Specifications

1) Dual-Mount Thermostat (Wall Thermostat) ................................................................. 2
A) Use ........................................................................................................................................................2
B) Keypad Layout and Display Icons .....................................................................................................2
C) Adjusting Setpoints.............................................................................................................................2
D) Unoccupied Override ..........................................................................................................................2
E) Remote Mounting (Wall Mounting) ....................................................................................................3
F) Thermostat Accessories.....................................................................................................................4
2) Discharge Air, Outdoor Air, and Room Air Sensors.................................................. 4
A) Description...........................................................................................................................................4
B) Sensor Location ..................................................................................................................................4
C) Measurement & Scale .........................................................................................................................5
D) Sensor Calibration...............................................................................................................................5
E) Sensing Room Temperature - Wall Thermostat vs. Room Air Temp. Sensor...............................5
3) System Diagnostics ...................................................................................................... 5
A) Sensor Diagnostics with Display Points - Preferred Method..........................................................5
B) Display of Controller Diagnostics with dual-mount thermostat.....................................................6
C) Initiating Controller Self-Diagnostics. ...............................................................................................6
D) Controller Lights (LEDs).....................................................................................................................7
4) Standard Inputs ............................................................................................................. 7
A) Water Coil Low Limit ...........................................................................................................................7
B) Occupancy Input .................................................................................................................................7
C) Change-over Input...............................................................................................................................7
D) Refrigerant Low Limit..........................................................................................................................7
5) Standard Outputs .......................................................................................................... 7
A) Outdoor Air / Return Air Damper Actuator .......................................................................................7
B) Face and Bypass Damper Actuator...................................................................................................8
C) 2-Pipe Valve Controlled Unit ..............................................................................................................8
D) 4-Pipe Valve Controlled Unit ..............................................................................................................8
E) Binary (Relay) Outputs........................................................................................................................8
6) Sequences of Operation ............................................................................................... 8
A) 2-Pipe unit (steam/water), Damper Control ......................................................................................9
B) 2-Pipe Unit (steam/water), Valve Control ........................................................................................10
C) 4-pipe unit (hot water or steam and chilled water), Damper Control ...........................................11
D) 4-pipe unit (hot water or steam and chilled water), Valve Control ...............................................12
E) Electric Heat Only..............................................................................................................................13
F) DX cooling only .................................................................................................................................14
G) DX Cooling with Electric Heat ..........................................................................................................15
H) DX Cooling with Wet Heat, Damper Control ...................................................................................16
I) DX Cooling with Wet Heat, Valve Control .......................................................................................17
J) Damper Controlled Chilled Water Cooling with Electric Heat ......................................................18
K) Valve Controlled Chilled Water Cooling with Electric Heat ..........................................................19
7) Typical Unit Wiring ...................................................................................................... 20
A) Control Diagram, 2-pipe Damper Control .......................................................................................20
B) Control Diagram, 2-pipe Valve Control ...........................................................................................21
C) Control Diagram, 4-pipe, Damper Control ......................................................................................22
D) Control Diagram, 4-pipe, Valve Control ..........................................................................................23
E) Control Diagram, DX with Electric Heat ..........................................................................................24
F) Power Diagram 115V Unit with DX output. .....................................................................................25
8) Parts List...................................................................................................................... 26
A) Standard Control Parts .....................................................................................................................26
B) Instructions for Ordering Replacement Controllers ......................................................................26
9) Troubleshooting Chart................................................................................................ 27
7/1/03 Part Number 011-200001-003 Page 1