INSTALLATION INSTRUCTIONS COMMERCIAL THERMOSTAT P/N 33CS400-01 DIGITAL IGITAL THERMOSTAT NON-PROGRAMMABLE NON-PROGRAMMABLE & HEAT COOL I2:00 HEAT PUMP 3 Configurable Outputs Control up to 3 Heat & 2 Cool Stages Backlit Display & Button Legends Aux Heat Indicator Dry Contact Equipped Set Point Limiting Remote Sensor Ready Outdoor Sensor Ready Pm Su 74 COOL AUTO 72 HEAT Accepts EZ Programmer Accepts Optional Humidity Module: Controls Humidification, Dehumidification and Reheat Accepts Optiona
CAUTION Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. CAUTION NEVER PUT MORE THAN ONE JUMPER ON THE SAME MISC JUMPER BLOCK! THIS MAY DAMAGE YOUR THERMOSTAT AND VOID YOUR WARRANTY. MISC1 MISC1 OK NOTE: Due to variations in environmental conditions, it is not always possible to achieve the desired humidification or dehumidification setpoint. This device complies with Part 15 of the FCC Rules.
Table of Contents Preparation Remove & Replace the Old Thermostat Configuring the MISC Outputs Wire Connections Sample Wiring Diagrams Test Operation Calibrating the Thermostat Sensors TroubleShooting Page iii 1 2 3 4 5 6 7 8
SECTION 1 Preparation 1 Proper installation of the thermostat will be accomplished by following these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance. Assemble tools Flat Blade Screwdriver Wire cutter & Stripper Make sure your Heater/Air Conditioner is working properly before beginning installation of the thermostat. Carefully unpack the thermostat. Save the screws, bracket, and instructions.
SECTION 2 Remove & Replace the Old Thermostat Remove the cover of the old thermostat. If it does not come off easily check for screws. 2 Loosen the screws holding the thermostat base or subbase to the wall, and lift away. Disconnect the wires from the old thermostat. Tape the ends of the wires as you disconnect them, and mark them with the letter of the terminal for easy reconnection to the new thermostat. Keep the old thermostat for reference purposes until your new thermostat is functioning properly.
SECTION 3 Configuring the MISC Outputs 3 Section 3 Contents: Configuring the Jumpers........3.2 Explanation of Jumper Settings..................................3.3 Page 3.
Configuring the Jumpers For additional flexibility, your thermostat has three configurable 3 outputs. These outputs are designed to have different functions depending on how the jumpers are set (below). Each output, labeled MISC1, MISC2, and MISC3 may be set for one of the six choices available.
Explanation of Jumper Settings 3 W3 JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal on the backplate will control a third stage of heat. W3 MULTI-STAGE OPERATION EXPLAINED - SECTION 13 of the Owner’s Manual The 3rd Stage of Heat is turned on when: (A) The 1st and 2nd stages have been on for the time required (steps 27 and 28, page 13.6). It is adjustable from 0-60 minutes and the default And is two minutes.
Explanation of Jumper Settings (continued) 3 HUM JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw terminal on the backplate will control a humidification system.
Explanation of Jumper Settings (continued) 3 ECON JUMPER SETTING If the jumper for MISC2 and MISC3 is set to ECON, the corresponding MISC screw terminal on the backplate will be connected to an economizer. ECONOMIZER OPERATION - If your HVAC unit is equipped with an economizer system, the thermostat will provide power to the MISC1, MISC2, or MISC3 terminal of the thermostat when the thermostat is in an occupied time period.
SECTION 4 Wire Connections If the terminal designations on your old thermostat do not match those on the new thermostat, refer to the chart below, or the wiring diagrams 4 that follow. Wire from the old thermostat terminal marked Function Install on the new thermostat connector marked G or F Fan G Y1, Y or C Cooling Y1 W1, W or H Heating W1/O/B Rh, R, M, Vr, A Power R C Common C Rev.
SECTION 5 Sample Wiring Diagrams Section 5 Contents: 5 HVAC Equipment Wiring............5.2 MISC1, MISC2, and MISC3 Wiring........................................5.6 Remote Sensor and CK1-CK2 wiring for Time Clock...............5.8 Page 5.
6 Wire, 1 Stage Cooling, 1 Stage Heat Residential & Commercial 1 Stage Cooling, with 1st Stage Gas Heat OR Commercial Heat Pump 1 Stage Cooling with 2 Stage Heat 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND GAS (FAN) ELEC W1/O/B Y1 G MISC2 CK1 CKGND R C HP ELEC GAS (FAN) GAS W3 PROG HP GAS HUM DEHUM ECON MISC3 MISC2 MISC1 Y2 B (MISC1 ONLY) O W1 G NO HUM W2 Y1 HUM B MISC2 O RS+5 R INSTALL HUMIDITY MODULE WITH SENSING ELEMENT OUTWARD 24 vac return R Fan relay G Compressor relay W2 W
6 Wire, 1 Stage Cooling, 1 Stage Heat Residential & Commercial 1 Stage Cooling, with 1st Stage Electric Heat 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND GAS (FAN) ELEC W1/O/B Y1 G MISC2 CK1 CKGND R C HP ELEC GAS (FAN) GAS W3 PROG HP GAS HUM DEHUM ECON MISC3 MISC2 MISC1 Y2 B (MISC1 ONLY) O W1 HUM G NO HUM W2 Y1 B MISC2 O RS+5 24 vac return R Fan relay G Compressor relay W2 W1 Y1 24 vac common 1st stage heat circuit 2nd stage heat circuit INSTALL HUMIDITY MODULE WITH SENSING ELEMENT
6 Wire, 1 Stage Cooling, 2 Stage Heat Residential Heat Pump with O Reversing Valve 1 Stage Cooling, with 2 Stage Heat 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND GAS (FAN) ELEC W1/O/B Y1 G MISC2 CK1 CKGND R C HP ELEC GAS (FAN) GAS W3 PROG HP GAS HUM DEHUM ECON MISC3 MISC2 MISC1 Y2 B (MISC1 ONLY) O W1 G NO HUM W2 Y1 HUM B MISC2 O RS+5 R INSTALL HUMIDITY MODULE WITH SENSING ELEMENT OUTWARD RS1 RSGND R Fan Relay Reversing Valve O 2nd stage heat circuit W2 Y1 24 vac return G C C
6 Wire, 1 Stage Cooling, 2 Stage Heat Residential Heat Pump with b Reversing Valve 1 Stage Cooling, with 2 Stage Heat 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND GAS (FAN) ELEC W1/O/B Y1 G MISC2 CK1 CKGND R C HP ELEC GAS (FAN) GAS W3 PROG HP GAS HUM DEHUM ECON MISC3 MISC2 MISC1 Y2 B (MISC1 ONLY) O W1 HUM G NO HUM W2 Y1 B MISC2 O RS+5 R Fan Relay Reversing Valve b 2nd stage heat circuit W2 Compressor Relay RS1 RSGND Y1 24 vac return G 24 vac common INSTALL HUMIDITY MODULE WITH
Adding a 2nd Stage of Cooling (MISC1), Exterior Lighting System (MISC2), and 3rd Stage of Heating (MISC3) 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND W1/O/B Y1 G MISC2 CK1 CKGND R C W3 GAS (FAN) ELEC PROG W3 PROG HP GAS HUM DEHUM ECON MISC3 MISC2 MISC1 Y2 B (MISC1 ONLY) O W1 W2 G HUM Y1 NO HUM HUM MISC2 DEHUM R C ECON Y2 MISC3 MISC2 MISC1 (MISC1 ONLY) 3rd Stage Heat 2nd Stage Cooling Y2 W3 Exterior Lighting Page 5.
Adding a Humidification System* (MISC1), Dehumidification System* (MISC2), and controlling an Economizer (MISC3). 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND W1/O/B Y1 G MISC2 CK1 CKGND R C ELEC GAS HUM (FAN) W3 W3 PROG PROG HP NO HUM GAS HUM DEHUM Y2 B (MISC1 ONLY) O HUM Y1 G NO HUM MISC1 RS2 MISC2 MISC3 CK1 Dehumidification System Economizer Humidification System * Requires Humidity Module. Page 5.
CK1 and CK2 terminals wired to a Time Clock For instructions on wiring the optional Remote and Outside Sensors, please see page 15.2 of the Owner’s Manual 5 W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND W1/O/B Y1 G MISC2 CK1 CKGND R C 11 12 1 2 10 3 9 4 8 7 6 5 DRY CONTACT SWITCH - The terminals are ‘normally open’ (may be programmed for normally closed operation, see page 16.2 of the Owner’s Manual).
SECTION 6 Test Operation Turn the power on to the Heating/Air Conditioning system. 6 Press the MODE button repeatedly until the HEAT icon appears on the display. Press the UP or DOWN buttons until the set temperature is 10 degrees above room temperature; The furnace should turn on. Press the MODE button repeatedly until the COOL icon appears on the display. Press the UP or DOWN buttons until the set temperature is 10 degrees below room temperature; the air conditioner should turn on.
SECTION 7 Calibrating the Thermostat Sensors Under normal circumstances it will not be necessary to adjust the calibration of the temperature and humidity sensors. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure. I2:00 Su MODE MODE FAN Place the thermostat in the OFF mode. Press and hold the MODE button. While holding the MODE button, press and hold the FAN button for 5 seconds. All icons will appear on the display.
SECTION 8 TroubleShooting SYMPTOM: The air conditioning does not attempt to turn on. CAUSE: The compressor timer lockout may prevent the air conditioner from turning on, for a period of time. REMEDY: Consult the Owner's Manual in the Setup section to defeat the cycles per hour and compressor timeguard. 8 SYMPTOM: The display is blank. CAUSE: Lack of proper power. REMEDY: Make sure power is turned on to the furnace and that you have 24vac between R & W. If C is used, 24vac between R & C.
TroubleShooting SYMPTOM: When controlling a residential heat pump, and asking for cooling, the heat comes on. CAUSE: The thermostat reversing valve jumper is set for “b”. REMEDY: Set the reversing valve jumper for “O”. See pages 5.4 and 5.5. SYMPTOM: When calling for cooling, both the heat 8 and cool come on. CAUSE: The thermostat equipment jumper is configured for “HP” and the HVAC unit is a Gas/Electric. REMEDY: Set the equipment jumper for “Gas”. See pages 5.2 and 5.3.