Carrier WeatherMaker 50TCQ07 Installation Instructions Manual

Also see for WeatherMaker 50TCQ*07: Product data

24User InterfaceProvides status for normal operation, setup parameters, check-out tests, and alarm and error conditions with a 2-line 16 char-acter LCD display and four button keypad.Electrical• Rated Voltage — 20 to 30 vac RMS, 50/60 Hz• Transformer — 100 va maximum system input• Nominal Power Consumption (at 24 vac, 60 Hz) —11.5 VA without sensors or actuators• Relay Digital Output Rating at 30 vac (maximum powerfrom Class 2 input only) — 1.5A run:3.5A inrush at 0.45PF (200,000 cycles) or7.5A inrush at 0.45PF (100,000 cycles)• External Sensors Power Output — 21 vdc ± 5% at 48mAINPUTSSensorsNOTE: A Mixed Air (MA) analog sensor is required on allW7220 units; either an Outdoor Air (OA) sensor for dry bulbchange over or an OA bus sensor for outdoor enthalpy changeover is required in addition to the MA sensor. An additionalReturn Air (RA) bus sensor can be added to the system for dif-ferential enthalpy or dry bulb changeover. For differential drybulb changeover, a 20k ohm sensor is required in the OA and abus sensor in the RA. DIP switch on RA bus sensor must be setin the RA position.Dry Bulb Temperature (optional) and Mixed Air (required),20k NTC2-wire (18 to 22 AWG);Temperature range –40°F to 150°F (–40°C to 66°C)Temperature accuracy: 0°F/+2°FTemperature and Humidity, C7400S1000 (optional)S-Bus; 2-wire (18 to 22 AWG)Temperature: range –40°F to 150°F (–40°C to 65°C)Temperature accuracy: 0°F/+2°FHumidity: range 0 to 100% RH with 5% accuracy.NOTE: Up to three (3) S-Bus sensors may be connected to theW7220 economizer module for outdoor air (OA), return air (RA)and discharge (supply) air (DA).4 Binary Inputs1-wire 24 vac + common GND (see page 25 for wiring details).24 vac power supply20 to 30 vac 50/60Hz; 100 VA Class 2 transformer.OUTPUTSActuator Signal2 to 10 vdc; minimum actuator impedance is 2k ohm; bus two-wire output for bus communicating actuators.Exhaust fan, Y1, Y2 and AUX1 OAll Relay Outputs (at 30 vac):Running: 1.5A maximumInrush: 7.5A maximumENVIRONMENTALOperating Temperature–40°F to 150°F (–40°C to 65°C).Exception of display operation down to –4°F with full recoveryat –4°F from exposure to –40°FStorage Temperature–40°F to 150°F (–40°C to 65°C)Shipping Temperature–40°F to 150°F (–40°C to 65°C)Relative Humidity5% to 95% RH non-condensingECONOMIZER MODULE WIRING DETAILSUse Fig. 42 and Tables 9 and 10 to locate the wiring terminalsfor the Economizer module.NOTE: The four terminal blocks are removable. Slide out eachterminal block, wire it, and then slide it back into place.Fig. 42 — W7220 Wiring TerminalsIMPORTANT: All inputs and outputs must be Class 2 wiring.NAAUX2-OCCE-GNDEXH1AUX1-OY2-Y1-Y2-OY1-OCR50048848-002Rev. ANAA2OCCEXA1Y2IY2OY1IY1OCRCert ProductCalifornia Title 24,Part 6HJW10www.energy.ca.govMATMATOATOATS-BUSS-BUSIAQ 2-10IAQCOMIAQ 24VACT 2-10ACT COMACT 24VMAMAOAOASBSBSBSBSBSBVCRVCRNA50040839-001Rev. G