Installation Guide
Installer setup
Follow the procedure below to configure the thermostat to match the installed
heating/cooling system, and customize feature operation as desired.
To begin, press and hold the
buttons until the display changes.
Setup function
Shaded areas below apply only to
1
System type
2
Changeover valve
er valve
er valve
(O/B terminal)
minal
minal)
3
Fan control
control
trol
(heating)
eating)
5
Stage 1 heat cycle
Stage 1 heat cycle
Stage 1 heat cycle
rate (CPH: cycles/hou
rate (CPH: cycles/hou
rate (CPH: cycles/hour)*
6
Stage 2 heat
Stage 2 heat cycle
rate/Auxiliary heat
te/Auxili
cycle rate (CPH)*
7
Auxiliary heat cycle
rate (CPH)*
Only
TH5320U
for 3H/2C Heat Pumps
8
Emergency heat cycle
rate (CPH)*
*[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]
Function
number
Done
Press
Press NEXT to advance to the next function.
and FAN
Press DONE to exit and save settings.
Settings & options (factory default in bold)
factory default
TH5320U/TH5220D
0
1 heat/1 cool conventional
ool conventional
ol c
1
1 heat/1 cool heat pump (no aux. heat)
cool heat pump (no aux. hea
heat pump (no aux. hea
2
Heat only — 2-wire systems, 3-wire zone valves (Series 20), and
nly — 2-wire systems, 3-wire
y — 2-wire systems, 3-w
normally open zone valves
mally open zone valves
mally open zone valv
3
Heat only with fan
eat only with fan
at only with fan
4
Cool only
Cool only
ool
5
2 heat/1 cool heat pump (with aux. heat)
heat/1 cool heat p
6
2 heat/2 cool conventional
heat/2 cool conven
7
7
2 heat/1 cool conve
2 heat/1 cool conventional
8
8
1 heat/2 cool conventional
t/2 cool conv
9
2 heat/2 cool heat pump (no aux. heat) -
2 heat/2 coo
10
10
3 heat/2
3 heat/2 cool heat pump (with aux. heat) -
0
0
Change
Changeover valve (O/B terminal energized in cooling)
hang
1
1
Chan
Changeover valve (O/B terminal energized in heating)
Chan
0
0
0
Gas or oil furnace — equipment controls fan in heating
G
1
1
1
Electric furnace — thermostat controls fan in heating
5
For gas or oil furnaces of less than 90% efficiency
1
For steam or gravity systems
3
For hot water systems & furnaces of over 90% efficiency
9
For electric furnaces
5
For gas or oil furnaces of less than 90% efficiency
1
For steam or gravity systems
3
For hot water systems & furnaces of over 90% efficiency
9
For electric furnaces
5
For gas or oil furnaces of less than 90% efficiency
1
For steam or gravity systems
3
For hot water systems & furnaces of over 90% efficiency
9
For electric furnaces
9
For electric emergency heat
1
For steam or gravity systems
3
For hot water systems & furnaces of over 90% efficiency
5
For gas or oil furnaces of less than 90% efficiency
Setting
1
0
0
Next
Next
or
to change settings.
to change settings.
to change settings.
XT to advance to t
XT to advance to the next
DONE to exit and save set
DONE to exit and save s
or as otherwise noted.
r as otherwise n
TH5320U
only
TH5320U
only