MODEL- -21PHP
Universal Application Programmable Thermostat
SETTING TIME AND DAY
At Power- -Up
When power is first applied, AC or HP will appear for 5 seconds to
indicate whether it is setup as an air conditioner (AC) or a heat
pump (HP) model. After this, the time display will flash to tell you
the power has been off.
Setting The Current Time:
1. Press the TEMP/TIME button. SET TIME flashes on the
display.
2. Press the UP or DOWN button until the correct time is dis-
played.
3. To quickly advance to the proper time, press and hold the
UP or DOWN button.
4. When the correct time appears on the display, press the
HOLD/END button.
NOTE: If you choose not to press the HOLD/END button, the
thermostat will automatically exit the time setting mode after 10
seconds.
Setting The Current Day:
1. Press the DAY button to advance to the correct day.
2. When the correct day appears on the display, press the
HOLD/END button.
Homeowner's Guide
Designed and Assembled
in the USA.
A14643
Universal Application
Programmable Thermostat
MANUAL OPERATION
To Operate Manually (Without the Programmed
Comfort Schedule):
Press the HOLD/END button to make the HOLD icon appear.
Then follow the four steps below:
1. To Select the Mode:
Use the MODE button to move between the choices. OFF,
HEAT, AUTO (if enabled), COOL, or EMHT will appear
on the display. EMHT will only appear when setup for heat
pump application.
2. To Select the Fan Operation:
Use the FAN button to move between continuous fan (in-
dicated by the FAN ON icon) and auto fan operation.
3. To Read the Room Temperature:
The large display reads room temperature until a button is
pressed.
4. To Adjust the Setpoint:
In normal operation, the large display shows room temper-
ature. At the first press of the UP or DOWN button, the
large display shows the current setpoint and the SET TEMP
icon is turned on. Further presses of the UP or DOWN but-
ton adjust the setpoint upward or downward. Five seconds
after the last button press, the display returns to the room
temperature and the SET TEMP icon turns off.
PROGRAMMED OPERATION
Introduction
The Universal Application Programmable Thermostat provides
four periods per day (MORN, DAY, EVE, NIGHT) and two
schedules per week (MoTuWeThFr and SaSu). A separate time,
heat setpoint, and cool setpoint can be set for each period and
schedule. Before starting to actually program the thermostat, fill
out Table 1 with the values you wish to program. (The factory
default time and temperature values are already programmed for
you as a starting point and are shown in Table 1.)
The first press of the SET button brings up the programming mode
and places you at morning (MORN) of the MoTuWeThFr
schedule. Successive presses move you between the four daily
periods.
While Programming:
The TEMP/TIME button moves between three selections of SET
TIME, SET TEMP & HEAT, and SET TEMP & COOL. These
three numbers are to be programmed for each of the periods
MORN, DAY, EVE, and NIGHT.
The DAY button moves between the weekdays, (MoTuWeThFr)
and the weekend (SaSu) selections. A different schedule may be set
for the weekdays and the weekend. You may exit programming at
any time by pressing the HOLD/END button.
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