Specifications

Specifications

ElitePRO™ Series Thermostat Description

Feature	Description
Powering Method
Stages: Up to 3H/2C* Heat pump Up to 2H/2C* conventional Radiant floor with slab sensor	Equipment type: Dual fuel Hot water or steam. 2-pipe, 4-pipe or hot water fan coil PTAC* Gas or oil furnace High-efficiency or mid-efficiency Cool only Humidifier, Dehumidifier, or Ventilator control
Changeover	Manual or Auto Changeover Selectable
System Setting	Em Heat-Heat-Off-Cool-Auto
Fan Setting	Auto-On-Circ(High, Medium & Low for Fan Coil or PTAC)

* 4H/2C heat pump or 3H/4C conventional when using U or L at thermostat or U1-U3 at EIM for additional stages.

** ElitePRO thermostat with EIM can control three IAQ devices. S1000, S1100 and S1200 ElitePRO thermostat without EIM can control two IAQ devices

*** ElitePRO thermostats cannot be set for PTAC when used with the THM04R version of EIM.

Electrical ratings of ElitePRO™ Series Thermostat without EIM

Input Ratings: 24V~ 60 Hz, 0.11A

THX1200W7S and THX1200B8S models only have a U relay on thermostat and MUST be used with an EIM.

Terminal	Voltage (60Hz)	Running Current
W (Stage 1 heat for most non-heat pump applications. Do not use for Heat pump systems)	20-30 VAC	0.02-1.0 A
W2 / AUX (Auxiliary heat for heat pump systems. Stage 2 heat for non-heat pump systems)	20-30 VAC	0.02-1.0 A
E (Emergency Heat)	20-30 VAC	0.02-0.5 A
Y (Compressor Stage 1)	20-30 VAC	0.02-1.0 A
E (Emergency Heat. Not used unless set for separate aux and E)	20-30 VAC	0.02-1.0 A
G (Fan)	20-30 VAC	0.02-0.5 A
O/B (Reversing Valve / Changeover valve for heat pump)	20-30 VAC	0.02-0.5 A
L/A (Fault input from heat pump or economizer or output for humidifier, dehumidifier, or ventilator)*	20-30 VAC	0.02-0.5 A
U (Hum, Dehum, Vent. Economizer. Extra heat or cool stage. 3rd fan speed for fan coil)	20-30 VAC	0.02-0.5 A

* Only S1000, S1100 and S1200 models can use L/A as an output.

Power Consumption:

S900 and S1000: 2.2 VA.

S1100 and S1200: 2.6 VA.

Electrical ratings of EIM

Terminal	Voltage (60Hz)	Max. Current Rating
O/B (Reversing Valve / Changeover valve for heat pump)	20-30 VAC	1.00 A
Y (Compressor Stage 1)	20-30 VAC	1.00 A
Y2 (Compressor Stage 2 or 2nd fan speed for Fan coil)	20-30 VAC	1.00 A
G (Fan)	20-30 VAC	0.50 A
W1 (stage 1 heat for most non-heat pump applications. Do not use for Heat pump systems)	20-30 VAC	0.60 A
W2 / AUX 1 (Auxiliary/Emergency heat for heat pump systems. Stage 2 heat for non-heat pump systems)	20-30 VAC	0.60 A
W3 / AUX 2 (Second auxiliary/Emergency heat for heat pump systems. Stage 3 heat for non-heat pump systems)	20-30 VAC	0.60 A
L (input only. Heat pump or Economizer fault)	20-30 VAC	0.60 A
U1-U1, U2-U2, U3-U3 (Dry contacts for hum, dehum, vent, economizer, or extra stage(s) cool)	20-30 VAC	0.50 A

Power Consumption: 3.0 VA MAX

Wireless Communication:

Bluetooth: BLE 2.4 GHz

Dual-Band Wi-Fi: 2.4 & 5GHz

Redlink 3.0 Communication (S1000, S1100, and S1200 models): 900 MHz (Re-sync time: Redlink 3.0 devices re-establish communication within 6 minutes after AC power resumes.)

Radar (S1000, S1100, and S1200 models): 61.5 GHZ.

Temperature Setting Range:

Heating: 40 to 90 °F (4.5 to 32 °C).

Cooling: 50 to 99 °F (10 to 37n °C).

Adjustable high and low range-stop settings.

Humidification Setting Range:

0% to 90% RH.

Dehumidification Setting Range:

10% to 100% RH.

Humidity Sensor Accuracy:

± 5% RH from 30% to 50% RH at 75 F.

Interstage Differential:

Comfort (default setting):

The thermostat keeps the indoor temperature within 1 degree of the set point (Differential less control). Unless the system is dual fuel, or a Differential setting is used, the thermostat turns on stage 2 when the capacity on stage 1 reaches 90%.

See ISU 3030 for cool differential options.
See ISU 3050 and ISU 3090 for Backup Heat Differential options.

Clock Accuracy:

1 minute per month at 77 °F (25 °C). ± 2 minutes per month over the operating ambient temperature range. Automatically updates when connected to WiFi router and registered to account.

Mounting Means:

Thermostat mounts directly on the wall in the living space using mounting screws and anchors provided. Can mount to a horizontal 2 x 4 in. junction box using J-Box adapter & Cover plate.

Terminal Designations

Terminals on ElitePRO™ Series Thermostat without EIM

THX1200W7S and THX1200B8S models only have a U relay on thermostat and MUST be used with an EIM.

Conventional Systems		Heat Pump Systems
Terminal	Description	Terminal	Description
S/S	Input for a wired sensor or dry contact alert	S/S	Input for a wired sensor or dry contact alert.
Y	Compressor Stage 1	Y	Compressor Stage 1
Y2	Compressor Stage 2	Y2	Compressor Stage 2
G	Fan Relay	G	Fan Relay
C	24VAC Common wire from secondary side of cooling transformer (if 2 transformers)	C	24VAC Common wire from secondary side of cooling transformer
K*	Connect to K on C-wire adapter	K*	Connect to K on C-wire adapter
U/U	Relay for humidifier, dehumidifier, ventilator, economizer, or extra heat or cool stage.	U/U	Relay for humidifier, dehumidifier, ventilator, economizer, or an auxiliary heat stage.
L/A	Connect to economizer fault alert. Could alternately be used as an input from a remote setback switch. S1000, S1100 and S1200 models can use this to control a humidifier, dehumidifier, or ventilator.	L/A	Connect to heat pump fault monitor or economizer fault alert. Could alternately be used as an input from a remote setback switch. S1000, S1100 and S1200 models can use this to control a humidifier, dehumidifier, or ventilator.
W	Heat Stage 1	O/B	Changeover valve for heat pumps
W2	Heat Stage 2	AUX	Backup Heat (U can alternately be used for backup heat if powered off a separate transformer such as with a boiler)
		E	Emergency Heat when separate aux and E are selected during setup (not typical).
R	24 VAC Heating transformer	R	24 VAC Heating transformer
Rc	24 VAC Cooling transformer	Rc	24 VAC Cooling transformer

* The THP9045A C-wire adapter is used on heat/cool systems when you only have four wires at the thermostat and you need an extra wire for a common wire. Use the K terminal in place of the Y and G terminals on conventional or heat pump systems to provide control of the fan and the compressor through a single wire the unused wire then becomes the common wire. See THP9045A instructions for more information.

Terminals on EIM4010 or THM04R3000 Equipment Interface Module (EIM).

Conventional Systems		Heat Pump Systems
Terminal	Description	Terminal	Description
S1, S2, S3, S4 (Two of each)	Input for indoor sensor, outdoor sensor, floor sensor, RATS, DATS, Dry Contact Alert, or input from a remote setback switch.	S1, S2, S3, S4 (Two of each)	Input for indoor sensor, outdoor sensor, floor sensor, RATS, DATS, Dry Contact Alert, or input from a remote setback switch
Y	Compressor Stage 1	Y	Compressor Stage 1
Y2	Compressor Stage 2	Y2	Compressor Stage 2
G	Fan Relay	G	Fan Relay
C	Common from HVAC transformer when R is jumped to Rc. Common from separate transformer if R is not jumpered	C	Common from HVAC transformer when R is jumped to Rc. Common from separate transformer if R is not jumpered
U1, U2, U3 (Two of each)	Relay for humidifier, dehumidifier, ventilator, economizer, or extra cool stages	U1, U2, U3 (Two of each)	Relay for humidifier, dehumidifier, ventilator, or economizer,
L	Economizer fault alert	L	Connect to compressor monitor
O/B	Not used for conventional applications	O/B	Changeover valve for heat pumps
W1	Heat Stage 1	W1	Not used for heat pump applications
W2	Heat Stage 2	AUX1	Stage 1 of AUX/EM heat
W3	Heat Stage 3	AUX2	Stage 2 of AUX/EM heat
R	24V from transformer to power EIM	R	24V from transformer to power EIM
Rc	24 VAC Cooling transformer	Rc	24 VAC Cooling transformer
Rh	24 VAC Heat transformer	Rh	24 VAC Heat transformer

2-Pipe Fan Coil Unit Terminals

2-pipe fan coil unit terminals at thermostat/UWP when EIM is not used

Terminal	Description
Rc R	R and Rc are usually jumpered together (slider switch up) on a 2-pipe FCU with the 24 VAC hot to R. If the Aux Heat is powered by a separate transformer you may slide the R/Rc switch down, then aux heat is wired to R and Aux. FCU is wired to Rc, C, Y, G, etc.
C	24 VAC common from fan coil unit transformer
Y	Heat/Cool relay
W	Not used on 2-pipe fan coil unit
G	Low speed fan
Y2	Medium speed fan when 3 fan speeds are selected. High when 2 fan speeds are selected.
U (Upper U terminal)	High speed fan if 3 fan speeds are selected. U slider switch must be up If fan only has 2 speeds, If there are only 2 fan speeds, U can be used for a humidifier, dehumidifier, or ventilator.
Aux / W2	Auxiliary Heat (Some 2-pipe fan coil units do not have auxiliary heat)
S, S*	Optional wired 10K/20K pipe sensor for changeover.
L/A - A*	Choose one: Dry contact switch input for pipe changeover from Heat to Cool, or input from a remote setback switch. S1000, S1100 and S1200 models could alternately use this as a 24 VAC output to control a humidifier, dehumidifier, or ventilator.
O/B	Not used on 2-pipe fan coil unit

*The ElitePRO™ Series Thermostat uses either a wired 10K or 20K pipe sensor to the S terminals, or a dry contact switch to L/A to tell the thermostat whether the pipe is hot or cold. The ISU settings allow you to choose the method being used. If a dry contact switch is wired to L/A, the thermostat allows you to use the S terminals for a wired indoor or outdoor sensor or wire to a switch that triggers a dry contact alert or remote setback.

2-pipe fan coil unit terminals when EIM is used

Terminal	Description
R Rc Rh	Typically R, Rh and Rc would be jumpered together for a 2-pipe fan coil unit with that transformer wired to R and C. If jumpers are removed, R and C power the EIM, Rc is the 24 volt hot from fan coil unit. Rh and Aux may be used for an auxiliary heat source if that source is powered by a separate transformer. If using the L/A for Heat/Cool changeover, R and Rc must be jumped
C	24 VAC common from the transformer powering the fan coil unit.
Y	Heat/Cool relay
W	Not used on 2-pipe fan coil unit
G	Low speed fan
Y2	Medium speed fan when 3 fan speeds selected. High speed when 2 speeds are selected.
U1, U2, U3	High speed fan when 3 speeds are selected. During setup, select which U contacts are used for this. Jumper one of the U terminals from the set selected to R as shown in wiring diagrams. Other U terminals can control a humidifier, dehumidifier, or ventilator.
Aux1	Auxiliary Heat (Some 2-pipe fan coil units don’t have Auxiliary Heat)
S1, S2, S3, S4*	Optional wired 10K/20K pipe sensor for changeover the Set of S terminals used for this is selected during setup. The other 3 sets of S terminals could be used for an optional 10K/20K wired indoor sensor, 10K wired outdoor sensor, dry contact alert, or remote setback with dry contact occupancy sensor
L*	Input for pipe changeover switch from Heat to Cool
OB	Not used on 2-pipe fan coil unit

* The ElitePRO™ Series Thermostat uses either a wired 10K or 20K pipe sensor to the S terminals, or a dry contact switch to L to tell the thermostat whether the pipe is hot or cold. The ISU settings allow you to choose the method being used.

4-Pipe Fan Coil Unit Terminals

4-pipe fan coil unit terminals at thermostat /UWP when EIM is not used

Terminal	Description
R Rc	R and Rc must be jumpered together (slider switch up) on a 4-pipe FCU with the 24 VAC hot from FCU transformer to R. If the Aux Heat is powered by a separate transformer an isolation relay will be needed from the Aux terminal on UWP
C	24 VAC common from fan coil unit transformer
Y	Cool relay
W	Heat relay
G	Low speed fan
Y2	Medium speed fan when 3 fan speeds are selected. High when 2 fan speeds are selected.
U (Upper U terminal)	High speed fan if 3 fan speeds are selected. U slider switch must be up If fan only has 2 speeds, If there are only 2 fan speeds, U can be used for a humidifier, dehumidifier, or ventilator.
Aux/W2	Auxiliary Heat
S,S	Optional 10K/20K wired indoor sensor or 10K wired outdoor sensor , or input from a dry contact alert switch.
L/A - A	Optional input from remote setback switch. S1000, S1100 and S1200 models could alternately use this as a 24 VAC output to control a humidifier, dehumidifier, or ventilator.
O/B	Not used on 4-pipe fan coil unit

4-pipe fan coil unit terminals when EIM is used

Terminal	Description
R Rc Rh	Typically R/Rh/Rc terminals are all jumpered together for this application. Rh, and Rc must be jumpered together for a 4-pipe fan coil unit.The R jumper may be removed to power the EIM with a separate transformer unless the L is used for changeover. If Aux Heat is powered off a separate transformer, an isolation relay would be needed.
C	24 VAC common from the transformer powering the fan coil unit.
Y	Cool relay
W	Heat relay
G	Low speed fan
Y2	Medium speed fan when 3 fan speeds selected. High speed when 2 speeds are selected.
U1, U2, U3	High speed fan when 3 speeds are selected. During setup, select which U contacts are used for this. Jumper one of the U terminals from the set selected to R as shown in wiring diagrams. Other U terminals can control a humidifier, dehumidifier, or ventilator.
Aux1	Auxiliary Heat (Some 4-pipe fan coil units don’t have auxiliary heat)
S1, S2, S3, S4	Any set of S terminals can be used for an optional 10K/20K wired indoor sensor, a 10K wired outdoor sensor, dry contact alerts, or remote setback with dry contact occupancy sensor.
O/B	Not used on 4-pipe fan coil unit