lock into place (see  
fig. 9). Be gentle when attaching thermostat. If the  
thermostat does not seem to be attaching to the subbase  
easily, make sure that the connector pins and plastic  
snaps are properly aligned, and that excess wire is  
pushed into the wall. Damage to the thermostat may  
occur if force is used.  
6. Fasten subbase loosely to wall, as shown in fig. 3,  
using two mounting screws. Place a level against  
bottom of subbase, adjust until level, and then tighten  
screws. (Leveling is for appearance only and will not  
affect thermostat operation.) If you are using existing  
mounting holes, or if holes drilled are too large and do  
not allow you to tighten subbase snugly, use plastic  
expansion plugs to secure subbase.  
7. Push excess wire into wall and plug hole with a fire-  
resistant material (such as fiberglass insulation) to  
prevent drafts from affecting thermostat operation.  
ATTACH THERMOSTAT TO SUBBASE  
IT IS RECOMMENDED THAT YOU PROGRAM THE  
THERMOSTAT WITH BATTERIES INSTALLED BE-  
FORE ATTACHING ON SUBBASE (see OPERATION  
GUIDE for programming instructions).  
CAUTION  
!
POWER TO THERMOSTAT MUST BE OFF BE-  
FORE ATTACHING THERMOSTAT TO WALL.  
FAILURE TO TURN OFF POWER BEFORE AT-  
TACHING THERMOSTAT MAY CAUSE EQUIP-  
MENT DAMAGE DUE TO RAPID COMPRESSOR  
CYCLING.  
ENGAGE TWO LOWER GUIDES;  
PIVOT UP  
Figure 9. Attaching thermostat to subbase  
5
 
OPERATION  
SYSTEM CONFIGURATION  
Batteries  
6-pin Connector  
ELECTRIC HEAT SYSTEMS  
For central electric heat systems where the blower is  
energized by a separate circuit through the fan relay  
(meaning that the fan turns on immediately on call for  
heat), clipwireW14onthebackofthethermostat(seefig.  
10). If the thermostat is energizing electric heat sequenc-  
ers, DO NOT clip wire W14.  
3-pin Connector  
ENERGY MANAGEMENT RECOVERY  
(EMR)  
Figure 10. Back of Thermostat  
When the EMR feature is activated, the thermostat's  
mocrocomputer automatically calculates the time it will  
take to change the temperature to the next program  
setting. Then the thermostat will activate the heating or  
cooling system to change the temperature so that the  
desired temperature is reached at or near the beginning  
of the next program period (the thermostat's microcom-  
puter calculates 15 minutes for every 2°F temperature  
change). For example, assume that the thermostat is  
programmedtoprovideanovernightheatingtemperature  
of62°F,andduringthenextprogramperiod,programmed  
to begin at 6:00 AM, the programmed temperature is  
70°F. With EMR activated, the thermostat will automati-  
cally activate the heating system at 5:00 AM, so that the  
programmed temperature of 70°F is reached by about  
6:00 AM.  
CHECK THERMOSTAT OPERATION  
If at any time during testing the system does not function  
correctly, disconnectelectricalpoweratfuseboxorcircuit  
breaker and check that all wiring is correct.  
FAN OPERATION  
1. Turn on power to the system. If the heat source has  
a standing pilot, be sure to light it.  
FAN  
ON – AUTO  
2. Press  
untilFANONisdisplayed. Theblower  
should begin to operate (this will work only on sys-  
tems with a G terminal).  
Onthree-wireheatonlysystems,oronfour-wireheat/  
cool systems, if the thermostat display is operating  
FAN  
ON – AUTO  
The thermostat is shipped with the EMR feature inactive,  
which means that the thermostat will activate the heating  
or cooling system at, not before, the beginning of the  
program period (real time).  
properly, but the fan does not operate when  
ispressed,theredjumperwire(providedwiththermo-  
stat) may not be properly installed between the RH  
and RC terminals. Disconnect electrical power to  
system and properly install the jumper wire per the  
appropriate wiring schematic.  
To activate the EMR function, clip wire S3 on the back  
of the thermostat (see fig. 10).  
FAN  
3. Press  
until FAN AUTO is displayed. The  
ON – AUTO  
blower should stop operating within approximately  
one minute.  
HEATING SYSTEM  
SYSTEM  
HEAT-OFF-COOL-AUTO  
1. Press  
untilHEATisdisplayed(itmayalready  
be displayed).  
2. Press  
to adjust thermostat above room tem-  
perature to call for heat. The heating system should  
begin to operate.  
6
 
COOLING SYSTEM  
LOCKOUT BYPASS OPTION  
CAUTION  
FOR QUALIFIED SERVICE TECHNICIANS’ USE  
ONLY. OPERATORS SHOULD NOT USE THIS  
FEATURE DUE TO POSSIBILITY OF EQUIPMENT  
ORPROPERTYDAMAGE,ORPERSONALINJURY.  
!
Topreventcompressorand/orpropertydamage,  
if power to the compressor has been off or  
interrupted for more than 1 hour and the outdoor  
temperature is below 50°F, DO NOT operate the  
system for at least the amount of time the com-  
pressor was off! This will allow the compressor  
heaters to warm the compressor oils to avoid  
damage due to slugging.  
COMPRESSOR SHORT TERM  
CYCLE PROTECTION  
This thermostat has a built-in short term (5-minute)  
time delay. During this 5-minute period, the thermo-  
stat will lock out the compressor to allow head pres-  
sure to stabilize. If you want to override this feature  
ADV  
SYSTEM  
HEAT-OFF-COOL-AUTO  
1. Press  
2. Press  
until COOL is displayed.  
to adjust thermostat below room tem-  
while testing thermostat operation, simply press  
PRGM  
perature to call for cool. The blower should come on  
immediately, followed by cold air circulation. How-  
ever, iftheredLEDonthethermostatfrontisflashing,  
the compressor lockout feature is operating (see  
Lockout Bypass Option to temporarily override the  
compressor lockout feature during testing).  
HOLD  
TEMP  
and  
buttons at the same time at initial startup.  
DO NOT USE THE LOCKOUT BYPASS OPTION  
UNLESSTHECOMPRESSOROILHEATERSHAVE  
BEEN OPERATIONAL FOR 6 HOURS AND THE  
SYSTEM HAS NOT BEEN OPERATIONAL FOR AT  
LEAST 5 MINUTES.  
If the thermostat display is operating properly, but the  
cooling system does not operate when the above  
steps are performed, the red jumper wire (provided  
with thermostat) may not be properly installed be-  
tween the RH and RC terminals. Disconnect electri-  
cal power to system and properly install the jumper  
wire per the appropriate wiring schematic.  
Refer to the OPERATION GUIDE if you need additional  
information on thermostat operation.  
TROUBLESHOOTING  
Refer to the Question & Answer section of the OPERA-  
TION GUIDE for information on troubleshooting the ther-  
mostat.  
7
 
If you need further information about this product, please write to:  
White-Rodgers Division, Emerson Electric Co.  
9797 Reavis Road  
St. Louis, MO 63123  
Attn: Technical Service Department  
WARRANTY INFORMATION  
THISWARRANTYSTATEMENTSUPERSEDESALLWARRANTY  
STATEMENTS DATED PRIOR TO MARCH 1, 1988.  
This warranty extends only to persons or organizations who  
purchase the Products for resale. THE FOREGOING CONSTI-  
TUTES SELLER’S SOLE RESPONSIBILITY UNDER THIS WAR-  
RANTY, 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 MER-  
CHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR  
OTHERWISE. SELLER SHALL NOT BE LIABLE FOR ANY  
SPECIAL,INDIRECT,INCIDENTALORCONSEQUENTIALDAM-  
AGES IN CONNECTION WITH THE SALE, RESALE OR USE OF  
THE PRODUCTS.  
White-Rodgers Division of Emerson Electric Co. (“Seller”) war-  
rants 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) months from date of  
installation. Seller’sobligationunderthiswarranty,andPurchaser’s  
exclusive remedy for the breach thereof, shall be limited to, at  
Seller’s option, Seller’s replacement of any defective Product  
F.O.B.Seller’sfactory,orSeller’sissuanceofacreditintheamount  
of the purchase price of such Product for resale as described  
below. Seller shall have the option of requiring the return of any  
defective Product, transportation charges prepaid, before recog-  
nizing 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 its serviceability or proper operation; (2) which has been  
subjected by persons other than Seller to improper handling,  
operation, maintenance, repair or alteration; or (3) which has been  
subjected to misuse, negligence, or accident.  
Complete warranty information and instructions for replacing/  
returning warranty products can be found in the White-Rodgers  
Product Catalog, or by telephoning or writing to:  
White-Rodgers Division  
Emerson Electric Co.  
9797 Reavis Road  
St. Louis, Missouri 63123-5329  
(314) 577-1300  
WARRANTY INFORMATION FOR CONSUMERS  
When you purchase a White-Rodgers Division product, it is typi-  
cally for replacement of a device which has failed on existing  
residential or commercial equipment, or a component of new  
equipment purchased for modernization.  
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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