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Install guide 8025
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HEAT
ROOM TEMP
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Customer Support: 888-515-2585 or
Visit our website www.ritetemp-thermostats.com
1-403-018
ENGLISH
Page 2
Install guide 8025
To avoid electrical shock and to prevent damage to the furnace, air conditioner,
Caution
and thermostat, disconnect the power supply before beginning work.
This can be done at the circuit breaker, or at the appliance.
Tools
1 Location
.
On replacement installations, If possible: mount the new thermostat in
the same place as the old one.
.
On new Installations, follow the guidelines listed below.
.
Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the
floor, and in a room that is used often.
.
Do not install it where there are unusual heating conditions, such as: in
direct sunlight; near a lamp, radio, television, radiator register, or
fireplace; near hot water pipes in a wall; near a stove on the other side
PG 1
of a wall.
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This thermostat does not require leveling.
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Do not locate in unusual cooling conditions, such as: on a wall separating
an unheated room; or in a draft from a stairwell, door, or window.
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Do not locate in a damp area. This can lead to corrosion that will shorten
thermostat life.
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Do not locate where air circulation is poor, such as: in a corner or an
alcove; or behind an open door.
.
Do not install the unit until all construction work and painting has been
completed.
PG 2
You will need a #1 Phillips screwdriver (small) and
a Drill with 3/16-in. (4.8mm) bit for this installation.
Good
5ft.
(1.5m)
C A U T I O N
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Your thermostat is a precise instrument. Please handle
it with care.
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Turn off electricity to the appliance before installing or
servicing thermostat or any part of the system. Do not
turn electricity back on until work is completed.
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Do not short (jumper) across electric terminals at
furnace control or air-conditioner to test the system.
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This will damage the thermostat and void your warranty.
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All wiring must conform to local codes and ordinances.
.
This thermostat is designed for use with 24 volt AC and
millivolt systems. The thermostat should be limited to a
maximum of 1.0 amps. Higher amperage may cause
damage to the thermostat.
Page 3
2 Remove old unit
.
Switch electricity to the furnace and
air conditioner OFF;
IMPORTANT : LABEL ALL WIRES
BEFORE DISCONNECTING THEM!
then proceed with the following steps.
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Remove cover from old thermostat. Most are snap-on
types and simply pull off. Some have locking screws on
the side or front. These must be loosened. Note the
letters printed near the terminals. Attach labels (enclosed)
to each wire for identification.
Read instructions carefully before removing any wiring from existing thermostat.
Caution
.
Label the wires one at a time. You must have all the wires labeled
Wires must be labeled before they are removed. THERE IS NO STANDARD
COLOR CODE. When removing wires from their terminals, ignore the color of the
wires since these may not comply with any standard. Label them.
G
B
before you proceed. With all wires labeled, remove them from the old unit.
.
Make sure the wires do not fall back inside the wall. Wind them around a
pencil to keep them from falling inside the wall.
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Loosen all screws on the old thermostat and remove it from the wall.
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Fill wall opening with non-combustible insulation to prevent drafts.
PG 3
3 Mount the 8025
W
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Separate front from back of unit.
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Hold the back and optional wall plate against the
wall and mark new screw holes on the wall.
After drilling holes, reposition the two units with the
wires coming through the central opening
(below the terminal block). Again, ensure
wires do dot fall back behind wall.
.
Fine position the two parts so that wall plate
covers blemishes from old thermostat.
Using screws provided, anchor back unit
and wall plate to wall.
PG 4
Wall Plate
Thermostat
Base
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ROOM TEMP
Terminal
Block
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Page 4
4 Gas-Electric Selection
REFER to the back of the Control Unit:
PG 5
ï If you have Electric Heat or a Heat
Pump (without auxiliary heat) you
must place the Gas/Electric jumper in
the ELECT position (thermostat
Inside of Unit
SHORT C
OPEN F
controls the Fan).
ï If you have Gas Heat the
Gas/Electric Jumper should be in the
AA
GAS position (furnace controls the Fan ).
Celsius/Fahrenheit
(C/F) jumper
5 Install Batteries
The 8025 requires batteries to operate your
Gas/Electric
jumper
furnace and retain its programming in memory.
Switch MODE switch to OFF and the FAN switch to
AUTO.
ï Insert 2 AA alkaline batteries according to the polarity
noted in the compartment.
ï Press the RESET button to clear transient program
memory. Initially, all LCD segments will go off.
NOTE: Replace the batteries when this LOW battery indicator
appears on the display or once a year. When replacing batteries,
you have approximately 30 seconds before your custom
program is lost.
GAS
ELEC
RESET
Reset Button
AA
AA
OFF
ON
6 Power Options
Please be aware of the following power options.
1) The 8025 can run on batteries only. (2AA Alkaline)
The batteries will last well over 1 year. If the batteries are not replaced the
thermostat will stop working.
2) The 8025 can run on the C wire if available. 24VAC ONLY
As shown in the wiring diagrams, The C wire is the other side of the 24VAC
heating transformer. If the C wire is used, the batteries are then for AC power loss
only and will last much longer. The thermostat will continue working if the batteries
die.
PG 6
Page 5
7 Wire Connections
PG 7
Make sure your wires are labeled . This is necessary to determine which step-by-step wiring
diagram you should use. This may require you to find the 'ot her end' connection for each wire
on your heating or air conditioning equipment and read the l abel there.
If you have a Zoned Heating/Cooling system with multiple the rmostats, please refer to our
website at www.ritetemp-thermostats.com for installation not es or call 1-888-515-2585.
Before you Connect Wires
Please refer back to these guidelines for safe and secure wire connections.
ï
Take care not to damage the labels for each wire in handling.
ï
Strip insulation 3/8 in. (9.5mm) from wire ends.
ï
Connect labeled wires only to a terminal with corresponding letter.
ï
Bend the wire slightly, insert the wire under the screw and
tighten the down onto the wire.
Caution
each other or parts on unit.
Wires must be routed through
the hole in the back plate, below
the terminal block, or they will
hit parts on the cover.
Do not allow
wires to touch
R - Single source power for heat/cool
(R connected to RC and RH using the jumper wire)
RH or R - Heating Power
RC - Cooling Power
W - Heating return
G - Fan return
Y - Compressor return
WIRE LABEL LIST
What Wires Do You Have?
The Wire Label List shows wire
labels used on Ritetemp thermostats.
Please determine what wires you
have and select the correct wiring
diagram to "go to" on pages 8-9.
If you have a HEAT PUMP without
auxiliary heat, select a wiring
diagram on pg 9.
G
From Furnace
R
or
RH
C
W
Go To Page 11
From Furnace
Go To Page 12
R
or
RH
W
C
H - Humidifier (built into the f urnace)
W2 -
2nd stage heat in NORMAL, auxiliary heat in PUMP mode.
A - For 3 wire zoned heating systems
C - AC power for the thermostat if available
O - Damper control (Zoned heating) or heat pump
changeover valve (powered in COOL)
B - Damper control (Zoned heating) or heat pump
changeover valve (powered in HEAT) NOTE: Do not
connect both O and B on a heat pump. Connect O to O &
tape off B.
X - Tape off X
E - Tape off E
From Furnace
And AC unit
RH
C
G
W
Go To Page 13
Y
R
or
From Furnace
And AC unit
C
W
Go To Page 14
Y
RH
RC
G
PG 8
Page 6
From heat pump
w/o Aux heat
C
R
Go To Page 15
Y
O
or
B
G
If you do not find the wiring information for your
system try our website at
www.ritetemp-thermostats.com
or Customer Support at
888-515-2585
B
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7 Wire Connections cont
When you have finished
connecting the wires, close cover
and attach control unit to wall unit. Hook
the top of the body onto the base, swing the body down,
8 Check Unit
and snap the body onto the base.
Follow these procedures to verify you have correctly installed the unit.
To check HEAT mode:
ï Set the mode switch to HEAT. Set the fan switch AUTO.
ï Turn the Control Knob and set the TARGET TEMP to 90o.
ï Wait 5 min.
ï Verify that heat is blowing from the system.
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PG 9
To check COOL mode:
Control Knob
Temperature
Display
ï Set the mode switch to COOL.
ï Turn the Control Knob and set the TARGET
R
TEMP to 5o below the room temperature.
ï Wait 5 min.
ï Verify that cool air is blowing from the system.
To check Fan: (If you connected the G wire)
ï Switch Mode to OFF during fan test.
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HEAT
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ï
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ï
O
Switch
Mode Switch
ï Switch the FAN switch to the ON position. Verify air is blowing from vents.
ï After test, return to Fan switch to AUTO, and Mode to HEAT or COOL
Congratulations, you have successfully installed your unit. Please proceed
to the OPERATING Guide to initialize the new thermostat.
REMEMBER, Mode Switch must be in HEAT or COOL to operate.
PG 10
Fan
Page 7
From Furnace
C
W
R
STEP 1 - Connect the R (or RH) wire
or
RH
to the RH terminal on the thermostat.
This connects the Heater Power to
the thermostat.
2 WIRE Heating
(GAS MILLIVOLT or 24vac)
Thermostat
STEP 2 - Connect the W wire to the W terminal
on the thermostat. This connects the heater control
line to the thermostat.
STEP 3 - Connect the G wire to the G terminal on the
thermostat. This connects the Fan to the thermostat.
Your Heater is now connected to the thermostat.
NOTE: Wires marked with the dotted line are optional.
PG 11
STEP 1 - Connect the R
(or RH) wire to the RH
terminal on the thermostat.
This connects the Heater
Power to the thermostat.
From Furnace
RH
C
G
or R
W
STEP 2 - Connect the W wire to the W terminal
on the thermostat. This connects the heater
control line to the thermostat.
STEP 3 - Connect the G wire to the G terminal on the
thermostat. This connects the Fan to the thermostat.
Your system is now connected to the thermostat.
jumper
wire
R
C
HEAT
Power
FURNACE
W
HEAT
Return To Page 9
3 WIRE
jumper
wire
W G
RH
C
Heat
Power
FURNACE
Heat
Thermostat
FAN
NOTE: Wires marked with the dotted line are optional.
PG 12
Return To Page 9
Page 8
From Furnace
and AC unit
C
RH
or
R
G
W
STEP 1 - Connect the Y wire to
Y
the Y terminal on the thermostat.
This connects to the Cooler
compressor.
STEP 2 - Connect the RH or R
wire to the RH terminal on the
thermostat. This connects the
Heater/Cooler Power.
STEP 3 - Connect the W wire to the W terminal on
C
4 WIRE
jumper
wire
RH
Heat
Power
HVAC SYSTEM
the thermostat. This connects the heater control line.
STEP 4 - Connect the G wire to the G terminal on the Thermostat.
This connects to the Fan.
Your HVAC system is now connected to the thermostat.
Return To Page 9
W
Heat
Y
Cool
Comp
Thermostat
G
FAN
PG 13
From Furnace
and AC unit
C
NOTE: Wires marked with the dotted line are optional.
STEP 1 - Remove the red
Y
RC
G
W
Jumper wire.
RH
STEP 2 - Connect the Y wire to
the Y terminal on the thermostat.
This connects to the Cooler
compressor.
5 WIRE
Remove
jumper
wire
STEP 3 - Connect the RH wire to the RH terminal
on the thermostat. This connects the Heater Power.
STEP 4 - Connect the RC wire to the RC terminal
COOL
Power
C
HEAT
Power
on the thermostat. This connects the Cooling Power.
STEP 5 - Connect the W wire to the W terminal on the thermostat.
This connects to the heater control line.
STEP 6 - Connect the G wire to the G terminal on the Thermostat.
This connects to the Fan.
Your HVAC system is now connected to the thermostat.
PG 14
NOTE: Wires marked with the dotted line are optional.
Thermostat
Y
Cool
Comp
G
FAN
W
RHRC
Heat
HVAC SYSTEM
Return To Page 9
Page 9
From Furnace
and AC unit
R
C
G
O
or
B
STEP 1 - Connect the G wire to
the G terminal on the thermostat.
This connects the Fan.
Y
STEP 2 - Add a jumper wire
between W and Y.
STEP 3 - Connect the Y wire to
the Y terminal on the thermostat.
This connects the Compressor.
STEP 4 - Connect the O or B wire to the O or B
terminal on the thermostat. (If you have both O and
B contact Ritetemp or your local HVAC contractor for
further help). This connects the change-over valve.
STEP 5 - Connect the R wire to the RC terminal.
SINGLE STAGE
HEAT PUMP
jumper
C
24VAC
Power
wire
O or B
R
O or B
Change
Over
jumper
wire
Thermostat
Y
Comp
G
FAN
Single Stage HEAT PUMP
NOTE: Wires marked with
dotted line are optional.
This connects to the 24vac power.
Your HVAC system is now connected to the thermostat.
PG 15
Return To Page 9
8025 Features
The 8025 can be used with most 24 volt; gas, oil or electric heating and air
conditioning systems, single-stage heat pumps, zoned systems, or gas millivolt
heating systems.
It cannot be used with 120 volt heating systems or multistage heat pumps. Ask The
Home Depot for other thermostats to control those
systems.
The 8025 is digital. You can program your desired
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Heat and cool temperature set points directly on the
Large LCD display.
You can easily override the set temperatures.
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Temperature swing adjustment lets you fine-tune
your system for maximum comfort and energy efficiency.
A 4-minute minimum off time in COOL protects your air
conditioning system from being damaged. Two "AA" batteries (not included) are
used to retain your time and temperature programs, and to run the thermostat.
PG 16
Page 10
Calibration
NOTE: Your thermostat comes from the factory calibrated to +/- 1o of actual
temperature. It is an accurate instrument. If you want your thermostat to display
the same temperature as another thermometer in your home, you can adjust its
calibration.
To change the calibration:
.
Access the circuit board inside the thermostat
(rear of front cover).
.
Locate the calibration switch and slide it to
Inside of Unit
the ON position. The current calibration of the
thermostat will appear in the LCD display on
the front.
.
Turn the Control Knob until the desired
SHORT C
OPEN F
GAS
ELEC
RESET
OFF
ON
temperature is reached.
.
Slide the Calibration switch to the OFF
position. The new calibration will be saved.
F/C
jumper
Gas/Electric
jumper
Calibration
switch
PG 17
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