Water 700A11 7 Series Installation Manual

7 series geothermal heat pump

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700A11

Geothermal Heat Pump

• R-410A Refrigerant

• 3, 4, 5 Ton Variable Speed

Installation Information

Water Piping Connections

Hot Water Generator Connections

Electrical

Startup Procedures

Troubleshooting

Preventive Maintenance

IM2700AN 06/13

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Summary of Contents for Water 700A11 7 Series

Page 1 700A11 Geothermal Heat Pump • R-410A Refrigerant • 3, 4, 5 Ton Variable Speed Installation Information Water Piping Connections Hot Water Generator Connections Electrical Startup Procedures Troubleshooting Preventive Maintenance IM2700AN 06/13...
Page 3: Table Of Contents
Open Loop Ground Water Systems ........
Page 4: Model Nomenclature
1 – 208-230/60/1 B – Bottom (Vertical) R – Rear (Vertical) Hot Water Generation S – Side (Horizontal) 0 – No Hot Water Generation E – End (Horizontal) 1 – Hot Water Generation with Factory Installed Pump Water Coil Option C –...
Page 5: General Installation Information
Care should be taken when units are located in unconditioned spaces to prevent WARNING: Before performing service or damage from frozen water lines and excessive heat that maintenance operations on a system, turn off main could damage electrical components.
Page 6: Installing Horizontal Units
The secondary drain pan prevents tighten the brackets to the unit using the weld nuts located possible condensate overflow or water leakage damage to on the underside of the bottom panel. When attaching the the ceiling. The secondary drain pan is usually placed on a...
Page 7: Duct System
NV060 2100 Water Piping The proper water flow must be provided to each unit whenever the unit operates. To assure proper flow, use pressure/temperature ports to determine the flow rate. These ports should be located at the supply and return water connections on the unit.
Page 8: Water Quality
The heat Units with cupronickel heat exchangers are recommended exchanger coils in ground water systems may, over a period for open loop applications due to the increased resistance of time, lose heat exchange capabilities due to a buildup to build-up and corrosion, along with reduced wear caused of mineral deposits inside.
Page 9: Closed Loop Ground Source Systems
After pressurization, be sure to turn the venting (burping) maximum=100% speed levels. See the 7 Series Variable screw in the center of the pump two (2) turns open (water Speed Pump Setup and Modulating Water Valve Setup will drip out), wait until all air is purged from the pump, instructions within the Unit Startup section which is located then tighten the plug.
Page 10: Open Loop Ground Water Systems
1.5-2 gpm of flow per ton of cooling capacity is 24 VAC recommended in open loop applications. 0-10DC Discharge water from the unit is not contaminated in any VALVE manner and can be disposed of in various ways, depending ABC BOARD on local codes, i.e.
Page 11: Hot Water Generator Connections
Valve Valve 3. Close the cold water inlet valve to the water heater tank. 4. Drain the tank by opening the valve on the bottom of the tank, then open the pressure relief valve or hot water faucet.
Page 12 Be sure the switch for the hot water generator pump is “ON”. 14. Allow the unit to heat water for 15 to 20 minutes to be sure operation is normal. CAUTION: Never operate the HWG circulating pump while dry.
Page 13: Electrical Connections
AXB board. When powering high VA draw components Consult the Unit Electrical Data in this manual for correct such as electronic air cleaners or VM type open loop water fuse sizes. valves, R should be taken ‘pre-fuse’ from the ‘R’ quick connect on the ABC board and not the ‘post-fuse’...
Page 14: Electronic Thermostat Installation
7 SERIES 700A11 INSTALLATION MANUAL Electrical Connections cont. Figure 14: Pump Wiring 208-230/60/1 Pump Power Wiring See Figure 14 for electrical connections from control box to pumps. 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.
Page 15: Auxiliary Heat Ratings
7 SERIES 700A11 INSTALLATION MANUAL Auxiliary Heat Ratings Btu/h Model Compatibility Model Stages Min CFM 208V 230V 208V 230V EAL(H)10 24,600 32,700 1100 • • • EAL(H)15 10.8 14.4 36,900 49,100 1250 • • • EAL(H)20 14.4 19.2 49,200 65,500 1500 •...
Page 16: Blower Performance Data
7 SERIES 700A11 INSTALLATION MANUAL Blower Performance Data Variable Speed ECM Blower Motor Air Flow Model Speed Speed Speed Speed Speed Speed Speed Speed Speed Speed Speed Speed 1100 1220 1330 1440 1540 1575 0.50 1000 1100 1200 1300 1410 1520 1630 036 w/1hp*...
Page 17: Dimensional Data
Discharge flange is field installed and extends 1 in. [25.4mm] from cabinet Decorative molding and/or water connections extend 1.2 in. [30.5mm] beyond front of cabinet. Louvered vents in the compressor section right side access panel extend 1/2 in. [12.7 mm] from side of cabinet. Allow clearance for venting.
Page 18 Unit shipped with deluxe 2 in. (field adjustable to 1 in.) duct collar/filter rack extending from unit 3.25 in. and is suitable for duct connection. Decorative molding and/or water connections extend 1.2 in. [30.5mm] beyond front of cabinet. Louvered vents in the compressor section right side access panel extend 1/2 in. [12.7 mm] from side of cabinet. Allow clearance for venting.
Page 19 Discharge flange is field installed and extends 1 in. [25.4mm] from cabinet Decorative molding and/or water connections extend 1.2 in. [30.5mm] beyond front of cabinet. Louvered vents in the compressor section right side access panel extend 1/2 in. [12.7 mm] from side of cabinet. Allow clearance for venting.
Page 20: Horizontal Dimensional Data
Discharge flange is field installed and extends 1 in. [25.4mm] from cabinet Decorative molding and/or water connections extend 1.2 in. [30.5mm] beyond front of cabinet. Louvered vents in the compressor section right side access panel extend 1/2 in. [12.7 mm] from side of cabinet. Allow clearance for venting.
Page 21: Physical Data
11 x 10 [279 x 254] High Static Blower Wheel Size - [Dia. x W], in. [mm] 11 x 10 [279 x 254] Coax and Water Piping Water Connections Size - Swivel - in [mm] 1 [25.4] 1 [25.4] 1 [25.4] HWG Connection Size - Female Sweat I.D.
Page 22: The Aurora™ Advanced Vs Control System
• Advanced Microprocessor Features Smart Grid, Home Automation Alarm Inputs, and Accessory2 Relay (HRV/ERV) Advanced Hot Water Generator Microprocessor and separate power relay for Hot Water Generator Pump with digital • Control temperature monitoring and multiple HWG setpoint selection. Microprocessor and separate power relay for loop pump and inline circuit breakers •...
Page 23: Control Features
Requires thermostat TPCM32U04 or TPCC32U01. Refrigeration Monitoring Kit Monitors real time pressures, temperatures, superheat, and subcooling. Standard Monitors air and water temperatures, and water flow rate and calculates heat of Performance Monitoring Kit Optional Sensor Kit extraction/rejection. Data Logging (AWL) Kit Allows data logging of up to 12 months.
Page 24 Loop Pump Linking be too low to allow proper heating of water. The control will This input and output are provided so that two units can monitor water and refrigerant temperatures to determine if be linked together with a common flow center.
Page 25 ABC SW1 for 2 - 5 seconds. In test mode most of the control timings will be shortened by a air temperature and a water flow rate sensor. With this kit factor of sixteen (16). LED3 (green) will flash at 1 second heat of extraction and rejection will be calculated.
Page 26 ABC DIP Switch (SW2) Field Selectable Options via Software SW2-1 FP1 Selection – Low water coil temperature limit (Selectable via the Aurora AID Tool) setting for freeze detection. On = 30°F; Off = 15°F. Many options are field selectable and configurable in SW2-2 FP2 Selection –...
Page 27 7 SERIES 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. Lockout – when locked out, the blower will operate recognized as a fault. This fault will be ignored for the initial continuously in “G” blower speed setting. The Alarm output 2 minutes of the compressor run time.
Page 28 7 SERIES 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. have the cooling airflow adjustment applied. In all cooling Aurora Advanced VS Control LED Displays operations, the reversing valve directly tracks the O input. These three LEDs display the status, configuration, and Thus, anytime the O input is present, the reversing valve fault codes for the control.
Page 29 7 SERIES 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont.
Page 30 7 SERIES 700A11 INSTALLATION MANUAL The Aurora Advanced VS Control System cont. ABC Control Board Layout AXB Control Board Layout See Figure 1 for DHW wiring. LED 1 LED 2 FP1 – 15 F/30 ECM PWM FP2 – 15 F/30 RV –...
Page 31: Operation Logic
The speed of the pump will be increased as the compressor will be started. The compressor will continue to run at speed is increased to maintain adequate water flow. speed 6 for 60 seconds for oil circulation. During the 60...
Page 32: Wiring Schematics
Acc 2 – Dip 4 Acc 2 – Dip 5 Smart Grid Home Automation Pink F FG CC CCG REVREVFP1 FP1 FP2 FP2 LPS LPSHPSHPS Pink HOT WATER OPTION F1-3A Violet(42) K5-Alarm Relay ACC COM Blue(24) MODULATING VALVE ACC NO...
Page 33 Figure 1: K6 Relay and NO on Optional Internal AXB Board Hot Water 1 - Switch blue and red wires for 208V operation. Generation Pump 2 - The blk/wh and gray/wh wires are removed when Aux Heat is installed Wiring Schematic 3 - Use manufacturer’s part number 19P592-01 (jumper bar assembly)
Page 34 7 SERIES 700A11 INSTALLATION MANUAL Wiring Schematics cont. Aurora Variable Speed Drive/EEV Wiring Suction Discharge Entering Pressure Pressure Compressor Water Temp Discharge Unit Power Ambient Line Temp 208-230/60/1 Circuit Breaker NOTE 11 Ferrite Toroid Black Circuit Breaker Danfoss Variable Speed...
Page 35 Flash Code 14 Load Shed Flash Code 5 RV - Reversing Valve coil K5 - DHW pump relay Alarm - Hot Water Flash Code 15 Flash Code 6 Loop pump relay SW1 - DIP package 5 position AXB K6 -...
Page 36: Unit Startup
HW switch on the front cabinet) • Air is purged from closed loop system. ii. DHW Setpoint – 130 °F is the default • Isolation valves are open, water control valves or loop but can be changed from 100 to 140 °F pumps wired.
Page 37 Activate ‘Energy Option’ to activate the sensors on temperature and a water flow rate sensor. With this kit heat for compressor (2), blower and aux heat current sensor. of extraction and rejection will be calculated. This requires c.
Page 38: Pressure Drop
(heating compressor speed 12), depending 5. Verify that the water flow rate is correct by measuring the on the fan speed and entering water temperature. pressure drop through the heat exchanger using the P/T 14.
Page 39: Refrigerant Circuit Guideline
Normal/Low Normal Low Air Flow Heating High High High High/Normal High Low Air Flow Cooling Low/Normal High High Low Water Flow Heating Low/Normal Low/Normal High High Low Water Flow Cooling High High High High High High Air Flow Heating High...
Page 40: Operating Parameters
7 SERIES 700A11 INSTALLATION MANUAL Operating Parameters Model 060 - Comp Speed 9 (1800 cfm) Cooling -- No Hot Water Generation Entering Water Water Flow Suction Pressure Discharge Water Temp Air Temp Drop Temp °F Superheat Subcooling psig Pressure psig Rise °F...
Page 41: Reference Calculations And Legend
Compare the change in temperature on the To check the unit control board for proper operation: air side as well as the water side to the Unit Operating General Check Parameters tables. If the unit’s performance is not within •...
Page 42 Flow Meter Entering Water Thermistor (Sensor Wire Wrapped 4 Times Around Water Line) Leaving Air Thermistor Wire Bundle In FP2 Sensor Blower Water Line View of Coax Compartment) Performance Pressure Transducer Line Thermistor Ambient Air Thermistor Wire Bundle In Compressor Compartment) Rev.
Page 43 °F °F Superheat High Speed Subcooling BRINE IN BRINE OUT °F °F Low Speed Water to Water Application Low Speed BRINE IN BRINE OUT hook up pressure gauges unless pressure sensors are suspect. ANALYSIS SAT °F °F °F °F High Speed...
Page 44 NOTES: Use 500 for pure water, 485 for methanol or Environol™. (This constant is derived by multiplying the weight of one gallon of water (8.34) times the minutes in one hour (60) times the specific heat of the fluid. Water has a specific heat of 1.0.
Page 45: Preventive Maintenance And Replacement Procedures
Run the filter must have positive static pressure. under warm water and gently rub. Let the filter dry. The, re- install the filter and cover. NOTE: On open loop systems, if the installation is in...
Page 46: Service Parts List
33P526-05 33P526-05 33P526-05 Hot Water Generator 62P516-03 62P516-03 62P516-03 Discharge Muffler 36P503B02 36P503B02 36P503B02 Filter Dryer 36P500B01 36P500B02 36P500B02 Hot Water Generator Pump 24P501A01 24P501A01 24P501A01 Hot Water Generator 62P516-03 62P516-03 62P516-03 Contactor 13P004A03 13P004A03 13P004A03 Transformer 208-230/60/1 15P501B01 15P501B01...
Page 47: Revision Guide
7 SERIES 700A11 INSTALLATION MANUAL Revision Guide Pages: Description: Date: Updated Primary/Secondary Pump Wiring Diagram 26 Jun 2013 Updated Open Loop Water Valve Information 26 Jun 2013 22 - 29 Updated Aurora Controls Information 26 Jun 2013 32 - 35 Updated Wiring Diagram...
Page 48 Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 www.waterfurnace.com Product: 7 Series 700A11 Type: Geothermal Heat Pump Size: 3-5 Ton Variable Speed Document: Installation Manual ISO 17025 Accredited ©2013 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of IM2700AN 06/13 continual product research and development and reserves the right to change design and speciﬁ...

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