Carrier TP-NRH-B Instruction manual

TP ---PRH---A, ---B, TP ---NRH---A, ---B
Performance™ Series
Edger Thermidistat™ Control
Installation Instructions
A07049
Programmable Control
A07048
Non-- Programmable Control
Designed and Assembled
in the USA.
NOTE: Read the entire instruction manual before starting the installation.
US patents: US7287709 B2, US20080147242 A1, USD582800 SI, US20060165149 A1,
US6956463 B2.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SYSTEM START--UP AND CHECKOUT . . . . . . . . . . . . . . . . . . . . . . 45
OPERATIONAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
THERMIDISTAT CONTROL CONFIGURATION RECORD . . . . . . . 84
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all local electrical
codes during installation. All wiring must conform to local and national electrical
codes. Improper wiring or installation may damage Thermidistat Control.
Recognize safety information. This is the safety-- alert symbol
. When you see
this symbol on the equipment and in the instruction manual, be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING, and CAUTION. These
words are used with the safety-- alert symbol. DANGER identifies the most serious
hazards which will result in severe personal injury or death. WARNING signifies a
hazard which could result in personal injury or death. CAUTION is used to identify
unsafe practices which may result in minor personal injury or product and property
damage. NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
1
INTRODUCTION
Carrier’s 7-- day, 5/2-- day, 1-- day programmable and non-- programmable
Performance Series Thermidistat Control is a wall-- mounted, low-- voltage control
which combines temperature and humidity control in either a single unit or a
two-- piece unit. In two-- piece configuration, the relays are located near the
equipment and a two-- wire connection is used between the Display Module and the
Equipment Control Module. Single-- piece installation requires more wiring and
results in a higher profile. The Edger Thermidistat has no need for batteries to store
user-- configured settings in memory. During power loss its internal memory saves
settings for unlimited time, and the clock continues to run for at least 24 hours. An
extension of Carrier’s proven line of thermostats; it provides separate setpoints for
heating and cooling in addition to humidification and dehumidification.
In the Edge Thermidistat Control programmable configuration, different heating
and cooling setpoints and times are programmable for 4 periods per day or 2
periods per day. Programming can be done for 7 days per week, 5/2 days per week,
or 1 day. The programmable Thermidistat Control can also be user configured as a
non-- programmable Thermidistat Control. When operating as non-- programmable,
the Edge Thermidistat Control will still have both temperature and humidity
control.
The non-- programmable Thermidistat Control features Touch ’N’ Got settings for
quick and easy temperature change without complicated programming schedules.
The non-- programmable Edge Thermidistat Control will still have both temperature
and humidity control. And, its Touch ’N’ Go technology enables the user to switch
between three different user-- configurable settings through intuitive buttons located
just below the display.
2
INSTALLATION CONSIDERATIONS
Power
This control is powered by 24VAC only. It requires 24VAC (Rh and/or Rc and C
terminals) of the low-- voltage transformer to be connected to it for proper operation.
It will not operate without these 2 connections. Rh and Rc are connected via PCB
breakout jumper. See Fig. 1. For applications using two 24VAC transformers, one in
the indoor unit and one in the outdoor unit, connect the common from each to the C
terminal. Connect R from the indoor unit to the Rh terminal. Connect R from the
outdoor unit to the Rc terminal. Then, break jumper on the circuit board. The W and
HUM signals are taken from the Rh power and the G signal is taken from the Rc
power. If Thermidistat Control has been installed in a two-- transformer application
that is later changed to a single-- transformer installation, installer must install a field
supplied jumper between Rc and Rh. Depending on the installation, up to 14 wires
may be required. Installation as two-- piece unit is recommended. Only 2 wires are
required for connection between Display Module and Equipment Control Module.
These two wires (V+ and Vg) do not provide ordinary 24VAC. They carry a
combination of power and communications data that is unique to these products.
3
A07052
Fig. 1 - PCB Breakout Jumper
Models
There are programmable and non-- programmable models for all applications. They
can be configured for AC or HP, 1-- or 2-- speed compressor, and for Hybrid Heatt
installations, allowing it to be used in place of all Carrier thermostats.
Programmable Thermidistat Controls may be configured as non-- programmable if
user desires.
Humidify Equipment and Connections
The humidify output connects directly to 24VAC operated humidifiers. An isolation
relay may be required when using powered humidifiers. No other connection or
interlock is required. Any of several installer-- selectable operating modes are
available.
4
!
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
DO NOT connect furnace HUM terminal directly to Thermidistat
Control HUM terminal. This will bypass furnace safety controls. See
Low Voltage Wiring Diagrams and notes for proper connection.
Dehumidify Equipment and Connections
The dry contact output connects to the dehumidify input on variable-- speed
furnaces and fan coils. Additional dehumidification is done by controlling the
compressor. A variety of operating modes are available. The dry contact must be
configured for dehumidification in setup Option 19. See Wiring Diagrams for more
information.
Outdoor Temperature Sensor (TSTATCCSEN01--B)
Outdoor air temperature sensor is included in the box with the Thermidistat Control.
Optimum performance is obtained when an outdoor temperature sensor is used with
the Thermidistat Control. Plan installation so that 2 wires can be run from
Equipment Control Module to an outdoor location, preferably on the north side of
the house or refer to Installation Instructions included with the outdoor temperature
sensor for simplified connection. Sensor can be mounted to outdoor unit and
existing control wires may be used for its connection. Details are provided in sensor
instructions.
5
Remote Indoor Temperature Sensor
A remote temperature sensor may be used with the programmable model, where it
is desirable to install the Thermidistat Control in a limited access location while
measuring the temperature in the living space. The remote room sensor may be
used as a stand alone or average with local sensor.
Two--Piece Thermidistat Control Configuration
The Performance Series Thermidistat Control can be installed in one of two
configurations. The control may be installed as a single-- piece Thermidistat Control
or it may be split into two pieces and mounted in separate locations. As a
single-- piece unit, all required wiring must be brought to the Equipment Control
Module for connection to the terminal strip. In two-- piece configuration, the Display
Module can be mounted in the living space while the Equipment Control Module
may be mounted near the indoor furnace or fan coil. Connection from the Display
Module to the Equipment Control Module requires only two wires. All other control
wires are connected to the Equipment Control Module from the HVAC equipment.
This configuration results in a slimmer display and locates the Equipment Control
Module containing the switching relays away from the main living space where
relay clicking will not be heard.
The model numbers on the Display Module and the Equipment Control Module
(ECM) must match or unpredictable results may occur.
Two-- wire pigtail replacement part number is TX-- 2WR05.
Wiring
For all wiring applications, use 22 AWG or larger wire. Continuous wire lengths
over 100 ft. (30.5 m) should use 20 AWG or larger. Wire lengths are not to exceed
250 ft. (76 m) per run.
6
INSTALLATION
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow the recommended wiring practices could result in
damage to the wall control and personal property.
Improper wiring or installation may damage Thermidistat Control.
Check to make sure wiring is correct before proceeding with
installation or turning on power.
Installation Notes:
S
No part of the control should be installed directly outdoors or in a cabinet outdoors.
S
Never remove the thermostat board from the plastic housing. Doing so
could warp and damage the components on the board.
S
The control assembly should be mounted before wires are attached.
S
During thermostat installation, provide sufficient excess wiring behind
the mounting plate. Coil the wiring, creating a service loop, and place in
mounting box or behind the wall to remove strain against the terminal
strip. See Fig. 2.
7
A13295
Fig. 2 - Coil Excess Wiring
A07685
Fig. 3 - TP-- PRH-- A, - B Carton Contents
8
Carton contains the following components. See Fig. 3 for TP-- PRH-- A, - B or Fig. 4
for TP-- NRH-- A, - B:
1. Display Module
2. Stand-- off for Equipment Control Module
3. Outside Air Temperature Sensor, screws and pigtail
4. Equipment Control Module
A07686
Fig. 4 - TP-- NRH-- A, - B Carton Contents
1.
2.
3.
4.
Display Module
Stand-- off for Equipment Control Module
Outside Air Temperature Sensor, screws and pigtail
Equipment Control Module
Thermidistat Control Location
Thermidistat Control should be mounted:
S
Approximately 5 ft (1.5m) from floor.
9
Close to or in a frequently used room, preferably on an inside partitioning wall.
S
On a section of wall without pipes or duct work.
Thermidistat Control should NOT be mounted:
S
Close to a window, on an outside wall, or next to a door leading to the
outside.
S
Exposed to direct light or heat from a lamp, sun, fireplace, or other temperature-- radiating objects which could cause a false reading.
S
Close to or in direct airflow from supply registers and return-- air registers.
S
In areas with poor air circulation, such as behind a door or in an alcove.
Installer should determine whether control will be installed as single-- piece or
two-- piece. In single-- piece configuration, as many as 14 wires may need to run to
wall mounting location for connection to the control. In two-- piece configuration,
the Display Module and Equipment Control Module are connected by two wires.
S
Install Thermidistat Control
!
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing Thermidistat Control, turn off all power to
equipment. There may be more than 1 power disconnect.
10
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Improper wiring or installation may damage Thermidistat Control.
Check to make sure wiring is correct before proceeding with
installation or turning on power.
1. Turn off all power to equipment.
2. If an existing Thermidistat Control or thermostat is being replaced:
a. Remove existing control from wall.
b. Disconnect wires from existing thermostat, 1 at a time.
c. As each wire is disconnected, record wire color and terminal marking.
d. New or additional wires may be needed to accommodate added humidity outputs.
e. Discard or recycle old control.
11
!
CAUTION
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental damage.
Mercury is a hazardous waste. Federal regulations require that
Mercury be disposed of properly.
Two--Piece Installation
The following steps should be followed for the installation of the two-- piece
configuration.
NOTE: The 2-- wire pigtail is not intended to support the weight of the Display
Module. Do not hang the Display Module from the Equipment Control Module
screw terminals.
1. Remove mounting plate from back of Display Module by pressing the two
tabs on the bottom edge and pulling away. See Fig. 5 and 6.
12
A07225
Fig. 5 - Press Tabs to Remove Backplate
A07226
Fig. 6 - Take Apart
13
2. Route wires through large hole in mounting base. Level mounting base
against wall (for aesthetic value only—Display Module need not be leveled
for proper operation) and mark wall through 4 mounting holes. To avoid
unintended bending of wall plate plastic, use all 4 screws and anchors. See
Fig. 7.
A07165
Fig. 7 - Backplate Mounting
3. Drill four 3/16-- in. mounting holes in wall where marked. Thermidistat Control may be mounted to a standard junction box, if desired. Hole pattern on
Thermidistat Control mounting base matches junction box mounting holes.
4. Secure rear plastic mounting base to wall with 4 screws and anchors
provided. To avoid unintended bending of wall plate plastic, use all 4
screws and anchors. Make sure all wires extend through hole in mounting
base.
5. Adjust length and routing of each wire to reach proper connector block and
terminal on mounting base with 1/4-- in. (6 mm) extra wire.
14
6. Match and connect equipment wires to proper terminals of each connector
block, being careful not to over tighten the screws. Correct polarity must be
observed when connecting the two wires from the Equipment Control Module to the Thermidistat Control mounting base. If wires are connected incorrectly, the Display Module will not operate. See Fig. 8, 9 and 10.
A08072
Fig. 8 - Control Module Wiring Guide
S
S
Red is V+
Black is Vg
15
A07166
Fig. 9 - Secure Wires to Terminal Strip
A07167
Fig. 10 - Connect Pigtail Wires to Display Module
16
NOTE: The 2-- wire pigtail is not intended to support the weight of the Display
Module. Do not hang the Display Module from the Equipment Control Module
screw terminals.
S
Red of the pigtail is V+
S
Black of the pigtail is Vg
7. Push any excess wire into wall and against mounting base. Seal hole in wall
to prevent air leaks. Leaks can affect operation and cause incorrect temperature and/or humidity measurement.
8. Make sure to attach 2-- wire pigtail to Display Module mounting base. It is
packed loose in the box from the factory. Then attach 2-- wire pigtail to the
back of the Display Module via 2 pin, keyed connector.
9. Reattach Display Module body to mounting base by first setting on at top of
mounting base and then push bottom corners of Display Module to snap
into place. See Fig. 11.
A07168
Fig. 11 - Attach Display to Backplate
17
10. Find suitable indoor mounting location for Equipment Control Module,
either near or on equipment. See Fig. 12.
IMPORTANT NOTE: Equipment Control Module should not be mounted to
duct work or below any other controls or equipment (i.e. humidistat,
humidifier, etc.).
A07217
Fig. 12 - Equipment Control Module on Equipment
11. Route wires through rear of Equipment Control Module using either a clearance hole or supplied standoff. See Fig. 13.
18
A07227
Fig. 13 - Standoff
NOTE: Standoffs are provided as an aid when installing Equipment Control
Module on inside equipment or a solid wall.
12. Match and connect equipment wires to proper terminals of each connector
block being careful not to over tighten the screws. Correct polarity must be
observed when connecting the two wires from the Equipment Control Module to the Thermidistat Control mounting base. If wires are connected incorrectly, the Display Module will not operate. See Fig. 8, 9 and 10.
13. Snap cover over top of Equipment Control Module. See Fig. 14.
19
A07218
Fig. 14 - Cover on Equipment Control Module
14. Turn on power to equipment. On power up, all display segments will light
for 5 sec. For the next 5 sec a 2-- digit code appears on large display which
identifies Thermidistat Control configuration. Refer to Option 33.
a. AC — 1-- stage air conditioner with furnace or fan coil
b. HP — 1-- stage heat pump with fan coil
c. A2 — 2-- stage air conditioner with furnace or fan coil
d. H2 — 2-- stage heat pump with fan coil
e. hh — Hybrid Heat system with 1-- stage heat pump
f. h2 — Hybrid Heat system with 2-- stage heat pump
g. H
— heating only system
h. C
— cooling only system
20
Single--Piece Installation
The following steps should be followed for the installation of the single-- piece
configuration.
1. Remove cover from Equipment Control Module by pressing the two tabs on
the bottom edge and pulling away. Route wires through large hole in Equipment Control Module. Level Equipment Control Module against wall (for
aesthetic value only - Equipment Control Module need not be leveled for
proper operation) and mark wall through 4 mounting holes.
2. Drill two 3/16-- in. mounting holes in wall where marked. Thermidistat Control may be mounted to a standard junction box if desired. Hole pattern on
Equipment Control Module matches junction box mounting holes.
3. Secure rear plastic Equipment Control Module to wall with 4 screws and
anchors provided. To avoid unintended bending of wall plate plastic, use all
4 screws and anchors. Make sure all wires extend through hole in Equipment Control Module.
4. Adjust length and routing of each wire to reach proper connector block and
terminal on Equipment Control Module with 1/4-- in. (6 mm) extra length.
See Fig. 15.
21
A07219
Fig. 15 - Equipment Control Module
5. Match and connect equipment wires to proper terminals of each connector
block.
6. Push any excess wire into wall and against Equipment Control Module. Seal
hole in wall to prevent air leaks. Leaks can affect operation and cause incorrect temperature and/or humidity measurement.
7. Attach 2-- wire pigtail to Equipment Control Module terminal block (terminals V+ and Vg). Attach 2-- wire pigtail to the back of the Display Module via
2 pin, keyed connector.
8. Reattach Display Module body to Equipment Control Module by first setting on at top and then push bottom corners to snap into place. See Fig. 16.
22
A07220
Fig. 16 - Reattach Display Module
9. Turn on power to equipment. On power up, all display segments will light
for 5 sec. For the next 5 sec a 2-- digit code appears on large display which
identifies Thermidistat Control configuration. Refer to Option 33.
a. AC — 1-- stage air conditioner with furnace or fan coil
b. HP — 1-- stage heat pump with fan coil
c. A2 — 2-- stage air conditioner with furnace or fan coil
d. H2 — 2-- stage heat pump with fan coil
e. hh — Hybrid Heat system with 1-- stage heat pump
f. h2 — Hybrid Heat system with 2-- stage heat pump
g. H
— heating only system
h. C
— cooling only system
23
Set Thermidistat Control Configuration
Configuration options enable the installer to configure the Thermidistat Control for
a particular installation. Most are not presented to the homeowner and therefore
must be properly set by the installer. (Only those marked with an asterisk * below
are available to the homeowner.) The homeowner configurations are described in
the owner’s manual. A special procedure allows entry into the configuration mode.
Selections can be made while in configuration mode. Description of each selection
and how to use the configuration mode follows.
CONFIGURATION OPTIONS - SUMMARY
Option 01 — Equipment Type
Option 02 — Clean Filter Timer Adjustment
Option 03* — Fahrenheit/Centigrade Selection
Option 04 — Fan (G) on with W/W1 Selection
Option 05 — Room Air Temperature Sensing (programmable
models only)
Option 06 — Cooling Lockout Below 55_F/13_C Selection (only
available if outdoor air sensor is present)
Option 07 — Zoning
Option 08 — Auxiliary Heat Lockout Temperature Setting (only
available when heat pump is used and when
outdoor air temperature sensor is present)
Option 09 — Heat Pump Lockout Temperature Balance Point (only available
when outdoor air temperature sensor is present)
Option 10 — Reversing Valve
24
Option 11
Option 12
Option 13
Option 14
Option 15
Option 16
Option 17
Option 18*
Option 19
Option 20
Option 21*
Option 22
Option 23
Option 24*
Option 25*
Option 26
Option 27
Option 28
Option 29
Option 30*
— Adjustable Setpoint Deadband
(not available on heat only and cool only systems)
— Smart Recovery (programmable models only)
— Room Temperature Offset Adjustment
— Humidity Offset Adjustment
— Enable Auto Mode
— Cycles Per Hour
— Time Between Stages
— Backlight Configuration
— Dry Contact
— Outdoor Air Temperature Offset Adjustment
— Keypad Lockout
— High Cool Latch Temperature
— High Heat Latch Temperature
— Programmable/Non-- Programmable
(programmable models only)
— Number of Programmable Periods per Day
(programmable models only)
— Minimum Cooling Setpoint
— Maximum heating Setpoint
— UV Light Reminder
— Humidifier Pad Reminder
— Programmable Fan (programmable models only)
25
Option 31* — Daylight Savings Time Configuration
(programmable models only)
Option 32 — Furnace Heat Staging
Option 33 — Single or Two-- Piece Installation
Option 34 — Hybrid Heat Furnace Latch
Option 40 — Fan Humidify
Option 41 — Variable Speed Blower
Option 42 — Variable Speed Super Dehumidification
Option 43 — Intelligent Heat Staging
Option 44 — Super Comfort Heat
Option 99 — Reset to Factory Defaults
TO ENTER CONFIGURATION MODE
Press and hold FAN button for approximately 10 sec. The Display Module is now in
configuration mode. It will automatically exit this mode if no button is pressed for 3
minutes. Pressing the DONE button will exit configuration mode immediately.
WHILE IN CONFIGURATION MODE
The option number is displayed in the heat setpoint location and the configuration
setting is displayed in the cool setpoint location. On the TP-- PRH-- A, - B
(programmable) model, a box will surround the option number. The mode button is
used to move the box between the two displayed values. The soft keys below the
listed values may also be used to move the box between selected values. The value
inside the box is changed by using the UP/DOWN buttons. On the TP-- NRH-- A, - B
(non-- programmable) model, one of the values will be flashing. The mode button is
used to change which value is flashing or the Home and Sleep buttons may also be
used to select which value to flash. The value that is flashing is changed by using
the UP/DOWN buttons. All changes made are saved at the time of selection and
will be saved in the event of the 3 minute time-- out or when installer exits from
configuration menu.
26
Configuration Options —Selection
Option 01 — Equipment Type
Range: H2, A2, HP, AC, hh, h2, H, C
H2 — operates a two-- speed heat pump with a fan coil
HP — operates a single-- speed heat pump with a fan coil
A2 — operates a two-- speed AC with a fan coil or furnace
AC — operates a single-- speed AC with a fan coil or furnace
hh — operates a single-- speed heat pump with a furnace
h2 — operates a two-- speed heat pump with a furnace
H
— operates a heat-- only system. Furnace or fan coil only;
no outdoor unit.
C
— operates a cool only-- system. Outdoor AC unit with an
indoor fan coil with no strip heaters.
Default is H2.
Option 02 — Clean Filter Timer
Select hours of blower operation (heating, cooling, or fan) before CHECK FILTER
icon is displayed. With OF selected, icon will never come on, disabling this feature.
Time selection can range from 800 to 7200 hr by selecting numbers 1 through 9.
(Time is 800 X number selected.) Default is 4 (3200 hr).
Recommended selections are disposable filter-- 800 to 2400 hr, media filter-- 2400 to
3200 hr, or electronic air cleaner-- 1600 to 2400 hr of blower operation. For higher
efficiency filter, please consult filter’s Installation Instruction for details.
27
Option 03 — Fahrenheit/Centigrade
Select between Fahrenheit (F) and Centigrade (C) operation. Factory default is
Fahrenheit (F).
Option 04 — Fan (G) On With W/W1
This selection determines whether fan (G) output is to be On or OFF when any
W/W1 (furnace or strip heat) output is On. Most furnaces and fan coils manage
their own blowers and do not require separate G signal. For these applications,
select OFF. Some auxiliary heaters require separate G signal to turn on blower. In
this case, select On. Select On for geothermal applications.
Default is OF (off).
Option 05 — Room Air Temperature Sensing (programmable models only)
The remote room sensor may be installed as a single sensor or multiple sensors may
be installed for further averaging functionality. See Fig. 17.
RRS
SRTN
Sensor 1
Sensor 2
Sensor 3
Sensor 4
A09130
Fig. 17 - Remote Room Sensor - Parallel Wiring
28
This selection determines which sensor the control will use for measuring room air
temperature. Room air temperature can be sensed in one of three ways; the local
sensor (L) located on the Display Module, the remote room air sensor (r), or the
average of local and remote sensors (Lr). Settings are L, r, Lr.
Default is L.
Option 06 — Cooling Lockout Below 55_F/13_C
This selection disables cooling when outdoor temperature is below 55_F/13_C. It
requires an outdoor temperature sensor. Setting is not available if valid outdoor
sensor is not connected. Set to OF (off) to allow cooling below 55_F/13_C. Set to
On to prevent cooling below 55_F/13_C.
Factory default is OF (off).
Option 07 — Zoning
This selection should be set to On when the Thermidistat Control is to be used as
part of a zoning system. It is assumed that the zoning equipment will take care of
time guard and cycle timers. The minimum On time is still controlled by the
Thermidistat Control.
Default is OF (off).
Option 08 — Auxiliary Heat Lockout Temperature
This selection is available on heat pump systems with a valid outdoor temperature
sensor connected. Available settings are: Off, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50,
55.
OF (off) - function is disabled. Auxiliary heat is allowed to operate whenever
sufficient demand for heat is available.
5 to 55_F (-- 15 to 13_C) - Outdoor temperature above which the auxiliary heat is
not allowed to operate (unless MODE is set to Emergency Heat). If room
temperature falls below 45_F (7_C), the auxiliary heat will be allowed to turn on
and will continue to run until demand is satisfied.
Default is OF (off).
29
Option 09 — Heat Pump Lockout Temperature Balance Point (only available
when heat pump is used and when outdoor air temperature sensor is present)
This selection is only available on Hybrid Heat systems. A Hybrid Heat system is
selected via the Option 1 Equipment Type configuration. Configurations settings
are: OF (off), 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55.
OF (off) — the heating cycle will always start with heat pump heating.
5 to 55_F (-- 15 to 13_C) — the outdoor temperature below which heat pump
operation is not allowed.
When emergency heat mode is selected, only auxiliary heat will operate.
Default is OF (off).
Option 10 — Reversing Valve
This selection is only available on heat pump systems. “O” terminal can be
configured to be energized in either heating mode or in cooling mode, depending
on heat pump operation. “O” is used to describe a heat pump system that energizes
its reversing valve in cooling. “B” is used to describe a heat pump system that
energized its reversing valve in heating.
H — Reversing valve output (O/W2/B) is energized when HEAT mode is selected.
C — Reversing valve output (O/W2/B) is energized when COOL mode is selected.
Default is C.
30
Option 11 — Deadband Setting Between Heat & Cool
This option is not available on Heat Only and Cool Only systems. The selection
allows the installer to choose how much differential exists between the heating and
cooling setpoints. Allowable selections are 1 thru 6.
Default is 2.
Option 12 — Smart Recovery
Smart Recovery OF (off) means setpoints change precisely at setback recovery
time. Thirty, 60, or 90 selects the number of minutes recovery starts before
programmed recovery time. Recovery takes place smoothly during the selected
recovery time, ending at the recovery time and temperature which is programmed.
Not available with non-- programmable Thermidistat Controls or when Thermidistat
Control is configured as non-- programmable.
Default is 90.
Option 13 — Room Air Temperature Offset Adjust
The number of degrees to be added to the displayed temperature to calibrate or
deliberately miscalibrate the measured room temperature ( - 5 to +5_).
Default is 0.
Option 14 — Humidity Display Offset Adjust
The percentage to be added to the displayed humidity to calibrate or deliberately
miscalibrate the measured room humidity (-- 9% to +9% RH).
Default is 0.
Option 15 — Enable Auto Mode
This selection is not available if the Thermidistat Control is configured as Heat
Only or Cool Only in Option 1. This allows the homeowner to select auto
changeover mode in addition to heat and cool. This allows the Thermidistat Control
31
to automatically change between heating mode and cooling mode when sufficient
demand for heating or cooling exists.
On — Auto mode is available.
OF — Auto mode is not available.
Default is On.
Option 16 — Maximum Cycles Per Hour
This selection limits the number of cycles per hour that the Thermidistat Control
allows the system to operate. Selections are 2, 4, 6.
2 — The heating and cooling outputs will be energized no more than 2 times per
hour. When an output is energized, it will not be energized again for 30 minutes.
4 — The heating and cooling outputs will be energized no more than 4 times per
hour. When an output is energized, it will not be energized again for 15 minutes.
6 — The heating and cooling outputs will be energized no more than 6 times per
hour. When an output is energized, it will not be energized again for 10 minutes.
Default is 4.
Option 17 — Time Between Equipment Stages
This selection is only available for heat pump systems. This determines the
minimum number of minutes of equipment operation on the highest compressor
stage before allowing the transition to auxiliary heat. Available selections are 10,
15, 20, and 25. The time between stages of any individual piece of equipment, such
as low speed and high speed compressor or fan coil stages, will be fixed at 10
minutes.
Default is 15.
32
Option 18 — Backlight Configuration
When OF (off), the backlight will be lit for 10 seconds after a button is pressed.
After 10 seconds of no button presses, the backlight turns off. When On, the
backlight will normally be on and dim in appearance. The backlight brightness
becomes brighter when a button is pressed. After 10 seconds of no button presses,
the backlight will return to the dimmer level until another button press occurs. The
range of brightness is 1 through 5 with 5 being full brightness.
Default is 3.
Option 19 — Dry Contact Configuration (programmable models only)
There are 3 available selections, OF, 1 and 2.
OF — The dry contact is always de-- energized.
1 — The dry contact will be energized for the specified number of minutes per
hour. This selection is programmable by period. When this selection is changed
from OF to 1, the period icons are shown and the minute segments of the clock
display are shown. The triangle icon next to the WAKE period will be on and a
value between 0 and 60 will be shown in the minutes display. See Operational
Information and Wiring Diagrams for further explanation of dry contact
configuration and use. To change the period or minutes, press the soft key below
the period or minutes and then use the UP/DOWN buttons to change to the desired
value.
2 — The dry contact will operate as a DH relay. This relay is reverse logic. When
the humidity level is above the dehumidify setpoint, the dry contact D1-- D2 will be
opened. When the humidity level is below the dehumidify setpoint, D1-- D2 will be
closed. There is a +/-- 2% hysteresis around the dehumidify setpoint to prevent
rapid on/off cycling of the DH output. When configured for dehumidification, the
Rc terminal must be connected to one of the dry contact terminals. This provides
power to energize the dehumidify terminal on the cooling equipment when the dry
contact is closed. See Wiring Diagrams for more information.
Default is OF (off).
33
Option 19 — Dry Contact Configuration (non-- programmable models only)
OF — The dry contact is always de-- energized.
ON — The dry contact will operate as a DH relay. This relay is reverse logic.
When the humidity level is above the dehumidify setpoint, the dry contact D1-- D2
will be opened. When the humidity level is below the dehumidify setpoint, D1-- D2
will be closed. There is a +/-- 2% hysteresis around the dehumidify setpoint to
prevent rapid on/off cycling of the DH output. When configured for
dehumidification, the Rc terminal must be connected to one of the dry contact
terminals. This provides power to energize the dehumidify terminal on the cooling
equipment when the dry contact is closed. See Wiring Diagrams for more
information.
Default is OF (off).
Option 20 — Outdoor Air Temperature Offset Adjustment
This selection allows the calibration, or deliberate miscalibration of the outdoor air
temperature sensor reading. The selection ranges from - 5 to +5_.
Default is 0.
Option 21 — Keypad Lockout (programmable models only)
This selection allows the installer to limit access to the keypad. Selections are OF
(off), 1, 2, 3. These options are independent of Option 24, which allows the
programmable model to be configured as a non-- programmable thermostat.
OF (off) — The user has full access to the keypad.
1 — The user has access to change the setpoints, time of day and calendar.
34
2 — The user has access to change the setpoints only.
3 — The entire keypad is locked. When a button is pressed, the backlight will turn
on but none of the operating parameters will be changed.
When the keypad lock selection is turned on, the padlock icon will be displayed. To
unlock the keypad, press and hold the UP/DOWN buttons simultaneously for five
seconds. When the keypad is unlocked, the padlock icon will turn off. The keypad
will remain unlocked for two minutes after the last button press. After two minutes
with no button presses, the keypad will lock again. The keypad will not lock in the
software configuration mode or in the installer test mode.
Default is OF (off).
Option 21 — Keypad Lockout (non-- programmable models only)
This selection allows the installer to limit access to the keypad. Selections are OF
(off), 1, 2.
OF (off) — The user has full access to the keypad.
1 — The user has access to modify Home, Sleep, Away, and UP/DOWN setpoints.
2 — The entire keypad is locked. When a button is pressed, the backlight will turn
on but none of the operating parameters will be changed.
When the keypad lock selection is turned on, the padlock icon will be displayed. To
unlock the keypad, press and hold the UP/DOWN buttons simultaneously for five
seconds. When the keypad is unlocked, the padlock icon will turn off. The keypad
will remain unlocked for two minutes after the last button press. After two minutes
with no button presses, the keypad will lock again. The keypad will not lock in the
software configuration mode or in the installer test mode.
Default is OF (off).
35
Option 22 — High Cool Latch Temperature (only available if outdoor sensor is
present)
An outdoor sensor is required for high cool latch feature.
This selection is only available when Option 1 is set to H2, A2, or h2 and when
Option 7 (zoning) is set to OF (off). Configuration settings are OF (off), 80, 85, 90,
95, 100, 105, 110, On.
OF (off) — Cooling always starts in low stage (Y1) and stages up to high stage (Y1
and Y/Y2) when demand is sufficient and staging timer constraints have been
satisfied.
80 to 110_F (27 to 43_C) — Outdoor temperature above which both first and
second stages of the compressor are energized to satisfy all cooling demands. When
a cycle starts under a high cool latch, it will finish the cooling cycle on high stage.
If the cooling equipment is energized to satisfy a dehumidify demand only (no
cooling demand), the latch will not be applied.
On — The Y1 and Y/Y2 outputs are simultaneously energized to satisfy all cooling
demands.
Default is OF (off).
Option 23 — High Heat Latch Temperature (only available if outdoor sensor is
present)
This selection is only available when Option 1 is set to H2, or h2 and Option 7
(zoning) is set to OF (off). Configuration settings are OF (off), 20, 25, 30, 35, 40,
45, 50, On.
OF (off) —Heating always starts in low stage (Y1) and stages up to high stage (Y1
and Y/Y2) when demand is sufficient and staging timer constraints have been
satisfied.
36
20 to 50_F (-- 7 to 10_C) — Outdoor temperature below which both first and second
stages of the compressor are energized to satisfy all heating demands. When a cycle
starts under a high heat latch, it will finish the heating cycle on high stage.
On — The Y1 and Y/Y2 outputs are simultaneously energized to satisfy all heating
demands.
Default is OF (off).
Option 24 — Programmable/Non-- Programmable (programmable models only)
This selection allows the installer to configure the Thermidistat Control as either
programmable or non-- programmable. Selections are P, nP.
Default is P.
Option 25 — Number of Programmable Periods (programmable models only)
This selection allows the installer to configure the Thermidistat Control for two or
four periods per day. Two periods is a common commercial application and four
periods is more common for residential. This selection is not available if Option 24
has been set to nP to configure the Thermidistat Control for non-- programmable
operation.
2 — Periods DAY and SLEEP are available
4 — Periods WAKE, DAY, EVE, and SLEEP are available.
Default is 4.
Option 26 — Minimum Cooling Setpoint
This selection allows the installer to configure the minimum cooling setpoint that
the user is allowed to set. The range is based on the value of the adjustable
deadband Option 11, such that the minimum of the range is 50_F/10_C plus the
adjustable deadband and the maximum is 90_F/32_C.
37
Default is 52_F/11_C (based on the adjustable deadband default = 2).
Option 27 — Maximum Heating Setpoint
This selection allows the installer to configure the maximum heating setpoint. The
range is based on the adjustable deadband value Option 11, such that the minimum
of the range is 50_F/10_C and the maximum is 90_F/32_C minus the deadband.
Default is 88_F/31_C (based on the adjustable deadband default = 2).
Option 28 — UV Light Reminder
This selection allows the installer to select the number of months after which the
UV Light icon will be displayed to indicate to the homeowner that it is time to call
the dealer to have the UV Lights replaced. Selections available are OF (off), 6, 12,
18, 24, 30, 36, 42, 48.
OF (off) — The UV Light reminder is turned off and will never be displayed.
6-- 48 — The number of months after which the UV Light reminder will be
displayed, “CHECK UV LIGHT”.
Default is OF (off).
Option 29 — Humidifier Pad Reminder
This selects the number of months after which the Humidifier Pad Reminder icon
will be displayed. This is not based on run time.
OF (off) — The Humidifier Pad Reminder is disabled and will never be displayed.
1-- 24 — The number of months after which the Humidifier Pad Reminder icon will
be displayed, “CHECK HUM PAD”.
Default is OF (off).
38
Option 30 — Programmable Fan (programmable models only)
This selection allows the homeowner to program the fan selection to “Auto” or
“On” fan operation for each of the program schedule periods. This selection is only
available on programmable Thermidistat Controls.
OF (off) — Programmable fan is disabled and the homeowner must manually select
“Auto” or “On” for fan operation.
On — Programmable fan is enabled. The homeowner can program “Auto” or “On”
fan operation along with the heat and cool setpoints for each programmed period.
When the program schedule is running, the programmed heat setpoint, cool
setpoint, and fan selection for that period will be used. If the homeowner
“overrides” the programmed fan setting by pressing the fan button, the override
selection will remain in effect until the next programmed period time.
Default is OF (off).
Option 31 — Daylight Savings Time Configuration (programmable models
only)
This selection allows the installer to set the Thermidistat Control to automatically
change by one hour on the specified day, month, and week specified.
OF (off) — Daylight Savings Time Function disabled.
1,2 On — The first time the UP/DOWN button is pressed, the value of this selection
changes from OF (off) to 1. When 1 is displayed, the days of the week and clock
digits will be turned on. The installer will set the start date (Spring) for Daylight
Savings Time by setting the day of the week by selecting the appropriate triangle
icon next to the days of the week, the month of the year will be set in the clock
hours location (range 1-- 12) and the week of the month will be set in the clock
minutes location. The week of the month selections will be F, 2, 3, 4, and L for First,
2nd, 3rd, 4th, and Last. So for the first Sunday in April, the display would show
SUN, 4, F. When 2 is displayed, the installer will then choose the end date for
daylight savings time (Fall). To activate the function, the installer changes the “2”
39
by pressing the up button and “On” is displayed. The setting shall be left “On” to
enable the Daylight Savings Time function.
Default is On (on).
Option 32 — Furnace Heat Staging Control (available only when the
Thermidistat Control is configured to operate AC or A2 equipment).
1 — Thermidistat Control controls W1 output only and furnace controls the turn on
and turn off of higher stages of heat.
2 — Thermidistat Control will control the W1 and O/W2/B outputs.
Default is 1.
Option 33 — Single or Two-- Piece Installation
This configuration allows the Thermidistat Control to compensate for the amount of
heat generated by the Thermidistat Control electronics to allow more accurate
sensing of the temperature sensor. The amount of heat compensation will be
different between single installation and two-- piece installation.
Range: 1P or 2P
1P — The installation is single piece.
2P — The installation is two separate pieces.
Default is 2P.
40
Option 34 - Hybrid Heat Furnace Latch
This selection allows a Hybrid Heat system to finish a heating cycle using the
furnace.
On - Once the furnace is on, it will finish the heating cycle with the furnace. If a
heat pump defrost occurs, the heating cycle will finish with the furnace.
OF - The system will stage from furnace back to heat pump if heating demand
dictates, or 2 minutes after a defrost has ended.
Default is On.
Option 40 — Humidify Fan
This selection controls whether humidification can only be done when a heating
demand is present. If the homeowner turns humidification OFF, this configuration
operates as if the selection was set to OFF.
OF - The humidity output will only energize when there is a humidity demand and
the heating equipment is energized.
On - The humidity output and the fan will energize anytime humidification is
needed during heating mode regardless of the state of the heating equipment.
Factory default is OF (Off)
Option 41 — Variable Speed Blower
This selection allows the installer to select between a single speed or variable motor.
In a system with a two speed compressor (A2, h2, H2), if a dehumidification
demand exists and the compressor is energized for cool to dehumidify, cooling, or
both, and the system has a PSC blower (Option 41 = OFF), then both Y/Y2 and
Y1/W2 are energized.
41
Off - The system has a single speed (PSC) blower.
On - The system has a variable speed blower.
Select Off for geothermal applications.
Factory default is OF (Off)
Option 42 — Variable Speed Super Dehumidification
This option will only be available if the Variable Speed Blower setup (Option 41)
has been set to ON.
OF - The fan output (G) is energized when the compressor is on for cool to
dehumidify functionality.
On - The fan output (G) is de-- energized when the compressor is running for cool to
dehumidify functionality. In this setup the fan will run at very low speed because a
Y/Y2 or Y1/W2 is present but the G signal is not. The fan output (G) will be
energized any time the compressor is energized in response to a cooling demand.
Factory default is OF (Off)
Option 43 — Intelligent Heat Staging
This function is only available if the equipment configuration is a single speed heat
pump (Option 01 = HP).
Off - Electric heat will not be staged.
On - Three stages of electric heat will be staged.
This switch should be set to On if the HVAC equipment has two banks of strip
heaters. When electric heat is required, the thermostat will energize the smallest
bank first (W1 only), then the larger bank (turning the smaller bank off - Y1/W2
only), and then both banks together (both W1 and Y1/W2). When power is cycled
to the thermostat, this unit configuration will be displayed as HS.
Factory defaults is OF (Off)
42
Option 44 — Super Comfort Heat
This option is only available on heat pump units HP (HP, H2, hh, and h2) when
Option 41 (Variable Speed Blower) is set to On and the system has a valid OAT
sensor.
OF (Off) - Comfort Heat is off
On - Comfort Heat feature is on.
If the outdoor air temperature is between 12 to 40_F (-- 11 to 4_C) and the
compressor is running in heating, then the fan output is turned off. This will signal
the variable speed blower to reduce the air speed. The fan output is turned off even
if the user has the fan selection set to continuous fan. The fan output will be turned
back on in this temperature range if the maximum capacity of auxiliary heat is on
due to system demand (auxiliary heat on in response to a defrost signal shouldn’t
cause the fan to turn back on).
If the outdoor air temperature is below 12_F/-- 11_C and there is sufficient demand
for the equipment to be on, then the fan output is turned back on and the W/W1
output is energized. In a two speed unit the Y/Y2 output should be energized in
addition to the W/W1 output. This logic does not apply to a Hybrid Heat system. In
the unlikely event that the installer has selected a heat pump lockout temperature
(Option 09) of 5_F/-- 15_C in a Hybrid Heat system and the comfort heat feature is
on, then the comfort heat feature will turn the W/W1 on and the compressors off
when the outdoor air temperature drops below 12_F/-- 11_C instead of at the lower
temperature of 5_F/-- 15_C.
NOTE: All temperature boundaries have a +/-- 2_ hysteresis
Factory default is OF (Off).
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Option 99 — Reset to Factory Defaults
Use this capability to reset the Thermidistat Control to “out of the box” conditions.
BEWARE! All configuration settings, program settings, clock, and calendar which
have been manually entered will be lost!
When this option is selected, the configuration number (99), will appear on the left
and 10 will appear on the right. To perform the reset, first use the MODE key to
move the box from the 99 to the 10 (programmable model) or to flash the 10
(non-- programmable model). Then press and hold the DOWN key. The 10 will start
counting down toward zero. If the DOWN key is kept pressed until the count
reaches zero, the reset will be performed. When the value reaches zero, the heat
setpoint shall display - - . The cool setpoint shall display - and the room air
temperature shall display Fd. When the factory defaults have been restored, the
Thermidistat Control will act as if power was cycled and return to normal operation.
If the DOWN key is released early, the number will return to 10 and the reset will
not occur.
44
SYSTEM START--UP AND CHECKOUT
The Thermidistat Control is designed with a built-- in installer test capability. It
allows easy operation of equipment without delays or setpoint adjustments to force
heating or cooling. To enable installer test mode, press and hold the fan button for
15 seconds. After 10 seconds, the Thermidistat Control will enter Configuration
Mode. Continuing to hold the Fan button through 15 seconds will cause the
Thermidistat Control to enter Installer Test Mode. Pressing the Mode button will
change the system operating mode to test the heating and cooling equipment. Auto
Mode is not available during Installer Test Mode. If no buttons are pressed for 15
minutes, the installer test mode will be terminated. Pressing DONE at any time will
exit installer test mode.
Heat - The first stage of heating will be energized for three minutes, then the first
and second stages (if a second stage exists) will turn on for an additional three
minutes. During the first stage of heating, the HEAT ON icons will be displayed.
During the second stage of heating (if one exists), the “2” next to the “On” will be
displayed if the system has a two-- stage compressor (A2, h2, or H2 unit types). The
“auxiliary heat on” icon will be displayed if the second stage is electric heat (HP
unit type). While the heating test is active, the humidify output can be toggled. On
the programmable models, pressing the button below the humidify icon shall toggle
the state of the humidify output. On the non-- programmable models, pressing the
features button shall toggle the state of the humidify output.
Installer test for cooling is the same as described for heating above. COOL ON will
be displayed during cooling in Installer Test Mode. While the cooling test is active,
the dehumidify icon shall be displayed if the dry contact has been configured as a
DH output. On the programmable models, pressing the button below the
dehumidify icon shall toggle the state of the dry contact output. On the
non-- programmable models, pressing the features button shall toggle the state of the
dry contact.
45
In a heat pump application, when the mode is set to “em heat” the auxiliary heat
will turn on for 3 minutes. The clock display will count down from 180 to 0 during
this test.
TO TEST FAN
Fan button switches FAN icon between AUTO and On. While On is displayed, G
output will be energized, turning fan on. On some fan coils, fan continues to operate
for 90 sec after G signal is removed.
Final Settings
Be sure to press DONE to exit installer setup mode. If the system is to be left in
operation after installation is complete, use MODE button to select between HEAT,
COOL, or AUTO to provide desired operation of heating, cooling, or auto.
On the programmable models, the default setpoints and programmed schedule
conform to the Energy Starr requirements of the U.S. Department of Energy for
both heating and cooling. These provide energy saving temperature settings. Refer
to Table 1.
Table 1 – Energy Star Default Schedule
SCHEDULE
HEAT
COOL
Wake 6:00 AM
68_F/20_C
78_F/26_C
Day 8:00 AM
60_F/16_C
85_F/29_C
Evening 5:00 PM
68_F/20_C
78_F/26_C
Sleep 10:00 PM
60_F/16_C
82_F/28_C
46
If the programmed schedule is to be used, make sure the triangle icon next to the
FOLLOW SCHEDULE icon is turned on. Pressing the Schedule button will cycle
the triangle icon through the FOLLOW SCHEDULE, HOLD and VACATION
selections.
If fixed temperatures are desired, use SCHEDULE button to turn on arrow icon next
to HOLD. This will maintain setpoints, not allowing them to change with
programmed schedule.
The FAN button may be used to select between AUTO (fan on only with
equipment) and On (fan on continuously) fan modes. For further information on
temperature selection and programming, refer to Homeowner’s Guide.
Setting The Clock, Calendar, Daily Schedule, and Vacation Settings
(programmable models only)
To set the clock, press the SET button once. The Clock will be displayed at the
bottom center of the screen. Use the soft keys to move the box around the digits to
be set and the UP/DOWN buttons to change the setting. Concurrent presses of the
set button will cycle through the calendar, daily schedule, and vacation settings.
Calendar may be changed by using the soft keys to select the Month, Day, or Year.
The UP/DOWN buttons are used to change the Month, Day, or Year setting when
the box surrounds it. Day of the week (Mon-- Sun) is determined by calendar
settings and is not directly adjustable.
When changing daily schedule settings, the soft keys are used to set the days,
period times, heating setpoints, and cooling setpoints. The UP/DOWN buttons are
used to change the setting with the box around it. ALL PROGRAM PERIODS
(WAKE, DAY, EVE, SLEEP) MUST OCCUR WITHIN THE SAME 24 HOUR
PERIOD.
47
When changing Vacation settings, the soft keys are used to choose the selection to
be adjusted and the UP/DOWN buttons are used to change the setting. Humidify
setting may only be changed when heat mode is selected and Dehumidify setting
may only be changed when cool mode is selected.
Humidity Control Features
The various humidity control features of the Thermidistat Control are explained
below. They are grouped into 2 sections, humidification and dehumidification.
Instructions on how to select each feature are given at the end of each section.
Humidification
The Thermidistat Control directly connects to a standard 24VAC humidifier to
control humidification in the home. A humidify setpoint between 10 and 44% in 2%
increments relative humidity is selected by the homeowner, or all humidification
can be turned off. When humidity in home drops below setpoint, humidifier will be
turned on to raise humidity level. Humidification can only occur while in heating
mode. See Table 2 for reference.
Table 2 – Humidification Selections
SELECTION
FAN DISPLAY
HUMIDIFY SETPOINT
DISPLAY
Normal Humidify
Blank
10--- 44
Auto Humidify
AUTO
1
Humidify Off
Blank
OF (Off)
1. Humidify
In normal humidify, humidifier will be on if there is humidity demand and
any heating equipment is on. This will include furnace, heat pump, or auxiliary heat.
48
2. Auto Humidify
Thermidistat Control will automatically adjust the humidity setpoint according to the outdoor temperature. As the outdoor temperature decreases, the
humidity setpoint also decreases. Settings ranging from 1 to 9, 1 being the
lowest and 9 the highest, will be visible to the homeowner. See Fig. 18 for
outdoor temperature/indoor humidity relationship in auto humidify mode.
Outdoor Air Temperature Sensor must be connected.
3. Humidify Off
The humidify function can be turned off completely. This does not require
changing existing setpoints.
To Select Humidification (programmable)
Press the soft key below the humidify icon to bring up humidity select screen.
Humidify options are only available when in Heating mode. When system is in
AUTO mode, humidify options are available if the last system operation was a call
for heat.
To Select Humidification (non-- programmable)
Press the features button twice. The first press displays the outdoor air temperature
and the second press displays the humidity value and humidify target.
Pressing the mode button shall cycle through the available humidification selections
(Off, Humidify and Auto Humidify).
Additional Humidify Comments
The humidifier is actually turned on when humidity is 1% below setpoint and
turned off when it reaches 1% above setpoint. This built-- in hysteresis prevents
humidify output from toggling on and off when humidity level is near setpoint.
49
Dehumidification
Dehumidification is done only during cooling. Depending on type of equipment
used, compressor speed, blower speed, setpoint adjustment, and equipment cycling
are modified to provide added dehumidification. A dehumidification setpoint
(separate from humidification setpoint) is available to the homeowner. It can range
from 46% to 66% relative humidity. When actual humidity is higher than setpoint, a
dehumidification demand exists. The Thermidistat Control responds by activating
the dry contact (when enabled in Option 19). It may also control the compressor
and blower, depending on equipment type and dehumidify selection choice. The 3
available selections are described below. A mandatory 5 minute blower off delay
will be enforced if there has been a call for dehumidification during a cooling call.
The amount of extra dehumidification available is very dependent on the type of
equipment in the home. Without a variable-- speed blower, the system’s ability to
adjust dehumidification is very limited.
1. Normal Dehumidify Operation
When normal dehumidify is selected, the compressor will not turn on
without a cooling demand. If dehumidify demand exists while cooling, dry
contact will also be active (24VAC removed). This output commands variable-- speed blowers to reduce their airflow, which improves water removal
from the cooled air.
2. Cool to Dehumidify
The cool to dehumidify selection tells the system to operate the compressor,
within limits, when there is a dehumidify demand even if there is no cooling
demand. The limits are that the system may overcool up to 3_, but no more,
while attempting to satisfy a dehumidify demand. Within this 3_ range,
there is an additional balance between overcooling and humidity satisfaction. When overcooling must occur, the dehumidify setpoint is adjusted upward by 2% per degree of overcooling. For example, a cooling setpoint of
76_F/24_C and a dehumidify setpoint of 60% is equivalent to a cooling setpoint of 75_F/24_C and a dehumidify setpoint of 62%. This dehumidify set50
point change is internal to the Thermidistat Control and is not shown on the
display.
A06599
Fig. 18 - Auto Humidity
3. Dehumidify Off
Dehumidification can be turned off completely. This can be done without
changing existing setpoints.
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To Select Dehumidification (programmable - between NORMAL, COOL TO,
and OFF)
Press the soft key below the dehumidify icon button to bring up dehumidify
selections. Dehumidify options are only available when in Cooling mode. When
system is in AUTO mode, dehumidify options are available if the last system
operation was a call for cooling.
To Select Dehumidification (non-- programmable - between NORMAL, COOL
TO, and OFF)
Press the features button three times. The first press displays the outdoor air
temperature, the second press displays the humidify options and the third press will
display the current dehumidify selections.
The mode button is used to cycle through the dehumidify selections.
Additional Dehumidify Comments
Dehumidification can be enhanced (with some efficiency loss) by turning blower
off immediately at the end of each cooling cycle (eliminating normal 90 sec blower
off delay). Where maximum humidity removal is desired, this should be done. Fan
coils have the capability of removing this off delay. On FK or FV Fan Coils, set
delay tap to 0/0. On standard fan coils, a jumper can be cut to disable off delay.
Refer to fan coil Installation Instructions for details. If FAN is set for continuous
operation (fan On icon displayed), G output is turned off for 5 minutes at the end of
each cooling cycle as long as dehumidify demand exists.
Like humidify, dehumidify actions are initiated when humidity is 1% above setpoint
and are terminated when humidity drops to 1% below setpoint. This prevents
unnecessary toggling of dehumidify actions when humidity is near setpoint.
52
Dehumidify Output and Equipment Connections
When there is a dehumidify demand, dry contact is activated, meaning that a
24VAC signal is removed from the DHUM or DH output terminal. In other words,
dehumidify output logic is reversed - output is turned On when no dehumidify
demand exists and is turned OFF when demand exists.
Carrier FK and FV series variable-- speed fan coils, all variable-- speed furnaces, and
select single and multi-- stage furnaces with the dehumidify connection have
dehumidify inputs which connect directly to Thermidistat Control dry contact.
Refer to the furnace literature for dehumidification options.
The FK and FV series fan coils have a terminal marked DH which should be
connected to the Thermidistat Control dry contact output. Jumper J1 on fan coil
MUST be removed. It is located behind the DH terminal. Additionally blower delay
tap on fan coil should be set to 0/0 (no On delay and no OFF delay) when using
cool to dehumidify. With this selection, the blower stops when G signal is removed,
preventing re-- evaporation of water from the coil which would occur during the
normal 90 sec blower off delay. See fan coil installation instructions for more
information.
The furnace dehumidify input acts differently depending on which style of variable
speed, select single-- stage or multi-- stage furnace control you have.
Vacation (programmable models only)
A vacation selection is available specifically for times where the home will not be
occupied for an extended period. Vacation mode has an automatic hold, meaning
that setpoints are not affected by the programmed schedule. Vacation mode is active
for a specified period of time. While in vacation mode, the system provides
temperature and humidity protection for the home in the selected mode, but not
comfort. When vacation mode is active, an arrow will be displayed beside
“VACATION” in the upper left corner of the display.
53
Vacation Setpoints
A special set of temperature and humidity setpoints exist which are active in
vacation mode. They are adjustable by the homeowner, are exclusively for vacation
mode, and are remembered from one vacation selection to the next. See Table 3 for
default values.
Table 3 – Vacation Setpoints Default Values
MODE
AUTO
Fan
Auto
Heat Setpoint
55_F/13_C
Cool Setpoint
85_F/29_C
Humidify Setpoint
20_F/-- 7_C
Dehumidify Setpoint
60_F/16_C
Vacation Humidification
Normal humidify is available using vacation setpoints. Auto humidification is
available, adjusting its setpoint with outdoor temperature the same as when
occupied. Vacation humidification can be turned off independently of occupied
humidification. While setting the Vacation setpoints, the Vacation humidify setpoint
is accessible by pressing the soft key below the humidify icon when the box is
around the heating setpoint.
Vacation Dehumidification
Normal Dehumidify, Cool to Dehumidify, and Dehumidify OFF are all available in
vacation mode, and selection of one of these can be different from that of occupied.
Vacation dehumidification selection and setpoints are remembered the next time
vacation is used. While setting Vacation setpoints, the Vacation dehumidify setpoint
is accessible by pressing the soft key below the dehumidify icon when the box is
around the cooling setpoint.
54
OPERATIONAL INFORMATION
Timers
Five-- Minute Compressor Timeguard
This timer prevents compressor from starting unless it has been off for at least 5
minutes. It can be overridden for 1 cycle by simultaneously pressing FAN and UP
buttons.
Cycle Timer
Based on the selection of 2, 4, or 6 cycles per hour, this timer is set to 30, 15, or 10
minutes. This much time must elapse from the start of one cycle before another
cycle can start. It serves to impose the cycles per hour limits. It can be defeated for
one cycle by simultaneously pressing the FAN and UP buttons.
Ten-- Minute Staging Timer
In multistage heating or cooling, this timer prevents any higher stage from turning
on until preceding stage has been on for 10 minutes. When staging between
compressor and electric heat or between compressor and furnace heat, the time is
configurable. The timer is configurable via Option 17. This timer is overridden if
temperature error is greater than 5_ (usually due to a large change in desired
temperature) and equipment stages up in 60 second intervals.
The ten-- minute staging timer does not require the thermostat to change to a higher
stage after 10 minutes. If the system is able to meet the demand (maintain setpoint)
it may not change stages after the 10 minute timer has expired. If there is sufficient
demand for a higher stage at the end of 10 minutes or at any time after the 10
minute timer has expired, the thermostat will energize the next higher stage.
55
Defrost
When defrost occurs in a Hybrid Heat system, the furnace will operate during the
defrost cycle. At the end of the defrost cycle, the furnace and heat pump will be
de-- energized while the fan is energized for 2 minutes allowing the heat exchanger
to cool down. If Option 34, Hybrid Heat Furnace Latch is set to Off, at the end of
the 2 minute time, the heat pump will be re-- energized if a call for heat still exists. If
Option 34 is set to On (default), the furnace will remain on until the end of the
heating cycle.
Defrost detection is not available if the installer has configured the O/W2/B output
to function as a B output. During heat pump heating, a defrost signal shall be
considered valid if the compressor output is energized and the defrost signal has
been active for less than 15 consecutive minutes. Any defrost signal present for
longer than 15 minutes shall be considered invalid.
Heat pump/fan coil and Hybrid Heat systems shall use this input to:
S
Detect that defrost is in progress and energize the auxiliary heat to
provide homeowner comfort during the defrost cycle
S
Allow a defrost cycle to run to completion regardless of the system
demand
Three-- Minute Minimum on Time
In normal operation, when a stage turns on, it will not turn off for a minimum of 3
minutes. In Hybrid Heat systems, the minimum on time for the furnace is 5 minutes.
If the setpoint is changed, this timer is canceled, allowing the equipment to turn off
immediately when the demand is removed. The 3 minute minimum on timer applies
to all stages of heating and cooling, except Hybrid Heat. A stage will run for a
minimum of 3 minutes before the thermostat will be allowed to stage to a lower
stage.
56
Heat/Cool Setpoints (Desired Temperature)
A minimum difference of 1_ and maximum of 6_ is enforced between heating and
cooling desired temperatures. This is done by allowing 1 setting to “push” the other,
to maintain this difference. This difference is adjustable via Configuration Option
11.
Equipment On Indicators
When cooling equipment is on, a COOL ON icon is displayed. While cooling
equipment operation is delayed by the time guard or cycle timer, COOL ON will
flash. The same is true for HEAT ON icon.
During second stage compressor operation a “2” will be displayed with the HEAT
ON or COOL ON icon. This is displayed when the Thermidistat Control is
configured as H2, A2, or h2.
When the W is energized in a heat pump or Hybrid Heat system, the “auxiliary heat
on” icon will be displayed.
Humidify and Dehumidify Indicators
When the Display Module door is closed, the humidify icon will be displayed when
humidification is active and the dehumidify icon will be displayed when
dehumidification is active.
Auto Changeover
When auto changeover mode is selected, a change from heat to cool (or vice versa)
will not occur until an opposite mode demand has existed for 20 minutes. If setpoint
is changed, 20-- minute requirement is deleted.
Emergency Heat Mode
When Thermidistat Control is configured as a heat pump and emergency heat is
selected, all Y signals are locked out, and W becomes energized upon a call for
heat.
57
Programmable Fan (programmable models only)
The fan output can be programmed based on period of the day. When programming
for each day and period the fan can be set to On or AUTO. If the fan button is
pressed to change from On to Auto or vice versa when programmable fan has been
enabled, the manual change will only remain in effect until the next program
period, when the programmable fan setting will be changed per the scheduled
setting.
Dry Contact
On the programmable models, the dry contact that can be used for control of an
auxiliary device. The dry contact may be configured to be closed for a specific
number of minutes per hour for each period of the program schedule. This can be
used to operate a ventilator, damper, system blower, or other auxiliary device. There
are two terminals, D1 and D2.
On both the programmable and non-- programmable models, when configured as a
dehumidify output, it will operate cooling equipment capable of dehumidify
function. When configured for dehumidification, the Rc terminal must be connected
to one of the dry contact terminals. The other dry contact terminal is connected to
the dehumidify terminal on the furnace or fan coil. This provides power to energize
the dehumidify terminal on the cooling equipment when the dry contact is closed.
If it is desired to operate a ventilator or other device, the D1 and D2 terminals can
be connected directly to the equipment. This will provide a closed contact for the
specified number of minutes per hour. See Option 19.
If timed control of the system blower is required, the dry contact can be used for
this function. The G terminal can be connected to one of the dry contact terminals
with the other terminal being connected to Rc and/or Rh for timed control of the
fan. Note that this is not the same as programmable fan Option 30.
See Wiring Diagrams for more information.
58
Relays
This thermostat uses latching relays. When the thermostat loses power, the relays
will remain in their last position until power is restored and all relays are reset to
their correct position. Out of the box, the outputs may appear to be On when the
thermostat is not powered. This is normal. Output states should only be checked
when the thermostat is powered.
Temperature Offset After Power Cycle
To compensate for internal heat build-- up from the electronics in the thermostat, the
thermostat will add an offset to the actual temperature that it measures. If the
thermostat power is cycled quickly, one can witness an immediate increase in the
actual temperature displayed due to this added offset. The thermostat display will
return to the actual room temperature after several minutes of operation.
59
TROUBLESHOOTING
If the display module doesn’t power up after power is applied, check the Rc/Rh and
C terminals for 24VAC. If 24VAC is present, check the voltage between Vg and
V+. This voltage will be approximately 12-- 20VDC. If voltage is present, check the
polarity to make sure it is wired correctly. The display will not power up if polarity
is reversed.
If dashes appear for Option 01 in config and during reboot, the problem could be
the red pigtail being wired to Rc or Rh and the black pigtail being wired to C. If so,
remove the two-- wire pigtail and connect to the V+ and Vg terminals.
Error Codes
“-- - ” - If Thermidistat Control cannot properly read room temperature, display will
indicate “-- - ” and all outputs (except fan, if on) will turn off. In the case where the
installer has selected to average the local sensor and the remote room sensor, the
Thermidistat Control display will alternate between “-- - ” for the failed sensor and
the temperature sensed by the working sensor every 10 seconds. The control will
operate from the temperature sensed by the working sensor.
E1 - If the Display Module and the Equipment Control Module cannot
communicate via two-- wire connection, an E1 will be displayed.
E2 - There is no E2 error message.
E3 - If Thermidistat Control cannot properly read outdoor temperature, and it is
needed for proper operation, display will indicate “-- - ” in the outdoor temperature
location. If Option 06, 08, 09, 22, 23 or 44 is not set to OFF, display will indicate
“-- - ” in the outdoor temperature location.
E4 - If Thermidistat Control’s internal memory fails, E4 will be displayed. Replace
Thermidistat Control.
60
E5 - If Thermidistat Control cannot properly read humidity, E5 will be displayed.
Replace Thermidistat Control. If both Humidify and Dehumidify have been set to
OF, the humidity value will be shown as “-- - ” when viewed from the humidity
menu, but no E5 will be shown in the display.
Table 4 can be used as a troubleshooting tool for determining which outputs will be
active for a particular configuration and each operating mode.
When replacing a failed component such as an equipment control module or a
display module, the installer should replace both parts as a matched set. It is very
easy to accidentally mix an A/C or HP display with a PRH equipment control
module. When this happens, some functions appear in the setup while others do not.
This can be very confusing to troubleshoot. Verify that both parts have the same
model and serial number when troubleshooting the thermostat.
61
Table 4 – Equipment Configuration Outputs
Equip
Config
Tstat
Model
COOL
STG 1
COOL
STG 2
HEAT
STG 1
HEAT
STG 2
HEAT
STG 3
HEAT
STG 4
EM
HEAT
STG 1
EM HEAT
STG 2
SS AC
Opt 1 = AC
TP--PRH-A, --B
TP--NRH
--A, --B
Y/Y2
----
W/W1
W/W1,
O/W2/B
(if Opt 32 = 2)
----
----
----
----
SS HP
Opt 1 = HP
RVS = O Opt
10 = C
TP--PRH-A, --B
TP--NRH
--A, --B
Y/Y2,
O/W2/B
----
Y/Y2
Y/Y2,
W/W1
Y/Y2,
W/W1,
Y1/W2
----
W/W1
W/W1,
Y1/W2
SS HP
Opt 1 = HP
RVS = B
Opt 10 = H
TP--PRH-A, --B
TP--NRH
--A, --B
Y/Y2
----
Y/Y2,
O/W2/B
Y/Y2,
W/W1,
O/W2/B
Y/Y2,
W/W1,
Y1/W2
O/W2/B
----
W/W1
W/W1,
Y1/W2
SS HP
Opt 1 = HP
RVS = O
Opt 10 = C
Opt. 43 = On
TP--PRH-A, --B
TP--NRH
--A, --B
Y/Y2,
O/W2/B
----
Y/Y2
Y/Y2,
W/W1
Y/Y2,
Y1/W2
Y/Y2,
W/W1,
Y1/W2
W/W1
W/W1,
Y1/W2
SS HP
Opt 1 = HP
RVS = B
Opt 10 = H
Opt. 43 = On
TP--PRH-A, --B
TP--NRH
--A, --B
Y/Y2
----
Y/Y2,
O/W2/B
Y/Y2,
W/W1,
O/W2/B
Y/Y2,
Y1/W2,
O/W2/B
Y/Y2,
Y1/W2,
W/W1,
O/W2/B
W/W1
W/W1,
Y1/W2
2SPD AC
Opt 1 = A2
TP--PRH-A, --B
TP--NRH
--A, --B
Y1/W2
Y/Y2,
Y1/W2
W/W1
W/W1,
O/W2/B
----
----
----
----
2SPD HP
Opt 1 = H2
RVS = O
Opt 10 = C
TP--PRH-A, --B
TP--NRH
--A, --B
Y1/W2,
O/W2/B
Y1/W2,Y
/Y2,
O/W2/B
Y1/W2
Y1/W2,
Y/Y2
Y1/W2,
Y/Y2,
W/W1
----
W/W1
----
62
Table 4 - Equipment Configuration Outputs (cont.)
Equip
Config
Tstat
Model
COOL
STG 1
COOL
STG 2
HEAT
STG 1
HEAT
STG 2
HEAT
STG 3
HEAT
STG 4
EM
HEAT
STG 1
EM HEAT
STG 2
2SPD HP
Opt 1 = H2
RVS = B Opt
10 = H
TP--PRH
--A, --B
TP--NRH--A,
--B
Y1/W2
Y1/W2,
Y/Y2
Y1/W2,
O/W2/B
Y1/W2,
Y/Y2,
O/W2/B
Y1/W2
Y/Y2
O/W2/B
W/W1
----
W/W1
----
SS Hybrid
Heat
Opt 1 = hh
RVS= O
Opt 10 = C
TP--PRH-A, --B
TP--NRH-A, --B
Y/Y2,
O/W2/B
----
Y/Y2
W/W1
W/W1,
Y1/W2
----
W/W1
W/W1,
Y1/W2
SS Hybrid
Heat
Opt 1 = hh
RVS = B
Opt 10 = H
TP--PRH-A, --B
TP--NRH-A, --B
Y/Y2
----
Y/Y2
O/W2/B
W/W1
----
----
W/W1
----
2S Hybrid
Heat
Opt 1 = h2
RVS = O
Opt 10 = C
TP--PRH-A, --B
TP--NRH-A, --B
Y1/W2,
O/W2/B
Y1/W2
Y/Y2,
O/W2/B
Y1/W2
Y1/W2,
Y/Y2
W/W1
----
W/W1
----
2S Hybrid
Heat
Opt 1 = h2
RVS = B
Opt 10 = H
TP--PRH-A, --B
TP--NRH-A, --B
Y1/W2
Y1/W2,
Y/Y2
Y1/W2,
O/W2/B
Y1/W2,
Y/Y2,
O/W2/B
W/W1
----
W/W1
----
Heat Only
Unit
Opt 1 = H
TP--PRH-A, --B
TP--NRH-A, --B
----
----
W/W1
If HP or RH
board &
Opt. 32 = 2
W/W1,
O/W2/B
----
----
----
----
SS or 2SPD
Cool Only
Unit
Opt 1 = C
TP--PRH-A, --B
TP--NRH-A, --B
Y1/W2
Y1/W2,
Y/Y2
Ignore for
SS
----
----
----
----
----
----
63
WIRING DIAGRAMS
Display module
Display module
wall mount
V+
V+
Vg
Vg
Equipment Control Module
Fan Coil
Heat Pump
V+
O
O
V+
RVS/Heat Stage 2
Vg
O/B W2
W3
W2
Vg
Heat Stage 1
W/W1
W2
Compressor
Y/Y2
Y
Y
Y1 / W2
Fan
G
G
24VAC Hot Heating
Rh
R
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
24VAC Common
C
C
C
Outdoor Air Temp
OAT
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09163
Fig. 19 - Display to Equipment Control Module Connection
64
Fan Coil
Equipment Control Module
Heat Pump
O
O
RVS Cooling
O/B W2
W1
W1
Heat Stage 3
W/W1
W2
Heat/Cool Stage 1
Y1 / W2
Y1
Y1
Heat/Cool Stage 2
Y/Y2
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
DH
24VAC Common
C
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
R
Remove J1
jumper for
Dehumidify
modes
C
* Indicates connection may not be required/available.
A09657
Fig. 20 - FV/FK Fan Coil with 2-- Stage Heat Pump
65
Equipment Control Module
Typical
Fan Coil
Single-Stage
Heat Pump
W2
O
RVS Cooling
O/B W2
E
Heat Stage 2
W/W1
W2
W3
Heat Stage 3
Y1 / W2
Heat/Cool Stage 1
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
C
C
Y
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09165
Fig. 21 - Typical Fan Coil with Heat Pump
66
Equipment Control Module
RVS/Heat Stage 2
O/B W2
W3
Heat Stage 1
W/W1
W2
Compressor Low
Y1 / W2
Compressor High
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Aux. Connection
C
* Indicates connection may not be required/available.
A09166
Fig. 22 - Fan Coil Shown w/Aux. Connection #1
(Heat Pump/Air Conditioner removed for clarity.)
67
Equipment Control Module
Fan Coil
O
Heat Stage 2
Air Conditioner
Remove J2
Jumper for
heat staging
O/B W2
W2
Heat Stage 1
W/W1
W1
Cool Stage 1
Y1 / W2
Y1
Y1
Cool Stage 2
Y/Y2
Y/Y2
Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
DH
24VAC Common
C
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
R
Remove J1
jumper for
Dehumidify
modes
C
* Indicates connection may not be required/available.
A09167
Fig. 23 - FV/FK Fan Coil w/2-- Stage Air Conditioner
68
Typical
Fan Coil
Equipment Control Module
Single-Stage
Air Conditioner
O
Heat Stage 2
O/B W2
E
Heat Stage 1
W/W1
W3
N/A
Y1 / W2
W2
Cool Stage 1
Y/Y2
Y
Fan
G
G
24VAC Hot Heating
Rh
R
R*
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
C
C
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Y
* Indicates connection may not be required/available.
A09658
Fig. 24 - Typical Fan Coil with Air Conditioner
69
Fan Coil
Equipment Control Module
RVS/Heat Stage 2
O/B W2
W3
Heat Stage 1
W/W1
W2
Compressor Low
Y1 / W2
Compressor High
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Aux. Connection
C
* Indicates connection may not be required/available.
A09169
Fig. 25 - Fan Coil Shown with Aux. Connection #2
(Heat Pump/Air Conditioner removed for clarity.)
70
Equipment Control Module
Fan Coil
Heat Pump
O
RVS Cooling
O/B W2
Heat Stage 2
W/W1
O
W2
Remove J2
Jumper for
heat staging
W1
Heat Stage 3
Y1 / W2
W2
Heat/Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Y1
Dry Contact 1
D1
Dry Contact 2
D2
DH
24VAC Common
C
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Y
R
Remove J1
Jumper for
Dehumidify
modes
C
* Indicates connection may not be required/available.
A12237
Fig. 26 - FV/FK Fan Coil with 1-- Stage Heat Pump
71
Typical
Fan Coil
Equipment Control Module
RVS/Heat Stage 2
O/B W2
E
Heat Stage 1
W/W1
W2
Compressor Low
Y1 / W2
Compressor High
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
24VAC Common
C
Humidify
HUM
C
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09171
Fig. 27 - Typical Fan Coil Heating Only
72
Equipment Control Module
RVS/Heat Stage 2
O/B W2
Heat Stage 1
W/W1
Compressor Low
Y1 / W2
Compressor High
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Remote Room Sensor
RRS
OAT/RRS Com
SRTN
C
A09172
Fig. 28 - Thermidistat Control w/Dry Contact Control for Fan Run Time
73
Equipment Control Module
Fan Coil
Air Conditioner
O
Heat Stage 2
O/B W2
W2
Heat Stage 1
W/W1
W1
N/A
Y1 / W2
Y1
Heat/Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
DH
24VAC Common
C
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Remove J2
Jumper for
heat staging
Y
R*
Remove J1
Jumper for
Dehumidify
modes
C
* Indicates connection may not be required/available.
A09659
Fig. 29 - FV/FK Fan Coil with 1-- Stage Air Conditioner
74
Typical
Fan Coil
Equipment Control Module
RVS/Heat Stage 2
Single-Stage
Air Conditioner
O/B W2
Heat Stage 1
W/W1
Compressor Low
Y1 / W2
Compressor High
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
R*
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
C
C
Y
24VAC Common
C
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09660
Fig. 30 - Typical Fan Coil Cooling Only
75
Equipment Control Module
Furnace
Heat Pump
O
RVS Cooling
O/B W2
W2
Heat Stage 3 (furnace)
W/W1
W/W1
Heat/Cool Stage 1
Y1 / W2
Y1
Y1
Heat/Cool Stage 2
Y/Y2
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
***Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
W2**
R
C
* Indicates connection may not be required/available.
** Some heat pumps may designate W1.
***Option 19 set to 2.
A09121
Fig. 31 - Variable Speed, Multi-- Stage, Stage Modulating and Single-- Stage
Furnace with 2-- Stage Heat Pump
76
Furnace
Equipment Control Module
Single-Stage
Heat Pump
O
RVS Cooling
Heat Stage 2 (furnace)
Heat Stage 2
Y1
O/B W2
W/W1
W
W2**
Y
Y1 / W2
Heat/Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
***Dry Contact 1
D1
HUM
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
R
C
* Indicates connection may not be required/available.
** Some heat pumps may designate W1.
***Option 19 set to 2.
A09618
Fig. 32 - Single-- Stage Furnace with Heat Pump
(Hybrid Heat)
77
Furnace
Equipment Control Module
Air Conditioner
Heat Stage 2
O/B W2
W2
Heat Stage 1
W/W1
W/W1
Cool Stage 1
Y1 / W2
Y1
Y1
Cool Stage 2
Y/Y2
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
R
C
* Indicates connection may not be required/available.
A09123
Fig. 33 - Variable Speed, Step Modulating, Multi-- Stage and Single-- Stage
Furnace with Two-- Stage Air Conditioner
78
Equipment Control Module
Furnace
Single-Stage
Air Conditioner
Y1
N/A
O/B W2
Heat Stage 1
W/W1
N/A
Y1 / W2
W
Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
** Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
Y
R*
C
* Indicates connection may not be required/available.
** Option 19 set to 2.
A09661
Fig. 34 - Single-- Stage Furnace with Single-- Speed Air Conditioner
79
Furnace
Equipment Control Module
Heat Pump
O
RVS Cooling
O/B W2
W2
Heat Stage 3 (furnace)
Y1 / W2
W/W1
Heat Stage 2 (furnace)
W/W1
Y1
Heat/Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
*** Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
W2**
Y
R
C
* Indicates connection may not be required/available.
** Some heat pumps may designate W1.
***Option 19 set to 2.
A09125
Fig. 35 - Variable Speed, Multi-- Stage and Step Modulating Furnace with
Single-- Stage Heat Pump
80
Equipment Control Module
Furnace
N/A
O/B W2
Heat Stage 1
W/W1
N/A
Y1 / W2
N/A
Y/Y2
W
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09126
Fig. 36 - Single-- Stage Furnace Heating Only
81
Equipment Control Module
Furnace
Heat Stage 2
O/B W2
W2
Heat Stage 1
W/W1
W/W1
N/A
Y1 / W2
Y1
Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Air Conditioner
Y
R*
Rc
** Dry Contact 1
D1
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
C
* Indicates connection may not be required/available.
** Option 19 set to 2.
A09662
Fig. 37 - Variable Speed, Multi-- Stage, Step Modulating and Single-- Stage
Furnace with Single-- Stage Air Conditioner
82
Equipment Control Module
Heat Stage 2
Furnace
Air Conditioner
O/B W2
Heat Stage 1
W/W1
N/A
Y1 / W2
Y1
Cool Stage 1
Y/Y2
Y/Y2
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
** Dry Contact 1
D1
W1
Y
R
Dry Contact 2
D2
DHUM
24VAC Common
C
COM
Humidify
HUM
Outdoor Air Temp
OAT
Humidifier Solenoid
Valve *
Remote Room Sensor
RRS
Outdoor Sensor *
OAT/RRS Com
SRTN
Remote Room
Sensor *
C
* Indicates connection may not be required/available.
** Option 19 set to 2.
A09152
Fig. 38 - Single-- stage Furnace with Air Conditioner and Split Power
83
THERMIDISTAT CONTROL CONFIGURATION
RECORD
Installer
_________________________
Model Number
______________________________
Date
________________
A. Hardware Configuration
__________
Seal Hole In Wall
B. Mode Settings
__________
Mode (Off, Heat, Cool, Auto, Em Heat)
__________
Heating Setpoint Value
__________
Cooling Setpoint Value
__________
Fan (Auto or On)
C. Home, Away, Sleep Settings
Home
Away
Sleep
Heat
Cool
____
____
____
____
____
____
D. Schedule (For Programmable Thermidistat Controls)
Period 1
Period 2
Period 3
Period 4
Time
Heat
Cool
Time
Heat
Cool
Time
Heat
Cool
Time
Heat
Cool
All
Days
____
____
____
____
____
____
____
____
____
____
____
____
Weekdays
____
____
____
____
____
____
____
____
____
____
____
____
Weekend
____
____
____
____
____
____
____
____
____
____
____
____
84
E Configuration Options
Option 01
____
Equipment Type
Option 02
____
Clean Filter Timer Adjustment
Option 03*
____
Fahrenheit/Centigrade Selection
Option 04
____
Fan (G) on with W/W1 Selection
Option 05
____
Room Air Temperature Sensing (programmable models only)
Option 06
____
Cooling Lockout Below 55_F/13_C Selection (only available if outdoor air sensor is present)
Option 07
____
Zoning
Option 08
____
Auxiliary Heat Lockout Temperature Setting (only available when heat pump is used and when
outdoor air temperature sensor is present)
Option 09
____
Heat Pump Lockout Temperature
Option 10
____
Reversing Valve
Option 11
____
Adjustable Setpoint Deadband (not available on Heat Only and Cool Only systems)
Option 12
____
Smart Recovery (programmable models only)
Option 13
____
Room Air Temperature Offset Adjustment
Option 14
____
Humidity Offset Adjustment
Option 15
____
Enable Auto Mode
Option 16
____
Cycles Per Hour
Option 17
____
Time Between Stages
Option 18*
____
Backlight Configuration
85
E Configuration Options (cont)
Option 19
____
Dry Contact (programmable models only)
Option 20
____
Option 21*
____
Outdoor Air Temperature Offset Adjustment
Keypad Lockout
Option 22
____
High Cool Latch Temperature
Option 23
____
High Heat Latch Temperature
Option 24*
____
Programmable/Non-- Programmable (programmable models only)
Option 25*
____
Number of Programmable Periods Per Day (programmable models only)
Option 26
____
Minimum Cooling Setpoint
Option 27
____
Maximum Heating Setpoint
Option 28
____
UV Light Reminder
Option 29
____
Humidifier Pad Reminder
Option 30*
____
Programmable Fan (programmable models only)
Option 31*
____
Daylight Savings Time Configuration (programmable models only)
Option 32
____
Furnace Heat Staging
Option 33
____
Single or Two-- Piece Installation
Option 34
____
Hybrid Heat Furnace Latch
Option 40
____
Fan Humidity
Option 41
____
Variable Speed Blower
Option 42
____
Variable Speed Super Dehumidification
Option 43
____
Intelligent Heat Staging
Option 44
____
Super Comfort Heat
Option 99
____
Reset to Factory Defaults
* Options with an asterisk can also be set/changed by the homeowner.
86
NOTES
87
NOTES
88
997---060360---10---R
Copyright 2013 Carrier Corporation 7310 W Morris St. Indianapolis, IN 46231
TP---PRH ---10SI
Replaces: TP--- PRH--- 09SI
Edition Date: 07/13
Manufacturer reserves the right to change, at any time, specifications and designs without notice
and without obligations.