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Return and Supply Air Duct System
Installation & Operations Manual
Return Air
YT MODELS PACKAGED WATER-TO-AIR MULTI-POSITIONAL HEAT PUMPS
Flex Connector
Scan or Click
Here for YouTube
InstallationVideo
Maintain supply
Supply Air
ange duct size
for 12" minimum
vertical height
Flex Connector
Equipment Pad
2" Polyethylene Foam
REVISION:B
20D218-01NN
20D218-01NN
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Summary of Contents for Enertech YT024
- Page 1 Return and Supply Air Duct System Installation & Operations Manual Maintain supply Return Air Supply Air ange duct size YT MODELS PACKAGED WATER-TO-AIR MULTI-POSITIONAL HEAT PUMPS for 12” minimum Flex Connector vertical height Flex Connector Equipment Pad 2” Polyethylene Foam REVISION:B Scan or Click Here for YouTube...
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Page 2: Table Of Contents
Table of Contents SECTION 1: MODEL NOMENCLATURE & AHRI PERFORMANCE DATA Nomenclature Decoder ........................4 AHRI Performance Data ........................4 SECTION 2: INSTALLATION INTRODUCTION Introduction ............................5 Un-packaging ............................5 Pre-Installation ............................6 Components ............................6 SECTION 3: INSTALLATION CONSIDERATIONS Consumer Instructions ......................... - Page 3 SECTION 11: CONTROLS Microprocessor Features and Operations ..................45 Safety Controls ............................ 46 Temperature Sensor Operating Range .................... 47 Fault Retry ............................47 LED Identification ..........................48 Diagnostics: ............................49 Sequence of Operation: ........................49 Factory Installed Soft Start Option ..................... 50 SECTION 12: SOFT START CONTROLS Soft Start Module ..........................
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Page 4: Section 1: Model Nomenclature & Ahri Performance Data
SECTION 1: MODEL NOMENCLATURE & AHRI PERFORMANCE DATA Nomenclature Decoder AHRI Performance Data GROUND LOOP HEAT PUMP Full Load Cooling Full Load Heating Part Load Cooling Part Load Heating MODEL Btu/hr Btu/hr Btu/hr Btu/hr YT024 27,100 19.9 19,000 21,400 28.2 15,200 YT036 41,200 20.9 29,100 31,500 31.3... -
Page 5: Section 2: Installation Introduction
BEFORE DRILLING OR DRIVING ANY SCREWS Un-packaging INTO CABINET, CHECK TO BE SURE THE Enertech units are mounted to wooden SCREW WILL NOT HIT ANY INTERNAL PARTS OR pallets for easy handling during shipment and REFRIGERANT LINES. -
Page 6: Pre-Installation
Desuperheater package. or a high density, closed cell polyethylene pad slightly larger than the base of the unit. Logic Board: Logic Board operates the Flex connectors should also be installed in Enertech Global IOM, YT Models... -
Page 7: Section 3: Installation Considerations
Because of the importance of proper installation, when safety switches are engaged. It also Enertech Global does not sell equipment direct provides fault indicator(s). to homeowners. Internet websites and HVAC outlets may allow for purchases directly by... -
Page 8: Unit Placement
Unit Air Pad. All vertical geothermal heating and cooling equipment should be placed on either a formed plastic air pad, or a high density, closed cell polyethylene pad. This helps eliminate vibration noise that could be transmitted through the floor. Enertech Global IOM, YT Models... -
Page 9: Typical Supply And Return Ductwork Connections
Table 1: Maximum Air Velocities Location Supply Return Main Ducts 900 FPM 600 FPM Branch Ducts 700 FPM 600 FPM Grills, Registers, Diffusers 750 FPM 600 FPM IOM, YT Models Enertech Global... -
Page 10: Section 4: Unit Data Information
REVISION HISTORY SECTION 4: UNIT DATA INFORMATION DESCRIPTION DATE APPROVED ADD YT024 INFORMATION 15-181-N13 6/22/15 Dimensional Data and Installation Clearances 1.00 Enertech Recommends a Minimum of TOP VIEW 2 to 2.5 Feet of Service/Installation Access at Front and Air Coil Side... -
Page 11: Side And Back Discharge Dimensional Data
SIDE DISCHARGE BACK DISCHARGE 4.70 16.0 16.0 7.25 TYP. TYP. 6.56 6.56 16.0 16.0 Note: Side and Back Discharge configurations are only available in 036 through 072 models. SIDE DISCHARGE BACK DISCHARGE G:\Drafting\Drawings\Released-Production\PDF\20D800-14NN REVA IOM, YT Models Enertech Global... -
Page 12: Ecm Fan Performance - Two-Stage Compressor Units
2180 OFF OFF OFF OFF OFF OFF OFF OFF 1500 1750 1450 1770 TOO LOW 1960 OFF OFF OFF ON OFF OFF OFF OFF Notes: 1. Program B (Bold Type) is factory settings and rated CFM. CFM is controlled within 5% up to the Max ESP. 2. Max ESP includes allowance for wet coil and NO FILTER 3. Power must be off to the unit for at least 3 seconds before the ECM motor will recognize a program change. 4. Max ESP for *YT024 models with internal electric heat is 0.5"; for *YT036 and *YT048 it is 0.6"; for *YT060 and *YT072 it is 0.7". Exceeding the Max ESP may result in nuisance trips of the electric heat. Thermal limits are rated at 100,000 cycles. 5. *YT060 models with 10kW internal electric heat cannot be set on the 'D' program. *YT Series Dehumidification Mode Options DIP Switch Mode Operation Normal Dehumidification mode disabled (Normal Htg/Clg CFM)‐‐ Factory setting. On Demand Dehumidification mode (humidistat input at terminal ODD)‐‐ Humidistat required. Constant Dehumidification mode (always uses dehum CFM for cooling and normal CFM for Constant Dehum heating)‐‐No humidistat required. ... - Page 13 Max ESP, CFM and Return Area 3. Determine Filter pressure drop (ΔPs) using the equation above 4. Measure (or calculate) the ESP without filter in place 5. Calculate Total ESP = Measured ESP + Filter Pressure Drop IOM, YT Models Enertech Global...
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Page 14: Unit Electrial Data
Option AMPS HACR Volts Phase 208/230 58.3 11.7 16.9 19.8 208/230 58.3 11.7 17.4 20.3 208/230 58.3 11.7 20.9 23.8 YT024 208/230 58.3 11.7 21.4 24.3 208/230 55.4 11.7 13.3 208/230 55.4 12.2 13.8 30/35 28.0 208/230 83.0 15.3 20.5 24.3... -
Page 15: Section 5: General Unit Assembly
This unit is a field selectable return air unit. The unit will come already set up for a left hand return. The source and hot water generator connections are on the air coil side of the unit, IOM, YT Models Enertech Global... -
Page 16: Control Box Installation
3. Remove the outer doors from the unit. Units are shipped with the control box in the unit air handler section. 5. Remove bracket from the control box and discard. Enertech Global IOM, YT Models... - Page 17 Make sure to keep the (4) screws for future use. 7. Remove the blower motor/blower wheel bracket and the blower housing bracket at this time. Remove both brackets with (2) screws from each bracket. Once removed discard. IOM, YT Models Enertech Global...
- Page 18 13. Remove the control front from the control box asm. by removing two screws (1 on each side). Be sure to keep these two screws as they will be used when the control front is assembled back onto the control box asm. Enertech Global IOM, YT Models...
- Page 19 Then assemble the control box asm. to the top of the unit using the previous steps shown above. Start by removing the front plate behind the center insert panel. IOM, YT Models Enertech Global...
- Page 20 The door with the logo will be the top front door and the bottom door without a handle will be the bottom front door. You have how completed the control box installation. Enertech Global IOM, YT Models...
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Page 21: Return Duct Flange Kit Installation
8. Open the bag and attach the clear vinyl Maintenance and filter change instructions are tube to the barb adapter, apply plastic included in the owners manual shipped with squeeze clamp over the tubing/barb every unit. adapter, tightening the clamp with pliers. IOM, YT Models Enertech Global... - Page 22 4. Take a flat blade screwdriver, and pop the module (with the wiring connected) out of the plastic clip that is mounted to the sheet metal bracketshown in the picture below. Enertech Global IOM, YT Models...
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Page 23: Section 7: Unit Piping Installation
Secondary heat exchangers are required for applications not meeting the requirements shown above. 4. Saltwater applications (approx. 25,000 ppm) require secondary heat exchangers due to copper piping between the heat exchanger and the unit fittings. 5. Filter for maximum of 600 micron size. IOM, YT Models Enertech Global... -
Page 24: Interior Piping
The valves will turn in either direction, 360 degrees. Make sure during this process that the valves are in the same position so that air does not become trapped in the system. Front of Unit Enertech Global IOM, YT Models... - Page 25 Figure 7: Typical Single Unit Piping Connection (Non-Pressurized Flow Center) LEFT VIEW From Loop Loop Field Field Flush coil Valve Hose P/T Ports Source Out P/T Ports Source In Non-Pressurized Equipment Pad Flow Center 2” Polyethylene Foam IOM, YT Models Enertech Global...
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Page 26: Pressurized Flow Center And Pump Mounting
Enertech Global IOM, YT Models... - Page 27 SECTION 7: UNIT PIPING INSTALLATION FLUSH CART DESIGN: Meyers QP-15 The Enertech Manufacturing flush cart has been 1-1/2 HP Self-Priming Centrifugal Pump designed to effectively and efficiently flush the earth loop and to facilitate injecting and mixing 25’ of the antifreeze. The single most important element in flow center reliability is the ability to 20’...
- Page 28 Turn the other valve so it is only open line and run it to a drain. Open the ball to the loop and flush port (pressure is also valve on discharge line on flush cart. Enertech Global IOM, YT Models...
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Page 29: Typical Non-Pressurized Flow Center Installation
Typical operating pressures of an earth loop are procedure (hand tighten only -- do not use a 15 to 50 psi. wrench). Note - Burping pump(s): On flow center initial IOM, YT Models Enertech Global... -
Page 30: Antifreeze Overview
Corrosiveness: The brine must be compatible which causes leaks through most mechanical with the system materials. fittings. This brine is not recommended for use in earth loop applications. Stability: Will the brine require periodic change out or maintenance? Enertech Global IOM, YT Models... -
Page 31: Antifreeze Charging
GTF is a premixed Methanol solution Notes: Consult with your representative or distributor if you have any questions regarding antifreeze selection or use. All antifreeze suppliers and manufacturers recommend the use of either de-ionized or distilled water with their products. IOM, YT Models Enertech Global... - Page 32 SECTION 7: UNIT PIPING INSTALLATION Figure 9: Antifreeze Specific Gravity 1.0500 1.0400 1.0300 1.0200 1.0100 1.0000 0.9900 0.9800 0.9700 0.9600 Freeze Protection (deg F) Procool Methanol Propylene Glycol Enertech Global IOM, YT Models...
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Page 33: Apsma Pump Sharing Module
Flow P/T Ports P/T Ports P/T Ports Source Out Source Out Source Out P/T Ports P/T Ports P/T Ports Source In Source In Source In Equipment Pad Equipment Pad 2” Polyethylene Foam 2” Polyethylene Foam IOM, YT Models Enertech Global... -
Page 34: Open Loop Piping And Connections
3 ton and Equipment Pad (2 required) smaller. Use single solenoid 2” Polyethylene Foam and flow regulator. *Hose kit is used for piping isolation, and includes ttings for P/T ports. **See product specifications for flow rates. Enertech Global IOM, YT Models... - Page 35 SECTION 7: UNIT PIPING INSTALLATION OPEN LOOP SINGLE STAGE SOLENOID CONNECTIONS OPEN LOOP TWO-STAGE SOLENOID CONNECTIONS IOM, YT Models Enertech Global...
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Page 36: Section 8: Desuperheater Installation
11. Thread the remaining two ½”SWT x ¾”MPT copper adaptors into the ¾” FPT fittings on the heat pump, marked HWG IN and HWG ALL Enertech Global products meet the OUT. requirements of NSF-372 (Lead Free). 12. Run interconnecting ½” copper pipe from... - Page 37 Bottom of Water Heater NOTE: Drawing shown vertically for detail. Fitting installs horizontally into hot water tank. Connection to Hot Water Tank Copper Tee For Domestic Cold Water In Line Drain Brass Tee Adapter to Unit Water Line IOM, YT Models Enertech Global...
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Page 38: Desuperheater Installation With Single Water Heater
Water Heater No. 1 (or Storage Tank) (or Storage Tank) 3/4” Copper Adapter Fitting HWG In HWG Out Shutoff Drain Drain Valves Valve Equipment Pad Valve 2” Polyethylene Foam Representative drawing only, some models may vary in appearance. Enertech Global IOM, YT Models... -
Page 39: Section 9: Auxiliary Heater Installation
SHEET METAL PARTS MAY HAVE SHARP death or serious injury. EDGES OR BURRS. USE CARE AND WEAR PROTECTIVE CLOTHING AND GLOVES “Note:” Used to highlight suggestions which will WHEN HANDLING PARTS. result in enhanced installation, reliability, or operation. IOM, YT Models Enertech Global... - Page 40 •(QTY: 1) Electric Heat Module Assembly •(QTY: 1) Filler plate (Only in AHTR101D) Note: Notify the Enertech Global, LLC shipping •(QTY: 4) #10-16 x ½ Mounting Screws department of all damages within 15 days. It...
- Page 41 DOWN when the heater is installed. This is an NEC requirement. Do one breaker at a time to make sure the wires are reconnected properly. Loosen terminal screws, and gently pull wires back FIGURE 2 IOM, YT Models Enertech Global...
- Page 42 Instructions for airflow set-up information. Temperature Rise Check 7. To determine temperature rise, measure the temperature difference between the supply and return air temperatures. Note: The maximum outlet air temperature for all models is 200°F (93.3°C) FIGURE 6 Enertech Global IOM, YT Models...
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Page 43: Heater Electrical Data
45.1 AHTR201D L3/L4 7.50 41.7 36.1 52.1 45.1 Note: Supply voltage, amperage, fuse, and disconnect switch sizes MUST conform to all technical specifications in this manual and on the unit rating plate. 5/19/2015 \\Enertechgvfile\Engineering\Engineering Documents\Eng Change Forms\2015\15‐142\15‐142‐N02\IOM Info\Electrical Data‐ AXCH.xlsm 1:37 PM IOM, YT Models Enertech Global... -
Page 44: Section: 10 Electrical Connections
Wiring shall be routed to avoid contact with other connections and temperature sensitive components. Assure all connections are seceurely fastened and routed to their proper locations. Install the thermostat per the manufacturer’s instructions provided with that unit. Enertech Global IOM, YT Models... -
Page 45: Section 11: Controls
SECTION 11: CONTROLS Microprocessor Features and Operations Test Mode Enertech Global geothermal heat pump The microprocessor control allows the controls provide a unique modular approach technician to shorten timing delays for faster for controlling heat pump operation. The diagnostics by removing the TEST jumper control system uses one, two, or three printed located on the lockout board. -
Page 46: Safety Controls
30 is energized on the “L” terminal for remote continuous seconds, the compressor operation indication of a fault at the thermostat. will be interrupted, and the control will go into Enertech Global IOM, YT Models... -
Page 47: Temperature Sensor Operating Range
(T2) is higher than (197V) recommended by the compressor 220°F, the HWG pump will be de-energized. manufacturer. Under voltage (<18VAC) causes All of the issues above will break the circuit the compressor to disengage and restart when IOM, YT Models Enertech Global... -
Page 48: Led Identification
6. Check for T1 & T4 being swapped (only shown in TEST mode). 7. Hot Gas Line temperature is too high (>220F). 8. Units without HWG do not use sensors T2 and T3. The control will disable faults 15 and 16. Enertech Global IOM, YT Models... -
Page 49: Diagnostics
Heating 3rd Stage, (Y1, Y2, W1, G) Two-Stage to normal mode after one (1) hour, green status Units light blinking. When provided, the ECM fan remains at 100% of 2nd stage airflow (CFM) level (based on DIP IOM, YT Models Enertech Global... -
Page 50: Factory Installed Soft Start Option
85% of the current stage airflow (CFM) level (based on DIP switch settings). The dehumidification mode lowers the airflow (CFM) through the evaporator coil, to improve latent (dehumidification) capacity. In ODD mode, a humidistat or a Enertech Global IOM, YT Models... -
Page 51: Section 12: Soft Start Controls
SECTION 12: SOFT START CONTROLS Soft Start Module Enertech offers a factory installed single-phase The Soft Start Module complies with Class B Soft Start Module that reduces compressor (residential) limits for conducted and radiated starting currents and hence limits the peak emissions which ensures that neighbouring energy demand. -
Page 52: Mode Of Operation
Mains Operational Voltage Green LED Green LED Control Voltage Control Voltage Controller Output Controller Output 1 sec Alarm indication, Red LED Alarm indication, Red LED 0.5 sec 0.5 sec Specifications are subject to change without notice (03.09.2014) Enertech Global IOM, YT Models... - Page 53 RSBS will only wait for the respective delays between starts and/or stop to start to elapse before attempting another start ( assuming K1 is closed.) IOM, YT Models Enertech Global Specifications are subject to change without notice (03.09.2014)
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Page 54: Mode Of Operation (Voltage Interuptions)
3. Voltage dips/interruptions occurring during recovery between starts and/or alarm recovery shall be ignored. 4. Voltage dips/interruptions are not monitored during ramping and idle (control OFF) states. Specifications are subject to change without notice (03.09.2014) Enertech Global IOM, YT Models... -
Page 55: Mode Of Operation (Voltage Dips)
2 Orange LED will be ON if the time between starts and/or time from stop to start has not elapsed. Following the recovery between starts and/or from stop to start, if control voltage is present, the RSBS shall try to restart the compressor. IOM, YT Models Enertech Global Specifications are subject to change without notice (03.09.2014) -
Page 56: Led Status Indication
Note: During recovery from an alarm condition, the red LED will flash at twice the normal flashing frequency between successive flashing cycles as shown above to indicate that the softstarter is in recovery mode which recovery lasts for 5 minutes Enertech Global IOM, YT Models... -
Page 57: Section 13: Wiring Diagrams
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, 208/230V 60Hz, Single Phase Residential IOM, YT Models Enertech Global... -
Page 58: Two Stage, Ecm, Dsh, 208/230V, 60Hz, Single Phase Residential/Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, DSH, 208/230V, 60Hz, Single Phase Residential/ Commercial Enertech Global IOM, YT Models... -
Page 59: Two Stage, Ecm, 208/230V,60Hz, Single Phase Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, 208/230V,60Hz, Single Phase Commercial IOM, YT Models Enertech Global... -
Page 60: Two Stage, Ecm, 208/230V, 60Hz, Three Phase Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, 208/230V, 60Hz, Three Phase Commercial Enertech Global IOM, YT Models... -
Page 61: Two Stage, Ecm, Dsh, 208/230V, 60Hz, Three Phase Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, DSH, 208/230V, 60Hz, Three Phase Commercial IOM, YT Models Enertech Global... -
Page 62: Two Stage, Ecm, 460V, 60Hz, Three Phase Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, 460V, 60Hz, Three Phase Commercial Enertech Global IOM, YT Models... -
Page 63: Two Stage, Ecm, Dsh, 460V, 60Hz, Three Phase Commercial
SECTION 13: WIRING DIAGRAMS Two Stage, ECM, DSH, 460V, 60Hz, Three Phase Commercial IOM, YT Models Enertech Global... -
Page 64: Section 14: Equipment Start-Up Procedures
9. Check auxiliary heat operation by adjusting the thermostat set point 5°F above the room temperature in “Heat” mode or set thermostat to “Emergency." Record voltage, amperage, and air temperature difference. 10. Connect HWG wires or turn switch (if equipped) to on position. Enertech Global IOM, YT Models... -
Page 65: Equipment Start-Up Form
Auxiliary Heat Electrical Data Heating Line Voltage Total Amperage (Full kW - All Stages) Wire Size Breaker Size CFM = (Watts X 3.413) ÷ (Air Temp. Difference X 1.08) Watts = Volts X Auxiliary Heater Amps Installer/Technician:____________________________________________ Date:________________________ IOM, YT Models Enertech Global... -
Page 66: Heat Of Extraction/Heat Of Rejection Tables
24.5 23.0 Part Load 750/740 13.5 18.4 23.9 26.7 25.5 24.2 22.5 10.1 14.1 19.1 24.8 26.7 25.4 24.1 22.2 YT024 13.3 17.7 23.9 29.9 36.0 34.5 33.1 31.4 Full Load 990/1000 13.9 18.6 25.0 31.3 35.9 34.4 32.8 31.0 14.4... -
Page 67: Pressure Drop Tables
Source Brine Pressure Drop (PSI) Record information on the Unit Start-up Form Model Equipment should be in full load operation for YT024 a minimum of 10 minutes in either mode – WITH Part Load THE HOT WATER GENERATOR TURNED OFF. -
Page 68: Section 15: Troubleshooting
Heat Of Extraction and Rejection ECM Temporary Motor Replacement Measuring Subcooling and Superheat ECM Motor Troubleshooting Troubleshooting a TXV Compressor Troubleshooting Variable Speed Flow Centers Return Conversion for and XT or CT Enertech Global IOM, YT Models... -
Page 69: Operating Parameters
5-21 9-14 16-25 482-543 139-166 17-33 3-20 19-26 15-22 418-465 137-165 6-20 5-21 9-13 15-23 Heating data based on 70°F EAT. Cooling data based on 80/67°F EAT. CFM is 320-500 CFM/Ton for heating and cooling. IOM, YT Models Enertech Global... -
Page 70: Compressor Troubleshooting
't p u m p o f th e re v e rs in g re p la c e c o m p re s s o r. v a lv e . Enertech Global IOM, YT Models... -
Page 71: Refrigeration Troubleshooting
High/Normal Low/Normal Inadequate Compression Cool High High/Normal Low/Normal Superheat/Subcooling Conditions Superheat Subcooling Condition Normal Normal Normal operation Normal High Overcharged High Undercharged High High Restriction or TXV is stuck almost closed TXV is stuck open IOM, YT Models Enertech Global... -
Page 72: Troubleshooting Worksheet
Discharge Line (saturation) °F °F °F Optional desuperheater Supply Air Return Air installed in discharge line Source (loop) IN (always disconnect during troubleshooting) Heating Cooling Mode Mode Source Coax Discharge Discharge °F Source (loop) OUT Enertech Global IOM, YT Models... -
Page 73: Troubleshooting Tips
Thermostat is getting a draft of cold or warm air. Make sure that the wall or hole used to run thermostat Thermostat wire from the ceiling or basement is sealed, so no draft can come to the thermostat. Faulty Thermostat (Replace). IOM, YT Models Enertech Global... - Page 74 CFM. Water sucking out of the Install an EZ-Trap or P-Trap on the drain outlet so blower cannot suck air back through the drain outlet. drain pan Enertech Global IOM, YT Models...
- Page 75 NEUTRAL WIRE. THE MOTORS ARE WIRED BETWEEN THE NEUTRAL AND ONE HOT LEG OF THE CIRCUIT. SOURCE WIRING MUST BE WYE (STAR) CONFIGURATION. 3-PHASE DELTA CONNECTIONS WILL NOT PROVIDE THE CORRECT WIRING AND WILL CAUSE THE UNIT NOT TO OPERATE. IOM, YT Models Enertech Global...
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Page 76: Section 16: Warranty Forms
3) Outsourced warranty replacement parts will be reimbursed in the form of credit for the part only. Credit will be no more than the standard equivalent part cost through Enertech. 4) Factory pre-approval is required for anything outside the scope... -
Page 77: Registration Form
How would you rate your overall satisfaction with your installing geothermal contractor? 1 (Very Dissatis ed) 10 (Very Satis ed) MAIL THIS FORM TO: EMAIL THIS FORM TO: FAX THIS FORM TO: ENERTECH GLOBAL LLC WARRANTY ENERTECHGEO.COM ENERTECH GLOBAL LLC 2506 SOUTH ELM STREET 618.664.4597 GREENVILLE, IL 62246 REGISTER ONLINE AT: warranty-registration.enertechgeo.com... - Page 78 Customer Service department at info@enertechgeo.com. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties, but are merely Enertech Global’s opinion or commendation of its products.
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