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Enertech
Console
(ERC) Series
Commercial Console
Water-Source
Heat Pumps
Installation, Operation
& Maintenance
97B0035N09
Revised: June 6, 2023
®
Piping Connections - ERC Size 18
Piping Connections
Table of Contents
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Table of Contents
Troubleshooting
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Summary of Contents for Enertech ERC Series
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Page 1: Table Of Contents
Ground-Water Heat Pump Applications Water Quality Requirements Electrical - Line Voltage Electrical Data Thermostat ERC Series Wiring Diagram Matrix Controls: CXM2 and DXM2.5 Operating Limits and Commissioning Conditions Piping System Cleaning and Flushing Commercial Console Unit and System Checkout Procedure... - Page 2 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 This Page Intentionally Left Blank E n e r t e c h Wa t e r - S o u r c e H e a t P u m p s...
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Page 3: Model Nomenclature: Console (Erc) Series
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Model Nomenclature: Console (ERC) Series E R C S S C S R S MODEL TYPE STANDARD ERC = Console S = Standard PIPING CONNECTIONS UNIT SIZE 09, 12, 15, 18... -
Page 4: General Information
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 General Information Safety CAUTION: Indicates a potentially hazardous situation or Warnings, cautions, and notices appear throughout this an unsafe practice, which if not avoided could result in manual. - Page 5 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 General Information, Cont’d. Inspection - Upon receipt of the equipment, carefully Prepare units for installation as follows: check the shipment against the bill of lading. Make sure Compare the electrical data on the unit nameplate all units have been received.
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Page 6: Unit Physical Data
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Unit Physical Data Model Compressor (1 Each) Rotary Factory Charge HFC-410A (oz) [kg] 28 [0.794] 29 [0.822] 33 [0.907] 39 [1.105]... -
Page 7: Installation
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Installation The installation of Console Water-Source Heat Pumps 9. Before making the final water connections, flush the and all associated components, parts and accessories system as described in the Start Up section of this that make up the installation shall be in accordance with manual. - Page 8 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Installation, Cont’d. ⚠ ⚠ CAUTION! If the building drain connection is parallel with floor, the height can be up to 1-1/2 inches [38 mm] above the subbase for proper pitch and correct drainage.
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Page 9: Piping Connections - Erc Size
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Piping Connections – ERC Size 09-15 Right Hand Configuration Right Hand Configuration 40.98 40.98 (1040) Optional Flow (1040) Optional Flow Regulator Regulator 1.62 (41) Optional 1.62 (41) - Page 10 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Piping Connections, Cont’d. – ERC Size 18 Right Hand Configuration 40.98 (1040) Optional Flow Regulator 1.62 (41)
- Page 11 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Piping Connections, Cont’d. ⚠ ⚠ Installation of Supply and Return Piping - Follow these WARNING! piping guidelines. 1. Install a drain valve at the base of each supply and WARNING! Polyolester Oil, commonly known as POE oil, is return riser to facilitate system flushing.
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Page 12: Water-Loop Heat Pump Applications
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Water-Loop Heat Pump Applications Commercial Water Loop Applications - Commercial The piping system should be flushed to remove dirt, piping... -
Page 13: Ground-Loop Heat Pump Applications
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Ground-Loop Heat Pump Applications ⚠ ⚠ Antifreeze - If any liquid fluid or piping is exposed to CAUTION! unconditioned ambient below 42°F (5.5 C), antifreeze must be added. -
Page 14: Ground-Water Heat Pump Applications
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Ground-Water Heat Pump Applications Open Loop - Ground Water Systems - Shut off valves and Langelier Saturation indicies should be calculated. - Page 15 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Ground-Water Heat Pump Applications, Cont’d. Flow Regulation - Flow regulation can be accomplished Notice! Ground-water applications for commercial by two methods. One method of flow regulation involves buildings with more than 2-3 units should include a simply adjusting the ball valve or water control valve on the plate frame heat-exchanger to isolate the heat pumps...
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Page 16: Water Quality Requirements
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Water Quality Requirements Table 3: Water Quality Requirements Clean water is essential to the performance and life span of water source heat pumps. Contaminants, chemicals, and minerals all have the potential to cause damage to the water heat exchanger if not treated properly. - Page 17 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Water Quality Requirements, Cont’d. 1. The Water Quality Table provides water quality Hydrogen Sulfide has an odor of rotten eggs. If one α...
- Page 18 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Water Quality Requirements, Cont’d. Measuring Earth Ground Resistance � 0.02 Well Casing Building Ground Rod OHM meter Measure the earth ground bond using an Ohm meter between the building's ground rod and the steel well casing.
- Page 19 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Water Quality Requirements, Cont’d. Measuring Electrolysis Voltage and Current 300mV Heat Pump Volt Meter Wire Electrode inserted into port for Voltage measurement Pete's Port Water-in Water-out...
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Page 20: Electrical - Line Voltage
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Electrical – Line Voltage ⚠ ⚠ General Line Voltage Wiring - Be sure the available WARNING! power is the same voltage and phase shown on the unit serial plate. -
Page 21: Electrical Data
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Electrical Data Table 4: ERC Electrical Data Pump Total Compressor Voltage Min/Max Model Voltage Motor Unit Circuit Fuse Option Code Voltage Amps Amps 8.60 10.60... - Page 22 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Electrical Data, Cont’d. ⚠ ⚠ Figure 3: Typical Field Installed Wiring WARNING! WARNING! To avoid possible injury or death due to electrical...
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Page 23: Thermostat
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Thermostat Unit-Mounted Control Models include digital display unit- Thermostat has advanced features to be changed by mounted auto changeover (ACO) control. (see Figure 5). qualified installer only (do not use code 99- to restore factory default settings, reset each code if needed.) Figure 5: ACO Thermostat... - Page 24 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Thermostat, Cont’d. Optional Wall-Mounted Thermostat Figure 7: Typical Remote Thermostat Wiring ERC WSHP units (Model digit 8 is C, D, F, or K) are built...
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Page 25: Erc Series Wiring Diagram Matrix
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 ERC Series Wiring Diagram Matrix Please contact our Technical Service Department at 618-664-5860 for wiring diagram information. Unit Mounted DDC MPC All Sizes &... -
Page 26: Controls: Cxm2 And Dxm2.5
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Controls: CXM2 and DXM2.5 CXM2 Controls For detailed controller information, see the CXM2 Application, Operation, and Maintenance (AOM) manual (part # 97B0137N01). -
Page 27: Operating Limits And Commissioning Conditions
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Operating Limits and Commissioning Conditions Environment - This unit is designed for indoor installation The commissioning table indicates air and water only. Do not install in an area subject to freezing or where temperatures which are suitable for initial unit humidity levels can cause cabinet condensation. -
Page 28: Piping System Cleaning And Flushing
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Piping System Cleaning and Flushing Piping System Cleaning and Flushing - Cleaning and 8. When the cleaning process is complete, remove the flushing the WLHP piping system is the single most short-circuited hoses. -
Page 29: Unit And System Checkout Procedure
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Unit System and Checkout Procedure ⚠ ⚠ SYSTEM CHECKOUT WARNING! System water temperature: Check water temperature WARNING! Polyolester Oil, commonly known as POE oil, is for proper range and also verify heating and cooling set a synthetic oil used in many refrigeration systems including points for proper operation. -
Page 30: Unit Start-Up Procedure
60°F [16°C] and 95°F [35°C]. f. Check for vibration, noise, and water leaks. 5. Two factors determine the operating limits of Enertech 7. If unit fails to operate, perform troubleshooting analysis heat pumps, (a) return air temperature, and (b) water (see troubleshooting section). -
Page 31: Unit Operating Conditions
• Entering air is based upon 70°F [21°C] DB in heating • Cooling air and water values can vary greatly with and 80/67°F [27/19°C] in cooling; changes in humidity level. Table: 10 ERC Series Typical Operating Pressures and Temperatures ERC09 Full Load Cooling Full Load Heating... - Page 32 WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Unit Operating Conditions, Cont’d. Table: 10 ERC Series Typical Operating Pressures and Temperatures ERC15 Full Load Cooling Full Load Heating...
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Page 33: Start-Up Log Sheet
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Start-Up Log Sheet Installer: Complete unit and system checkout and follow unit start-up procedures in the IOM. Use this form to record unit information, temperatures and pressures during start-up. Keep this form for future reference. Job Name: Street Address: Model Number:... -
Page 34: Preventive Maintenance
ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Preventive Maintenance Water Coil Maintenance - Condensate Drain - In areas where airborne bacteria (Direct ground water applications only) may produce a “slimy”... -
Page 35: Functional Troubleshooting
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Functional Troubleshooting Fault Htg Clg Possible Cause Solution Check line voltage circuit breaker and disconnect. Check for line voltage between L1 and L2 on the contactor. Main power problems Green Status LED Off Check for 24VAC between R and C on CXM2/DXM2.5. - Page 36 ENERTECH ® WATER-SOURCE HEAT PUMPS Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Functional Troubleshooting, Cont’d. Table continued from previous page. Fault Htg Clg Possible Cause Solution Check power supply and 24VAC voltage before and during operation.
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Page 37: Performance Troubleshooting
Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Performance Troubleshooting Symptom Htg Clg Possible Cause Solution Dirty filter Replace or clean. Check for dirty air filter and clean or replace. Reduced or no airflow in heating Check fan motor operation and airflow restrictions. -
Page 38: Functional Troubleshooting Form
Model Number: ________________________ Serial Number: ________________________ ENERTECH ® WATER-SOURCE HEAT PUMPS Date: ________________________ Packaged Unit Refrigeration Schematic Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Customer: _____________________________________ Antifreeze: ________________________ Model#: ________________________ Serial#: ________________ Loop type: _______________... - Page 39 Console (ERC) Series R e v . : J u n e 6 , 2 0 2 3 Notes:...
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Page 40: Revision History
Greenville, IL 62246 Enertech works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed without notice and may not be as described herein. Please contact Enertech Technical Service Department at 1-618-664-5860 for specific information on the current design and specifications.
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