Honeywell T8141A, Руководство пользователя, Страница: 1 / 8

PRODUCT DATA
Copyright © 1996 Honeywell Inc. • • All Rights Reserved
T8141A
Electronic Heat Pump Thermostats
APPLICATION
The T8141A Electronic Heat Pump thermostats provide low
voltage (24 Vac) control of two-stage heating and one-stage
cooling in single speed heat pump systems.
FEATURES
• 24 Vac, 60 Hz direct wired operation.
• Manual heat-cool changeover.
• Two heat, one cool output stages.
• Setpoint temperature range 45
°
F to 90
°
F (7
°
C to 32
°
C)
for heating and 60
°
F to 95
°
F (16
°
C to 35
°
C) for cooling.
• Retains setpoint temperature during power outage.
• Cover thermometer.
• Fan mode selection of AUTO, ON.
• System mode selections of EM. HEAT, HEAT, OFF,
COOL (some models have EM. HEAT, GEO HEAT, OFF,
GEO COOL).
• LED display for second stage AUX. HEAT operation.
• LED display for EM. HEAT selection and external fault
indication (some models have GEO LOCK).
• EM. HEAT LED can also be powered to light when the
heat pump shuts down.
Contents
Application ........................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Setting ................................................................................. 6
Operation ............................................................................ 7
Checkout ............................................................................. 7
Calibration ........................................................................... 7
Troubleshooting .................................................................. 8
68-0169-1