Carrier RHW036-060 Скачать руководство пользователя страница 18 | Manualshive

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Carrier RHW036-060 Скачать руководство пользователя страница 18

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Specifications subject to change without notice.

18

COMMERCIAL DEFROST CONTROL
On RHW units equipped with electro-mechanical controls

the Defrost Control Board (DFB) coordinates thermostat de

-

mands for supply fan control, 1 or 2 stage cooling, 2 stage

heating, emergency heating and defrost control with unit op

-

erating sequences. The DFB also provides an indoor fan off

delay feature (user selectable). The DFB also provides an

indoor fan off delay feature (user selectable). See Fig. 29 for

board arrangement.

The DFB is located in the main control box of the RHW unit

(see Fig. 30). All connections are factory-made through har

-

nesses to the UCB (unit control board) to the ECM (direct-

drive motor), reversing valve solenoids and to defrost

thermostats. Refer to Table 3 for details of DFB Inputs and

Outputs.

Fig. 29 — Defrost Control Board Arrangement

Fig. 30 — Defrost Control Board Location - RHW036-060 Electro-Mechanical Units

DIP
SWITCHES

SPEED-UP
JUMPERS

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Содержание RHW036-060

Страница 1: ...ors 36 COMPLETING RETURN AIR SMOKE SENSOR INSTALLATION ADDITIONAL APPLICATION DATA Step 12 Adjust Factory Installed Options 37 SMOKE DETECTORS ECONOMI ER IV OCCUPANCY SWITCH Step 13 Install Accessorie...

Страница 2: ...ON AND SAFETY HAZARD Failure to follow this warning could cause personal inju ry death and or equipment damage R 410A refrigerant systems operate at higher pressures than standard R 22 systems Do not...

Страница 3: ...e K voltage code models the following are not available as factory installed options Coated or copper fin coils Economizers and 2 position damper Powered convenience outlet 1 See Specification Sheet f...

Страница 4: ...4 Specifications subject to change without notice 527 01 2701 00 Fig 2 RHW036 060 Unit Dimensional Drawing...

Страница 5: ...527 01 2701 00 Specifications subject to change without notice 5 Fig 2 RHW036 060 Unit Dimensional Drawing cont...

Страница 6: ...6 Specifications subject to change without notice 527 01 2701 00 Fig 2 RHW036 060 Unit Dimensional Drawing cont...

Страница 7: ...ed ductwork at unit duct openings 6 Install outdoor air hood 7 Install condensate line trap and piping 8 Make electrical connections 9 Install other accessories FRAME MOUNTED INSTALLATION Frame mounte...

Страница 8: ...BER TITLE 1041738 CURB ASY ROOF ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CHECKER D 48TC400427 B WEIGHT MMC 06 17 11 SHEET 5 OF 5 SURFACE FINISH MF...

Страница 9: ...n place The red drain pan can be tightened with a 1 2 in square socket drive extension For further details see Step 10 Install External Condensate Trap and Line on page 12 Before setting the unit onto...

Страница 10: ...o the flanges Insulate and weatherproof all external ductwork joints and roof or building openings with counter flashing and mastic in accordance with applicable codes Do not cover or obscure visibili...

Страница 11: ...installed on the unit the hood shipped with the unit will not be used and must be discarded Save the aluminum filter for use in the power exhaust hood assembly 1 The indoor coil access panel will be...

Страница 12: ...he convenience outlet s transformer primary are not factory connected Installer must connect these leads according to required operation of the conve nience outlet If an always energized convenience o...

Страница 13: ...the handle Fig 18 Power Wiring Connections Field Install the NFD Shaft and Handle 1 Remove the control box access panel The NFD enclosure is located below the control box see Fig 19 2 Remove 3 cap he...

Страница 14: ...wiring connections Provide a ground fault and short circuit over current protec tion device fuse or breaker per NEC Article 440 or local codes Refer to unit informative data plate for MOCP Max imum O...

Страница 15: ...t access is through the unit s control box access panel See Fig 21 The primary leads to the convenience outlet transformer are not factory connected Selection of primary power source is a customer opt...

Страница 16: ...does not get into the building or conduit in the interim Check tightness of connector lock nuts before connecting electrical conduits Field supplied and field installed liquid tight conduit connector...

Страница 17: ...nal features which might require addi tional conductors in the cable For wire runs up to 50 ft 15 m use no 18 AWG Ameri can Wire Gage insulated wire 35 C 95 F minimum For 50 to 75 ft 15 to 23 m use no...

Страница 18: ...delay feature user selectable The DFB also provides an indoor fan off delay feature user selectable See Fig 29 for board arrangement The DFB is located in the main control box of the RHW unit see Fig...

Страница 19: ...1 Heating cycle for an Emergency Heating sequence compressors are off and only the elec tric heaters are energized and also during the Defrost cycle to eliminate a cold blow condition in the space De...

Страница 20: ...value exceeds 60 A unit mounted supplementary fuses are required for each heater circuit These fuses are included in accessory Single Point Boxes with power distribution and fuse blocks The single poi...

Страница 21: ...e left of the Heater module Connect the VIO lead from Heater circuit 1 to terminal TB4 1 For 2 stage heating connect the VIO lead from Heater circuit 2 to terminal TB4 2 See Fig 36 Fig 36 Accessory El...

Страница 22: ...22 Specifications subject to change without notice 527 01 2701 00 Fig 37 Typical Control Wiring Diagram Electro Mechanical with W7220 RHW036 060 208 230 3 60 Unit Shown...

Страница 23: ...527 01 2701 00 Specifications subject to change without notice 23 Fig 38 Typical Control Wiring Diagram Electro Mechanical with W7220 RHW036 060 460 575 3 60 Unit Shown...

Страница 24: ...24 Specifications subject to change without notice 24 Fig 39 Typical RHW036 060 Power Wiring Diagram 208 230 3 60 Unit Shown...

Страница 25: ...527 01 2701 00 Specifications subject to change without notice 25 Fig 40 Typical RHW036 060 Power Wiring Diagram 460 575 3 60 Unit Shown...

Страница 26: ...vailable with bus sensors User Interface Provides status for normal operation setup parameters checkout tests and alarm and error conditions with a 2 line 16 character LCD display and four button keyp...

Страница 27: ...ity Insensitive Connection Bottom Left Terminal Block IAQ 2 10 2 10 vdc Air Quality Sensor Input e g CO2 sensor IAQ COM COM Air Quality Sensor Common IAQ 24V 24 vac Air Quality Sensor 24 vac Source AC...

Страница 28: ...Enter button to display the first item in the currently displayed menu Press the Menu Up Exit button to exit a menu s item and return to the list of menus Fig 45 W7220 Controller Navigation Buttons To...

Страница 29: ...d stage cooling ON 24 Vac on terminal Y2 I OFF 0 Vac on terminal Y2 I COOL Y2 OUT OFF ON OFF SECOND STAGE COOLING RELAY OUTPUT Cool Stage 2 Relay Output to mechanical cooling Y2 OUT terminal MA TEMP _...

Страница 30: ...y sensor option Enthalpy boundary curves for economizing using single enthalpy DCV SET 1100ppm 500 to 2000 ppm increment by 100 DEMAND CONTROLLED VENTILATION SETPOINT Displays only if CO2 sensor is co...

Страница 31: ...ivate power exhaust EXH2 H SET 75 0 to 100 EXHAUST FAN 2 SETPOINT AT HIGH SPEED on 2 speed or 3 speed with 1 heat and 2 cool Based on economizer OA damper position to activate power exhaust SYSTEM SET...

Страница 32: ...perator to adjust for an out of calibration temperature sensor OA H CAL 0 RH 10 RH OUTSIDE AIR HUMIDITY CALIBRATION Allows for operator to adjust for an out of calibration humidity sensor RA T CAL 0 0...

Страница 33: ...onnected check wiring then replace sensor if the alarm continues RA SYLK H ERR N A N A DA SYLK T ERR N A N A DISCHARGE AIR S BUS SENSOR ERROR Discharge air sensor has failed or become disconnected che...

Страница 34: ...OA temperature and humidity input from the OA enthalpy sensor When the OA temperature OA humidity and OA dew point are all below the selected boundary the economizer sets the economizing mode to YES e...

Страница 35: ...YPE 2SPEED With stage 3 delay STG3 DLY in Advanced setup COOL Y2 OUT will be turned ON after the delay time specified N A Not applicable STATE FAN SPEED OCC Low Y1 Low Y2 High W High INPUTS OUTPUTS DE...

Страница 36: ...has been no keypad activity for at least 5 minutes the Alarms menu dis plays and cycles through the active alarms You can also navigate to the Alarms menu at any time Clearing Alarms Once the alarm h...

Страница 37: ...utdown terminals on the UCB and then attach the wiring harness from the smoke detector ECONOMI ER IV OCCUPANCY SWITCH See Fig 49 on page 38 for general EconoMi er IV wiring External occupancy control...

Страница 38: ...a multimeter to the Vdc terminals on the UCB 4 Set the Range Switch to either A B or C per the Switch Range table 5 Using a straight blade screwdriver turn the Vdc con trol dial to fine tune the Vdc...

Страница 39: ...5 2250 2375 2500 0 1 0 4 6 2 6 5 6 8 7 1 7 4 7 7 8 0 8 4 8 7 0 1 0 6 6 9 7 1 7 4 7 7 7 9 8 2 8 5 8 8 0 1 0 8 7 5 7 7 8 0 8 2 8 5 8 7 9 0 0 1 1 0 8 1 8 3 8 5 8 7 9 0 0 1 1 2 8 6 8 8 9 0 9 2 0 1 1 4 9 1...

Страница 40: ...tion operation and converging coil circuits during the condenser function operation Fig 52 Typical Piping Schematic Table 14 Cooling Mode each circuit COMPONENT STATUS POSITION Reversing Valve Energiz...

Страница 41: ......

Страница 42: ...Specifications are subject to change without notice 527 01 2701 00 2020 Carrier Lewisburg TN 37091 USA Replaces New...

Страница 43: ...e of obstructions and rotor spins freely Y N _____ Verify that scroll compressors are rotating in the correct direction Y N _____ Verify installation of thermostat Y N _____ III START UP ELECTRICAL Su...

Страница 44: ...CUT ALONG D OTTED LINE CUT ALONG DOTTED LINE CL 2 Specifications are subject to change without notice 7 2020 527 01 2701 00 2020 Carrier Lewisburg TN 37091 USA Replaces New...

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