1F58-72
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.
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.
CHECK
LIGHT
AUX
HEAT
EMER
HEAT
DESCRIPTION
|
|
| SYSTEM | EMER. |
FAN |
|
| OFF HEAT | |
ON | COOL |
| ||
AUTO |
|
| ||
|
|
|
|
| 70 | 80 | 90 |
60 |
|
| |
| 90 | 80 | |
50 |
| ||
|
| 70 | |
|
|
| |
|
|
| 60 |
|
|
| 50 |
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.
PRECAUTIONS
!CAUTION
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.
!WARNING
Do not use on circuits exceeding 30 volts. Higher voltage will damage control and could cause shock or fire hazard.
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
SPECIFICATIONS
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 31⁄4 ”, width 53⁄4”, depth 21⁄8”
| PART NO. | |
EMERSON ELECTRIC CO. | Printed in U.S.A. | |
9797 REAVIS ROAD | Replaces | |
ST. LOUIS, MISSOURI |
| 9414 |
