WaterFurnace Versatec 700 Installation Manual
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WaterFurnace Versatec 700 Installation Manual

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Formerly the Versatec DOAS
Commercial
Water Source/Geothermal DOAS
• R-410A Refrigerant
• 10-30 Tons
Installation Information
nformation
Water Piping Connections
g Connections
Electrical
Startup Procedures
edures
Troubleshooting
ting
Preventive Maintenance
aintenance
Indoor DOAS
READ AND SAVE THESE INSTRUCTIONS
LIRE AND CONSERVER CES INSTRUCTION
IM2701EW 01/22

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Summary of Contents for WaterFurnace Versatec 700

  • Page 1 Indoor DOAS Formerly the Versatec DOAS Commercial Water Source/Geothermal DOAS • R-410A Refrigerant • 10-30 Tons Installation Information nformation Water Piping Connections g Connections Electrical Startup Procedures edures Troubleshooting ting Preventive Maintenance aintenance READ AND SAVE THESE INSTRUCTIONS LIRE AND CONSERVER CES INSTRUCTION IM2701EW 01/22...

  • Page 3: Table Of Contents

    Table of Contents Model Nomenclature ............... 4 DAS System .
  • Page 4 Sect ctio ion n I: I: D D OA S Sy Syst stem Section I: DOAS System Section I: DOAS System...
  • Page 5 Sect ctio stem DAS System CAUTION CAUTION CAUTION WARNING: Before performing service or WARNING: Avant d’effectuer l’entretien ou maintenance operations on a system, turn opérations de maintenance sur un système, off main power switches to the indoor unit. If tournez éteignez les interrupteurs d’alimentation applicable, turn off the accessory heater power principaux de l’unité...

  • Page 6: Model Nomenclature

    Sect ctio ion n I: I: D D OA S Sy Syst stem Model Nomenclature FAV Secondary Model 1 – With 1 Secondary FAV DAS – Versatec DOAS 2 – With 2 Secondary FAV Heat Pump Capacity ERW Cabinet Option 120, 180, 240, 360 S –...

  • Page 7: Model Nomenclature

    Sect ctio stem Model Nomenclature 22-23 Vintage Model Type * – Factory Use Only FA – Versatec Fresh Air Variable Speed Non-Standard Options SS – Standard Cabinet Configuration V – Vertical Economizer Option N – None Unit Capacity (MBTUH) 120, 180 Air Coil Coating Option 3 –...
  • Page 8 Sect ctio ion n I: I: D D OA S Sy Syst stem Model Nomenclature 12-13 14 15-16 19 20-21 ER W 5210 Model Vintage ER – Versatec Energy * - Factory Use Only Recovery Unit Non-Standard Option Media SS – Standard Option W-Wheel Mating Option Media Configuration...

  • Page 9: Electrical Data

    Sect ctio stem Electrical Data Versatec DOAS Electrical Data Compressor Supply Exhaust Wheel Total DOAS Exhaust Rated Voltage Fuse/ Blower Blower Motor Unit Circ Model Blowers Voltage Min/Max HACR MCC** LRA* Breaker 208-230/60/3 187/253 56.0 33.1 60.0 52.3 60.6 DAS120S1 460/60/3 414/506 30.0...

  • Page 10: Dimensional Data

    Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data DAS180S1 TOP FLOW STANDARD DIMENSIONS IN INCHES [mm] OPTIONAL INLET/OUTLET FIELD CONFIGURATION TOP VIEW OUTDOOR AIR INLET LARGE DOOR ON RETURN ORDERED (RIGHT RETURN SHOWN) 59.57 1513.0 109.57...
  • Page 11 Sect ctio stem Dimensional Data cont. DAS180S1 BOTTOM FLOW OPTIONAL INLET/OUTLET FIELD CONFIGURATION STANDARD DIMENSIONS IN INCHES [mm] 59.57 109.55 1513.0 2782.5 EXHAUST EXHAUST AIR OUTLET AIR OUTLET RETURN 77.66 1972.6 OUTDOOR FRONT VIEW OUTDOOR SIDE VIEW AIR INLET AIR INLET OUTDOOR AIR INLET BOTTOM VIEW...
  • Page 12 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. DAS120S1 TOP FLOW STANDARD DIMENSIONS IN INCHES [mm] OPTIONAL INLET/OUTLET FIELD CONFIGURATION LARGE DOOR ON RETURN ORDERED (RIGHT RETURN SHOWN) OUTDOOR AIR INLET TOP VIEW 109.54 2782.4 59.57...
  • Page 13 Sect ctio stem Dimensional Data cont. DAS120S1 BOTTOM FLOW OPTIONAL INLET/OUTLET STANDARD DIMENSIONS IN INCHES [mm] FIELD CONFIGURATION 109.54 2782.4 59.57 1513.1 EXHAUST EXHAUST RETURN AIR OUTLET AIR OUTLET 77.66 1972.6 OUTDOOR OUTDOOR SIDE VIEW FRONT VIEW AIR INLET AIR INLET OUTDOOR AIR INLET LARGE DOOR ON...
  • Page 14 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. DAS360L2 TOP FLOW STANDARD DIMENSIONS IN INCHES [mm] 94.06 2389.1 OPTIONAL INLET/OUTLET 1.50 FIELD CONFIGURATION 38.1 109.56 2782.7 OUTDOOR TOP VIEW AIR INLET 92.60 2352.0 OUTDOOR OUTDOOR...
  • Page 15 Sect ctio stem Dimensional Data cont. DAS360L2 BOTTOM FLOW STANDARD DIMENSIONS IN INCHES [mm] 92.60 2352.0 OPTIONAL INLET/OUTLET FIELD CONFIGURATION EXHAUST EXHAUST AIR OUTLET RETURN AIR OUTLET 77.66 1972.6 OUTDOOR OUTDOOR AIR INLET SIDE VIEW FRONT VIEW AIR INLET OUTDOOR AIR INLET 109.56 2782.8...
  • Page 16 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. DAS240L2 TOP FLOW STANDARD DIMENSIONS IN INCHES [mm] OPTIONAL INLET/OUTLET FIELD CONFIGURATION 74.21 1885.0 1.50 38.1 109.54 2782.4 TOP VIEW 92.59 2351.7 109.54 2782.4 OUTDOOR AIR INLET OUTDOOR...
  • Page 17 Sect ctio stem Dimensional Data cont. DAS240L2 BOTTOM FLOW STANDARD DIMENSIONS IN INCHES [mm] OPTIONAL INLET/OUTLET FIELD CONFIGURATION 109.54 2782.4 EXHAUST EXHAUST AIR OUTLET AIR OUTLET 77.66 1972.6 OUTDOOR OUTDOOR BACK VIEW AIR INLET AIR INLET SIDE VIEW 92.59 2351.7 OUTDOOR AIR INLET 1.50...
  • Page 18 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. TOP FLOW (RA) IN THIS LOCATION ON BOTTOM SIDE BACK FRONT FRONT SIDE SIDE BACK LARGE DOOR ON FRONT ON RETURN ORDERED (RIGHT RETURN SHOWN) ACCESS PANELS (2) w/ CUTOUTS ARE FIELD CHANGEABLE TO OA/EA ALTERNATE LOCATIONS...
  • Page 19 Sect ctio stem Dimensional Data cont. ERW52 (TOP FLOW SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 30.00 14.75 6.59 762.0 374.7 167.4 20.00 508.0 8.00 203.2 3.19 30.00 14.75 81.1 762.0 374.7 LARGE DOOR ON FRONT OF RETURN ORDERED TOP VIEW (RIGHT RETURN SHOWN) OUTDOOR/EXHAUST 56"...
  • Page 20 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. ERW68 (TOP FLOW SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 31.29 30.00 6.58 794.9 762.0 167.2 20.00 508.0 66.30 1684.0 8.00 203.2 3.19 81.1 LARGE DOOR ON FRONT TOP VIEW OF RETURN ORDERED (LEFT RETURN SHOWN)
  • Page 21 Sect ctio stem Dimensional Data cont. FAV120 TOP FLOW (RIGHT RETURN SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 4.17 105.9 16.00 406.4 28.00 711.2 FRONT 1.01 25.7 43.25 1098.6 2' SERVICE ACCESS 2' SERVICE ACCESS 34.00 9.25 36.30 863.6 235.0 922.0 OPTIONAL SIDE DISCHARGE FIELD REMOVABLE PANEL ACCESS...
  • Page 22 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. FAV120 BOTTOM FLOW (RIGHT RETURN SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 34.00 9.25 36.30 863.6 235.0 HIGH VOLTAGE 922.0 1.85 47.0 4.05 102.8 9.36 237.7 17.60 20.10...
  • Page 23 Sect ctio stem Dimensional Data cont. FAV180 TOP FLOW (RIGHT RETURN SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 4.20 106.7 38.00 965.2 FRONT 1.01 15.98 25.7 405.9 43.25 2' SERVICE ACCESS 1098.6 2' SERVICE ACCESS 46.30 34.00 9.25 1176.0 235.0 863.6 OPTIONAL SIDE DISCHARGE FIELD REMOVABLE PANEL ACCESS...
  • Page 24 Sect ctio ion n I: I: D D OA S Sy Syst stem Dimensional Data cont. FAV180 BOTTOM FLOW (RIGHT RETURN SHOWN) STANDARD DIMENSIONS IN INCHES [mm] 46.30 1176.0 4.00 34.00 9.25 101.6 863.6 235.0 1.85 47.0 9.36 4.05 237.7 102.9 17.60 20.10...
  • Page 25 Sect ctio stem Wiring Schematics (next page) Section I: DOAS System...

  • Page 26: Wiring Schematics

    Sect ctio ion n I: I: D D OA S Sy Syst stem Wiring Schematics RS485 NET Green / Yel low (G1) Compressor Compressor Variable Frequency (VFD) M ODUL ATI NG WATER VALVE 0V Common FLOW METER Discharge Line PRESSURE Temperature TRANSDUCER Gray...
  • Page 27 Sect ctio stem Wiring Schematics cont. 97P936-01 8/23/21 Unit Power Supply EC-0004724 HACR Circ ui t Bre a ke r, or Te rmina l Block Notes: Notes: Notes: 1– Factor y installed modulating water valve. 1– Factor y installed modulating water valve. 2–...
  • Page 28 Sect ctio ion n I: I: D D OA S Sy Syst stem Wiring Schematics ERW52XX/68XX 208V-230V/60/3PH ERW52XX/68XX 208V-230V/60/3PH LWHT EWHT Brown Yellow (312) 208V-Red 208V-Red Black Blue 230V-Blue 230V-Blue Black Blue (313) F FG CC CCG F FG CC CCG F FG CC CCG REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPS REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPS...
  • Page 29 Sect ctio stem Wiring Schematics cont. 97P9601-01 REV B 6/16/21 Unit Power Supply Main Power Disconnect LED1 LED1 FP1 – 15 FP1 – 15 F/30 F/30 LED2 LED2 ECM PWM ECM PWM FP2 – 15 FP2 – 15 F/30 F/30 RV –...
  • Page 30 Sect ctio ion n I: I: D D OA S Sy Syst stem Wiring Schematics ERW52XX/68XX 460V/60/3PH ERW52XX/68XX 460V/60/3PH LWHT EWHT Brown Yellow (312) Blue Black Black Blue (313) F FG CC CCG F FG CC CCG F FG CC CCG REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPS REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPS REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPS...
  • Page 31 Sect ctio stem Wiring Schematics cont. 97P9601-02 REV B 06/16/21 Unit Power Supply Main Power Disconnect LED1 LED1 LED2 LED2 FP1 – 15 FP1 – 15 F/30 F/30 ECM PWM ECM PWM FP2 – 15 FP2 – 15 F/30 F/30 RV –...

  • Page 32: Section Ii: Fav

    Sect ctio Section II: FAV Typical Unit Installation Water Piping Unit Location Piping is usually design as ‘reverse return’ to equalize flow Locate the unit in an indoor area that allows for easy re- paths through each unit. A short flexible pressure rated moval of the filter and access panels.

  • Page 33: Installation Notes

    The FAV is third party sound rated in accordance with ARI some other material to isolate the grille from the unit. A 260. Please consult WaterFurnace Sound Performance Data supply grille, boot and short piece of flex duct pointed Catalog for details on the AHRI standard and sound perfor- away from the unit can greatly attenuate equipment mance data.

  • Page 34: Duct System

    Sect ctio Duct System An air outlet collar is provided on vertical top flow units and Applying Gasketing all bottom flow units to facilitate a duct connection. Gasketing must be applied between the FAV and ERW A flexible connector is recommended for discharge and modules to insure an airtight seal.

  • Page 35: Condensate Drain

    Sect Condensate Drain FAV Top Flow FAV Top Flow Units – Internally Trapped FAV top flow heat pumps are shipped with a factory installed condensate tube and 3/4” PVC glue connection stubbing out from the control box side of the unit. Each condensate drain shall be looped enough for 2”...
  • Page 36 Sect ctio Water Quality In ground water situations where scaling could be heavy with extremely hard water, the owner should be informed or where biological growth such as iron bacteria will be that the heat exchanger may require occasional flushing. present, a closed loop system is recommended.
  • Page 37 Sect Water Quality It is the responsibility of the system designer and installing Low Water Coil Limit contractor to ensure that acceptable water quality is Set the freeze sensing switch SW2-1 on the Aurora Base present and that all applicable codes have been met in Control (ABC) printed circuit board for applications using a these installations.

  • Page 38: System Cleaning And Flushing

    Sect ctio System Cleaning and Flushing Refill the system with clean water. Test the system water Cleaning and Flushing for acidity and treat as required to leave the water slightly Prior to startup of any heat pump, the water circulating alkaline (pH 7.5 to 8.5).

  • Page 39: Open Loop Ground Water Systems

    Sect Open Loop Ground Water Systems Typical open loop piping is shown below. Always maintain Discharge water from the unit is not contaminated in any water pressure in the heat exchanger by placing water manner and can be disposed of in various ways, depending control valves at the outlet of the unit to prevent mineral on local codes, i.e.

  • Page 40: Electrical Connections

    Sect ctio Electrical Connections General Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable. Control Box Aurora Advanced Control Board (AXB)
  • Page 41 Section III: Section III: ERW ERW Moving and Storage The FAV and ERW will ship separately. The ERW will come assembled on a single pallet with four side forklift accessibility. To allow movement through a standard 36” door the unit halves must be separated and removed from the pallet. Although modular ERW’s are shipped factory assembled as standard, the unit must be separated to apply gasketing between the modules.
  • Page 42 Section III: ERW ERW Installation Notes cont. Do not stack units. When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates and cartons have been received. Examine units for shipping damage, removing the units from the packaging if necessary.
  • Page 43 Section III: ERW Installation Notes cont. Connect the Modules Once the ERW has been separated and gasketing has been applied to both the ERW and FAV modules the ERW wheel cabinet should be attached to the FAV cabinet(s) using the supplied bracketing or equivalent. The connection should be sealed using foil tape or duct seal.

  • Page 44: Duct Connection Information Cont

    Section III: ERW ERW Duct Connection Information cont. WARNING WARNING WARNING: NE PAS UTILISER DE SCIE OU LAME WARNING: DO NOT USE A RECPRICATING À FAIBLE TPI POUR ENLEVER LES DÉCOUPES SAW OR LOW TPI BLADE TO REMOVE PANEL DE PANNEAU. CES MÉTHODES PEUVENT CUT OUTS.

  • Page 45: Energy Recovery

    Section III: Energy Recovery To adjust air seal clearance, loosen all seal plate retaining Energy Recovery Wheels screws holding the separate seal retaining plates to the ERU units have been equipped with an energy recovery bearing support channels and slide the seals plates away wheel.
  • Page 46 Section III: ERW ERW Electrical Connections General Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable.

  • Page 47: Belimo Sensor Dip Switch Settings

    Section III: Belimo Sensor Dip Switch Settings Modbus Baud Parity Term. Belimo DIP1 - Address Belimo DIP2 - Function & Resis- Device Location Device Type Adrs Rate Stop Outdoor Air Sensor Belimo 22DTH-55M 19200 E-1 ON ON OFF ON OFF OFF ON OFF ON OFF Return Air Sensor Belimo 22DTM-15 19200 E-1...

  • Page 48: Unit Start-Up

    Section IV: Start-up, Troubleshooting, System Data Section IV: Start-up, Troubleshooting, System Data Unit Start-up Before Powering Unit, Check The Following: • Power supply matches nameplate specifications. • Power supply fuses, breakers and wires are sized correctly. Switch the Transformer to 208V if applicable. •...

  • Page 49: Operating Limits

    Section IV: Start-up, Troubleshooting, System Data Unit Start-up cont. Adjust the cooling set point above the room Startup Steps temperature and verify that the compressor and water NOTE: Complete the Equipment Start-Up/Commissioning valve or loop pumps deactivate. Check Sheet during this procedure. 10.

  • Page 50: Operating Parameters

    Section IV: Start-up, Troubleshooting, System Data Operating Parameters Unit Operating Parameters Cooling -- No Hot Water Generation Heating -- No Hot Water Generation Entering Water Water Water Suction Discharge Suction Discharge Air Temp Load Temp Temp Temp Temp Pressure Pressure Superheat Subcooling Pressure Pressure...

  • Page 51: Reference Calculations

    Section IV: Start-up, Troubleshooting, System Data Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT - LWT = EWT + gpm x 500 gpm x 500 LAT = EAT + LAT(DB) = EAT(DB) - cfm x 1.08 cfm x 1.08 LC = TC - SC TH = HC + HWC S/T =...
  • Page 52 Section IV: Start-up, Troubleshooting, System Data Refrigerant Circuit Guideline Head Suction Compressor Air Temp. Water Temp. Symptom Superheat Subcooling Pressure Pressure Amp Draw Differential Differential Under Charged System (Possible Leak) High Over Charged System High High High Normal High Normal/Low Normal Low Air Flow Heating High...

  • Page 53: Compressor Resistance

    Section IV: Start-up, Troubleshooting, System Data Compressor Resistance Model 208-230/60/3 460/60/3 0.681 0.681 0.203 0.203 9/23/16 Thermistor Resistance Thermistor Resistance Thermistor Resistance (1k Ohm) Thermistor Resistance (10k Ohm) for Thermistor Resistance (86k Ohm) for suction line, LAT, and FP1, FP2, HWL, LWT, LLT, and EWT for compressor discharge line compressor ambient Temperature...

  • Page 54: Troubleshooting

    Section IV: Start-up, Troubleshooting, System Data Troubleshooting Should a major problem develop, refer to the following information for possible causes and corrective steps. If compressor won’t run: The fuse may be open or the circuit breaker is tripped. Check electrical circuits and motor windings for shorts or grounds.

  • Page 55: Startup And Troubleshooting Form

    Section IV: Start-up, Troubleshooting, System Data Startup and Troubleshooting Form Company Name: _________________________________ Company Phone No: ______________________________ Technician Name: ________________________________ Date: __________________________________________ Model No: ______________________________________ Serial No:_______________________________________ Owner’s Name: __________________________________ Open or Closed Loop: _____________________________ Installation Address: ______________________________ Installation Date: _________________________________ Check One ❑...
  • Page 56 Section IV: Start-up, Troubleshooting, System Data DEALER: PHONE #: DATE: PROBLEM: MODEL #: Startup/Troubleshooting Form SERIAL #: COOLING CYCLE ANALYSIS SAT °F °F Unit Amp Draw: Loop: Open Closed Line Voltage: °F °F COIL SUCTION COMPRESSOR REVERSING COAX COAX EXPANSION VALVE LOAD SOURCE...

  • Page 57: Preventative Maintenance

    Section IV: Start-up, Troubleshooting, System Data Preventive Maintenance Water Coil Maintenance 1. Keep all air out of the water. An open loop system should be checked to ensure that the well head is not allowing air to infiltrate the water line. Lines should always be airtight. 2.
  • Page 58 Section IV: Start-up, Troubleshooting, System Data Energy Recovery Wheel Start-up CAUTION CAUTION CAUTION: ROUE EN ROTATION ! LE CONTACT CAUTION: KEEP HANDS AWAY FROM ROTATING AVEC LA ROUE EN ROTATION PEUT CAUSER DES WHEEL! CONTACT WITH ROTATING WHEEL CAN BLESSURES CAUSE PHYSICAL INJURY.
  • Page 59 Section IV: Start-up, Troubleshooting, System Data Energy Recovery Wheel Maintenance and Cleaning Routine Maintenance and Handling Soak in the solution until grease and tar deposits are Handle cassettes with care. All cassettes should be lifted by loosened (Note: some staining of the desiccant may remain the bearing support beam.

  • Page 60: Energy Recovery Wheel Service

    Section IV: Start-up, Troubleshooting, System Data Energy Recovery Wheel Service Wheel Drive Motor and Pulley Replacement CAUTION Disconnect power to wheel drive motor. Remove belt from pulley and position temporarily around wheel rim. Disconnect electrical power before servicing Loosen set screw in wheel drive pulley using a hex head energy recovery cassette.

  • Page 61: Revision Guide

    Section II: FAV Revision Guide Pages: Description: Date: Document Creation 28 April 2021 Section I: FAV Unit Installation Section I: FAV Unit Installation 61 61 61 61...
  • Page 62 10-15 Tons Document: Installation Manual IM2701EW 01/22 ©2022 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifi cations without notice.

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