Carrier 50TCQD14 Installation Instructions Manual

Also see for 50TCQD: Installation instructions

Contents

28Outputs —Actuator signal: 2--10 Vdc; minimum actuator impedanceis 2k ohm; bus two--wire output for bus communicatingactuators.Exhaust fan, Y1, Y2 and AUX1 O:All Relay Outputs (at 30 Vac):Running: 1.5A maximumInrush: 7.5A maximumEnvironmental —Operating Temperature: --40 to 150_F (--40 to 65_C).Exception of display operation down to --4_F with fullrecovery at --4_F from exposure to --40_FStorage Temperature: --40 to 150_F (--40 to 65_C)Shipping Temperature: --40 to 150_F (--40 to 65_C)Relative Humidity: 5% to 95% RH non--condensingEconomizer Module Wiring Details —Use Fig. 43 and Tables 7 and 8 to locate the wiringterminals for the economizer module.NOTE: The four terminal blocks are removable. You canslide out each terminal block, wire it, and then slide itback into place.W7220 ControllerLeft TerminalBlock LabelRight TerminalBlock LabelNOTE: The bottom 4 Pin actuator header is not usedC14156Fig. 43 -- W7220 Economizer Module TerminalConnection LabelsS--Bus Sensor Wiring —The labels on the sensors and controller are color codedfor ease of installation. Orange labeled sensors can onlybe wired to orange terminals on the controller. Brownlabeled sensors can only be wired to S--Bus (brown)terminals. Use Fig. 44 and Table 9 to locate the wiringterminals for each S--Bus sensor.Use Fig. 44 and Table 10 to set the DIP switches for thedesired use of the sensor.Table 7 – Economizer Module --Left Hand Terminal BlocksLabel Type DescriptionTop Left Terminal BlockMATMAT20k NTCandCOMSupply Air Temperature Sensor(polarity insensitive connection)OATOAT20k NTCandCOMOutdoor Air Temperature Sensor(polarity insensitive connection)S--- BUSS--- BUSS--- Bus(Sylk* Bus)Enthalpy Control Sensor(polarity insensitive connection)Bottom Left Terminal BlockIAQ 2--- 10 2--- 10 Vdc Air Quality Sensor Input(e.g. CO 2 sensor)IAQ COM COM Air Quality Sensor CommonIAQ 24V 24 Vac Air Quality Sensor 24 Vac SourceACT 2--- 10 2--- 10 Vdc Damper Actuator Output (2--- 10 Vdc)ACT COM COM Damper Actuator Output CommonACT 24V 24 Vac Damper Actuator 24 Vac Sourcen/a The bottom pin is not used.Table 8 – Economizer Module --Right Hand Terminal BlocksLabel Type DescriptionTop Right Terminal Blockn/a The first pin is not usedAUX2 I 24 Vac IN Shut Down (SD) or Heat (W)Conventional onlyorHeat Pump Changeover (O/B) inHeat Pump mode.OCC 24 Vac IN Occupied / Unoccupied InputE--- GND E--- GND Earth Ground --- System RequiredEXH1 24 Vac OUT Exhaust Fan 1 OutputAUX1 O 24 Vac OUT Programmable:Exhaust fan 2 outputorErvorSystem Alarm outputBottom Right Terminal BlockY2--- I 24 Vac IN Y2 in --- Cooling Stage 2 Input fromspace thermostatY2--- O 24 Vac OUT Y2 out --- Cooling Stage 2 Output tostage 2 mechanical coolingY1--- I 24 Vac IN Y1 in --- Cooling Stage 1 Input fromspace thermostatY1--- O 24 Vac OUT Y1 out --- Cooling Stage 1 Output tostage 1 mechanical coolingC COM 24 Vac CommonR 24 Vac 24 Vac Power (Hot)* Sylk is a trademark of Honeywell International Inc.