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Installation & Operations Manual
ZS/ZT MODELS HORIZONTAL PACKAGED SYSTEM WATER-TO-AIR HEAT PUMPS
REV
REV
DESCRIPTION
DESCRIPTION
A
A
ADD ZS-ZT INFORMATION
ADD ZS-ZT INFORMATION
REVISION HISTORY
REVISION HISTORY
ECN
ECN
DATE
DATE
15-272
15-272
2/3/16
2/3/16
20D218-12NN
APPROVED
APPROVED
BDL
BDL
REVISION: REV.: A
20D218-12NN
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Table of Contents
Troubleshooting
Related Manuals for Enertech ZS.
Summary of Contents for Enertech ZS.
- Page 1 REVISION HISTORY REVISION HISTORY DESCRIPTION DESCRIPTION DATE DATE APPROVED APPROVED ADD ZS-ZT INFORMATION ADD ZS-ZT INFORMATION 15-272 15-272 2/3/16 2/3/16 Installation & Operations Manual ZS/ZT MODELS HORIZONTAL PACKAGED SYSTEM WATER-TO-AIR HEAT PUMPS REVISION: REV.: A 20D218-12NN 20D218-12NN...
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Page 2: Table Of Contents
INTERACTIVE TABLE OF CONTENTS SECTION 1: MODEL NOMENCLATURE & AHRI PERFORMANCE DATA ZT Model Nomenclature ........................4 ZS Model Nomenclature ........................4 ZT Two Stage, ECM Blower, Braze Plate ....................5 ZS Single Stage, ECM Blower, Braze Plate .................... 5 ZS Single Stage, PSC Blower, Braze Plate ..................... - Page 3 ZT Operating Parameters ........................80 Compressor Troubleshooting ......................81 Refrigeration Troubleshooting ......................82 Superheat/Subcooling Conditions ..................... 82 Troubleshooting Worksheet ......................... 83 Troubleshooting Tips ..........................84 SECTION 13: WARRANTY FORMS Claim Form ............................87 Registration Form ..........................88 IOM, ZS/ZT Models Enertech Global...
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Page 4: Section 1: Model Nomenclature & Ahri Performance Data
SECTION 1: MODEL NOMENCLATURE & AHRI PERFORMANCE DATA ZT Model Nomenclature ZS Model Nomenclature Enertech Global IOM, ZS/ZT Models... -
Page 5: Zt Two Stage, Ecm Blower, Braze Plate
Cooling capacities based on 80.6°F DB, 66.2°F WB entering air temperature. GLHP - Entering water temperatures Full Load: 32°F heating / 77°F cooling. GLHP - Entering water temperatures Part Load: 41°F heating / 68°F cooling. GWHP - Entering water temperatures: 50°F heating / 59°F cooling. IOM, ZS/ZT Models Enertech Global... -
Page 6: Section 2: Installation Introduction
Note: Notify Enertech Global, LLC shipping Pre-Installation department of all damages within 15 days. It Special care should be taken in locating the is the responsibility of the purchaser to file all geothermal unit. -
Page 7: Components
⚠ CAUTION ⚠ pressurizes the refrigerant, which increases the BEFORE DRILLING OR DRIVING ANY SCREWS INTO temperature of the refrigerant. CABINET, CHECK TO BE SURE THE SCREW WILL NOT HIT ANY INTERNAL PARTS OR REFRIGERANT LINES. IOM, ZS/ZT Models Enertech Global... -
Page 8: Section 3: Installation Considerations
For these reasons, only qualified and the utility’s connection. The transformer technicians should install an Enertech Global built connections and sizing should be evaluated by geothermal system. the local electric utility provider. -
Page 9: Unit Placement
50 ⧠ Open both the air handler section and percent from the floor or low sidewall location. compressor section and remove any IOM, ZS/ZT Models Enertech Global... -
Page 10: Typical Ductwork Connection Setup
30° after hanger is fully loaded. Seismic Rebound Steel and Bonded LDS Rubber Washer holds precompression and limits upward seismic motion. Hangers are precompressed to rated load or assigned load as required. Scale indicates deflection. Enertech Global IOM, ZS/ZT Models... -
Page 11: Horizontal Unit Suspension Hanger Locations And Dimensions
1.55 CORNER CORNER 1.01 1.01 WITH WITH DRAIN DRAIN OUTLET OUTLET TOP VIEW 42.02 TOP VIEW 42.02 015-017 006-012 FRONT OF UNIT FRONT OF UNIT 1.01 1.01 1.11 18.78 1.11 17.78 IOM, ZS/ZT Models Enertech Global B:\ENGINEERING\RECORDS\Component Drawings\PDF\20D805-47NN REVA... -
Page 12: Field Selectable Discharge Air Pattern Conversion
(3) screws from be- on the air coil side and can be serviced via fore, (1 near the top, 2 near the bottom). the side door. Side discharge as provided End Discharge as retrofitted Enertech Global IOM, ZS/ZT Models... - Page 13 OUTLET TOP VIEW TOP VIEW 63.02 TOP VIEW 58.02 060-072 54.02 036-048 018-030 1.01 1.01 1.01 FRONT OF UNIT FRONT OF UNIT FRONT OF UNIT 1.09 21.81 1.09 19.56 1.09 19.56 IOM, ZS/ZT Models Enertech Global B:\ENGINEERING\RECORDS\Component Drawings\PDF\20D805-46NN REVA...
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Page 14: Section 4: Unit Data Information
Discharge flanges are field installed and All views are shown with flanges for are shipped inside of the unit. dimensional purposes. Return duct flanges are factory installed. G:\Drafting\Drawings\Released-Production\PDF\20D805-08NN REVB Enertech Global IOM, ZS/ZT Models... - Page 15 All views are shown with flanges for Discharge flanges are field installed and dimensional purposes. are shipped inside of the unit. Return duct flanges are factory installed. G:\Drafting\Drawings\Released-Production\PDF\20D805-02NN REVC IOM, ZS/ZT Models Enertech Global...
- Page 16 33.4 16.6 12.0 11.1 38.4 16.6 12.0 11.1 38.4 16.6 12.0 11.1 Optional Filter Rack MODEL Order Item Number AFR0923A AFR0923A AFR0923A AFR1423A AFR1423A AFR1632A AFR1632A AFR1632A AFR1836A AFR1836A AFR1836A AFR1841A AFR1841A B:\ENGINEERING\RECORDS\Component Drawings\PDF\20D805-03NN REVB Enertech Global IOM, ZS/ZT Models...
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Page 17: Service Access Clearances
This is the source heat exchanger discharge. When back discharge then reversing valve access area. Be sure to this access area requires 2 feet of leave adequate clearance for any future clearance. maintenance if needed. G:\Drafting\Drawings\Released-Production\PDF\20D805-06NN REVA IOM, ZS/ZT Models Enertech Global... -
Page 18: Isometric Views
FIELD CONVERTED BACK DISCHARGE CONFIGURATION FIELD CONVERTED BACK DISCHARGE CONFIGURATION SIDE DISCHARGE CONFIGURATION AIR COIL AIR COIL TOP VIEW COMPRESSOR CONTROL BOX UNIT FRONT UNIT FRONT LEFT HAND RETURN RIGHT HAND RETURN G:\Drafting\Drawings\Released-Production\PDF\20D805-04NN REVA Enertech Global IOM, ZS/ZT Models... -
Page 19: Unit Dimensional Data
CONDENSATE DRAIN FITTING In some high humidity applications you may need to PVC STUB INCLUDED WITH UNIT apply insulative tape around condensate drain fitting. SEE NOTES TO THE RIGHT. IOM, ZS/ZT Models Enertech Global G:\Drafting\Drawings\Released-Production\PDF\20D805-05NN REVB... -
Page 20: Unit Physical Data
30.3 x 15.5 x 1 34.5 x 17.4 x 1 39.4 x 17.4 x 1 Number of Rows Micro-channel Coil Shipped Unit Weight (lbs) * Always check the unit data plate for specific charge volume. B:\ENGINEERING\RECORDS\Component Drawings\PDF\20D805-07NN REVC Enertech Global IOM, ZS/ZT Models... -
Page 21: Ecm Fan Performance/Dip Switch Settings- One And Two-Stage Compressor Units
1480 1810 1390 1540 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 ZS018 through ZS/ZT036 models with external electric heat is 0.8 in. w.c.; for ZS/ZT048 models it is 0.9 in. w.c.; and for ZS/ZT060 and ZS/ZT072 it is 1.1 in. w.c. Exceeding the Max ESP may result in nuisance trips of the electric heat. Thermal limits are rated at 100,000 cycles. *ZS/*ZT 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. Not Used Not an applicable selection. Notes: 1. To enter dehumidification mode, ODD input should be 0 VAC; for normal cooling CFM, ODD input should be 24 VAC. 2. Heating CFM is not affected by dehumidification mode. When in dehumidification mode, cooling CFM is 85% of normal CFM. IOM, ZS/ZT Models Enertech Global... -
Page 22: Psc Fan Performance/Dip Switch Settings- Single-Stage Compressor Units
1630 1640 1645 1645 1645 1645 1640 1625 1600 Notes: 1. PSC Blower motors come with 3 or 4 speed taps. To change the speed of the motor to a higher or lower speed, remove the electric box cover that is mounted on the blower. Locate the label on the motor to identify the wire color for each speed. Remove the wire nut on the existing speed and replace with the wire of selected speed. 2. Max ESP and speed settings for ZS models with external electric heat is shown below. Exceeding the Max ESP may result in nuisance trips of the electric heat. Thermal limits are rated at 100,000 cycles. *ZS Series‐Electric Heat Limitations Speed Max Model Electric Heater High Static AXCH051MB AXCH051MB 024/030 AXCH101MB AXCH051MB AXCH101MB AXCH051MB AXCH101MB AXCH101MB AXCH151MB AXCH101LB 060/072 AXCH151LB Enertech Global IOM, ZS/ZT Models... -
Page 23: Unit Electrical Data, Zt 024 - 072, Ecm Models
HVAC technician. The evaluation should include all connections, sizes of wires, and size of the distribution panel between the unit and the utility’s connection. The transformer connection and sizing should be evaluated by the electric utility provider. IOM, ZS/ZT Models Enertech Global... -
Page 24: Unit Electrical Data, Zs 018 - 042, Ecm Models
SECTION 4: UNIT DATA INFORMATION Unit Electrical Data, ZS 018 - 042, ECM Models Enertech Global IOM, ZS/ZT Models... -
Page 25: Unit Electrical Data, Zs 048 - 072, Ecm Models
SECTION 4: UNIT DATA INFORMATION Unit Electrical Data, ZS 048 - 072, ECM Models IOM, ZS/ZT Models Enertech Global... -
Page 26: Unit Electrical Data, Zs 018 - 042, Psc Models
SECTION 4: UNIT DATA INFORMATION Unit Electrical Data, ZS 018 - 042, PSC Models Enertech Global IOM, ZS/ZT Models... -
Page 27: Unit Electrical Data, Zs 048 - 072, Psc Models
SECTION 4: UNIT DATA INFORMATION Unit Electrical Data, ZS 048 - 072, PSC Models IOM, ZS/ZT Models Enertech Global... -
Page 28: Section 5: Unit Piping Installation
4. Saltwater applications (approx. 25,000 ppm) require secondary heat exchangers due to copper piping between the heat exchanger. 5. Filter for maximum of 600 micron size. Enertech Global IOM, ZS/ZT Models... -
Page 29: Typical Pressurized Flow Center Installation
Center Center Equipment Pad Source Water Out 2” Polyethylene Foam Ports Hose GSHP Source Water In 2” Polyethylene Equipment Pad Note: P/T ports should be angled away from the unit for ease of gauge reading. IOM, ZS/ZT Models Enertech Global... -
Page 30: Wye Strainer Installation (Mandatory)
SECTION 5: UNIT PIPING INSTALLATION Wye Strainer Installation (MANDATORY) Enertech provides a Wye Strainer and 4” brass nipple which must be installed on the Source Side input. Failure to do so may cause fouling of the heat exchanger, shorten unit life expectancy and void the warranty. -
Page 31: Flushing & Charging A Pressurized Flow Center
SECTION 5: UNIT PIPING INSTALLATION Flushing & Charging a Pressurized Flow Center Figure 10: Flush Cart Pump Curve The Enertech Manufacturing flush cart has been designed to effectively and efficiently flush the Meyers QP-15 1-1/2 HP Self-Priming earth loop and to facilitate injecting and mixing Centrifugal Pump of the antifreeze. - Page 32 1. Turn both 3-way “Ts” back to the original pressurization. position for flushing the loop only. 2. Close the return side ball valve on the flush 1. Turn one of the 3-way valves so that it is cart. Enertech Global IOM, ZS/ZT Models...
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Page 33: Condensation Drain Connection
Pan (Optional) Unit Equipment charging and pressuring the system initially. 6 1/2" vertical clearance required Typical operating pressures of an earth loop are 15 to 50 psi. IOM, ZS/ZT Models Enertech Global... -
Page 34: Antifreeze Overview
• All antifreeze suppliers and manufacturers recommend the use of either de-ionized or Stability: Will the brine require periodic change distilled water with their products. out or maintenance? Enertech Global IOM, ZS/ZT Models... -
Page 35: Antifreeze Charging
Antifreeze solutions are shown in pure form - not premixed HTF is a premixed Methanol solution Figure 7: 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 IOM, ZS/ZT Models Enertech Global... -
Page 36: Open Loop Piping
Water Two- Boiler Drain Solenoid Stage for Heat Valve Units Exchanger Maintenance (2 required) *Hose kit used for unit isolation, includes fittings for P/T ports. **See product specifications for flow rates. Enertech Global IOM, ZS/ZT Models... -
Page 37: Hot Water Generator (Hwg) Installation
Shutoff Drain Valves Valve the water heater. ALL ENERTECH HOT WATER GENERATOR (HWG) REFRIGERANT TO WATER HEAT EXCHANGERS ARE DOUBLE WALLED AND VENTED FOR USE IN POTABLE WATER SYSTEMS. IOM, ZS/ZT Models Enertech Global... -
Page 38: Section 6: Controls
SECTION 6: CONTROLS Features a Y1 call is received. This avoids multiple units Enertech Global geothermal heat pump from being energized at the same time after controls leverage a modular approach events such as power loss or brown outs. for controlling heat pump operation. The... -
Page 39: Safety
The Lockout Board Load Heat Exchanger Freeze (LCT) will display the associated fault. When in cooling mode, if the heat exchanger temperature is lower than 30°F for 30 continuous seconds, the compressor operation IOM, ZS/ZT Models Enertech Global... -
Page 40: Control Board Switch Settings And Diagnostics
• Yellow - Condensate Overflow Fault Retry • Green - Status All faults (except O/U Voltage and Bad Following is Lockout Board LED Identification Thermistor Sensors) are retried twice before Table. finally locking the unit out (three faults total). Enertech Global IOM, ZS/ZT Models... -
Page 41: Lockout Board Led Identification
FLASH‐18 PULSES LOCKOUT BOARD DIP SWITCHES DIP SWITCH LCT & SCT MONITORED FOR FLOW‐ 'FS' IS FS' TERMINALS USED FOR FLOW SWITCH‐ LCT & SCT WIRED IN SERIES WITH 'HP' AT HP1 & HP2 IGNORED AFRZ OPEN LOOP MODE‐ 30F SETTING FOR SCT CLOSED LOOP MODE‐ 15F SETTING FOR SCT OPERATES IN NORMAL MODE WITH OPERATES IN TEST MODE WITH DELAYS SPED UP TEST STANDARD DELAYS O/ U FEATURE IS INACTIVE FEATURE IS ACTIVE NOTES: 1. WHEN TEST MODE DIP SWITCH IS 'ON', GREEN STATUS LED WILL BE OFF. 2. THE SOURCE COIL FREEZE/ WATER FLOW FAULT COULD EITHER BE THE SENSOR LOCATED BETWEEN THE TXV AND SOURCE COAX, OR AN EXTERNAL FLOW SWITCH. 3. THE LOAD/ AIR COIL FREEZE PROTECTION SENSOR IS LOCATED BETWEEN THE TXV AND LOAD COAX IN WATER‐TO‐WATER UNITS, AND BETWEEN THE TXV AND AIR COIL IN WATER‐TO‐AIR UNITS. 4. NOT ALL MODELS HAVE THIS FEATURE. 5. THIS FAULT INDICATES A BAD SENSOR (OPEN, SHORTED, OR DISCONNECTED). 6. THE CHECK TO DETERMINE IF THE LCT AND SCT SENSORS ARE SWAPPED, OCCURS IN TEST MODE ONLY, 60 SECONDS AFTER THE 'CC' TERMINAL IS ENERGIZED. 7. THIS FAULT/ LOCKOUT INDICATES THAT THE DISHCARGE GAS TEMPERATURE IS ABOVE 220°F. 8. UNITS WITHOUT DESUPERHEATER (HWG), DO NOT HAVE A DLWT SENSOR, SO IT IS IGNORED BY THE LOCKOUT BOARD. 9. CONNECT A MULTIMETER ACROSS THE 'L' AND 'C' TERMINALS TO CHECK FOR 24 VAC LOCKOUT SIGNAL. THERMOSTAT TURNS ON/FLASHES 'CALL FOR SERVICE' INDICATION. 10. THE 'L' TERMINAL CONTROLS A FAULT LED AT THE THERMOSTAT OR DRIVES AN AUXILLIARY FAULT RELAY. 11. THE HIGH PRESSURE AND FLOW SWITCHES ARE WIRED IN SERIES AT THE 'HP1' AND 'HP2' TERMINALS. CHECK BOTH SWITCHES TO DETERMINE EXACT FAULT. IOM, ZS/ZT Models Enertech Global REV B. 08/30/16... - Page 42 Load/Source Temperature Sensing (FSW) Enertech technical services. An over/under When the DIP switch FSW is OFF, the board voltage condition could cause premature operates in Load and S ource Heat Exchanger...
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Page 43: Sequence Of Operation
Cooling 1st stage (Y1, 0, G) ZS and ZT models ECM fan immediately ramps up to 75% of 1st stage airflow (CFM) level (based on DIP switch settings), the Accessory (A) terminal output is IOM, ZS/ZT Models Enertech Global... -
Page 44: Section 7: Electrical Connections
Route and trim wiring to leave enough slack to open, close or remove control box Route and trim wiring to leave enough slack to open, close or remove control box All drawings are for reference only, models and revisions may change components and/or locations Enertech Global IOM, ZS/ZT Models... -
Page 45: Section 8: Soft Start Controls
SECTION 8: 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 46: 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, ZS/ZT Models... - Page 47 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, ZS/ZT Models Enertech Global Specifications are subject to change without notice (03.09.2014)
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Page 48: 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, ZS/ZT Models... -
Page 49: 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, ZS/ZT Models Enertech Global Specifications are subject to change without notice (03.09.2014) -
Page 50: 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, ZS/ZT Models... -
Page 51: Section 9A: Wiring Diagrams (Ecm Fans Only)
SECTION 9A: WIRING DIAGRAMS (ECM FANS ONLY) 208/230V, Single Phase, 60Hz, Single or Two Stage, ECM, Residential IOM, ZS/ZT Models Enertech Global... -
Page 52: 208/230V, Single Phase, 60Hz, Single Or Two Stage, Ecm, Dsh, Residential
SECTION 9: WIRING DIAGRAMS 208/230V, Single Phase, 60Hz, Single or Two Stage, ECM, DSH, Residential Enertech Global IOM, ZS/ZT Models... -
Page 53: 208/230V, Single Phase, 60Hz, Single Or Two Stage, Ecm, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Single Phase, 60Hz, Single or Two Stage, ECM, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 54: 208/230V, Three Phase, 60Hz, Single Or Two Stage, Ecm, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Three Phase, 60Hz, Single or Two Stage, ECM, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 55: 208/230V, Three Phase, 60Hz, Single Or Two Stage, Ecm, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Three Phase, 60Hz, Single or Two Stage, ECM, DSH, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 56: 460V Three Phase, 60Hz, Single Or Two Stage, Ecm, Commercial
SECTION 9: WIRING DIAGRAMS 460V Three Phase, 60Hz, Single or Two Stage, ECM, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 57: 460V Three Phase, 60Hz, Single Or Two Stage, Ecm, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 460V Three Phase, 60Hz, Single or Two Stage, ECM, DSH, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 58: 265V, Single Phase, 60Hz, Single Or Two Stage, Ecm, Commercial
SECTION 9: WIRING DIAGRAMS 265V, Single Phase, 60Hz, Single or Two Stage, ECM, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 59: 265V, Single Phase, 60Hz, Single Or Two Stage, Ecm, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 265V, Single Phase, 60Hz, Single or Two Stage, ECM, DSH, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 60: Section 9B: Wiring Diagrams (Psc Fan Only)
SECTION 9B: WIRING DIAGRAMS (PSC FAN ONLY) 208/230V, Single Phase, 60Hz, Single-Stage, PSC, DSH, Residential/Commercial Enertech Global IOM, ZS/ZT Models... -
Page 61: 208/230V, Single Phase, 60Hz, Single-Stage, Psc, Residential
SECTION 9: WIRING DIAGRAMS 208/230V, Single Phase, 60Hz, Single-Stage, PSC, Residential IOM, ZS/ZT Models Enertech Global... -
Page 62: 208/230V, Single Phase, 60Hz, Single-Stage, Psc, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Single Phase, 60Hz, Single-Stage, PSC, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 63: 208/230V, Three Phase, 60Hz, Single-Stage, Psc, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Three Phase, 60Hz, Single-Stage, PSC, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 64: 208/230V, Three Phase, 60Hz, Single-Stage, Psc, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 208/230V, Three Phase, 60Hz, Single-Stage, PSC, DSH, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 65: 460 Or 575V, Three Phase, 60Hz, Single-Stage, Psc, Commercial
SECTION 9: WIRING DIAGRAMS 460 or 575V, Three Phase, 60Hz, Single-Stage, PSC, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 66: 460 Or 575V, Three Phase, 60Hz, Single-Stage, Psc, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 460 or 575V, Three Phase, 60Hz, Single-Stage, PSC, DSH, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 67: 265V, Single Phase, 60Hz, Single-Stage, Psc, Commercial
SECTION 9: WIRING DIAGRAMS 265V, Single Phase, 60Hz, Single-Stage, PSC, Commercial IOM, ZS/ZT Models Enertech Global... -
Page 68: 265V, Single Phase, 60Hz, Single-Stage, Psc, Dsh, Commercial
SECTION 9: WIRING DIAGRAMS 265V, Single Phase, 60Hz, Single-Stage, PSC, DSH, Commercial Enertech Global IOM, ZS/ZT Models... -
Page 69: Section 10: Accessories
APSMA Pump Sharing Module The AXCH, Revision ‘B’ electric heaters are The pump sharing module, part number designed specifically for the Enertech ZS/ZT APSMA, is designed to allow two units to share Series Geothermal Heat Pump units. Good one flow center. With the APSMA module, performance depends on proper application either unit can energize the pump(s). -
Page 70: Section 11: 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, ZS/ZT Models... -
Page 71: Glossary Of Terms
Determine minimum EWT based upon your geographical area. LWT = 40 - 10.2 = 29.8°F Go to the performance data table for the heat pump model selected and Water flow rate must be increased to avoid freezing. IOM, ZS/ZT Models Enertech Global... -
Page 72: 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:________________________ Enertech Global IOM, ZS/ZT Models... -
Page 73: Zs - Psc Heat Of Extraction/Heat Of Rejection Tables
7. Interpolation of unit performance data is permissible; extrapolation is not. 8. Performance data is a result of lab testing and is not related to warranty. 9. Due to variations in installation, actual unit performance may vary from the tabulated data. IOM, ZS/ZT Models Enertech Global... -
Page 74: Zs - Ecm Heat Of Extraction/Heat Of Rejection Tables
7. Interpolation of unit performance data is permissible; extrapolation is not. 8. Performance data is a result of lab testing and is not related to warranty. 9. Due to variations in installation, actual unit performance may vary from the tabulated data. Enertech Global IOM, ZS/ZT Models... -
Page 75: Zt Heat Of Extraction/Heat Of Rejection Tables
7. Interpolation of unit performance data is permissible; extrapolation is not. 8. Performance data is a result of lab testing and is not related to warranty. 9. Due to variations in installation, actual unit performance may vary from the tabulated data. IOM, ZS/ZT Models Enertech Global... -
Page 76: Zs Pressure Drop Tables W/Bphe
4. Interpolation of unit pressure drop data is permissible; extrapolation is not. 5. Pressure drop data is a result of lab testing and is not related to warranty. 6. Due to variations in installation, actual unit performance may vary from the tabulated data. Enertech Global IOM, ZS/ZT Models... -
Page 77: Zt Pressure Drop Tables W/Bphe
4. Interpolation of unit pressure drop data is permissible; extrapolation is not. 5. Pressure drop data is a result of lab testing and is not related to warranty. 6. Due to variations in installation, actual unit performance may vary from the tabulated data. IOM, ZS/ZT Models Enertech Global... -
Page 78: Section 12: Troubleshooting
Loop Flushing Installation or Troubleshooting Tip Videos QR Codes Repairing a Microchannel Air Coil ECM Temporary Replacement Testing a Coaxial Heat Exchanger ECM Motor Troubleshooting Troubleshooting a TXV Troubleshooting a TXV Installing a YT Vertical Unit Enertech Global IOM, ZS/ZT Models... -
Page 79: Zs Operating Parameters
4-19 8-13 14-25 420-486 125-166 10-22 5-20 9-17 13-24 406-462 125-165 7-18 5-20 8-12 13-24 Heating data based on 70°F EAT. Cooling data based on 80/67°F EAT. CFM is 350-450 CFM/Ton for heating and cooling. IOM, ZS/ZT Models Enertech Global... -
Page 80: Zt Operating Parameters
138-153 7-18 7-16 15-24 391-435 144-159 7-17 7-16 6-10 14-23 391-441 144-159 7-19 7-16 14-23 Heating data based on 70°F EAT. Cooling data based on 80/67°F EAT. CFM is 350-500 CFM/Ton for heating and cooling. Enertech Global IOM, ZS/ZT Models... -
Page 81: 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 . IOM, ZS/ZT Models Enertech Global... -
Page 82: 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 Enertech Global IOM, ZS/ZT Models... -
Page 83: 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 IOM, ZS/ZT Models Enertech Global... -
Page 84: 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). Enertech Global IOM, ZS/ZT Models... - Page 85 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 IOM, ZS/ZT Models Enertech Global...
- Page 86 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. Enertech Global IOM, ZS/ZT Models...
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Page 87: Section 13: 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 88: Registration Form
PURCHASER USER ________________________________________________ PHONE ____________________ ADDRESS __________________________________ CITY _________________STATE/PROV ________________ POSTAL CODE _____________ EMAIL OPTIONAL _________________________________________________ WE HAVE SUPERVISED THE INSTALLATION AND START UP IN ACCORDANCE WITH ENERTECH MANUFACTURING, LLC. INSTALLATION INSTRUCTIONS. THIS UNIT IS PERFORMING SATISFACTORILY NOT SATISFACTORILY, IF NOT EXPLAIN ________________... - Page 89 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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