Programmable Thermostat
Owners Manual
Model: PS3210 Series
FEATURES
Structure of thermostat and explanation of the keypads
We are pleased you have selected our wall thermostat.
Our products are manufactured to high quality standards
and are designed for years of service.
Read This Before Installing Thermostat
OPERATION
YOUR THERMOSTAT FUNCTIONS WITH
Description
Heat Pump (No Auxiliary or Emergency Heat)
Yes
Heat Pump (With Auxiliary or Emergency Heat)
Yes
Standard Heat & Cooling Systems
Yes
Two Stage Heat & One Stage Cool
Yes
Standard Heat Only Systems
Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Standard Central Air Conditioning
Yes
Gas or Oil Heat
Yes
Electric Furnace
Yes
Hydronic (Hot Water) Zone Heat-2 Wires
Yes
Hydronic (Hot Water) Zone Heat-3 Wires
No
This Thermostat will NOT control 110/220 Volt systems.
IMPORTANT
Read the entire installation section of this Owner’s Manual
thoroughly before you begin to install or operate your
thermostat.
REMOVE THE MYLAR LABEL FROM THE LCD DISPLAY
WINDOW.
INSTALLATION
All programming is normally performed at your
thermostats location.
ARMCHAIR PROGRAMMING
You can program your thermostat before installation by
inserting the batteries and following the instructions
starting with the installer/configuration menu. This can be
done while you relax in your favorite chair and is a very
good way to familiarize yourself with all the functions of
your thermostat.
The following time and temperature settings are
pre-programmed into the thermostat:
Temperature in F° (C°)
Program Number Time
Heat
Cool
1
6:00 am
68°F(20°C) 78°F(26°C)
2
8:00 am
60°F(16°C) 85°F(29°C)
3
4:00 pm
68°F(20°C) 78°F(26°C)
4
10:00 pm
60°F(16°C) 82°F(28°C)
by Uni-Line®
COMPRESSOR PROTECTION
The thermostat provides a 4-minute delay after shutting
off the heating or cooling system before it can be restarted.
This feature will prevent damage to your compressor
caused by rapid cycling. Note that this delay also applies
to the heating system control. It does not provide a delay
when there are power outages. You can select the function
on or off at the configuration.
TEMPERATURE RANGE
This thermostat can be programmed between 45°F
and 95°F (7°C and 35°C). However, it will display room
temperatures from 30°F to 99°F (0°C and 37°C). HI will be
displayed if the temperature is higher than 99°F (37°C),
and LO will be displayed if the temperature is lower than
30°F (0°C). This thermostat will automatically shut down in
Heat mode if the temperature rises above 95°F (35°C), and
automatically shut down in Cool mode if the temperature
drops below 45°F (7°C).
NOTE: If the thermostat measures a temperature over
99°F (37°), HI will be displayed on the LCD. If the
temperature is below 32°F (0°), and LO will be displayed
on the LCD.
POWER FAILURE
Whenever the main power is interrupted or fails, the
backup battery power will maintain the current time. This
thermostat also has a permanent memory that will retain
your program setting through power outages.
POWER SUPPLY
The thermostat is powered by 24V AC and has battery
backup.
BATTERY WARNING
Fresh alkaline batteries should provide about one year
of service. When the batteries become weak, BATT will
alternate on the display with the current time. When this
message occurs, install 2 new AA batteries. You have
approximately 1 minute to change the batteries and
keep the thermostat’s clock and program settings. Once
the batteries have become too weak to ensure proper
operation, your system will be turned off, and the display
will be cleared except for BATT flashing on the LCD display.
CAUTION: Once the BATT display occurs, the thermostat
is shut down, and your system will no
longer operate. In this condition, there is no
temperature control. NOTE: The backlight will
not function when the thermostat is in low
battery condition.
NOTE: If you plan to be away from the premises over 30
days, we recommend that you replace the old batteries
with new alkaline batteries prior to leaving.
INSTALLATION
What You Need:
This thermostat includes two #8 slotted screws and two
wall anchors for mounting. To install your thermostat, you
should have the following tools and materials.
• Slotted screwdriver(s)
• Small Phillips screwdriver
• Hammer
• Electric drill and 3/16” bit
• Two1.5V (AA) size alkaline batteries (included)
CAUTION:
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
Before removing wires from old thermostat, label each
wire with the terminal designation it was removed from.
1. Shut off electricity at the main fuse box until
installation is complete. Ensure that electrical power is
disconnected.
2. Remove old thermostat. A standard heat/cool
thermostat consists of three basic parts:
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all screws.
c. The switching subbase, which is removed by
unscrewing the mounting screws that hold it on
the wall or adapter plate.
3. Remove the front cover of the old thermostat. With
wires still attached, remove wallplate from the wall. If
the old thermostat has a wall mounting plate, remove
the thermostat and the wall mounting plate as an
assembly.
4. Identify each wire attached to the old thermostat.
5. Disconnect the wires from the old thermostat one at
a time.
DO NOT LET WIRES FALL BACK INTO THE WALL.
6. Install new thermostat using the following procedures.
WARNING
Do not use on circuits exceeding specified voltage. Higher
voltage will damage control and could cause a shock or fire
hazard. Do not short out terminals on gas valve or primary
control to test. Incorrect wiring will damage thermostat
and could cause personal injury and/or property damage.
Selector Switches
Figure 1. Electric/Gas Switch (Fan Option)
This thermostat is configured from the factory to operate
a heat/cool, fossil fuel (gas, oil, etc.), forced air system.
It is configured correctly for any system that DOES NOT
require the thermostat to energize the fan on a call for
heat. If your system is an electric heat or heat pump
system that requires the thermostat to turn on the fan
on a call for heat, locate the ELEC/GAS switch on the back
of the thermostat (see Figure 1) and switch it to the ELEC
position. This will allow the thermostat to energize the
fan immediately on a call for heat. If you are unsure if the
heating/cooling system requires the thermostat to control
the fan, contact a qualified heating and air conditioning
service person. When the thermostat is configured for heat
pump, the thermostat will always power the circulator
fan on a call for heat in the Heat mode. The ELEC/GAS
switch must be set to match the type of auxiliary heat your
system uses for proper operation in the Emergency mode.
All wiring diagrams are for typical systems only. Refer to
equipment manufacturer’s instructions for specific system
wiring information.
Attach Thermostat Base to Wall
1. Remove the packing material from the thermostat.
Gently pull the cover straight off the base. Forcing or
prying on the thermostat will cause damage to the unit.
2. Connect wires beneath terminal screws on base using
appropriate wiring schematic (see Figures 2 through 6).
3. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
4. Move base out of the way. Drill mounting holes.
5. Fasten base loosely to wall, as shown in Figure 1,
using two mounting screws. Place a level against
bottom of base, adjust until level, and then tighten
screws. (Leveling is for appearance only and will not
affect thermostat operation.) If you are using existing
mounting holes, or if holes drilled are too large and do
not allow you to tighten base snugly, use plastic screw
anchors to secure subbase.
6. Push excess wire into wall and plug hole with a fire
resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.
Figure 2. Thermostat base
Figure 3. Typical wiring diagram for single transformer
heat pump systems
Figure 4. Typical wiring diagram for two transformer heat
pump systems with NO safety circuits
