Radio Thermostat | CT30 | Install guide | Radio Thermostat CT30 Install guide

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Install Guide CT30
designed for
Caution
• Your thermostat is a precise instrument, handle it with care.
• Turn off electricity to the HVAC system before installing or
servicing thermostat or any part of the system.
• Do not turn electricity back on until work is completed.
• Do not short (jumper) across electric terminals at the control
on the furnace or air conditioner to test the system. This may
damage the thermostat.
• All wiring must conform to local codes and ordinances.
• This thermostat is designed for use with 3AA alkaline batteries
and/or 24 volt AC C wire (or a 12-24 AC or DC source) and
millivolt gas systems. Each thermostat relay load should be
limited to 1.0 amp; higher amperage may cause damage to the
thermostat.
Caution
To avoid electrical shock and to
prevent damage to the furnace, air conditioner, and thermostat,
disconnect the power supply before beginning work. This
can be done at the circuit breaker.
top cover
Reset
button
HVAC
selections
switches
Wire
terminals
Save
Energy
button
PM
DAY
AUTO
RADIO
1
Mode
button
F
LINK
Power Grid
status
indicator
Fan
button
TARGET TEMP
COOL
MENU
button
n
PROG
butto
bottom
cover
Touch screen
ENGLISH
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TOOLS
You will need a small Phillips screwdriver and a drill with 3/16-in. (4.8mm) bit for wall mounts.
LOCATION
Replacement installations - mount the CT30 in place of the old thermostat.
A new location will require moving your wiring.
For new installations and for re-locating the CT30 - 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, fireplace; near hot water pipes in a wall; or near a
stove on the other side of a wall.
• Do not locate in unusual cooling conditions, such as: on a wall
Good
separating an unheated room; or in a draft from a stairwell, door,
or window.
• Do not locate in a damp area. This can lead to corrosion that will
shorten thermostat life.
• Do not locate where air circulation is poor, such as: in a corner, an
5ft.
(1.5m)
alcove; behind an open door.
• Do not install the CT30 until all construction and painting has
been completed.
• This thermostat does not require leveling.
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3
REMOVE OLD UNIT
Switch OFF electricity to the HEATING and COOLING systems.
Then follow these steps:
• 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. DO NOT remove wires. Note the letters
printed near the terminals. Attach labels (enclosed) to each wire for identification.
Caution
• Label the wires one at a time. You must label all the wires
before you proceed.
• With all wires labeled, remove them from the old unit.
• Make sure the wires do not fall back inside the wall. You can
wind them around a pencil to keep them from falling.
• Loosen all screws on the old thermostat and remove it from the
wall.
W
Read instructions carefully before removing any wiring from
existing thermostat. 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 and
LABEL THEM by the lettered terminal where they were screwed.
C
G
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PG
4
5
What wires do you have?
Make sure your wires are labeled. This may require you to
find the ‘other end’ connection for each wire on your heating or air conditioning equipment and read
the label there. Refer to the Wire Reference page at end of install section for better understanding of
wire labels from different HVAC system makers.
IMPORTANT: The CT30 runs on 3 AA alkaline batteries and/or the C wire if available. If you do
not have a C wire you can run a new wire from the HVAC or use a standard 12-24V [AC or DC] wall
transformer. A constant power source is required when using a radio module.
IMPORTANT: If you have both RH and RC you need to
remove the jumper wire between these 2 terminals.
Prepare Wires
from HVAC
System
Jumper
wire
2.6"
Y RH RC G A
C
RH
Y
W
Please follow these guidelines for safe and
secure wire connections:
• You will need at least 2.6” of wire for each of your connections to the CT30.
• If you do not have enough wire, splice additional wire to allow enough slack
• Terminals accept wires from 16-22awg.
• Fan out wires below the hole as shown.
• Remove insulation 1/8” from the tip of each wire.
• Take care not to damage the labels for each wire in handling.
Wire Termials
G
Find the step-by-step diagram for your
WIRES
C W RH
m
from
Fro
HVAC
urnace
F
2 Wire
Heat
Go To Page 13
C W RH G
rom
Ffrom
HVAC
Furnace
RH
3 Wire
Heat
C W Y RH G
rom
Ffrom
HVAC
Furnace
4 Wire
Heat/Cool
WIRES
W
WIRES
WIRES
C
C W Y RH RC G
from
m
Fro
HVAC
Furnace
5 Wire
Heat/Cool
WIRES
W RH A
3 Wire
Zoned
Hot Water
from
m
Fro
HVAC
Furnace
W
C
Go
To
A
Page 16
RH
O
Y
RH
or
Go To Page 15
G
W
Y
RH
5 Wire
Heat Pump
w/ Aux Heat
C
B
O
W2
Y
RH G
W Y
RH
RC
G
Go To Page 14
Go To Page 14
C B or O W2 Y RH G
rom
Ffrom
HVAC
Furnace
C
G
WIRES
B
4 Wire Heat Pump
w/o Aux Heat
WIRES
WIRES
C
C
G
RH
Go To Page 13
C B or O Y RH G
rom
Ffrom
HVAC
Furnace
W
C W2 W Y Y2 RH G
from
From
HVAC
Furnace
C
W2
2 stage Cool
2 stage Heat
W
Y
Y2
RH
G
• Select the referenece
page with your wiring
diagram and set-up
information below.
• The C-wire is optional but
prefered for all installations
[shown dotted in diagrams].
Some radio modules will
require the 24vac C-wire
power.
• If your combination of
wires is not above you can
use the wiring table at the
end if the install section to
determine your connections,
contact
support@radiothermostats.com
or 877-602-5028 for help.
or
Go To Page 15
Go To Page 16
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From
• “Fan out” wires as illustrated with CT30 below the wall
opening. As in the example: fan out the wires so that the
C wire is above the C terminal, the W above the W. This
allows the CT30 to fit snug to the wall.
Caution
Do not allow wires to touch each other or parts on thermostat.
C
W
Y
RH
G
C B O W W2 Y Y2 RHRCG A
• Wires will position behind the CT30 and up over the
terminal area.
• Do not bunch wires behind the CT30. Feed any slack
back into the wall opening.
Connect Your Wires
• Connect labeled wires only to a terminal with the same letter label.
• Insert the wire in the terminal well and tighten the screw securely.
NOTE: If you wish you can mount the CT30 to the wall first, and then connect the wires.
• The CT30 can be externally powered with a power source rated from 12V to 24V, AC or DC, at
300ma or greater. If used, connect to the C and RH terminals (no polarity).
Furnace
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Mount the CT30 to wall
Wall
1. Hold the CT30 against the wall, with the wires coming over the
top above terminal block. The CT30 will cover the hole in the wall. CT30
2. Position CT30 for best appearance.
3. Attach the CT30 to the wall with the screws provided.
4. If you are mounting the CT30 to sheet rock or if you are using
the old mounting holes, use the plastic anchors provided.
5. Mark first and drill a 3/16-in.
From
Furnace
(4.8mm) hole for the insert at each
screw location, then mount the unit.
C
MODE
Wires
W RH G
Y
C B O W W2 Y Y2 RHRCG A
Place wires like this
C B O W W2 Y Y2 RHRCG A
FAN
Wall
anchor
Screw to wall
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NORM HP GAS ELEC RESET
HVAC Selection
• Set the HVAC TYPE switch in the NORM position if you have
conventional natural gas, propane, oil, or electric heat. If you
have a HEAT PUMP system set the HVAC TYPE switch to HP.
HVAC
TYPE
HEAT
SOURCE
• Set the HEAT SOURCE switch in the GAS position if you have normal gas or oil heat or if you have
a heat pump with gas or oil auxiliary heat. Put the HEAT SOURCE in the ELEC position if you have
normal electric heat or if you have a heat pump with electric auxiliary heat.
Install 3 AA Batteries
• Install 3 AA alkaline batteries [required] following
the marked polarity in the battery compartment.
Put the lower battery in negative end first against
the spring, then push the positive end in. Then
insert the last 2 batteries as shown.
IMPORTANT: Press the RESET button (under
top cover) to implement the HVAC switch selections.
AA
AA
3
AA
1
2
• With all the wires connected it is time to turn the AC power back on. Do this at the breaker you used
to switch it off. The CT30 will power-up in the control OFF mode. Your CT30 is not configured to
operate your HVAC system yet. You must now configure your thermostat for your HVAC system.
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9
Caution
Special Battery Warning
Always replace the batteries as soon as the “Low Batt” flashes. The thermostat is a battery powered
device, you must be responsible to replace batteries before they run out. Failure to replace batteries can
result in overheating or excessive cooling of your house.
• Even if the “Low Batt” indicator does not flash, you should always replace the batteries at least once a
year. Replacing the batteries also helps to prevent leakage that can corrode and damage the thermostat.
• If you are leaving your home for a month or more, you should replace the batteries as a precaution
against battery failure in your absence.
• Always use new alkaline batteries.
• Failing to replace the batteries, when necessary, could cause the thermostat to lose power or
malfunction. If the thermostat loses power, then the thermostat will not control the temperature which
could result in your HVAC system not functioning as you intended and lead to possible damage from
overheating or excessive cooling.
• If the thermostat batteries fail with the heat OFF, this can result in NO HEAT and possible frozen or
broken pipes and water damage.
• If the thermostat batteries fail with the cool OFF, this can result in NO COOL and could cause possible
damage or excessive temperatures.
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HVAC Setup on Screen
IMPORTANT: Make sure the CT30 is powered up and the
mode switch is set to OFF. HVAC configuration switches must
be set first [pg 8].
• With mode in OFF press MENU and touch HVAC SET UP.
• Use +/- icons to select HVAC SET UP number on screen.
The LCD display will show your selection and indicate the
number of stages you have selected. During setup, 2nd stage
will blink when both heat and cool have 2nd stages.
If you have a Normal HVAC system and
you want fast temperature recovery...
HEAT and COOL
select 1
2 stage HEAT , 1 stage COOL select 2
2 stage HEAT , 2 stage COOL select 3
If you want efficient [but slower] recovery...
2 stage HEAT , 1 stage COOL select 4
2 stage HEAT , 2 stage COOL select 5
HVAC
SETUP
HEAT
2ND
STG
COOL
If you have a HEAT PUMP HVAC
system...
HEAT PUMP with AUX heat select A
(fast recovery)
HEAT PUMP with AUX heat
select b
HEAT PUMP no AUX heat
select C
(efficient recovery)
NOTE: For 2 stage systems your CT30 can recover from a temperature setback in 2 ways: 1] Fast Recovery - This uses your 2nd
stage to bring the house to Target Temperature. This may use slightly more energy. 2] Efficient Recovery -This uses the 2nd stage to
bring your house to w/in a few degrees of the Target and then uses the 1st stage to go the last bit. (See setting the differential in the
operating guide). This is more efficient.
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Test Installation
Follow these procedures to verify you have correctly installed
the CT30.
TO CHECK FAN (If you connected the G wire):
Press the fan button to tur the fan ON. Verify that air is blowing
from the system.
Press the fan button again to return to AUTO.
TO CHECK HEAT
Set the mode to HEAT by pressing the MODE button until HEAT is displayed.
Touch the temperature display to bring up the MANUAL screen.
Touch the + icon and raise the target temp to 90 F; allow the system 2 minutes to respond.
Verify that heat is blowing from the system. Return the Target Temp to a nomal setting.
Return mode to OFF by pressing the mode button.
If you have a heat pump, leave in off for 4 minutes before checking COOL.
o
TO CHECK COOL (do not operate AC if the outside temp is below 65 F)
Set the mode to COOL by pressing the MODE button until COOL is displayed.
Touch the - icon lower cool target temperature to 50 F.
Allow the system 5 minutes to respond.
Verify that cool air is blowing from the system.
Return mode to OFF.
o
o
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Congratulations, you have successfully installed your unit. Please proceed to
the OPERATING Guide to initialize the CT30.
IMPORTANT: If you have labeled and connected your
wires and followed the correct HVAC setup, and your
system still does not operate, contact technical support at
support@radiothermostat.com or call 1-877-602-5028 8amMidnight EST.
STATEMENT OF USE: This thermostat can be used
with 3AA batteries, 24VAC (C wire), 24VAC adapter,
heating and cooling systems and also millivolt heating.
It cannot be used with line voltage systems. This
thermostat is digital and your desired heat or cool
temperatures can easily be set on the large touch
screen with the +/- buttons. A minimum 4 minute off
time protects the compressor from damage. PM
RADIO
1
DAY
AUTO
F
LINK
TARGET TEMP
Mode
button
HEAT
OFF
COOL
COOL
Fan
button
This thermostat runs on 3AA batteries. It can also run on the HVAC systems 24VAC (C wire) or
external 24VAC transformer connected to the C and RH terminals. The 24VAC “C” wire is the other
side of the 24VAC heating transformer and can be found where the other thermostat wires connect at
the wall or at the furnace. Do not use the common or ground side of the line voltage.
Step-by-step wiring diagrams
WIRES
2 Wire Heat GAS MILLIVOLT or 24VAC system
STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power.
STEP 2 - Connect the W wire to the W terminal. This connects the heat.
C
W R
RADIO POWER
STEP 3 - Set HVAC selections switches to NORMAL and GAS
Your heater is now connected to the 3M-30.
Please Go To Page 6
C H B O W2 W Y Y2 RH RC G A
WIRES
3 Wire Heat
STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power .
STEP 2 - Connect the W wire to the W terminal. This connects the heat.
STEP 3 - Connect the G wire to the G terminal on the thermostat. This connects the fan.
STEP 4 - Set HVAC selection switches to NORMAL and:
HVAC SYSTEM
If you have gas or oil heat set the HEAT TYPE to GAS
C
W R G
REMOTE POWER
If you have electric heat, set the HEAT TYPE to ELEC
Your system is now connected to the 3M-30.
Please Go To Page 6
C H B O W2 W Y Y2 RH RC G A
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WIRES
W Y RH G 4 Wire Heat/Cool
STEP 1 - Connect the W wire to the W terminal. This connects the heat.
STEP 2 - Connect the Y wire to the Y terminal. This connects the cooling compressor.
STEP 3 - Connect the RH or R wire to the RH terminal. This connects the power.
STEP 4 - Connect the G wire to the G terminal on the Thermostat. This connects the fan.
HVAC SYSTEM
STEP 5 - Set HVAC selection switches to NORMAL and:
C W Y R G
REMOTE POWER
If you have gas or oil heat, set the HEAT TYPE switch to GAS.
If you have electric heat, set the HEAT TYPE switch to ELEC.
Your HVAC system is now connected to the 3M-30.
Thermostat
Terminals
C H B O W2 W Y Y2 RH RC G A
Please Go To Page 6
WIRES
W Y RH RC G
5 Wire Heat/Cool
STEP 1 - Connect the W wire to the W terminal. This connects the heat.
STEP 2 - Connect the Y wire to the Y terminal. This connects to the cooling compressor.
STEP 3 - Disconnect the jumper between RH and RC terminals.
STEP 4 - Connect the RH wire to the RH and the RC wire to the RC terminals. This connects power.
STEP 5 - Connect the G wire to the G terminal. This connects the fan.
HVAC SYSTEM
STEP 6 - Set HVAC selection switches to NORMAL and:
C W Y RH RC G
If you have gas or oil heat set the HEAT TYPE to GAS.
REMOTE POWER
If you have electric heat, set the HEAT TYPE to ELEC.
Your HVAC system is now connected to the 3M-30.
Please Go To Page 6
Thermostat
Terminals
C H B O W2 W Y Y2 RH RC G A
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4 Wire Heat Pump (heat/cool) without Auxiliary Heat
STEP 1 - Connect O wire to the O or B wire to the B terminal. This connects the change-over valve.
If you have both O and B - connect the O wire to the O terminal.
WARNING: DO NOT connect B to B terminal (see wire reference under Trane for B wire terminal).
STEP 2 - Connect the Y wire to Y terminal. This connects the compressor.
HEAT PUMP SYSTEM
STEP 3 - Connect the R wire to RH. This connects the power.
C
O B Y R G
STEP 4 - Connect the G wire to the G. This connects the fan.
or
STEP 5 - Set HVAC selection switch to HEAT PUMP and set the HEAT
or
TYPE to ELEC.
Your HVAC system is now connected to the 3M-30.
C B O W2 W Y Y2 RH RC G A
Please Go To Page 6
Terminals
POWER
5 Wire Heat Pump w/ Aux Heat
STEP 1 - Connect O wire to the O or B wire to the B terminal. This connects the change-over valve.
If you have both O and B - connect O wire to O terminal.
WARNING: DO NOT connect B to B terminal (see wire reference under Trane for B wire terminal).
STEP 2 - Connect the W2 wire to W2 terminal. This connects the auxiliary heat
STEP 3 - Connect the Y wire to Y terminal. This connects the compressor.
HEAT PUMP SYSTEM
STEP 4 - Connect the R wire to RH terminal. This connects the power.
C O B W2 Y R G
or
STEP 5 - Connect the G wire to G terminal. This connects the fan.
or
STEP 6 - Set HVAC selection switches to heat pump and:
If you have gas or oil aux heat, set the HEAT TYPE to GAS.
C H B O W2 W Y Y2 RH RC G A
Terminals
If you have electric aux heat, set the HEAT TYPE to ELEC.
Your HVAC system is now connected to the 3M-30.
Please Go To Page 6
REMOTE POWER
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PG
2 Stage Heat and 2 stage Cool
STEP 1 - Connect the W wire to the W terminal. This connects the 1st stage of HEAT.
STEP 2 - Connect the W2 wire to the W2 Terminal. This connects the 2nd stage of HEAT.
STEP 3 - Connect the Y wire to the Y terminal. This connects the 1st stage of COOL.
STEP 4 - Connect the Y2 wire to the Y2 terminal. This connects the 2nd stage of COOL.
STEP 5 - Connect the RH or R wire to the RH terminal.This connects
HVAC SYSTEM
the power.
C W2 W Y Y2 RH RC G
STEP 6 - Connect the G wire to the G terminal. This connects the fan.
REMOTE
POWER
STEP 7 - Set HVAC selection switches to NORMAL and:
If you have gas or oil heat set the HEAT TYPE to GAS.
C H B O W2 W Y Y2 RH RC G A
If you have electric heat set the HEAT TYPE to ELEC.
Terminals
Your HVAC system is now connected to the 3M-30.
Please Go To Page 6
WIRES
W RH [A?] 3 Wire Zoned Hot Water
For Solenoid valve or Motor valve connect the wires based on diagrams below to the correct terminal
on the 3M-30. USE ONLY IN HEAT MODE. The third wire on your valve may be called 6, Y, or G (see
Motor Valve
page 18).
W R A
C H B O W2 W Y Y2 RH RC G A
Solenoid Valve
A
R W
C H B O W2 W Y Y2 RH RC G A
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Wire Reference Chart
Possible Wires
R or V or VR RH or 4 RC W W2 W3
Y Y2 G or F C or X H
DH
EX
B O B and O
E L T What they control
RH and RC Single power for HEAT and COOL
RH Power for HEAT (RH not connected to RC jumper clip removed)
RC Power for COOL (RH not connected to RC jumper clip removed)
W Heat control
W2 2nd stage HEAT or heat pump auxiliary heat
W3 3rd stage HEAT or 2nd stage of 2 stage auxiliary heat
Y COOL control or 1st stage compression for heat pump.
Y2 2nd stage COOL control or 2nd stage compression for a heat pump
G FAN control
C 24VAC power (to power thermostat )
NOTE: TRANE uses B for this connection
H External Humidifier
DH External De-Humidifier
EX external fresh air baffle
B Heat pump changeover (cool to heat, powered in heat)
O Heat pump changeover (heat to cool, powered in cool)
IMPORTANT: If there are both B and O wires (Trane pump
products) DO NOT CONNECT B to B terminal, connect B to C
terminal. If not a Trane product tape off B.
n/a Emergency heat (do not connect, tape off)
n/a System monitor (do not connect, tape off)
n/a Outdoor sensor (do not connect, tape off)
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Lennox Heat Pump
V or VR or R M or Y Y or W or W2 F or G R or O X or X2 RH Power for HEAT
Y COOL control
W2 2nd stage HEAT
G Fan control
O
C
Trane Products [American Standard]
B
C 24VAC power (to power thermostat )
W or W1
W2 2nd stage HEAT
X2
Emergency heat (do not connect, tape off)
Zoned Hot Water
2 wire
Your Wires
R W Thermostat Terminal
RH
W
3 Wire
Motor Driven Valves
R or 5 W or 4
Y or G or 6 (the 3rd wire)
Customer support:
RH (power)
W (heat ON)
A (heat OFF)
3 Wire
Solenoid Valves
R W Y or G (the 3rd wire) RH (power)
A (heat ON)
W (heat OFF)
support@radiothermostat.com or call 1-877-602-5028 or www. radiothermostat.com
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Notes on your system
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