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Envision R-410A Installation Manual

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CONSOLE
Geothermal/Water Source Heat Pumps
• R-410A Refrigerant
• 0.75-1.5 Ton Single Speed
Installation Information
Water Piping Connections
Electrical
Startup Procedures
Troubleshooting
Preventive Maintenance
IM1609 10/08

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Summary of Contents for Envision R-410A

  • Page 1 CONSOLE Geothermal/Water Source Heat Pumps • R-410A Refrigerant • 0.75-1.5 Ton Single Speed Installation Information Water Piping Connections Electrical Startup Procedures Troubleshooting Preventive Maintenance IM1609 10/08...

  • Page 3: Table Of Contents

    Envision Console Controls ........

  • Page 4: Model Nomenclature

    ENVISION CONSOLE INSTALLATION MANUAL CONSOLES Model Nomenclature 14 15-16 17 Family Vintage NC = Envision Console A = Current Non-Standard Option Details Cabinet Configuration SS = Standard Option C = Chassis Only W = Chassis with Cabinet S = Chassis with Slope Top...

  • Page 5: General Installation Information

    ENVISION CONSOLE INSTALLATION MANUAL General Installation Information Safety Considerations Refrigerant Systems To maintain sealed circuit integrity, do not install service WARNING: Before performing service or main- gauges unless unit opertion appears abnormal. Compare tenance operations on a system, turn off main the change in temperature on the air side as well as the wa- power switches to the indoor unit.

  • Page 6: Dimensional Data

    ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Flat Top Cabinet NCW09-18 Overall Cabinet Flat Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 45.0 10.8 25.7 35.0 44.1 10.3 09-12 114.3 27.3 65.2 23.4 88.9 15.6 5.8 112.0 26.0 10.9 50.0 12.3...
  • Page 7 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Slope Top Cabinet NCS09-18 Overall Cabinet Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 45.0 11.1 28.6 35.0 44.1 10.3 09-12 114.3 28.2 72.6 23.4 88.9 15.6 7.2 112.0 26.0 10.9 50.0 12.6...
  • Page 8 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Extended Slope Top Cabinet NCE09-18 Overall Cabinet Ext. Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 50.0 12.6 29.1 35.0 49.1 12.0 09-12 127.0 32.0 73.9 23.4 88.9 15.6 6.1 124.7 30.5 10.9...
  • Page 9 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Right Return Controls Detail...
  • Page 10 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Right Return Chassis Data = inches (cm)
  • Page 11 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Left Return Controls Detail...
  • Page 12 ENVISION CONSOLE INSTALLATION MANUAL Dimensional Data - Left Return Chassis Data = inches (cm)

  • Page 13: Installation Steps

    ENVISION CONSOLE INSTALLATION MANUAL Installation Steps Step 1: Unpack Equipment and Inspect for Damage Step 2: Determine Equipment Location • Choose level flooring surface (Correctable with shims. Do not pitch towards drain.) • Location of wall support and fasteners required to secure chassis backplate.
  • Page 14 ENVISION CONSOLE INSTALLATION MANUAL Installation Steps (cont.) Step 4: Provide Water and Condensate Drain Connections • A two-pipe reverse return piping configuration is recommended as it equalizes the piping circuit lengths and delivers even water flow to each unit. A direct return piping configuration may be used, but it may be difficult to achieve and maintain proper water flow to the units.
  • Page 15 ENVISION CONSOLE INSTALLATION MANUAL Installation Steps (cont.) Step 5: Provide Line Voltage Wiring • Check unit data plate located on control side of chassis for ampacity and fuse size. • Remove electrical knockouts from chassis backplate. • Run line voltage wiring through knockout and secure wiring to backplate or disconnect.
  • Page 16 ENVISION CONSOLE INSTALLATION MANUAL Installation Steps (cont.) Field Converting Console Chassis is normally configured with controls on right end and piping on left end (see Figure 3 top view). In this position panel number 1 would be positioned against wall or back plate. Unit may also be turned 180° against wall or back plate. In this position controls will be on left end and piping on right end panel number 2 would be positioned against wall or back plate.

  • Page 17: System Cleaning And Flushing

    ENVISION CONSOLE INSTALLATION MANUAL System Cleaning and Flushing Cleaning and Flushing Figure 7: Flushing with Water Shutoff Valve Equipped Systems Prior to start up of any heat pump, the water circulating system must be cleaned and flushed of all dirt and debris.

  • Page 18: Open Loop Ground Water Systems

    ENVISION CONSOLE INSTALLATION MANUAL Open Loop Ground Water Systems Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure. Insure proper water flow through the unit by checking pressure drop across the heat exchanger and comparing it to the figures in unit capacity data tables in the specification catalog.

  • Page 19: Electrical Connections

    National Electric Code, whichever is applicable. 208 Volt Operation All Envision Series 208/230 units are factory wired for 230 volt operation. For 208 volt operation, the red and blue trans- former wires must be switched.

  • Page 20: Unit Electrical Data

    ENVISION CONSOLE INSTALLATION MANUAL Unit Electrical Data Total Compressor Rated Voltage Model Motor Unit Circ Fuse/ Voltage Min/Max HACR 208-230/60/1 197/253 21.0 0.50 265/60/1* 238/292 22.0 0.50 208-230/60/1 197/253 25.0 0.50 265/60/1* 238/292 22.0 0.50 208-230/60/1 197/253 29.0 0.69 265/60/1* 238/292 28.0...

  • Page 21: Wiring Schematics

    ENVISION CONSOLE INSTALLATION MANUAL Wiring Schematic CCM - ELECTRONIC THERMOSTAT 208-230-265/60/1 Compressor Blue Unit Power Supply Ground 208-230/60/1 or Motor 265-277/60/1 Handi - Box Tan (33) White (28) Brown (26) Black (31) Red (32) White (28) Black (29) Black Red (30)

  • Page 22: Wiring Schematic

    Console Unit – Wiring Schematic 208-230-265/60/1 CCM – with Electric Heat and Electronic Stat ENVISION CONSOLE INSTALLATION MANUAL Wiring Schematic CCM w/EH - ELECTRONIC THERMOSTAT 208-230-265/60/1 Compressor Blue Unit Power Supply Ground 208-230/60/1 or Blue 265-277/60/1 Motor Handi - Box...
  • Page 23 ENVISION CONSOLE INSTALLATION MANUAL Wiring Schematic VERSATEC CONTROL - EH & REMOTE WALL THERMOSTAT 208-230-265/60/1 Legend for Schematic [A] Versatec Logic Board Physical Layout Normal Control Timing Table Blower off delay 30 seconds Compressor on delay 10 seconds FANCOM Short cycle delay...
  • Page 24 Microprocessor – with Remote Wall Stat & Electric Heat ENVISION CONSOLE INSTALLATION MANUAL Wiring Schematic VERSATEC CONTROL - EH & REMOTE WALL THERMOSTAT 208-230-265/60/1 Schematic [A] Black Compressor Motor Unit Brn/Wht Power Supply 208-230 /60/1 or Ground 265-277/60/1 White White...

  • Page 25: Wiring Schematics

    Console Unit – Wiring Schematic 208-230-265/60/1 97PXXX -XX FX10 – with Electric Heat ENVISION CONSOLE INSTALLATION MANUAL Wiring Schematic FX10 - EH 208-230-265/60/1 Compressor Blue Unit Power Supply 208-230/60/1 or Motor Ground Brn/Wht 265-277/60/1 Handi - Box White White Fan Speed...

  • Page 26: Envision Console Controls

    Compressor control module (CCM) controls are standard • High pressure and low pressure safety controls to on the Envision console heat pump. This control features protect the unit components. unit mounted thermostat and switches, • Lockout circuit to shut down unit operation upon Features of the standard control are: receipt of a fault indicator from the safety controls.
  • Page 27 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls Optional Versatec Microprocessor The user selects either “Heat/Cool” or “Fan Only” on the mode switch, then either “High” or “Low” at the fan speed Control Features switch. The temperature can be controlled by rotating the The Versatec microprocessor board provides control of thermostat control knob.
  • Page 28 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls prevent loss of refrigerant charge and a low suction tem- 30-second measurement of the fault (immediate for high perature thermistor for freeze sensing. Upon a continuous pressure), compressor operation is stopped. Control Tables for Optional Versatec Microprocessor...
  • Page 29 Integrated into BAS by adding communication module The most unique feature is integrating the FX10 into the Accessory Outputs Envision series as both the heat pump and DDC controller providing both a cost advantage and providing features Quantity 2. One cycled with fan, other with compressor.
  • Page 30 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls Control Timing & Fault Recognition Delays can be changed over a BAS or with a MUI. The control has an input programmed to enable field installed emergency Lead compressor “ON” delay ..........90 seconds heat in the event that the compressor is locked out.

  • Page 31: Sequence Of Operation

    ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls High Pressure (BI-11) - MS/TP @ 19,200 Baud rate - Limit devices to 40 on a single trunk line. The high-pressure switch shall be a normally closed (NC) switch that monitors the systems refrigerant pressure. If...
  • Page 32 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls Random Start Delay in medium speed and will operate in high speed when the compressor is operating at full capacity. This delay will be used after every power failure, as well as the first time the compressor is started after the control...
  • Page 33 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls ECM2 Blower Operation Inputs & Outputs Configuration Field Selectable Options Fan speeds will be selected through the user interface or the facility management system. There will be a total of 12 Water Coil Low Temp (Freeze Sensing) Limit Set Point (BI-5)
  • Page 34 LED 4 - On shows Reversing Valve in cool LED 1 - Flashing shows Compressor 1 running LED 8 - Flashing shows unit in ‘Test’ Mode LED 2 - Flashing shows Full Capacity Compressor running MUI Menu Navigation for Single Compressor - Envision Water-to-Air Welcome Info Status...
  • Page 35 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls MUI Menu Navigation for Single Compressor - Envision Water-to-Air Maint LOG_IN REQUIRED Maintenance User : <= maint => MinClgSetpt 60.0 ºF Code : 5667 MaxHtgSetpt 89.9 ºF W Coil LoLim1 30.0 ºF Press right arrow key W Coil LoLim2 15.0 ºF...
  • Page 36 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls N2 Open Point Description Point Type Point Address Long Name nciSetpoints.Occupied_Co Occupied Cooling Setpoint Input (Read/Write) nciSetpoints.Standby_Coo Standby Cooling Setpoint Input (Read/Write) nciSetpoints.Unoccupied_ Unoccupied Cooling Setpoint Input (Read/Write) nciSetpoints.Occupied_He Occupied Heating Setpoint Input (Read/Write) nciSetpoints.Standby_Hea...
  • Page 37 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls LonWorks LonWorks Point Description LonWorks Name SNVT Type SNVT Index SCPT Reference SCPT Index UCPT Index Occupied Cooling Setpoint Input (Read/Write) Standby Cooling Setpoint Input (Read/Write) Unoccupied Cooling Setpoint Input (Read/Write) nciSetpoints SNVT_temp_setpt...
  • Page 38 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls BACNet BACnet Point Description Object Identifier Property Full Reference Object Type Type Enumeration Instance Name Enumeration Analog Value Present_Value WFI##########.Occupied Cool.Present_Value Occupied Cooling Setpoint Input (Read/Write) Standby Cooling Setpoint Input (Read/Write) Analog Value Present_Value WFI##########.Unoccupied Cool.Present_Value...
  • Page 39 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls BACnet Variables Analog Value (Type 2) The variables will be listed with the point type and instance preceding the variable name. Occupied Cool [Write, Cooling setpoint in Occupied mode] Analog Input (Type 0)
  • Page 40 ENVISION CONSOLE INSTALLATION MANUAL Envision Console Controls BACnet Variables BO5 Output [Read, shows the BO5 (electric heat) output value, Inactive=Off, Active=On] 3:10 BO9 Output [Read, shows the BO9 output value, Inactive=Off, Active=On] Multistate Input (Type 13) 13:1 Effective Occupancy [Read, show the prevailing occupancy status of...

  • Page 41: Unit Startup Notes

    ENVISION CONSOLE INSTALLATION MANUAL Unit Startup Notes Emergency Electric Resistance Heat Hydronic Loop Controller for Boiler/Tower Installations A factory-installed emergency electric heater package is The hydronic loop controller is a microprocessor based available. Rated for 2,000 watts on models NC09 through control panel for control of water loop heat rejector (tower), NC12 and 3,000 watts on models NC15 through NC18.

  • Page 42: Unit Startup Checklist/Unit Startup Steps

    ENVISION CONSOLE INSTALLATION MANUAL Unit Startup Checklist / Unit Startup Steps Before Powering Unit, Check The Following: • High voltage is correct and matches nameplate. • Fuses, breakers and wire size correct. • Low voltage wiring complete. • Piping completed and water system cleaned and flushed.

  • Page 43: Unit Operating Parameters

    ENVISION CONSOLE INSTALLATION MANUAL Unit Operating Parameters Single Speed Models Cooling Entering Water Flow Suction Discharge Water Temp 09-18 09-18 Water Temp Air Temp GPM/Ton Pressure Pressure °F Superheat Subcooling Rise °F Drop °F DB PSIG PSIG 127 - 144...

  • Page 44: Startup/Troubleshooting Form

    ENVISION CONSOLE INSTALLATION MANUAL 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 EXPANSION VALVE SOURCE VALVE DISCHARGE °F...

  • Page 45: Pressure Drop

    ENVISION CONSOLE INSTALLATION MANUAL Pressure Drop Pressure Drop (psi) Model 30°F 50°F 70°F 90°F 110°F 3/4/08...

  • Page 46: Preventive Maintenance

    ENVISION CONSOLE INSTALLATION MANUAL Preventive Maintenance Water Coil Maintenance Condensate Drain In areas where airborne bacteria produce a slime in the 1. Keep all air out of the water. An open loop system should drain pan, it may be necessary to treat chemically to be checked to ensure that the well head is not allowing minimize the problem.
  • Page 48 Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 www.waterfurnace.com Envision Series Console Product: Type: Geothermal/Water Source Heat Pumps Size: 0.75-1.5 Ton Document: Installation Manual WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves...

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