Enertech YT024 User manual

Installation & Operations Manual
YT MODELS PACKAGED WATER-TO-AIR MULTI-POSITIONAL HEAT PUMPS
REVISION:B
20D218-01NN
20D218-01NN
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InstallationVideo
Flex Connector Flex Connector
Supply Air
Return and Supply Air Duct System
Maintain supply
ange duct size
for 12”minimum
vertical height
Return Air
Equipment Pad
2” Polyethylene Foam

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 ......................................................................................................................... 7
Unit Placement...................................................................................................................................... 8
Typical Supply and Return Ductwork Connections........................................................................... 9
SECTION 4: UNIT DATA INFORMATION
Dimensional Data and Installation Clearances............................................................................... 10
Unit Dimensional Data........................................................................................................................ 10
Side and Back Discharge Dimensional Data................................................................................... 11
ECM Fan Performance - Two-Stage Compressor Units................................................................... 12
Unit Physical Data ............................................................................................................................... 12
Unit Electrial Data ............................................................................................................................... 14
SECTION 5: GENERAL UNIT ASSEMBLY
Pre-Installation Checklist .................................................................................................................... 15
Field Selectable Return Air Pattern ................................................................................................... 15
Control Box Installation....................................................................................................................... 16
Return Duct Flange Kit Installation .................................................................................................... 21
Optional Filter Rack Kit Installation .................................................................................................... 21
SECTION 7: UNIT PIPING INSTALLATION
Water Quality ...................................................................................................................................... 23
Interior Piping....................................................................................................................................... 24
Condensation Drain Connection...................................................................................................... 24
Typical Pressurized Flow Center Installation ..................................................................................... 24
Flushing & Charging a Pressurized Flow Center............................................................................... 24
Pressurized Flow Center and Pump Mounting ................................................................................. 26
Typical Non-Pressurized Flow Center Installation ............................................................................. 29
Antifreeze Overview .......................................................................................................................... 30
Antifreeze Charging ........................................................................................................................... 31
APSMA Pump Sharing Module ......................................................................................................... 33
Open Loop Piping and Connections................................................................................................ 34
SECTION 8: DESUPERHEATER INSTALLATION
Desuperheater Installation................................................................................................................. 36
Desuperheater Installation with Single Water Heater ..................................................................... 38
Desuperheater Installation with Preheat Tank ................................................................................. 38
SECTION 9: AUXILIARY HEATER INSTALLATION
Auxiliary Heater Nomenclature Decoder......................................................................................... 39
Heater Electrical Data........................................................................................................................ 43
SECTION: 10 ELECTRICAL CONNECTIONS
High and Low Voltage Single Phase Connections .......................................................................... 44

SECTION 11: CONTROLS
Microprocessor Features and Operations........................................................................................ 45
Safety Controls .................................................................................................................................... 46
Temperature Sensor Operating Range ............................................................................................ 47
Fault Retry ............................................................................................................................................ 47
LED Identication ................................................................................................................................ 48
Diagnostics: ......................................................................................................................................... 49
Sequence of Operation: ................................................................................................................... 49
Factory Installed Soft Start Option..................................................................................................... 50
SECTION 12: SOFT START CONTROLS
Soft Start Module ................................................................................................................................ 51
Wiring Diagram ................................................................................................................................... 51
Mode of Operation ............................................................................................................................ 52
Mode of Operation (Voltage Interuptions) ...................................................................................... 54
Mode of Operation (Voltage Dips) ................................................................................................... 55
LED Status Indication .......................................................................................................................... 56
SECTION 13: WIRING DIAGRAMS
Two Stage, ECM, 208/230V 60Hz, Single Phase Residential............................................................ 57
Two Stage, ECM, DSH, 208/230V, 60Hz, Single Phase Residential/Commercial ........................... 58
Two Stage, ECM, 208/230V,60Hz, Single Phase Commercial ......................................................... 59
Two Stage, ECM, 208/230V, 60Hz, Three Phase Commercial ......................................................... 60
Two Stage, ECM, DSH, 208/230V, 60Hz, Three Phase Commercial ................................................ 61
Two Stage, ECM, 460V, 60Hz, Three Phase Commercial................................................................. 62
Two Stage, ECM, DSH, 460V, 60Hz, Three Phase Commercial........................................................ 63
SECTION 14: EQUIPMENT START-UP PROCEDURES
Equipment Start-Up Process............................................................................................................... 64
Equipment Start-Up Form................................................................................................................... 65
Heat of Extraction/Heat of Rejection Tables.................................................................................... 66
Pressure Drop Tables ........................................................................................................................... 67
Performance Check........................................................................................................................... 67
SECTION 15: TROUBLESHOOTING
QR Codes for Installation or Troubleshooting Tip Videos ................................................................ 68
Operating Parameters ....................................................................................................................... 69
Compressor Troubleshooting ............................................................................................................. 70
Refrigeration Troubleshooting............................................................................................................ 71
Superheat/Subcooling Conditions.................................................................................................... 71
Troubleshooting Worksheet................................................................................................................ 72
Troubleshooting Tips............................................................................................................................ 73
SECTION 16: WARRANTY FORMS
Claim Form .......................................................................................................................................... 76
Registration Form ................................................................................................................................ 77

4
Enertech Global IOM, YT Models
SECTION 1: MODEL NOMENCLATURE & AHRI PERFORMANCE DATA
Nomenclature Decoder
GROUND WATER HEAT PUMP
MODEL Full Load Cooling Full Load Heating Part Load Cooling Part Load Heating
Btu/hr EER Btu/hr COP Btu/hr EER Btu/hr COP
YT024 29,200 25.7 23,400 5.3 22,200 33.6 17,500 5.5
YT036 44,300 27.0 37,500 5.5 32,700 37.4 26,600 5.8
YT048 57,100 26.2 49,500 5.2 44,100 35.3 35,900 5.5
YT060 68,700 24.8 61,700 4.9 51,900 33.4 42,900 5.2
YT072 77,600 23.2 71,100 4.6 60,800 29.5 52,100 4.8
Note:
Rated in accordance with ISO Standard 13256-1 which includes Pump Penalties.
Heating capacities based on 68.0°F DB, 59.0°F WB entering air temperature.
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.
GROUND LOOP HEAT PUMP
MODEL Full Load Cooling Full Load Heating Part Load Cooling Part Load Heating
Btu/hr EER Btu/hr COP Btu/hr EER Btu/hr COP
YT024 27,100 19.9 19,000 4.3 21,400 28.2 15,200 4.8
YT036 41,200 20.9 29,100 4.5 31,500 31.3 23,300 5.1
YT048 53,300 20.2 39,900 4.3 42,600 29.6 32,000 4.9
YT060 64,300 19.3 49,200 4.1 50,000 28.0 37,700 4.6
YT072 71,900 18.0 56,200 3.8 58,500 24.8 45,800 4.4
AHRI Performance Data

5
IOM, YT Models Enertech Global
SECTION 2: INSTALLATION INTRODUCTION
Introduction
This geothermal heat pump provides heating
and cooling as well as optional domestic water
heating capability. Engineering and quality
control is built into every geothermal unit. Good
performance depends on proper application
and correct installation. All YT Models do not
have more than 2% air leakage
Notices, Cautions, Warnings, & Dangers
“NOTICE” Notication of installation, operation
or maintenance information which is important,
but which is NOT hazard-related.
“CAUTION” Indicates a potentially hazardous
situation or an unsafe practice which, if not
avoided, COULD result in minor or moderate
injury or product or property damage.
“WARNING” Indicates potentially hazardous
situation which, if not avoided, COULD result in
death or serious injury.
“DANGER” Indicates an immediate hazardous
situation which, if not avoided, WILL result in
death or serious injury.
Inspection:
Upon receipt of any geothermal equipment,
carefully check the shipment against the
packing slip and the freight company bill of
lading. Verify that all units and packages have
been received. Inspect the packaging of
each package and each unit for damages.
Insure that the carrier makes proper notation of
any and all damages or shortage on all bill of
lading papers. Concealed damage should be
reported to the freight company within 15 days.
If not led within 15 days the freight company
can deny all claims.
Note: Notify Enertech Global’s shipping
department of all damages within 15 days. It
is the responsibility of the purchaser to le all
necessary claims with the freight company.
Un-packaging
Enertech units are mounted to wooden
pallets for easy handling during shipment and
installation. Units are protected during shipment
with durable cardboard corner posts, top and
⚠ NOTICE ⚠
PRIOR TO OPERATING THE UNIT, REMOVE AND
DISCARD THE BLOWER MOTOR ARMATURE
SUPPORT BRACKET LOCATED ON THE BACK
OF THE BLOWER. IF APPLICABLE, REMOVE
AND DISCARD THE BLOWER SHIPPING
BRACKET LOCATED ON THE BOTTOM OR SIDE
OF THE BLOWER HOUSING.
FAILURE TO REMOVE THESES BRACKETS
COULD RESULT IN NOISY OPERATION AND
EQUIPMENT DAMAGE.
⚠ CAUTION ⚠
ALL GEOTHERMAL EQUIPMENT UNLESS
SPECIFIED “OUTDOOR” IS DESIGNED FOR
INDOOR INSTALLATION ONLY. DO NOT
INSTALL OR STORE UNIT IN A CORROSIVE
ENVIRONMENT OR IN A LOCATION WHERE
TEMPERATURE AND HUMIDITY ARE SUBJECT TO
EXTREMES.
USE OF EQUIPMENT NOT CERTIFIED AND
MARKED FOR OUTDOOR APPLICATION WILL
VOID ALL WARRANTIES.
⚠ WARNING ⚠
FAILURE TO FOLLOW THIS CAUTION MAY
RESULT IN PERSONAL INJURY. USE CARE AND
WEAR APPROPRIATE PROTECTIVE CLOTHING,
SAFETY GLASSES AND PROTECTIVE GLOVES
WHEN SERVICING UNIT AND HANDLING
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.