Troubleshooting Guide - Honeywell CHRONOTHERM T8600D Product Data

T8600D, T8601D AND T8602D CHRONOTHERM
Thermostat Operation
Startup
When power to the thermostat is turned on, a startup and
initialization program begins. The startup occurs only on initial
powerup. After total loss of power for an extended period, the
current time and day may need to be set, but the user
program is held. See Table 11 for the default values.
NOTE: Immediately following initialization, the user can
enter new setpoints to be used in place of the default
values.
Table 11. Default Time, Setpoint and Fan Settings.
Heat
Period Time Setpoint
Wake 6:00 AM 70°F
(21°C)
Leave 8:00 AM 62°F
(16.5°C)
Return 6:00 PM 70°F
(21°C)
Sleep 10:00 PM 62°F
(16.5°C)
Adaptive Intelligent Recovery
Adaptive Intelligent Recovery® ensures that the comfort
setting is achieved at the programmed time regardless of
weather conditions. Conventional recovery, however, starts
recovery at the beginning of the programmed time period and
uses the equipment to achieve the comfort settings as soon
as possible.
IV DELUXE PROGRAMMABLE THERMOSTATS
®
Adaptive Intelligent Recovery® calculates the recovery ramp
based on the number of degrees away from the desired
setpoint, previous equipment performance, and weather
history to initiate recovery at the optimal time to achieve the
comfort setting at the desired time.
Once the recovery ramp is intersected, the setpoint changes
from the setback setpoint to the comfort setpoint. This change
snaps on the equipment and runs the equipment until the
setpoint is reached. If the setpoint is reached too early or too
late, the ramp is adjusted for the next days' recovery.
Cool Fan
Setpoint Setting
78°F Auto
(25.5°C)
85°F Auto
(29.5°C)
78°F Auto
(25.5°C)
82°F Auto
(28°C)
®

TROUBLESHOOTING GUIDE

Feature
Refer to Table 12 for troubleshooting information.
17
70°F
60°F
SLEEP
HEATING MODE
Fig. 14. Temperature change in recovery.
SETPOINT
TEMPERATURE
ACTUAL
TEMPERATURE
WAKE
M6185A
68-0164—1