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Fig. 58 — RTU Open Address Switches

Fig. 59 — Network Wiring

LOCAL ACCESS

Wall Mounted Equipment Touch — The Equipment Touch is

a wall mounted interface used to connect to the RTU Open to

access the control information, read sensor values, and mainte-

nance. This is an accessory interface that does not come with

the RTU Open controller. Wire the Equipment Touch interface

to the RTU Open’s J13 local access port. There are 2 password

protected levels in the display (User and Admin). See the

Equipment Touch Installation and Setup Guide for more infor-

mation. See Appendix A of the Equipment Touch Installation

and Setup Guide for navigation and screen content.

Field Assistant —

Field Assistant is a computer program in-

cluded with the purchase of the Tech Tool Kit (USB-TKIT).

This is a field Tech Tool to set-up, service, or download appli-

cation software to the RTU Open controller and includes a

USB link cable. The link cable connects a USB port to the J12

local access port. See Fig. 60.

RTU Open Troubleshooting —

Troubleshooting is accom-

plished by viewing the communication LEDs. The LEDs indi-

cate if the controller is speaking to the devices on the network.

The LEDs should reflect communication traffic based on the

baud rate set. The higher the baud rate the more solid the LEDs

will appear. See Table 26 and Fig 60.

Fig. 60 — PC Running Field Assistant

MSB

LSB

SW1

SW2

J19

NET+

NET

HLD

Connect to
computer’s
USB port

Connect to

the Local

Access port

USB Link Kit

RTU Open Controller

Access

Port

J12

LOCAL

ACCESS

PORT

GND

*Therm

UI-10

UI-11

SW3

COMM OPTION

CR2032

SW1

SW2

MSB

LSB

+12 DVC

Rnet-

Rnet+

GND

RNET

J12

J13

J15

J20

Содержание 580J*04A

Страница 1: ...ption Thru Base Connections Electrical Connections 19 Perfect Humidity Control Connections 20 Economi er X Factory Installed Option 22 Economizer Module Wiring Details 23 Interface Overview 24 RTU Open Control System 36 RTU Open Control System Field Connections 40 RTU Open Communication Wiring Protocols 43 Local Access 44 Outdoor Air Enthalpy Control 45 Smoke Detectors 45 Step 13 Adjust Factory In...

Страница 2: ...NOTE is used to highlight suggestions which will result in en hanced installation reliability or operation Rated Indoor Airflow cfm Table 1 lists the rated in door airflow used for the AHRI efficiency rating for the units covered in this document Table 1 AHRI Efficiency Rated Indoor Airflow WARNING Failure to follow this warning could result in personal injury or death Disconnect gas piping from u...

Страница 3: ...models only Coil Options For Round Tube Plate Fin Condenser Coil Models Only Outdoor Indoor Hail Guard A Al Cu Al Cu B Precoat Al Cu Al Cu C E coat Al Cu Al Cu D E coat Al Cu E coat Al Cu E Cu Cu Al Cu F Cu Cu Cu Cu M Al Cu Al Cu Louvered Hail Guard N Precoat Al Cu Al Cu Louvered Hail Guard P E coat Al Cu Al Cu Louvered Hail Guard Q E coat Al Cu E coat Al Cu Louvered Hail Guard R Cu Cu Al Cu Louve...

Страница 4: ...4 Fig 2 Unit Dimensional Drawing ...

Страница 5: ...5 Fig 2 Unit Dimensional Drawing cont ...

Страница 6: ...IA 54 84 1 In Canada installation must be in accordance with the CAN1 B149 installation codes for gas burning appliances Although unit is weatherproof avoid locations that permit water from higher level runoff and overhangs to fall onto the unit Locate mechanical draft system flue assembly at least 4 ft 1 2 m from any opening through which combustion products could enter the building and at least ...

Страница 7: ...rb In stallation Instructions for additional information as required Fig 4 Unit Leveling Tolerances Accessory roof curb details and dimensions are shown in Fig 5 Assemble and install accessory roof curb in accordance with instructions shipped with the curb NOTE The gasketing of the unit to the roof curb is critical for a watertight seal Install gasket supplied with the roof curb as shown in Fig 5 ...

Страница 8: ...IZATION OF CARRIER CORPORATION 1 DEC 2 DEC 3 DEC ANG MATERIAL AUTHORIZATION NUMBER TITLE 1041738 CURB ASY ROOF ENGINEERING 004 007 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 MFG PURCH MODEL INTERNAL USE ONLY NEXT DRAWING SCALE DISTRIBUTION PURCH N A MMC NOTES 1 ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLE...

Страница 9: ...etween the roof curb and the base rail inside on the duct end of the unit This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately 1 4 in 6 4 mm Although unit is weatherproof guard against water from higher level runoff and overhangs Flue vent discharge must have a minimum horizontal clear ance of 4 ft 1220 mm from electri...

Страница 10: ...The indoor coil access panel is used as the hood top while the hood sides divider and filter are packaged together attached to a metal support tray using plastic stretch wrap and shipped in the return air compartment behind the indoor coil access panel The hood assembly s metal tray is attached to the basepan and also attached to the damper using two plastic tie wraps 2 To gain access to the hood ...

Страница 11: ...tails Step 10 Install Gas Piping Installation of the gas piping must be accordance with local building codes and with applicable national codes In U S A refer to NFPA 54 ANSI Z223 1 National Fuel Gas Code NF GC In Canada installation must be accordance with the CAN CSA B149 1 and CAN CSA B149 2 installation codes for gas burning appliances This unit is factory equipped for use with Natural Gas fue...

Страница 12: ...TIONS GAS CONNECTIONS This service connection kit consists of a 1 2 in NPT gas adapter fitting brass a 1 2 in electrical bulkhead connector and a 3 4 in electrical bulkhead connector all factory installed in the embossed raised section of the unit basepan in the condenser section See Fig 15 Fig 15 Thru Base Connection Fittings The thru base gas connector has male and female threads The male thread...

Страница 13: ...line observe local codes pertaining to gas pipe installations Refer to the NFPA 54 ANSI Z223 1 NFGC latest edition in Canada CAN CSA B149 1 In the absence of local building codes adhere to the following pertinent recommendations 1 Avoid low spots in long runs of pipe Grade all pipe 1 4 in in every 15 ft 7 mm in every 5 m to prevent traps Grade all horizontal runs downward to risers Use risers to c...

Страница 14: ...the alternate bottom drain is not used check the drain plug for tightness prior to setting the unit on the roof curb Fig 22 Condensate Drain Piping Details All units must have an external trap for condensate drain age Install a trap at least 4 in 102 mm deep and protect against freeze up If drain line is installed downstream from the external trap pitch the line away from the unit at 1 in per 10 f...

Страница 15: ...o sure located under the main control box The manual switch handle and shaft are shipped in the disconnect enclosure Assemble the shaft and handle to the switch at this point Dis card the factory test leads see Fig 24 Connect field power supply conductors to LINE side termi nals when the switch enclosure cover is removed to attach the handle Fig 24 Location of Non Fused Disconnect Enclosure To fie...

Страница 16: ...ance with NEC requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker Canadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to determine the percentag...

Страница 17: ...122 31 40 31 124 460 3 60 STD 12 15 11 52 13 15 12 53 14 15 14 54 15 20 15 55 MED 12 15 11 52 13 15 12 53 14 15 14 54 15 20 15 55 HIGH 12 15 11 58 13 15 12 59 14 15 14 60 15 20 15 61 575 3 60 STD 9 15 9 42 11 15 11 44 11 15 11 44 13 15 13 46 MED 9 15 9 42 11 15 11 44 11 15 11 44 13 15 13 46 HIGH 9 15 9 46 11 15 11 48 11 15 10 48 13 15 13 50 580J 06 208 230 1 60 STD 40 60 37 150 42 60 40 152 44 60 ...

Страница 18: ...epan underneath the control box See Fig 28 Fig 28 Weatherproof Cover Shipping Location on Units with Factory Installed RTU Open Remove the blank cover plate at the convenience outlet Loosen the two screws at the GFCI duplex outlet until ap proximately 1 2 in 13 mm under screw heads are exposed Press the gasket over the screw heads Slip the backing plate over the screw heads at the keyhole slots an...

Страница 19: ...rical bulkhead connector allows the high voltage power wires to pass through the basepan See Fig 31 Check tightness of connector lock nuts before connecting electrical conduits Field supplied and field installed liquid tight conduit con nectors and conduit may be attached to the connectors on the basepan Pull correctly rated high voltage and low voltage through appropriate conduits Connect the pow...

Страница 20: ...er post 2 Feed wires through the raceway built into the corner post see Fig 32 to the 24 v barrier located on the left side of the control box The raceway provides the UL required clearance between high voltage and low voltage wiring 3 Use wire nuts to connect humidistat cable to two PINK leads in the low voltage wiring as shown in Fig 34 To connect the Edge Programmable Thermidistat T6 PRH01 A Se...

Страница 21: ...21 Fig 34 580J Size 07 Unit with Perfect Humidity Dehumidification System Humidistat Wiring ...

Страница 22: ...ich is powered by and communicates on the S Bus Up to three sensors may be con figured with the W7220 economizer module See page 23 for details CO2 Sensor optional A CO2 sensor can be added for Demand Controlled Ventilation DCV Specifications W7220 Economizer Module The module is designed for use with 2 to 10 Vdc or bus communicating actuator The mod ule includes terminals for CO2 sensor mixed air...

Страница 23: ...ure 40 to 150 F 40 to 65 C Humidity 5 to 95 RH non condensing ECONOMIZER MODULE WIRING DETAILS Use Fig 37 and Tables 9 and 10 to locate the wiring terminals for the Economizer module NOTE The four terminal blocks are removable Slide out each terminal block wire it and then slide it back into place Fig 37 W7220 Wiring Terminals S Bus Sensor Wiring The labels on the sensors and con troller are color...

Страница 24: ...ation Settings and parameter changes Menu structure and selection LABEL TYPE DESCRIPTION Top Right Terminal Blocks AUX2 I 24 vac IN The first terminal is not used OCC 24 vac IN Shut Down SD or HEAT W Conventional only and Heat Pump Changeover O B in Heat Pump mode E GND E GND Occupied Unoccupied Input EXH1 24 vac OUT Exhaust Fan 1 Output AUX1 O 24 vac OUT Programmable Exhaust fan 2 output or ERV o...

Страница 25: ...ble 13 illustrates the complete hierarchy of menus and parameters for the EconoMi er X system The Menus in display order are STATUS SETPOINTS SYSTEM SETUP ADVANCED SETUP CHECKOUT ALARMS NOTE Some parameters in the menus use the letters MA or MAT indicating a mixed air temperature sensor location before the cooling coil This unit application has the control sensor located after the cooling coil in ...

Страница 26: ...f measured mixed air from MAT sensor Displays _ _ _ F if not connected short or out of range DA TEMP _ _ _ F 0 to 140 F DISCHARGE AIR TEMPERATURE after Heating section Displays when Discharge Air sensor is connected and displays mea sured discharge temperature Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F 40 to 140 F OUTSIDE AIR TEMP Displays ...

Страница 27: ...is NOT connected VENTMAX With 2 speed fan units VENTMAX L low speed fan and VENTMAX H high speed fan settings are required 2 8 V 2 to 10 Vdc DCV MAXIMUM DAMPER POSITION Displays only if a CO2 sensor is connected Used for Vbz ventilation max cfm setpoint Displays 2 to 10 V if 3 sensors RA OA and MA In AUTO mode dampers controlled by CFM 100 to 9990 cfm increment by 10 If OA MA RA and CO2 sensors ar...

Страница 28: ...actory defaults when set to YES LCD will briefly flash YES and change to NO but all parameters will change to the fac tory default values NOTE RECHECK AUX2 IN and FANTYPE for required 2 speed values ADVANCED SETUP MA LO SET 45 F 35 to 55 F Incremented by 10 SUPPLY AIR TEMPERATURE LOW LIMIT Temperature to achieve Freeze Protection close damper and alarm if temperature falls below setup value FREEZE...

Страница 29: ...nals an ERV that the conditions are not good for economizing but are for ERV operation SYS 24 Vac out Issues a system alarm CONNECT EXH1 N A N A Closes the power exhaust fan 2 relay EXH1 ALARMS Alarms display only when they are active The menu title ALARMS includes the number of active alarms in parenthesis When using SYLK bus sensors SYLK will appear on the screen and when using 20k OA temperatur...

Страница 30: ...peration EQUIPMENT CONV AUX2 IN W FAN SPEED 2SPEED Table 14 Damper Minimum Position Settings and Readings on Checkout Menu MENU PARAMETER PARAMETER DEFAULT VALUE PARAMETER RANGE AND INCREMENT NOTES ALARMS CONT SHUTDOWN ACTIVE N A N A AUX2 IN is programmed for SHUTDOWN and 24 V has been applied to AUX2 IN terminal DMP CAL RUNNING N A N A DAMPER CALIBRATION ROUTINE RUNNING If DCV Auto enable has bee...

Страница 31: ... On 0v Off MIN POS to Full Open Closed to Full Open DEMAND CONTROLLED VENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 Set No OFF OFF HIGH 0v Off 0v Off VENTMIN Closed ON OFF HIGH 24v On 0v Off VENTMIN Closed ON ON HIGH 24v On 24v On VENTMIN Closed Yes OFF OFF HIGH 0v Off 0v Off VENTMIN Closed ON OFF HIGH 0v Off 0v Off VENTMIN to Full Open C...

Страница 32: ...f 0v Off VENTMIN Closed ON OFF HIGH 0v Off 0v Off VENTMIN to Full Open Closed to Full Open ON ON HIGH 24v On 0v Off VENTMIN to Full Open Closed to Full Open Above CO2 Set No OFF OFF HIGH 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF HIGH 24v On 0v Off VENTMIN to VENTMAX Closed ON ON HIGH 24v On 24v On VENTMIN to VENTMAX Closed Yes OFF OFF HIGH 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF HIGH 0...

Страница 33: ... 0v Off VENTMIN Closed ON OFF LOW 0v Off 0v Off VENTMIN to Full Open Closed to Full Open ON ON HIGH 24v On 0v Off VENTMIN to Full Open Closed to Full Open Above CO2 Set No OFF OFF LOW 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF LOW 24v On 0v Off VENTMIN to VENTMAX Closed ON ON HIGH 24v On 24v On VENTMIN to VENTMAX Closed Yes OFF OFF LOW 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF LOW 0v Off ...

Страница 34: ...IGH 24v On 0v Off VENTMIN to Full Open Closed to Full Open Above CO2 Set No OFF OFF LOW 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF LOW 24v On 0v Off VENTMIN to VENTMAX Closed ON ON HIGH 24v On 24v On VENTMIN to VENTMAX Closed Yes OFF OFF LOW 0v Off 0v Off VENTMIN to VENTMAX Closed ON OFF LOW 0v Off 0v Off VENTMIN to Full Open Closed to Full Open ON ON HIGH 24v On 0v Off VENTMIN to Full Open Cl...

Страница 35: ...d parame ter and perform the Checkout tests NOTE See Interface Overview on page 24 for information about menu navigation and use of the keypad Power Up After the W7220 module is mounted and wired apply power Initial Menu Display On initial start up Honeywell dis plays on the first line and Economizer W7220 on the second line After a brief pause the revision of the software appears on the first lin...

Страница 36: ... LonWorks see Fig 43 and 44 Refer to Table 25 RTU Open Controller Inputs and Outputs for locations of all connections to the RTU Open board The RTU Open controller requires the use of a Bryant space sensor A standard thermostat cannot be used with the RTU Open system Fig 42 RTU Open Multi Protocol Control Board CAUTION Failure to follow this caution may result in damage to equipment Be sure to all...

Страница 37: ...37 Fig 43 Typical RTU Open System Control Wiring Diagram ...

Страница 38: ...38 Fig 44 Typical RTU Open System Control Wiring Diagram with Perfect Humidity ...

Страница 39: ...I 24 VAC J5 7 8 Binary Input 9 Zone Temperature n a n a J13 1 4 Rnet CONFIGURABLE INPUTS4 Indoor Air CO2 iaq AI 4 20 mA J4 2 3 or J4 5 6 Analog Input 2 Outdoor Air CO2 oaq AI 4 20 mA Analog Input 1 Space Relative Humidity space_rh AI 4 20 mA Analog Input 10 Supply Fan Status2 sfan_status BI 24 VAC J5 1 2 or J5 3 4 J5 5 6 or J5 7 83 Binary Input 3 5 8 or 9 except where intrinsic input is used Filte...

Страница 40: ...in the corner post then feed the wires thorough the raceway to the RTU Open Connect to the wires to the removable Phoenix connectors and then recon nect the connectors to the board Space Temperature SPT Sensors There are two types of SPT sensors available from Bryant resistive input non com municating T55 T56 and T59 and Rnet communicating SPS SPPL SPP and SPPF sensors Each type has a variety of o...

Страница 41: ...ath contact Do not mount the IAQ sensor in drafty areas such as near supply ducts open windows fans or over heat sources Allow at least 3 ft 0 9 m between the sensor and any corner Avoid mounting the sensor where it is influenced by the supply air the sensor gives inaccurate readings if the supply air is blown directly onto the sensor or if the supply air does not have a chance to mix with the roo...

Страница 42: ...ty is a factory installed option which is available for 07 models only Relative Humidity Sensors Space or Duct Mounted The accessory space humidity sensor 33ZCSENSRH 01 or duct humidity sensor 33ZCSENDRH 01 is used to measure the relative humidity of air within the space or return air duct The RH reading is used to control the Perfect Humidity option of the rooftop unit For wiring distances up to ...

Страница 43: ...stalla tion Refer to Fig 42 and Table 25 for wire terminations at J5 Power Exhaust output The relay used by the RTU Open board to control power exhaust is a dry contact which means it does not have 24vac This 24vac must be connected to the relay to allow it to operate the power exhaust relay in the PE acces sory A 24vac source must be provided to J11 2 on the RTU Open control board This can be pro...

Страница 44: ...Tech Tool Kit USB TKIT This is a field Tech Tool to set up service or download appli cation software to the RTU Open controller and includes a USB link cable The link cable connects a USB port to the J12 local access port See Fig 60 RTU Open Troubleshooting Troubleshooting is accom plished by viewing the communication LEDs The LEDs indi cate if the controller is speaking to the devices on the netw...

Страница 45: ...or Return Air without or with economizer or in combination of Supply Air and Return Air All components necessary for operation are factory pro vided and mounted The unit is factory configured for immedi ate smoke detector shutdown operation additional wiring or modifications to unit terminal board may be necessary to com plete the unit and smoke detector configuration to meet project requirements ...

Страница 46: ...g down See Fig 64 Step 2 3 Screw the sensor and detector plate into its operating po sition using screws from Step 1 See Fig 64 Step 3 4 Connect the flexible tube on the sampling inlet to the sampling tube on the basepan Additional Application Data Refer to Catalog No HKRN KA 1XA for discussions on additional control features of these smoke detectors including multiple unit coordination Fig 64 Com...

Страница 47: ...noMi er IV with control EconoMi er 2 without control for external signal Power Exhaust Differential dry bulb sensor EconoMi er IV Outdoor enthalpy sensor Differential enthalpy sensor CO2 sensor Louvered hail guard Phase monitor control Refer to separate installation instructions for information on installing these accessories Step 15 Check Belt Tension Measure the belt span length as shown in Fig ...

Страница 48: ...Motor Mounting Pre Start and Start Up This completes the mechani cal installation of the unit Refer to the unit s Service Manual for detailed Pre Start and Start Up instructions Download the latest versions from HVAC Partners www hvacpartners com Table 1 Table 2 BELT CROSS SECTION SMALLEST SHEAVE DIAMETER BELT DEFLECTION FORCE LBS UNNOTCHED BELTS NOTCHED BELTS USED NEW USED NEW A AX 3 0 3 6 3 7 5 ...

Страница 49: ......

Страница 50: ...e right to change at any time specifications and designs without notice and without obligations Replaces II580J 4 7 02 Copyright 2017 Bryant Heating Cooling Systems Edition Date 12 17 Printed in U S A Catalog No II580J 4 7 04 ...

Страница 51: ...ters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y N _____ Verify that unit is level Y N _____ Check fan wheels and propeller for location in housing orifice and verify setscrew is tight Y N _____ Verify that fan sheaves are aligned and belts are properly tensioned Y N _____ Verify that scroll compressors are rotating in the correct direction Y N _____ Verify...

Страница 52: ... B Discharge pressure _______________ PSIG C Entering air temperature _______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as condenser coil warms Y N _____ 4 Check unit charge per charging chart Y N _____ 5 Switch unit to high latent mode sub cooler by closing hum...

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