7
As part of the Comfort Heat pump system, Configuration Option
No. 9 (Intelligent Heat Staging) should also be set to ON if the
heat pump is single stage and a 3--stage heater is present.
TO SELECT:
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 16.
2. Press SET TIME/TEMP button once to flash large display.
3. Use up and down buttons to move between OF and ON
on large display. Factory default is OF.
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 17—Enable Non--Programmable Operation
This option converts the programmable Thermidistat Control to a
non--programmable control for those users who do not want
programmability. The clock is retained, but the days of the week
and the daily schedules have been eliminated, making it operate
as if HOLD were permanently ON. Some of the buttons (used in
programming only and now not needed) are redefined to simplify
the non--programmable operation. To match these redefined
buttons, a new keypad label, included with the Thermidistat, must
be placed over the original keypad label. Fig. 2 shows both the
original keypad label and the non--programmable keypad label.
When this option is selected, the new keypad label must be
applied over (or in place of) the original. Because these
adhesive--backed keypad labels are not designed to be removed,
this conversion should be considered permanent. Once the
change to nonprogrammable operation is done, a procedure is not
provided to easily change it back. Should this change be needed,
it is best to trade the Thermidistat Control for one which has not
been converted.
Both programmable and non--programmable versions of the
Homeowner’s Manual are available. Be sure to leave only the
correct version of the Homeowner’s Manual with the homeowner.
Once it has been determined that a particular installation is to be
made non--programmable, the only changes required are:
S
Attach non--programmable keypad label over original
programmable one.
S
Attach non--programmable start--up sticker instructions to back
of door.
S
Set Configuration Option No. 17 to ON.
S
Leave non--programmable homeowner’s manual with
homeowner.
PLEASE HEED: Once the new keypad label makes contact, it
will stick firmly in place and adjustments cannot be made.
CAREFULLY locate an edge of the keypad label, making sure its
position and orientation are correct. Then, from the attached edge,
smooth the rest of the keypad label over the original. Make sure
the new keypad label does not interfere with the motion of the
buttons which it surrounds.
To attach the provided non--programmable keypad label,
carefully peel off its backing and apply it over the original keypad
label.
TO SELECT:
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 17.
2. Press SET TIME/TEMP button once to flash large display.
3. Use up and down buttons to move between ON and OF
on large display. Factory default is OF.
4. Press SET TIME/TEMP button again to flash upper small
display for selection of another option, or press END to
exit configuration mode.
REDEFINITION OF BUTTONS
Fig. 2 shows the original (programmable) button labels on the left
and the redefined (non--programmable) buttons on the right. In
the figure, the buttons are numbered for easy reference. They are
not numbered on the actual product. Six of the buttons (numbers
1 through 5 and 9) have been redefined.
Button 3 originally alternated between time, cool set point, and
heat set point with each press. Now, button 1 selects the cool set
point, button 2 selects the heat set point, and button 3 selects
time, now used only to set the clock. Note that the days of the
week are gone.
Button 5 used to alternate between humidify and dehumidify.
Now button 4 selects dehumidify and button 5 selects humidify.
Button 9 now loses the HOLD label, making it END only. This
button is only used to END the humidity screen and the
configuration mode.
These changes both simplify operation for the homeowner and
find use for the buttons which are no longer needed when
programmability is removed.
STEP 5
—
System Start--Up and Checkout
The Thermidistat Control is designed with a built--in installer test
capability. It allows easy operation of equipment without delays
or set point adjustments to force heating or cooling.
To enable installer test mode, move DIP switch No. 4 to ON
position. To access this switch, open case as described in Step 2.
Use the corner of a small screwdriver to slide switch No. 4 to ON
position.
While in installer setup mode, clock will display “InSt,” FAN
button will control fan, and MODE button will control heating
and cooling.
TO TEST FAN:
Fan button switches FAN icon between AUTO and ON. While
ON is displayed, G output will be on, turning fan on. Allow up to
10 sec after button is pressed for fan to turn on and off. On some
fan coils, fan continues to operate for 90 sec after G signal is
removed.
TO TEST COOLING AND DEHUMIDIFICATION:
Press MODE button until COOL icon turns on. Cooling begins
within 10 sec and remains on for 4 minutes. If system is 2--stage,
low speed comes on for first 2 minutes, followed by high speed
for second 2 minutes. At the end of 4--minute run, cooling stops,
and MODE reverts back to OFF. At any time during 4--minute
run time, cooling may be turned off by pressing MODE button
until OFF appears. While cooling is on, successive presses of
HUMIDITY button turn dehumidify output on and off. While
this output is active, “dh” appears in cool set point display.
Equipment outputs for different equipment types are listed in
Table 2.
TO TEST PRIMARY HEATING AND HUMIDIFICATION:
Press MODE button until HEAT icon turns on. Primary heating
begins within 10 sec and remains on for 4 minutes. This will be
furnace or electric heat in AC system and heat pump heating in
heat pump system. If system has 2 stages of primary heat, first
stage will be on for 2 minutes followed by second stage for 2
minutes. At the end of 4--minute run, heating stops, and MODE
reverts back to OFF. At any time during 4--minute run time,
heating may be turned off by pressing MODE button until OFF
appears. While heating is on, successive presses of HUMIDITY
button turn humidify output on and off. While this output is
active, “hu” appears in heat set point display. Equipment outputs
for different equipment types are listed in Table 2.
TST
AT
