Carrier EDGE Pro Installation Instructions Manual

Contents

Carrier EDGE Pro Installation Instructions Manual Manual pdf 2 page image

2As a single-piece unit, all required wiring must be brought tothe ECM for connection to the terminal strip. In two-piece con-figuration, the DM can be mounted in the space while the ECMmay be mounted near the equipment, always within the buildingspace and not outdoors.Connection from the DM to the ECM requires only twowires. All other control wires are connected to the ECM from theHVAC (heating, ventilation, and air conditioning) equipment.This configuration results in a slimmer profile and locates theECM containing the switching relays away from the occupiedspace so relay clicking will not be heard.Installer should determine whether control will be installed assingle-piece or two-piece. In single-piece configuration, as manyas 14 wires may need to run to wall mounting location for con-nection to the control. In two-piece configuration, the DM andECM are connected by two wires.Outdoor Temperature Sensor — The outdoor airtemperature sensor is not included with the thermostat. It isavailable as an accessory (part no. 33ZCSENOAT). Plan instal-lation so that 2 wires can be run from equipment control moduleto an outdoor location, preferably on the north side of the build-ing or refer to Installation Instructions included with the outdoortemperature sensor for simplified connection. Details are provid-ed in sensor instructions.Remote Indoor Temperature Sensor — A re-mote temperature sensor can be used where it is desirable to in-stall the control in a limited access location while measuring thetemperature in the space. The remote sensor can be used as astand-alone device or averaged with a local sensor(s).NOTE: Carrier sensor part no. 33ZCT55SPT would be used forremote space sensing averaging. Sensors must be used as a sin-gle sensor, 4 sensors, or 9 sensors, with total sensor wiring not toexceed 1,000 ft. The 33ZCSENSAT sensor would be used forsupply and return sensing.INSTALLATIONThermostat Location — The thermostat should bemounted:• approximately 5 ft from the floor• close to or in a frequently used space, preferably on aninside wall• on a section of wall without pipes or ductwork• where temperature operating limits are within –67 to257 F (–55 to 125 C)• where humidity operating range is within 0 to 95% rela-tive humidity, non-condensing• always secured to the wall with wire nutsThe thermostat should NOT be mounted:• close to a window, on an outside wall, or next to a doorleading to the outside• where exposed to direct light and heat or any other tem-perature-radiating object which may cause false readings• close to or in direct airflow from supply registers or returnair grille in areas with poor air circulation• outside of the building exposed to the elementsWiring Requirements• All system wiring must be in compliance with all applica-ble local and national codes.• All sensor wiring should be color coded in conformancewith the standard recommendations.• Never remove the thermostat board from the plastic hous-ing. Doing so could warp and damage the components onthe board.• The sensor wiring must be completely separated from thethermostat or any other control wiring and must not be inthe same conduit as high voltage wiring. Refer to the sen-sor documentation for specific wiring instructions.• Wiring specifications from the thermostat to the sensor are22 AWG (American Wire Gage) unshielded for a distanceof less than 100 ft. It is recommended for lengths greaterthan 100 ft to use shielded 22 AWG wire for increasednoise immunity. Wire length should not exceed 1,000 ft.• For wiring the control module to the equipment, the dis-tance should be no more than 100 ft when using 22 AWGwire, and no more than 300 ft when using 18 AWG wire.The rule is the same for wiring the control module to thedisplay module: no more than 100 ft when using 22 AWGwire, and no more than 300 ft when using 18 AWG wire.Two-Piece Installation — For two-piece installation,perform the following procedure.1. Turn off all power to equipment.2. If an existing thermostat is being replaced:a. Remove existing control from wall.b. Disconnect wires from existing thermostat, one at atime. As each wire is disconnected, record the wirecolor and terminal marking.c. New or additional wires may be needed to accom-modate added humidity outputs.d. Discard or recycle old control.3. Remove mounting plate from back of display module bypressing the two tabs on the bottom edge and pulling away.See Fig. 1. Figure 2 shows the mounting plate removedfrom the module.4. Route wires through large hole in mounting base. Levelmounting base against wall (for aesthetic purposes only,the display module does not need to be leveled for properoperation) and mark wall through 2 mounting holes. SeeFig. 3.5. Drill two 3/16-in. mounting holes in the wall where marked.The control module may be mounted to a standard junctionbox, if desired. Make sure the hole pattern on the controlmodule mounting base matches the junction box mountingholes.CAUTIONFailure to follow the recommended wiring practices couldresult in damage to the thermostat and/or property.CAUTIONMount the ECM (equipment control module) in a suitableindoor location, either near or on the indoor equipment.The ECM should not be mounted to indoor ductwork orbelow any other controls or equipment (for example, ahumidistat or humidifier).Failure to follow this practice could result in damage toequipment and/or property.