White Rodgers 7904 Installation And Operation Instructions Manual

WHITE-RODGERS
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.
Your new White-Rodgers 5-Day/2-Day Digital Thermostat uses
the technology of a solid-state microcomputer to provide precise
time/temperature control. This thermostat offers you the flexibil-
ity to design heating and cooling programs that fit your needs.
Features:
• Battery powered (3 "AA" Energizer
included).
• Separate 5-day (weekday) and 2-day (weekend) programming
• Simultaneous heat and cool program storage
• Preprogrammed temperature control
• Four separate time/temperature settings per 24-hour pe-
riod
This thermostat is intended for use with a low voltage system; do
not use this thermostat with a line voltage system. If in doubt
about whether your wiring is millivolt, line, or low voltage, have
it inspected by a qualified heating and air conditioning contractor
or electrician.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and
ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could cause
the control to malfunction.
ELECTRICAL DATA
Electrical Rating:
8 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.5 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45 F to 90 F (7 C to 32 C)
Operating Ambient Temperature Range:
32 F to 105 F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40 F to 150 F
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
• LCD continuously displays set point, and alternately dis-
plays time and room temperature
• Temperature override until next program period
• Manual program override (HOLD temperature)
• User may select either 12- or 24-hour clock display
•
®
alkaline batteries
• Temperature range 45 to 90 F
• Standard five terminals for single or two-transformer sys-
tems
• B and O terminals for single stage heat pumps or damper
operation
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
APPLICATIONS
For use with:
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DO NOT USE WITH:
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Printed in U.S.A.
Model No. 7904
Programmable Electronic Digital Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
F/ C convertibility
CAUTION
!
WARNING
!

SPECIFICATIONS

Standard heat/cool or heat only systems
Electric heat systems
Gas or oil fired systems
Gas systems with intermittent ignition devices (I.I.D.)
and/or vent dampers
Hydronic (hot water or steam) systems
Single-stage heat pump systems
Millivolt systems
Multi-stage systems
Systems exceeding 30 VAC and 1.5 amps
3-wire zoned hydronic heating systems
DESCRIPTION
PRECAUTIONS
PART NO. 37-5599B
Replaces 37-5599A
9731