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Instructions: To convert the system from PTHP to PTAC, cut the jumper wire located on the
back of the thermostat. Change menu item #20 from default HP to AC.
Note: Menu item #32 will not be displayed in AC mode.
1.) O/B Terminal Switch
The O/B switch on this thermostat is factory set to the B position. This will accommodate
heat pump applications, which require the changeover relay to be energized in Heat. If
the heat pump being installed requires an O terminal to energize the changeover relay in
Cool, the O/B switch must be moved to the O position.
INSTALLER MENU
To access the INSTALLER'S MENU set the system switch to the OFF position and then press
and hold the temperature
the table below. Use the temperature
navigate through menu items. Press
Installer's Menu #
(Hold Menu 3 Seconds)
20
30
32
35
50
65
66
79
81
83
buttons for 3 seconds. The display will show item 20 in
and
or
Description
Algorithm – AC or HP (If HP is
selected, item #32 will be displayed)
Heat Cycle Rate (how often
the heat will turn on)
Aux Cycle Rate (how often the
auxiliary heat will turn on)
Note: Available if HP is selected on
,
item #20
Cool Cycle Rate (how often
the cooling will turn on)
Compressor Lockout
(protects the compressor
from short cycling)
Maximum Heat Limit
(maximum set point for heat mode)
Minimum Cool Limit
(minimum set point for cool mode)
Fahrenheit or Celsius
Temperature Display Adjustment
(adjust the displayed "Room
Temperature")
Continuous Display Light (keep
the backlight always on – "C" wire
required)
and
buttons by pressing them simultaneously to
to change a menu setting.
Default Setting
(flashing icons)
1
Jumper wire
Settings
(Press
or
HP – Heat Pump or
HP
AC – Air Cond.
SLO – slow
SLO
MEd – medium
FAS – fast
SLO – slow
SLO
MEd – medium
FAS – fast
SLO – slow
SLO
MEd – medium
FAS – fast
On – 5 minute delay
OFF
OFF – no delay
85°F
45°F to 99°F
60°F
45°F to 99°F
°F – Fahrenheit
°F
°C – Celsius
0
-5 to +5
On – always on
OFF
OFF – momentarily on for
8 seconds
)
3
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