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Installation & Operations Manual

ZS/ZT MODELS HORIZONTAL PACKAGED SYSTEM WATER-TO-AIR HEAT PUMPS

REVISION: REV.: A

20D218-12NN

20D218-12NN











REVISION HISTORY

REV

DESCRIPTION

ECN

DATE

APPROVED

ADD ZS-ZT INFORMATION 15-272

2/3/16

BDL

FRONT VIEW

LEFT VIEW

Enertech Recommends a Minimum of

2 to 2.5 Feet of Service/Installation

Access at Front and Air Coil Side

TOP VIEW

Showing Optional Filter Rack

G:\Drafting\Drawings\Released-Production\PDF\20D805-01NN REVA











REVISION HISTORY

REV

DESCRIPTION

ECN

DATE

APPROVED

ADD ZS-ZT INFORMATION 15-272

2/3/16

BDL

FRONT VIEW

LEFT VIEW

Enertech Recommends a Minimum of

2 to 2.5 Feet of Service/Installation

Access at Front and Air Coil Side

TOP VIEW

Showing Optional Filter Rack

G:\Drafting\Drawings\Released-Production\PDF\20D805-01NN REVA

Summary of Contents for ZS.

Page 1: ...GED SYSTEM WATER TO AIR HEAT PUMPS REVISION REV A 20D218 12NN 20D218 12NN REVISION HISTORY REV DESCRIPTION ECN DATE APPROVED A ADD ZS ZT INFORMATION 15 272 2 3 16 BDL REVISION HISTORY REV DESCRIPTION...

Page 2: ...tage Compressor Units 21 PSC Fan Performance Dip Switch Settings Single Stage Compressor Units 22 Unit Electrical Data ZT 024 072 ECM Models 23 Unit Electrical Data ZS 018 042 ECM Models 24 Unit Elect...

Page 3: ...se 60Hz Single Stage PSC Commercial 62 208 230V Three Phase 60Hz Single Stage PSC Commercial 63 208 230V Three Phase 60Hz Single Stage PSC DSH Commercial 64 460 or 575V Three Phase 60Hz Single Stage P...

Page 4: ...4 Enertech Global IOM ZS ZT Models SECTION 1 MODEL NOMENCLATURE AHRI PERFORMANCE DATA ZT Model Nomenclature ZS Model Nomenclature...

Page 5: ...4 ZT048 ZT060 ZT072 ZS Single Stage ECM Blower Braze Plate UNIT RATING TYPE F L COOL F L EER F L HEAT F L COP WL 19900 17 3 22600 5 4 GW 22400 29 2 18100 4 7 GL 20800 20 5 14200 3 8 WL 25000 17 9 2930...

Page 6: ...is applied covering the entire unit and attachment to the pallet Upon receipt of the unit carefully remove the shrink wrap Using a box cutter slit the shrink wrap on the cardboard top and corner posts...

Page 7: ...ANDLING PARTS CAUTION BEFORE DRILLING OR DRIVING ANY SCREWS INTO CABINET CHECK TO BE SURE THE SCREW WILL NOT HIT ANY INTERNAL PARTS OR REFRIGERANT LINES SECTION 2 INSTALLATION INTRODUCTION Components...

Page 8: ...acturer s recommendations The National Electrical Code and all local codes and ordinances Electrical Power Supply When any compressor bearing equipment is connected to a weak power supply starting cur...

Page 9: ...nit after unpacking Open both the air handler section and compressor section and remove any DUCT WORK All new ductwork shall be designed as outlined in Sheet Metal and Air Conditioning Contractors Nat...

Page 10: ...unit Service Ball Valves Hose Kits Unit Power Disconnect ZS ZT Hanger Bracket Shipped with Unit See Installation Instructions 20D244 01NN 4 Threaded Rod Attachments Source Water Out Source Water In A...

Page 11: ...t Drawings PDF 20D805 47NN REVA LEFT HAND RETURN CABINET TOP VIEW 015 017 TOP VIEW 006 012 RIGHT HAND RETURN CABINET TOP VIEW 006 012 TOP VIEW 015 017 FRONT OF UNIT FRONT OF UNIT FRONT OF UNIT FRONT O...

Page 12: ...top 2 near the bottom then remove discharge door asm from the unit 4 Carefully rotate the discharge door asm 180 deg and place the door into the opening on the end This will insure that when config u...

Page 13: ...1 01 1 44 19 22 1 01 19 56 1 09 58 02 1 44 19 22 1 01 1 01 54 02 19 56 1 09 TOP VIEW 060 072 TOP VIEW 036 048 TOP VIEW 018 030 CORNER WITH DRAIN OUTLET CORNER WITH DRAIN OUTLET CORNER WITH DRAIN OUTLE...

Page 14: ...h Desuperheater utilize FPT connections Electrical knockouts are sized to 1 2 or 3 4 conduit All views are shown with flanges for dimensional purposes Return duct flanges are factory installed All mea...

Page 15: ...N IN LEFT HAND RETURN CONFIGURATION BP SP SP SP Reference dimensional data enclosed Units utilize FPT source water connections Units with Desuperheater utilize FPT connections Electrical knockouts are...

Page 16: ...3 2 1 2 6 1 5 3 6 6 0 2 1 N A N A N A 012 20 0 7 3 2 1 2 6 1 5 3 6 6 0 2 1 N A N A N A 015 20 0 12 3 2 1 2 6 1 5 5 6 8 0 2 1 8 6 4 0 2 1 017 20 0 12 3 2 1 2 6 1 5 5 6 8 0 2 1 8 6 4 0 2 1 018 29 4 14...

Page 17: ...is is the txv filter drier access area Be sure to leave adequate clearance for any future maintenance if needed A 3 This is the source heat exchanger reversing valve access area Be sure to leave adequ...

Page 18: ...ings Released Production PDF 20D805 04NN REVA LEFT HAND RETURN BACK ISO VIEW RIGHT HAND RETURN BACK ISO VIEW UNIT FRONT RIGHT HAND RETURN UNIT FRONT LEFT HAND RETURN TOP VIEW SIDE DISCHARGE CONFIGURAT...

Page 19: ...Dimensional Data for details Optional filter rack may be used with either a 1 or a 2 thick filter UNIT PITCH FOR CONDENSATE DRAIN 1 4 1 2 Pitch CONDENSATE DRAIN FITTING PVC STUB INCLUDED WITH UNIT SE...

Page 20: ...heck the unit data plate for specific charge volume Model Number 018 024 030 036 042 048 060 072 Compressor Type Blower Fan Wheel in 10 x 8T 10 x 8T 10 x 8T 10 x 8 10 x 8 10 x 8 11 x 10T 11 x 10T Fan...

Page 21: ...B 1560 2000 1500 1900 1240 1590 910 2220 OFF OFF OFF OFF OFF OFF OFF OFF C 1470 1870 1390 1730 1110 1420 810 2000 OFF OFF OFF ON OFF OFF OFF OFF D 1420 1790 1310 1650 1000 1320 770 1990 ON OFF ON OFF...

Page 22: ...2 2560 2540 2515 2505 2495 2470 2445 2420 2390 2350 2290 2210 M 1900 060 2000 2000 1995 1998 2000 2005 2010 2005 1995 1940 1935 1885 L 1590 1605 1620 1630 1640 1645 1645 1645 1645 1640 1625 1600 Notes...

Page 23: ...luence the rest of the electrical system in the building by lowering the voltage to the lights This momentary low voltage causes light dimming The total electrical system should be evaluated with an e...

Page 24: ...24 Enertech Global IOM ZS ZT Models Unit Electrical Data ZS 018 042 ECM Models SECTION 4 UNIT DATA INFORMATION...

Page 25: ...25 IOM ZS ZT Models Enertech Global Unit Electrical Data ZS 048 072 ECM Models SECTION 4 UNIT DATA INFORMATION...

Page 26: ...26 Enertech Global IOM ZS ZT Models Unit Electrical Data ZS 018 042 PSC Models SECTION 4 UNIT DATA INFORMATION...

Page 27: ...27 IOM ZS ZT Models Enertech Global Unit Electrical Data ZS 048 072 PSC Models SECTION 4 UNIT DATA INFORMATION...

Page 28: ...PM calcium carbonate or less than 25 PPM calcium plus magnesium ions and less than 25 PPM chloride or sulfate ions In an open loop system the water quality is of no less importance Due to the inherent...

Page 29: ...m the unit for ease of gauge reading Source Water Out Source Water In Flow Center GSHP Hose Kit To From Loop Field P T Ports 2 Polyethylene Equipment Pad Typical Non Pressurized Flow Center Installati...

Page 30: ...emature pump will occur when the pump is not in the Pressurized Flow Center and Pump Mounting SECTION 5 UNIT PIPING INSTALLATION Wye Strainer Installation MANDATORY Enertech provides a Wye Strainer an...

Page 31: ...drop air is still trapped in the system This is the only way to tell if air is still trapped in the system To dead head the pump shut off the return side ball valve on the flush cart This will provide...

Page 32: ...ation 1 Turn one of the 3 way valves so that it is Figure 7 Flush Cart Connections Figure 8 Flow Center 3 Way Valves Flush Port Flush Port Flush Port Flush Port Loop Loop Loop Loop Unit Unit Unit Unit...

Page 33: ...han during the summer months In the cooling mode the heat pump is rejecting heat which relaxes the pipe This fluctuation is normal and needs to be considered when charging and pressuring the system in...

Page 34: ...st be compatible with the system materials Stability Will the brine require periodic change out or maintenance Convenience Is the antifreeze available and easy to transport and install Codes Will the...

Page 35: ...TS 9 2 HDPE 75 SDR11 3 0 HDPE 1 SDR11 4 7 HDPE 1 25 SDR11 7 5 HDPE 1 5 SDR11 9 8 HDPE 2 SDR11 15 4 Unit coaxial heat exchanger 1 Gallon Flush Cart 8 10 Gallons 10 of 1 Rubber Hose 0 4 Gallons SECTION...

Page 36: ...alve handles once the system is completed to avoid nuisance service calls Hose kits are optional but make for an easier installation since the P T ports and connections are included The hose also help...

Page 37: ...e PLUMBING INSTALLATION Notes All plumbing and piping connections must comply with local building and plumbing codes Measure the distance above the floor or shelf that the water heater is setting on t...

Page 38: ...ower loss or brown outs Short Cycle Protection A built in five minute anti short cycle ASC timer provides short cycle protection ensuring that the compressor isn t damaged due to rapid cycling Compone...

Page 39: ...eze LCT When in cooling mode if the heat exchanger temperature is lower than 30 F for 30 continuous seconds the compressor operation will be interrupted and the control will go into fault retry mode T...

Page 40: ...Faults 15 and 16 Sensor DGT and Sensor DLWT BAD Control Board Switch Settings and Diagnostics For fast and simple control board diagnosis the lockout board includes five LEDs Green High Pressure Orang...

Page 41: ...IVES AN AUXILLIARY FAULT RELAY REV B 08 30 16 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 8 UNITS WITHOUT DES...

Page 42: ...complete the DIP switch TEST must be returned to the OFF position in order to make sure the unit operates with normal sequencing delays While the unit is in Test Mode the status light bottom green wil...

Page 43: ...c heaters Cooling Operation The reversing valve is energized for cooling operation Terminal O from the thermostat is connected to the reversing valve solenoid Cooling 1st stage Y1 0 G ZS and ZT models...

Page 44: ...through the side plastic bushings installed on the hinged side of the contol box Route and trim wiring to leave enough slack to open close or remove control box Single Phase Connections High and Low V...

Page 45: ...algorithm and inbuilt current limit settings specifically for scroll compressor starting To limit the peak energy demand resulting in expensive utility contracts by the end users The Soft Start Modul...

Page 46: ...to accessible SELV circuits 4 Refer to voltage dips and interruptions section for mode of operation Normal Condition Note 3 6 min 3 min Mains Operational Voltage Green LED Control Voltage Controller O...

Page 47: ...y provides protection in case of a faulty starting capacitor EMR In such a situation the red LED will flash 4 times for 5 minutes RSBS will check the status of the starting capacitor EMR before attemp...

Page 48: ...Control Voltage 100ms Controller output Alarm indication Red LED Alarm relay contact Alarm recovery Flashing On 100ms O 90VAC Ue 140VAC Note 1 When a voltage dip and or interruption is detected the Un...

Page 49: ...start if control voltage is present the RSBS shall try to restart the compressor Mode of Operation Voltage Interruptions Mains operationalvoltage 230VAC 0VAC Green LED ControlVoltage 20ms Controllerou...

Page 50: ...ce 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 r...

Page 51: ...51 IOM ZS ZT Models Enertech Global SECTION 9A WIRING DIAGRAMS ECM FANS ONLY 208 230V Single Phase 60Hz Single or Two Stage ECM Residential...

Page 52: ...52 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 208 230V Single Phase 60Hz Single or Two Stage ECM DSH Residential...

Page 53: ...53 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 208 230V Single Phase 60Hz Single or Two Stage ECM Commercial...

Page 54: ...54 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 208 230V Three Phase 60Hz Single or Two Stage ECM Commercial...

Page 55: ...55 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 208 230V Three Phase 60Hz Single or Two Stage ECM DSH Commercial...

Page 56: ...56 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 460V Three Phase 60Hz Single or Two Stage ECM Commercial...

Page 57: ...57 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 460V Three Phase 60Hz Single or Two Stage ECM DSH Commercial...

Page 58: ...58 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 265V Single Phase 60Hz Single or Two Stage ECM Commercial...

Page 59: ...59 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 265V Single Phase 60Hz Single or Two Stage ECM DSH Commercial...

Page 60: ...60 Enertech Global IOM ZS ZT Models SECTION 9B WIRING DIAGRAMS PSC FAN ONLY 208 230V Single Phase 60Hz Single Stage PSC DSH Residential Commercial...

Page 61: ...61 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 208 230V Single Phase 60Hz Single Stage PSC Residential...

Page 62: ...62 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 208 230V Single Phase 60Hz Single Stage PSC Commercial...

Page 63: ...63 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 208 230V Three Phase 60Hz Single Stage PSC Commercial...

Page 64: ...64 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 208 230V Three Phase 60Hz Single Stage PSC DSH Commercial...

Page 65: ...65 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 460 or 575V Three Phase 60Hz Single Stage PSC Commercial...

Page 66: ...66 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 460 or 575V Three Phase 60Hz Single Stage PSC DSH Commercial...

Page 67: ...67 IOM ZS ZT Models Enertech Global SECTION 9 WIRING DIAGRAMS 265V Single Phase 60Hz Single Stage PSC Commercial...

Page 68: ...68 Enertech Global IOM ZS ZT Models SECTION 9 WIRING DIAGRAMS 265V Single Phase 60Hz Single Stage PSC DSH Commercial...

Page 69: ...Connection 042 048 AXCH101LB 10kW 60Hz 1 Phase w Circuit Breaker 060 072 AXCH151LB 15kW 60Hz 1 Phase w Circuit Breaker Single Point Connection 060 072 APSMA Pump Sharing Module The pump sharing module...

Page 70: ...ck the transformer s primary connections at the main contactor for the correct voltage Orange Black 230V Red Black 208V Correct any possible voltage drops in the main voltage 3 Set the thermostat to H...

Page 71: ...al conditions and the flow rate must be increased Example 1 EWT 50 F Model HT048 high capacity Flow rate 6 GPM Air Flow 1650 CFM HE 35 600 Btuh TD 36 600 6 x 500 11 9 F LWT 50 11 9 38 1 F Since the wa...

Page 72: ...urce Water Pressure Out Source Water Pressure Drop F F F F F F Heat of Rejection Extraction BTU HR BTU HR F F F F F F Cooling Heating F F F F F F Heating F F F Heating V A GA A Source Water Temp Diffe...

Page 73: ...15 0 34 7 47 8 60 7 74 3 74 5 75 3 73 8 72 4 11 7 36 7 50 9 64 0 77 5 83 3 86 5 86 0 83 6 15 0 38 3 53 0 66 6 80 5 83 1 86 2 85 6 83 1 18 0 39 2 54 2 68 1 82 3 82 9 86 0 85 4 82 8 1100 1100 9 Due to...

Page 74: ...72 4 11 7 37 0 51 0 64 2 77 6 83 3 86 5 86 1 83 7 15 0 38 6 53 1 66 8 80 7 83 1 86 2 85 7 83 1 18 0 39 5 54 3 68 3 82 4 82 9 86 1 85 4 82 9 ZS036 1230 1260 Heat of Extraction MBtuh Heat of Rejection M...

Page 75: ...0 15 0 29 1 41 2 54 6 67 4 66 8 68 3 65 6 61 6 18 0 30 2 42 7 56 6 69 9 67 0 68 6 65 9 62 0 11 7 38 0 51 9 67 2 80 0 86 2 91 3 89 3 85 3 15 0 39 5 53 8 69 6 82 8 86 0 91 1 89 0 84 8 18 0 40 4 55 0 71...

Page 76: ...0 4 6 9 3 1 5 3 5 1 4 3 2 1 3 3 0 1 3 3 0 11 0 2 0 4 6 1 8 4 2 1 7 3 9 1 6 3 7 12 0 2 2 5 1 2 0 4 6 1 9 4 4 1 8 4 2 14 0 2 8 6 5 2 5 5 8 2 4 5 5 2 3 5 3 11 7 1 8 4 2 1 7 3 9 1 6 3 7 1 6 3 7 13 0 2 1...

Page 77: ...1 9 4 4 1 9 4 4 1 9 4 4 15 0 2 5 5 8 2 4 5 5 2 4 5 5 2 3 5 3 17 0 3 1 7 2 3 0 6 9 3 0 6 9 3 0 6 9 11 7 1 7 3 9 1 7 3 9 1 6 3 7 1 6 3 7 13 0 2 1 4 8 2 0 4 6 1 9 4 4 1 9 4 4 15 0 2 6 6 0 2 5 5 8 2 4 5...

Page 78: ...sh water HE or HR in BTU HR A 10 variance from table is allowed Always use the same pressure gauge temperature measuring device Water flow must be in range of table If system has too much water flow p...

Page 79: ...6 Discharge Suction Subcooling Superheat Water Temp Rise Air Temp Drop F GPM Ton PSIG PSIG F F F F DB 2 7 175 220 105 144 16 23 6 37 10 20 15 28 3 174 208 105 144 15 20 7 38 8 15 15 28 2 7 244 295 116...

Page 80: ...r Temp Rise F GPM Ton PSIG PSIG F F F F DB 2 7 255 315 74 91 11 20 6 16 2 5 15 23 3 256 325 74 92 11 22 6 16 2 4 15 24 2 7 283 343 104 125 10 17 9 18 4 7 21 30 3 283 354 103 126 10 17 8 17 3 6 21 31 2...

Page 81: ...contactor operation See Note A No Yes OK Single Phase 208 230 C Line Winding R Run Winding S Start Winding R efer to th e com pressor w on t start flow chart Is the c om pressor run ning N o O K S hut...

Page 82: ...Normal Low Normal High Low High Normal Cool High High Normal Normal High Normal High Low High Low Load Water Flow Heat High High Normal Normal High Normal High Low High Cool Low Low Normal Low Normal...

Page 83: ...ed in discharge line always disconnect during troubleshooting Source loop IN Source loop OUT F psi F psi Return Air F Supply Air F GPM Customer Job Name ____________________________________________ Da...

Page 84: ...mper see Controls Section for location and jumper the two FS terminals located between blue and violet wires on the right side of the board together to complete the flow switch circuit Determine if th...

Page 85: ...brazing Replace filter drier any time the circuit is opened Water heat exchanger Check for high pressure drop or low temperature drop across the coil It could be scaled If scaled clean with condenser...

Page 86: ...uld be evaluated by the electric utility provider Note Proper Power Supply Evaluation CAUTION CHECK COMPRESSOR AMP DRAW TO VERIFY COMPRESSOR ROTATION ON THREE PHASE UNITS COMPARE AGAINST UNIT ELECTRIC...

Page 87: ...submitter Ifdifferent than company OTHER NOTES _______________________________________________________________________________ _________________________________________________________________________...

Page 88: ...__________ PHONE ____________________ ADDRESS __________________________________ CITY _________________STATE PROV ________________ POSTAL CODE _____________ EMAIL OPTIONAL ____________________________...

Page 89: ...h product may change without notice and may not be as described herein For the most up to date information please visit our website or contact our Customer Service department at info enertechgeo com S...

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