3
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Improper wiring or installation may damage Thermidistat
Control. Check to make sure wiring is correct before
proceeding with installation or turning on power.
CAUTION
!
On power up, all display segments will light for 5 sec. For the
next 5 sec a 2--digit code appears on large display which
identifies Thermidistat Control configuration:
1. AC—for 1--stage air conditioner
2. HP—for 1--stage heat pump
3. A2—for 2--stage air conditioner
4. H2—for 2--stage heat pump
5. dF—for 1--stage Hybrid Heat
6. d2—for 2--stage Hybrid Heat
7. HS—for 1--stage heat pump with Intelligent Heat Staging
(3--stage auxiliary heat with 40FK, FK4C, or FV4A Series
fan coils.)
When this identifier disappears, normal operation begins. The
MODE control should be set to OFF and FAN control to AUTO,
so equipment does not start until further configuration and
checkout is completed.
STEP 4
—
Set Thermidistat Control Configuration
Configuration options, like DIP switch settings, are intended to
be selected at installation and normally are not modified by the
homeowner. These options are not discussed in the homeowner’s
manual and therefore must be made as part of the installation. A
special procedure allows entry into the configuration mode.
While in configuration mode, up to 17 selections can be made. A
description of each selection and how to use the configuration
mode follows.
CONFIGURATION OPTIONS — SUMMARY:
Option 1—Anticipator adjustment
Option 2—Clean filter timer adjustment
Option 3—English/Metric selection
Option 4—Fan (G) ON with W selection
Option 5—Variable--stage blower present selection
Option 6—Cooling lockout below 55
_
selection
Option 7—Variable--stage super dehumidification selection (only
available when variable--stage blower is used)
Option 8—Auxiliary heat lockout temperature setting (only
available when heat pump is used)
Option 9—Intelligent Heat Staging selection (only available
when single--stage heat pump is used)
Option 10—Hybrid Heat selection (only available when heat
pump is used)
Option 11—Balance point setting (only available when
Hybrid Heat is selected)
Option 12—Defrost heat selection (only available when
heat pump is used)
Option 13—Room temperature offset adjustment
Option 14—Heat/cool dead band adjustment
Option 15—Enable Auto mode
Option 16—Enables Super Comfort Heat Mode
Option 17—Non--Programmable selection
TO ENTER CONFIGURATION MODE:
Press and hold FAN button for approximately 10 sec until COOL
set point display indicates a flashing 1. The Thermidistat Control
is now in configuration mode. It will automatically exit this mode
if no button is pressed for 3 minutes. Pressing END button will
exit configuration mode immediately.
WHILE IN CONFIGURATION MODE:
The upper small (COOL set point) display indicates selected
option number and large display indicates selection made within
that option. One of these will be flashing. The up and down
buttons are used both to move between available options and to
make selection for each option. When option number (small
display) is flashing, up and down buttons adjust it, moving
between available option numbers. After desired option number
has been selected, press SET TIME/TEMP button once. The
large display will now flash, indicating that up and down buttons
now control available choices within that option. Each press of
TIME/TEMP button switches between available option (small
display) and available selections within each option (large
display).
CONFIGURATION OPTIONS —SELECTION:
Option 1—Anticipator Adjustment
This adjustment controls sensitivity and cycle rate of Thermidistat
Control. Higher numbers decrease sensitivity and slow cycle rate.
Lower numbers increase sensitivity and cycle rate. However, a
limiting feature will not allow more than 4 cycles per hr,
regardless of setting. Anticipator values can range from 1 to 9.
Factory default is 3. This default selection provides optimum
performance in nearly all installations. Try it first. Do not change
setting unless there is evidence of need to do so. Unlike
conventional anticipators, this setting is not determined by current
draw. There is no need to measure, know, or compensate for
current draw. There is also no droop with this Thermidistat
Control. Regardless of setting and number of stages, both heating
and cooling will control to their respective set points.
TO ADJUST:
1. Enter configuration mode if not already there. See Step 4
“To Enter Configuration Mode.” The upper small (COOL
set point) display will be flashing 1. If not, use up and
down buttons to move it to 1.
2. Press SET TIME/TEMP button once to flash current
selection of 1, 2, 3, 4, 5, 6, 7, 8, or 9 on large display.
Factory default is 3.
3. Use up and down buttons to move between available
choices.
4. Press SET TIME/TEMP button again to flash upper small
display for selection of another option, or press END to
exit configuration mode.
Option 2—Clean Filter Timer
Select hours of blower operation (heating, cooling, or fan) before
CLEAN FILTER icon is displayed. With OFF selected, icon will
never come on, disabling this feature. Time selection can range
from 400 to 3600 hr by selecting numbers 1 through 9. (Time is
400 X number selected.) Factory default is 2 (800 hr).
Recommended selections are: disposable filter—400 to 800 hr,
media filter—1200 to 1600 hr, or electronic air cleaner—1600 to
2400 hr of blower operation.
TO SELECT OR ADJUST:
1. Enter configuration mode if not already there. See Step 4
“To Enter Configuration Mode.” Use up and down
buttons to make small (now flashing) display indicate 2.
2. Press SET TIME/TEMP button once to flash current
selection of OF, 1, 2, 3, 4, 5, 6, 7, 8, or 9 on large display.
Factory default is 2.
3. Use up and down buttons to move between available
choices.
4. Press SET TIME/TEMP button again to flash upper small
display for selection of another option, or press END to
exit configuration mode.
Option 3—English/Metric
Select between Fahrenheit and Celsius operation. Factory default
is Fahrenheit.
TST
AT
