Related Manuals for WaterFurnace NSKW06
Summary of Contents for WaterFurnace NSKW06
- Page 1 NSKW Geothermal Hydronic Heat Pump Installation Information Water Piping Connections Electrical Data Startup Procedures Preventive Maintenance IM2566WN 07/16...
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Page 3: Table Of Contents
VERSATEC ULTRA NSKW INSTALLATION MANUAL Table of Contents Model Nomenclature ............. . 4 General Installation Information . -
Page 4: Model Nomenclature
NOTES: 1 – Available on 08, 12, 17 only. Hot water generator requires field installed external pump kit. 2 – NSKW06 heating only models are available only with copper double wall vented load coax for potable water, and are not designed to be converted to dedicated cooling units. -
Page 5: General Installation Information
VERSATEC ULTRA NSKW INSTALLATION MANUAL General Installation Information WARNING: To avoid equipment damage, do not Safety Considerations leave the system filled in a building without heat Installing and servicing air conditioning and heating during cold weather, unless adequate freeze equipment can be hazardous due to system pressure and protection levels of antifreeze are used. -
Page 6: Water Quality
VERSATEC ULTRA NSKW INSTALLATION MANUAL Water Quality The heat exchangers and water lines in the units are copper General or cupronickel tube. There may be other materials in the Water-to-water heat pumps may be successfully applied building’s piping system that the designer may need to take in a wide range of residential and light commercial into consideration when deciding the parameters of the applications. -
Page 7: Field Connected Water Piping
Normally about 0.054 L/s flow rate per kw of cooling capacity (0.040 L/s per kw NOTES: 1) WaterFurnace recommends a male national pipe minimum) is needed. Both source as well as load fluid piping thread (NPT) to British standard pipe fitting (BSPF) to must be at least as large as the unit connections on the heat adapt to NSKW water connections. -
Page 8: Open Loop Well Water Systems
VERSATEC ULTRA NSKW INSTALLATION MANUAL Field Connected Water Piping cont. Figure 9a: Open Loop Solenoid Valve Connection Option Open Loop Well Water Systems Typical quick operating external 24V water solenoid valve Always maintain water pressure in the heat exchanger by (type PPV100 or BPV100) wiring. -
Page 9: Field Connected Water Piping
Mesh or Air Pad Connections Ground Loop Design and Installation This instruction manual does not cover the design and installation of the ground loop system. WaterFurnace recommends that all ground loops are designed using GeoLink Design Studio (GDS) or another commercial software package. -
Page 10: Potable Water Systems
WaterFurnace recommends the use of a properly sized buffer tank equipped with supplemental electric immersion heaters in conjunction with all NSKW models used in an HWG application. - Page 11 FLOW CENTER 1-1/2˝ Dielectric Unions P/T Ports P/T Ports Ball Valve Ball Valve WaterFurnace 5 Series Versatec Ultra GEOTANK NSW018 or NSW025 (Heating Only) 06 (Heating Only) with Double Wall Load Coax NOTES: 1) Unions and valves must be installed so that acid flushing of the heat exchanger is possible.
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Page 12: Hydronic Section
Even galvanic corrosion. if local code does not require this device, WaterFurnace recommends its installation. If the pressure relief valve in When using the various types of hydronic heat distribution... -
Page 13: Hydronic Section
VERSATEC ULTRA NSKW INSTALLATION MANUAL Hydronic Section cont. If using a Geothermal Storage tank there will be two red Adequate rate of flow (L/s) is very important to system wires exiting out of the top of the tank. These red wries performance and long term reliability. -
Page 14: Accessories And Options
VERSATEC ULTRA NSKW INSTALLATION MANUAL Accessories and Options Geo Storage Tank Dimensions From Geo To Geo 150 cm Dip Tube PRIMARY ANODE 99 cm - 80 Gallon 106.7 cm - 119 Gallon 20.3 cm HOT OUTLET COLD INLET w/35.6 cm SECONDARY ANODE 132.0 cm DIP TUBE Approx. - Page 15 VERSATEC ULTRA NSKW INSTALLATION MANUAL Electrical Data cont. Control Box Run Capacitor Circuit Breakers Load Pump Relay Optional IntelliStart Transformer Load Pump Power Block Ground Lug Source Pump Power Block Compressor Contactor Aurora Base Control Board (ABC) Accessory Relay Control Box Relocation A set of “dry”...
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Page 16: Wiring Schematics
VERSATEC ULTRA NSKW INSTALLATION MANUAL Wiring Schematics Aurora Water-Water – 220-240/50/1 Compressor Blue Black Black/White (3) Capacitor LED1 LED2 FP1 – 15 F/30 ECM PWM FP2 – 15 F/30 Tan(10) RV – B/O Fault Config ACC – Dip 4 ACC – Dip 5 LED3 CC –... - Page 17 VERSATEC ULTRA NSKW INSTALLATION MANUAL Wiring Schematics cont. Aurora Water-Water – 220-240/50/1 Notes Blue 1 – HydroZone controller is an optional field installed accessory. Compressor 2 – Reversing Valve wires not installed on heating only option Black 3 – FP2 is replaced with a resistor on heating only option 4 –...
- Page 18 VERSATEC ULTRA NSKW INSTALLATION MANUAL Wiring Schematics - Commercial Aurora Water-Water - 380-420/50/3 LED1 LED2 Compressor FP1 – 15 F/30 ECM PWM FP2 – 15 F/30 RV – B/O Fault Config ACC – Dip 4 ACC – Dip 5 LED3 CC –...
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Page 19: Wiring Schematics
VERSATEC ULTRA NSKW INSTALLATION MANUAL Wiring Schematics - Commercial cont. Aurora Water-Water - 380-420/50/3 Notes 1 – HydroZone controller is an optional field installed accessory. Black 2 – Reversing Valve wires not installed on heating only option 3 – FP2 is replaced with a resistor on heating only option Yellow L2 (IN) 4 –... -
Page 20: External Control
VERSATEC ULTRA NSKW INSTALLATION MANUAL External Control An external controller is necessary for operation. For water storage tank set point control the HydroStat HZC, and HZ0 may be used. A field supplied aquastat may also be used as the external control to the heat pump. If zoning is required, the Hydrologic Zone Panels and Control system can provide up to eight zones of closed loop hydronic heating and cooling. -
Page 21: Converting To A Dedicated Cooling Unit
VERSATEC ULTRA NSKW INSTALLATION MANUAL Converting to a Dedicated Cooling Unit Procedure to Convert a Heating Only Unit to a Cooling Only Unit All non-reversible units are built at the factory as dedicated heating units. Follow the procedures below to make the unit a dedicated cooling unit. -
Page 22: The Aurora Base Control System
VERSATEC ULTRA NSKW INSTALLATION MANUAL The Aurora Base Control System Aurora ‘Base’ Control The Aurora ‘Base’ Control (ABC) System is a complete residential and commercial comfort system that brings all aspects of the HVAC system into one cohesive module network. The ABC features microprocessor control and HP, LP, condensate and freeze detection, over/ under voltage faults, along with communicating thermostat capability for complete fault detection text at the thermostat. -
Page 23: Control Features
VERSATEC ULTRA NSKW INSTALLATION MANUAL The Aurora Base Control System cont. Aurora ‘Base’ Control DIP Switch (SW2) SW2-1 (Source) FP1 Selection – Low water coil temperature limit setting for freeze detection. On = 30°F(-1.1˚C); Off = 15°F(-9.4˚C). SW2-2 (Load) FP2 Selection – On = 30°F(-1.1˚C); Off = 15°F(-9.4˚C) SW2-3 RV –... - Page 24 VERSATEC ULTRA NSKW INSTALLATION MANUAL The Aurora Base Control System cont. Fault Retry – in the fault condition, the control will stage off Over/Under Voltage Shutdown - An over/under voltage the outputs and then “try again” to satisfy the thermostat condition exists when the control voltage is outside the Y input call.
- Page 25 VERSATEC ULTRA NSKW INSTALLATION MANUAL The Aurora Base Control System cont. ABC Control Board Layout Aurora ‘Base’ Control LED Displays These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain LED1 LED2 FP1 –...
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Page 26: Reference Calculations
VERSATEC ULTRA NSKW INSTALLATION MANUAL Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT - LWT = EWT + L/s x 4.2* L/s x 4.2* NOTE: * When using water. Use 4.1 for 15% methanol/water or Environol solution. Legend and Notes ABBREVIATIONS AND DEFINITIONS: COP = coefficient of performance = liters per second... -
Page 27: Pressure Drop
VERSATEC ULTRA NSKW INSTALLATION MANUAL Pressure Drop Vented Only Load Side Pressure Drop (kPa) Model 0°C 15°C 25°C 35°C 50°C Pressure Drop (kPa) Model 15°C 25°C 35°C 50°C 0.25 0.25 0.35 13.8 13.1 12.4 11.7 10.3 0.35 20.3 19.6 18.9 18.3 0.45 22.1... -
Page 28: Physical Data
VERSATEC ULTRA NSKW INSTALLATION MANUAL Physical Data Model Compressor (1 each) Scroll Factory Charge R410A, oz [kg] 58 [1.64] 70 [1.98] 68 [1.93] 110 [3.12] Coax & Piping Water Volume - gal [l]* 0.89 [3.38] 1.0 [3.94] 1.4 [5.25] 1.6 [6.13] Weight - Operating, lb [kg] 225 [102.1] 290 [131.5]... -
Page 29: Operating Parameters
VERSATEC ULTRA NSKW INSTALLATION MANUAL Operating Parameters Heating Mode Entering Entering Suction Discharge Superheat Subcooling Load Temp (°C) Source Temp (°C) Pressure (kPa) Pressure (kPa) (°C) (°C) 358-462 1344-1565 462-565 1434-1620 655-779 1489-1689 855-993 1551-1758 4-11 986-1151 1586-1896 8-14 372-476 1951-2179 476-579 2020-2227... -
Page 30: Antifreeze Correction
VERSATEC ULTRA NSKW INSTALLATION MANUAL Antifreeze Correction Catalog performance can be corrected for antifreeze use. Please use the following table and note the example given. Heating Cooling Antifreeze % Pressure Antifreeze Type by wt Drop Load Source Load Source EWT - °C 26.7 -1.1 10.0... -
Page 31: Troubleshooting Guideline For Refrigerant Circuit
VERSATEC ULTRA NSKW INSTALLATION MANUAL Troubleshooting Guideline for Refrigerant Circuit The chart below will assist in determining if measurements taken at the unit are within factory specifications and aid in accurate diagnosis (SYMPTOM) and repair. The chart is general in nature and represents whether a symptom would result in normal, high, or low readings from the typical operating range. -
Page 32: Hr Data
VERSATEC ULTRA NSKW INSTALLATION MANUAL HR Data Heat of Rejection (kW) Table Load Flow-0.25 L/s Load Flow-0.35 L/s Load Flow-0.45 L/s Source Source EST °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 0.25 8.56 9.17... - Page 33 VERSATEC ULTRA NSKW INSTALLATION MANUAL HR Data cont. Heat of Rejection (kW) Table Load Flow-0.25 L/s Load Flow-0.35 L/s Load Flow-0.45 L/s Source Source EST °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 0.50 18.14 19.52...
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Page 34: He Data
VERSATEC ULTRA NSKW INSTALLATION MANUAL HE Data Heat of Extraction (kW) Table Load Flow-0.25 L/s Load Flow-0.35 L/s Load Flow-0.45 L/s Source Source EST °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 0.25 2.29 4.57... - Page 35 VERSATEC ULTRA NSKW INSTALLATION MANUAL HE Data cont. Heat of Extraction (kW) Table Load Flow-0.25 L/s Load Flow-0.35 L/s Load Flow-0.45 L/s Source Source EST °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 10°C 20°C 30°C 45 °C 0.50 11.02 9.70...
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Page 36: Dhw He Data
VERSATEC ULTRA NSKW INSTALLATION MANUAL DHW HE cont. 06 DHW Heat of Extraction (kW) Table Load Flow-0.25 L/s Load Flow-0.35 L/s Load Flow-0.45 L/s Source Source EST °C 15°C 25°C 40°C 50°C 15°C 25°C 40°C 50°C 15°C 25°C 40°C 50°C 0.25 5.25 4.60... -
Page 37: Heating And Cooling Cycle Analysis
VERSATEC ULTRA NSKW INSTALLATION MANUAL Heating Cycle Analysis ______kPa = ______SAT°C ______°C Suction Compressor Load Source Discharge Coax Coax ______kPa = ______SAT°C ______°C ______°C Liquid Line Entering Source Water °C Entering Water Pressure Leaving Source Water °C Leaving Water Pressure Unit Amp Draw Line Voltage Entering Load Water... -
Page 38: Troubleshooting Form
VERSATEC ULTRA NSKW INSTALLATION MANUAL 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 Start up/Check-out for new installation Troubleshooting... -
Page 39: Troubleshooting
VERSATEC ULTRA NSKW INSTALLATION MANUAL Troubleshooting Should a major problem develop, refer to the following Insufficient Cooling or Heating information for possible causes and corrective steps: Check for restriction in water flow. 2. Check subcooling for low refrigerant charge. Compressor Won’t Run 3. -
Page 40: Preventive Maintenance
VERSATEC ULTRA NSKW INSTALLATION MANUAL Preventive Maintenance Keep all air out of the water lines. An open loop system 4. Connect a plastic hose from the circulating pump inlet should be checked to ensure that the well head is not to the bottom of a plastic five (5) gallon pail (refer to allowing air to infiltrate the water line. -
Page 41: Service Parts
VERSATEC ULTRA NSKW INSTALLATION MANUAL Service Parts Aurora Controls Part Description Compressor 220-240/50/1 34P583-02 34P621-02 34P580-02 34P614-02 380-420/50/3 34P583-04 34P621-04 34P580-04 34P614-04 Compressor Capacitor 220-240/50/1 16P002D20 16P002D36 16P002D39 16P002D36 Compressor Sound Jacket 92P504A05 92P519-01 92P519-02 92P519-02 Thermal Expansion Valve 33P605-18 33P605-10 33P605-15 33P605-17... -
Page 42: Technical Documentation
VERSATEC ULTRA NSKW INSTALLATION MANUAL Technical Documentation Model NSKW06 Air-water Exhaust-water Type of heat pump Brine-water Water-water Low-temperature heat pump Yes No Integrated immersion heater for additional heat Heat pump combination heater Yes No Climate Average Cold Warm Temperature application Average (55°C) - Page 43 VERSATEC ULTRA NSKW INSTALLATION MANUAL Technical Documentation cont. Model NSKW08 Air-water Exhaust-water Type of heat pump Brine-water Water-water Low-temperature heat pump Yes No Integrated immersion heater for additional heat Heat pump combination heater Yes No Climate Average Cold Warm Temperature application Average (55°C) Low (35°C) Applied standards...
- Page 44 VERSATEC ULTRA NSKW INSTALLATION MANUAL Technical Documentation cont. Model NSKW12 Air-water Exhaust-water Type of heat pump Brine-water Water-water Low-temperature heat pump Yes No Integrated immersion heater for additional heat Heat pump combination heater Yes No Climate Average Cold Warm Temperature application Average (55°C) Low (35°C) Applied standards...
- Page 45 VERSATEC ULTRA NSKW INSTALLATION MANUAL Technical Documentation cont. Model NSKW17 Air-water Exhaust-water Type of heat pump Brine-water Water-water Low-temperature heat pump Yes No Integrated immersion heater for additional heat Heat pump combination heater Yes No Climate Average Cold Warm Temperature application Average (55°C) Low (35°C) Applied standards...
- Page 46 VERSATEC ULTRA NSKW INSTALLATION MANUAL Notes...
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Page 47: Revision Guide
VERSATEC ULTRA NSKW INSTALLATION MANUAL Revision Guide Pages: Description: Date: NSKW Commercial Guide Creation 28 June 2016... - Page 48 1.5-6 Tons Document: Installation Manual IM2566WN 7/16 ©2016 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.