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Фрагмент инструкции
Field connections for RTU- --MP sensors will be made at the Phoenix connectors on the RTU- --MP board. The factory- --installed RTU- --MP control includes the supply- --air temperature (SAT) sensor. The outdoor air temperature (OAT) sensor is included in the FIOP/accessory EconoMi$ert2 package. Refer to Table 2, RTU- --MP Controller Inputs and Outputs for locations of all connections to the RTU- --MP board. Fig. 33 - --RTU- --MP Multi- --Protocol Control Board C07129 548J*14D C10024 Fig. 34 - --548J*14D Control Box Component Locations 19 20 C10322 Fig. 35 -- RTU--MP System Control Wiring Diagram 548J*14D Table 2 – RTU- --MP Controller Inputs and Outputs POINT NAME BACnet OBJECT NAME TYPE OF I/O CONNECTION PIN NUMBERS INPUTS Space Temperature Sensor sptsens AI (10K Thermistor) J20--1, 2 Supply Air Temperature sat AI (10K Thermistor) J2---1, 2 Local Outside Air Temperature Sensor oatsens AI (10K Thermistor) J2---3, 4 Space Temperature Offset Pot sptopot AI (100K Potentiometer) J20--3 Indoor Air Quality iaq AI (4--20 ma) J4---2, 3 Outdoor Air Quality oaq AI (4--20 ma) J4---5, 6 Safety Chain Feedback safety DI (24 VAC) J1---9 Compressor Safety compstat DI (24 VAC) J1---2 Fire Shutdown firedown DI (24 VAC) J1--10 Enthalpy Switch enthalpy DI (24 VAC) J2---6, 7 Humidistat Input Status humstat DI (24 VAC) J5---7, 8 CONFIGURABLE INPUTS* Space Relative Humidity sprh AI (4--20 ma) J4--2,3 or J4--5,6Outside Air Relative Humidity oarh AI (4--20 ma) Supply Fan Status fanstat DI (24 VAC) J5---1,2 or J5---3,4 or J5 5,6 or J5---7,8Filter Status filtstat DI (24 VAC) Remote Occupancy Input remocc DI (24 VAC) OUTPUTS Economizer Commanded Position econocmd 4---20ma J2---5 SupplyFan RelayState sf DO Relay (24VAC , 1A) J1---4 Compressor 1 Relay State comp_1 DO Relay (24VAC , 1A) J1---8 Compressor 2 Relay State comp_2 DO Relay (24VAC , 1A) J1---7 Heat Stage 1 Relay State heat_1 DO Relay (24VAC , 1A) J1---6 Heat Stage 2 Relay State heat_2 DO Relay (24VAC , 1A) J1---5 Power Exhaust Relay State aux_2 DO Relay (24VAC , 1A) J11--3 Dehumidification Relay State humizer DO Relay (24VAC, 1A) J11--7, 8 LEGEND AI ---Analog Input AO ---Analog Output DI ---Discrete Input DO - ---Discrete Output * These inputs (if installed) take the place of the default input on the specific channel according to schematic. Parallel pins J5---1 = J2---6, J5---3 = J1---10, J5---5 = J1---2 are used for field---installation. The RTU- --MP controller requires the use of a Bryant space sensor. A standard thermostat cannot be used with the RTU- --MP system. Supply Air Temperature (SAT) Sensor — On FIOP- --equipped 548J*14D unit, the unit is supplied with a supply- --air temperature (SAT) sensor (33ZCSENSAT). This sensor is a tubular probe type, approx 6- --inches (12.7 mm) in length. It is a nominal 10- --k ohm thermistor. SUPPLY AIR The SAT is factory- --wired. The SAT probe is wire- --tied to the supply- --air opening (on the horizontal opening end) in its shipping position. Remove the sensor for installation. Re- --position the sensor in the flange of the supply- --air opening or in the supply air duct (as required by local codes). Drill or punch a 1/2- --in. hole in the flange or duct. C10020 Fig. 36 - --Typical Mounting Location for Supply Air Use two field- --supplied, self- --drilling screws to secure the sensor probe in a horizontal orientation. See Fig. 36. Temperature (SAT) Sensor on Small Rooftop Units SUPPLY AIR RETURN AIR TEMPERATURE SENSOR ROOF CURB 548J*14D 21 548J*14D548J*14D Outdoor Air Temperature (OAT) Sensor — The OAT is factory- --mounted in the EconoMi$er2 (FIOP or accessory). It is a nominal 10k ohm thermistor attached to an eyelet mounting ring. EconoMi$er2 — The RTU- --MP control is used with EconoMi$er2 (option or accessory) for outdoor air management. The damper position is controlled directly by the RTU- --MP control; EconoMi$er2 has no internal logic device. Outdoor air management functions can be enhanced with field- --installation of these accessory control devices: Enthalpy control (outdoor air or differential sensors) Space CO2 sensor Outdoor air CO2 sensor Field Connections Field connections for accessory sensors and input devices are made the RTU- --MP, at plugs J1, J2, J4, J5, J11 and J20. All field control wiring that connects to the RTU- --MP must be routed as shown in Fig. 28. This routing provides the UL required clearance between high- --and low- --voltage wiring. Connect to the wires to the removable Phoenix connectors and then reconnect the connectors to the board. Space Temperature (SPT) Sensors — A field- --supplied Bryant space temperature sensor is required with the RTU- --MP to monitor space temperature. There are 3 sensors available for this application: S 33ZCT55SPT, space temperature sensor with override button S 33ZCT56SPT, space temperature sensor with override button and setpoint adjustment S 33ZCT59SPT, space temperature sensor with LCD (liquid crystal display) screen, override button, and setpoint adjustment Use...