White Rodgers 1F58-72 User Manual

WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
PART NO. 37-4046F
Replaces 37-4046E
9414
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
Operator: Save these instructions for future use!
INSTALLATION INSTRUCTIONS
DESCRIPTION
Printed in U.S.A.
1F58-72
Low Voltage Multi-Stage Heat PumpThermostat
WHITE-RODGERS
This thermostat and subbase combination is designed to
control a heat pump system where automatic changeover
is not required. The reversing valve may be energized
when the SYSTEM switch is moved to the HEAT or COOL
position.
The subbase is equipped with EMER HEAT, AUX HEAT,
and CHECK operation indicator lights.
PRECAUTIONS
If in doubt about whether your wiring is millivolt, line, or low
voltage, have it inspected by a qualified heating and air
conditioning contractor, electrician, or someone familiar
with basic electricity and wiring.
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 compo-
nents could cause the control to malfunction.
CAUTION
!
WARNING
!
To prevent electrical shock and/or equipment
damage, disconnect electric power to system, at
main fuse or circuit breaker box, until installation
is complete.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will burn
out heat anticipator and could cause personal
injury and/or property damage.
Do not use on circuits exceeding 30 volts. Higher
voltage will damage control and could cause
shock or fire hazard.
SPECIFICATIONS
ELECTRICAL DATA
Switch Rating:
24 VAC
Stage 1 heat – 0 to 1.2 amp
Stage 2 heat – 0.15 to 1.2 amp
Cooling – 0 to 1.5 amp
Switch Action:
Stage 1 heat & cool – SPDT
Stage 2 heat – SPST (sealed mercury contacts)
Anticipator Rating:
Stage 1 heat – 24 VAC, fixed
Stage 2 heat – 0.15 to 1.2 amp, adjustable
Cooling – 24 VAC, fixed
Circuit: Manual Changeover – Reversing valve may
be energized when the SYSTEM switch is
switched either the HEAT or COOL position
on the subbase (see wiring diagram).
THERMAL DATA
Temperature Range: 50°F to 90°F (10°C to 32°C)
Rated Differential: Stage 1 heat – 1.5°F
Stage 2 heat – 1°F
Cooling – 1.5°F
DIMENSIONS (INCLUDING SUBBASE):
Height 3
1
⁄4 ”, width 5
3
⁄4”, depth 2
1
⁄8”
50
90
80
70
60
50
SYSTEM
COOL
OFF
HEAT
EMER.
FAN
AUTO
ON
EMER
HEAT
CHECK
LIGHT
60
70
80
90
AUX
HEAT

White Rodgers 1F58-72 Specifications

General

Brand	White Rodgers
Model	1F58-72
Stages	1 Heat / 1 Cool
Display Type	Digital
Voltage	24 VAC
Backlight	Yes
Power Source	Battery
Terminal Designations	W, Y, G
Temperature Range	40°F to 90°F

Summary

Description and Specifications

Description

Details the thermostat's purpose and basic operation for heat pump systems without automatic changeover.

Precautions

Important safety warnings and cautions regarding electrical shock, voltage limits, and handling.

Electrical Data

Specifies switch ratings, switch actions, and anticipator ratings for thermostat operation.

Specifications

Provides technical details on circuit type, temperature range, and rated differential.

Installation Procedures

Select Thermostat Location

Guidelines for choosing an optimal location for accurate temperature sensing and thermostat performance.

Route Wires to Location

Instructions for properly running thermostat wires to the selected installation site, avoiding obstructions.

Attach Subbase to Wall

Steps for mounting the subbase securely and correctly, ensuring it is level.

Attach Thermostat to Subbase

How to connect the thermostat unit to the mounted subbase, ensuring all connections are snug.

Operation and Adjustments

Operation and Maintenance Chart

Details system functions based on fan/system switch positions and component operations.

Adjusting Stage 2 Heat Anticipator

Guide to measuring current draw and setting the adjustable anticipator for optimal heating cycles.

Calibration Adjustment

Procedures for recalibrating the thermostat if actual room temperature differs significantly from the setting.