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IM2705AN 01/15

Installation Information

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Startup Procedures

Troubleshooting

Preventive Maintenance

7 Series 50Hz 700A11 Installation Manual

Geothermal Heat Pump - 50Hz

• R-410A Refrigerant

• 009, 012, 015 kW Variable Speed

700A11

CUS

Summary of content (48 pages)

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7 Series 50Hz 700A11 Installation Manual 700A11 Geothermal Heat Pump - 50Hz • R-410A Refrigerant • 009, 012, 015 kW Variable Speed Installation Information Water Piping Connections Hot Water Generator Connections Electrical Startup Procedures Troubleshooting Preventive Maintenance C IM2705AN 01/15 US
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7 SERIES 700A11 INSTALLATION MANUAL Table of Contents Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Closed Loop Ground Source Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Open Loop Ground Water Systems . . .
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Model Nomenclature 1 2-3 4 5-7 8 9 10 11 12 13 14 15 16 17 N VK V 012 * 6 1 1 C T L 0 J N Future Option N - None Model Type N – 7 Series Water-to-Air Control Option J – AuroraTM Variable Speed Control K – Aurora Variable Speed Control with Performance Monitoring Compressor Type VK – Variable Speed Cabinet Configuration V – Vertical H - Horizontal Filter Option 0 – 5.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL General Installation Information Safety Considerations locate the unit above supply piping. Care should be taken when units are located in unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical components. WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL General Installation Information cont. vibration could loosen a single nut. To allow filter access, one bracket on the filter side should be installed 180° from the position shown in Figure 3. The unit should be pitched approximately 6.35mm towards the drain in both directions to facilitate the removal of condensate. Use only the bolts provided in the kit to attach hanger brackets. The use of longer bolts could damage internal parts.
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SERIES 50Hz 700A11 INSTALLATION MANUAL General Installation Information cont. seal is in the swivel connector prior to attempting any connection. The rubber seals are shipped attached to the waterline. To make the connection to a ground loop system, mate the brass connector (supplied in CK4LI connector kit) against the rubber gasket in the swivel connector and thread the female locking ring onto the pipe threads, while maintaining the brass connector in the desired direction.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL General Installation Information cont. can likewise become scaled and possibly plugged. In areas with extremely hard water, the owner should be informed that the heat exchanger may require occasional flushing. Water Quality In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present, a closed loop system is recommended.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Closed Loop Ground Source Systems NOTE: For closed loop systems with antifreeze protection, set SW2-1 to the “LOOP” (-9.4°C) position. (Refer to the DIP Switch Settings table in the Aurora Control section.) Multiple Units on One Flow Center NOTE: This feature is only available in the Aurora Advanced Control package (AXB board), NOT the Aurora Base Control (ABC).
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Open Loop Ground Water Systems Typical open loop piping is shown below. 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.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Hot Water Generator Connections To maximize the benefits of the hot water generator a minimum 189-liter water heater is recommended for higher demand applications, use an 302.8-liter water heater or two 189-liter water heaters connected in a series as shown below. Two tanks plumbed in a series is recommended to maximize the hot water generator capability. Electric water heaters are recommended.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Hot Water Generator Connections cont. Plumbing Installation Hot Water Generator Startup 1. Inspect the dip tube in the water heater cold inlet for a check valve. If a check valve is present it must be removed or damage to the hot water generator circulator will occur. 2. Remove drain valve and fitting. 3. Thread the 19.1mm NPT x 88.9mm brass nipple into the water heater drain port. 4. Attach the center port of the 19.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Electrical Connections General Accessory Relay 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. The compressor has no internal overload. The circuit breaker in the control box is the overload protection for the drive and the compressor.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Electrical Connections cont. Figure 14: Pump Wiring 220-240/50/1 Pump Power Wiring CB See Figure 14 for electrical connections from control box to pumps. Wire Nuts PB1 FC1/FC2 style flow centers with fixed speed pumps connect to PB1 in the control box. If using a variable speed pump it should be connected to L1 and L2 on the AXB. L1 L2 External Loop Pump(s) (ex. UP26-99) 220-240/50/1 1/2 hp Max (Optional) External Variable Speed Loop Pump (ex.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Auxiliary Heat Ratings kW Model Compatibility Model Stages 208V Min L/s 230V 009 012 015 EAL(H)10 7.2 9.6 2 519 • • • EAL(H)15 10.8 14.4 3 590 • • • EAL(H)20 14.4 19.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Blower Performance Data Variable Speed ECM Blower Motor Air Flow Max ESP Speed 1 Speed 2 Speed 3 Speed 4 Speed 5 Speed 6 Speed 7 Speed 8 Speed 9 Speed 10 Speed 11 Speed 12 (Pa) 135 179 248 319 385 463 519 576 628 680 727 743 009 124.50 G L H Aux 227 267 314 359 411 472 519 566 614 665 717 769 009 w/746W* 186.75 G L H Aux 224 293 345 401 481 538 599 661 717 779 845 908 012 186.75 G L H Aux 189 283 392 496 580 661 736 802 883 949 1010 1069 015 186.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Vertical Dimensional Data Top Air Discharge LEFT RETURN RIGHT RETURN Q P R M O L Q O L N R N TOP T TOP T 1.9in [4.8cm] 1.9in [4.8cm] S S I KJ C DE HF G A C FRONT 2 ft [61 cm] Primary Service Access B B RIGHT SIDE LEFT SIDE Overall Cabinet Vertical Top Flow Model Electrical Connections Water Connections I D A B C Loop Width Depth Height In J Discharge Connection duct flange installed (± 2.54mm) K E F G H Loop HWG 12.7mm 12.7mm 19.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Vertical Dimensional Data cont. Bottom Air Discharge RIGHT RETURN LEFT RETURN 1.70 (4.3 cm) 4 3 C C 2 1 S S F I T K J G E T D B B LEFT SIDE RIGHT SIDE 1.90 (4.7 cm) 5 R Q R Q H A FRONT L N 2 ft [61 cm] Primary Service Access L O O M P N LEFT BOTTOM DISCHARGE FLOOR FOOT PRINT RIGHT BOTTOM DISCHARGE FLOOR FOOT PRINT Water Connections Overall Cabinet Bottomflow Models A B C Width Depth Height 009cm. 015 64.8 80.0 158.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Vertical Dimensional Data cont. Rear Air Discharge 1.90 in. [4.8 cm] 1.90 in. [4.8 cm] I K J F G D A FRONT 2 ft [61 cm] Primary Service Access O H E R Q T T Q R P M M S S L C C C C N N B B A SIDE VIEW LEFT RETURN SIDE VIEW RIGHT RETURN REAR VIEW RIGHT RETURN A REAR VIEW LEFT RETURN Overall Cabinet Vertical Rear Discharge Model Electrical Connections Water Connections I J Discharge Connection duct flange installed (± 2.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Horizontal Dimensional Data TOP VIEW P Q 2.1in [5.4cm] MOUNT (2) HANGER BRACKETS AS SHOWN TO ALLOW ACCESS TO FILTER 2 ft [61 cm] Primary Service Access SIDE DISHCARGE VIEW FRONT VIEW A 1.9in [4.8cm] END VIEW B S N O M I KJ D E F L L G O S R C H AS SHOWN LR UNIT (RR UNIT ON OPPOSITE SIDE—SAME DIMENSIONS) Electrical Connections Overall Cabinet I J K 12.7mm 12.7mm 19.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Physical Data Variable Speed Model 009 Compressor (1 each) 012 015 Variable Speed Scroll Factory Charge R-410A, kg Vertical 2.69 3.40 3.96 Factory Charge R-410A, kg Horizontal 2.69 3.85 4.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora™ Advanced VS Control System protocol to communicate between modules. Each module contains the logic to control all features that are connected to the module. The ABC has two Modbus channels. The first channel is configured for connecting to devices such as a communicating thermostat, expansion board, or other devices. The second channel is configured for connecting the Aurora Interface Diagnostics Tool (AID Tool).
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. Add On Control Feature Kits (field or factory Installed) Description Aurora Advanced VS Monitors real time power consumption of compressor, blower, aux heat and pump. Requires thermostat TPCM32U04 or TPCC32U01. Standard Refrigeration Monitoring Kit Monitors real time pressures, temperatures, superheat, and subcooling.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. loop temperature in cooling mode, loop temperatures may be too low to allow proper heating of water. The control will monitor water and refrigerant temperatures to determine if conditions are satisfactory for heating water. Loop Pump Linking This input and output are provided so that two units can be linked together with a common flow center.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. Home Automation 2 – E24 HA2 Special Modes and Applications With a closed dry contact signal, this input will cause an alarm and Alert Code 24 to indicate on the stat or flash on ABC.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. Variable Speed ECM Configuration Mode Alarm Jumper Clip Selection The control is placed in the variable speed ECM configuration mode by holding the push-button switch SW1 for 5 to 10 seconds, the high, low, and G variable speed ECM speeds can be selected by following the LED display lights. LED2 (yellow) will fast flash when entering the variable speed ECM configuration.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. recognized as a fault. This fault will be ignored for the initial 2 minutes of the compressor run time. Lockout – when locked out, the blower will operate continuously in “G” blower speed setting. The Alarm output (ALM) and Lockout output (L) will be turned on. The fault type identification display LED1 (Red) shall flash the fault code.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. have the cooling airflow adjustment applied. In all cooling operations, the reversing valve directly tracks the O input. Thus, anytime the O input is present, the reversing valve will be energized. Aurora Advanced VS Control LED Displays These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain English via the Aurora AID Tool.
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Miscellaneous ABC & AXB Basic Faults 29 Danfoss VS Drive 8 10 11 Fault-Over/Under Voltage Fault-Compressor Monitor Fault-FP1 & 2 Snsr Error 71 72 73 74 SafeMd-SucTmpSnr SafeMd-LATSensor SafeMd-MaxOpPres 61 Fault-MultSafeMd Fault-LossofCharge 58 59 57 Fault-Over/UnderVolt Fault-DrvIntErr MOC/AOC 56 Fault-OverCurrnt Fault-HiDrivTemp 55 51 Fault-DisTmpSnr Fault-OutEnvelop 49 SafeMd-AmbTmpSnr 54 48 SafeMd-EEVOutCom Fault-LowSupVolt 47 SafeMd-EEVIndCom 52 46 Derate-OutPw
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. P11 DH KM6 KM1 1 2 1 1 3 4 2 2 KM2 KM7 KM9 30 SPR ANA CT1 2 1 P5 CT2 4 3 CT1 2 1 R (-) C P9 ABC (+) R SUC P P12 Variable Speed Drive (-) C ZONE (+) R (-) V+ RS485 (+) C R TX P7 SCT HA1 HA2 P4 MOTOR RX EEV Board Layout P6 P18 Acc 2 – Dip 4 Acc 2 – Dip 5 P17 Future Use Future Use 4 HW P3 LOOP Modbus Add.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Operation Logic Heating Mode Variable Speed Loop Pump When the variable speed controls determine that heating is needed in the space the blower will be turned on, the compressor will be ramped to speed 6 and the loop pump will be started. The compressor will continue to run at speed 6 for 60 seconds for oil circulation.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Wiring Schematics Aurora Variable Speed 1 Orange(9) 1 Pump 2 Brown(10) G Violet(8) NOTE 12 VS Pump Violet(7) Red Black Black Circuit Breaker L2 L2 NO T2 NOTE 2 Black/White(5) DH ACC2 ANA P15 CT2 CT1 4 3 2 1 C S +5 2 1 C OUT C IN VS DATA VS PUMP PUMP SLAVE 5 P11 R G PWM CFM C1 C2 Red 220V NOTE: 9 Black AUXILIARY HEAT CT Black Brown BLOWER CT Brown Transformer Yellow NOTE: 8 24V 2 3 Acc 2 – Dip 4 Acc 2 – Dip 5 4 RV 5 P18 SCT P17
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Wiring Schematics cont. Aurora Variable Speed cont.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Wiring Schematics cont. Aurora Variable Speed Drive/EEV Wiring 2 P13 RV – B/O 3 ACC – Dip 4 4 ACC – Dip 5 5 CC – Dual/Single 6 Fault G SW1 Test L – Pulse/Continuous 7 Reheat/Normal 8 Status Config P3 P6 CC2 AURORA BASE CONTROL™ CC – K2 RS 485 Factory Use G P11 EEV2 1 C MASTER EEV 2 EXT.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Wiring Schematics cont. Aurora Variable Speed Drive/EEV Wiring cont.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Unit Startup 2. Aurora Setup Screen a. ECM Setup for Heating Airflow – select G, low, high and aux blower speeds as appropriate for the unit and electric heat. b. Cooling Airflow % – sets the cooling airflow % from heating airflow. c. AXB Setup i. DHW Enable – Ensure air is purged from HW system before enabling (remember the HW switch on the front cabinet) ii. DHW Setpoint – 54.4°C is the default but can be changed from 37.8 to 60°C iii.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Unit Startup cont. line, suction temperature, and existing cooling liquid line (FP1). These sensors allow the measurement of discharge and suction pressures, suction and liquid line temperatures as well as superheat and subcooling. This information will only be displayed on the AID Tool.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Unit Startup cont. 4. Be sure that the compressor and water control valve or loop pump(s) are activated. 5. Verify that the water flow rate is correct by measuring the pressure drop through the heat exchanger using the P/T plugs and comparing to unit performance data in catalog or view on the AID Tool if Performance Kit is installed. 6. Check the temperature of both the supply and discharge water (see the Unit Operating Parameters tables). 7.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Refrigerant Circuit Guideline Head Pressure Symptom Suction Pressure Compressor Amp Draw Superheat Air Temp. Differential Subcooling Water Temp.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Operating Parameters Model 015 - Compressor Speed 9 (849.5 L/s) Cooling -- No Hot Water Generation Entering Water Temp °C Water Flow l/s -1.1 10.0 21.1 32.2 43.3 0.85 0.85 0.85 0.85 0.85 Suction Pressure kPa 841.2-875.6 951.5-986.0 986.0-1020.4 1013.5-1048.0 1027.3-1061.8 Discharge Pressure kPa 1117.0-1185.9 1482.4-1551.3 1930.5-1999.5 2461.4-2530.4 3102.6-3171.6 Superheat Subcooling -6.7-(-4.4) -14.4-(-12.2) -14.4-(-12.2) -14.4-(-12.2) -14.4-(-12.2) -15.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Reference Calculations Heating Calculations: Legend ABBREVIATIONS AND DEFINITIONS: Cooling Calculations: COP EER ELT EST FLA FtHd gpm HC HE HR kPa kW L/s LLT LRA LST LWPD MCC PD psi P/T RLA TC W HR WF x 500 LWT = EWT - HE WF x 500 LWT = EWT + LAT = EAT + HC AF x 1.08 LAT (DB) = EAT (DB) - SC AF x 1.08 LC = TC - SC TH = HC + HW S/T = SC TC NOTE: * When using water. Use 4.1 for 15% methanol/water or Environol solution.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Troubleshooting cont.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Startup/7roubleshooting Form Controls Info: Installer: ABC Version: Phone #: AXB Version: Date: Problem: IZ2 Version: Model #: T-Stat Version: Serial #: Installed Sensors: COOLING CYCLE ANALYSIS kPa = °C °C °C High Speed Unit Amp Draw: °C AIR COIL SAT °C Loop: Open Closed Line Voltage: °C Low Speed SUCTION COMPRESSOR ELECTRONIC EXPANSION VALVE COAX LOAD REVERSING VALVE COAX SOURCE DISCHARGE Hot Water Generator $C °F LIQUID LINE °C °C
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Troubleshooting cont. Variable Speed Startup/Troubleshooting Form 1. Job Information Model # Job Name: Serial # Install Date: 2. Flow Rate in L/s Loop: Open / Closed Hot Water Generator: Y / N SOURCE COAX HEATING SPEED 12 HEATING SPEED 4 COOLING SPEED 9 COOLING SPEED 3 WATER IN Pressure: a. kPa a. kPa a. kPa a. kPa WATER OUT Pressure: b. kPa b. kPa b. kPa b. kPa Pressure Drop: a - b c. kPa c. kPa c. kPa c.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Preventive Maintenance Water Coil Maintenance Other Maintenance 1. Filters 2. 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. Keep the system under pressure at all times. It is recommended in open loop systems that the water control valve be placed in the discharge line to prevent loss of pressure during off cycles.
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Service Parts List Misc Sound Jacket 048 060 34P647-01 34P648-01 34P649-01 Parts List Air ECM Motor Compressor Filters & Blower Compressor 220-240/50/1 Vertical 036 92P504A05 92P504A05 92P504A05 Power Harness 11P853-01 11P853-01 11P853-01 ECM Motor 220-240/50/1 14S545-01 14S546-01 14S547-01 ECM Blower Housing 53P501B01 53P501B01 53P501B01 ECM Harness - Low Voltage 11P827-02 11P827-02 11P827-02 ECM Power Harness 11P585B03 11P585B03 11P5
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7 SERIES 50Hz 700A11 INSTALLATION MANUAL Revision Guide Pages: Description: Date: By: All First Published 05 Sept 2013 DS 25 Corrected temperatures in “Active- Dehumidification” section 18 Nov 2014 MA 47
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Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 USA www.waterfurnace.com Product: Type: Size: Document: 7 Series 700A11 Geothermal Heat Pump - 50Hz 009 - 015 kW Variable Speed Installation Manual C US ISO 17025 Accredited ©2015 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 speciﬁcations without notice.